1 /*
2  * Copyright (C) 2008 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *      http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package android.content.res;
18 
19 import com.android.internal.util.XmlUtils;
20 
21 import org.xmlpull.v1.XmlPullParser;
22 import org.xmlpull.v1.XmlPullParserException;
23 import org.xmlpull.v1.XmlSerializer;
24 
25 import android.annotation.IntDef;
26 import android.annotation.NonNull;
27 import android.annotation.Nullable;
28 import android.content.pm.ActivityInfo;
29 import android.content.pm.ActivityInfo.Config;
30 import android.os.Build;
31 import android.os.LocaleList;
32 import android.os.Parcel;
33 import android.os.Parcelable;
34 import android.text.TextUtils;
35 import android.view.View;
36 
37 import java.io.IOException;
38 import java.lang.annotation.Retention;
39 import java.lang.annotation.RetentionPolicy;
40 import java.util.ArrayList;
41 import java.util.Locale;
42 
43 /**
44  * This class describes all device configuration information that can
45  * impact the resources the application retrieves.  This includes both
46  * user-specified configuration options (locale list and scaling) as well
47  * as device configurations (such as input modes, screen size and screen orientation).
48  * <p>You can acquire this object from {@link Resources}, using {@link
49  * Resources#getConfiguration}. Thus, from an activity, you can get it by chaining the request
50  * with {@link android.app.Activity#getResources}:</p>
51  * <pre>Configuration config = getResources().getConfiguration();</pre>
52  */
53 public final class Configuration implements Parcelable, Comparable<Configuration> {
54     /** @hide */
55     public static final Configuration EMPTY = new Configuration();
56 
57     /**
58      * Current user preference for the scaling factor for fonts, relative
59      * to the base density scaling.
60      */
61     public float fontScale;
62 
63     /**
64      * IMSI MCC (Mobile Country Code), corresponding to
65      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mcc</a>
66      * resource qualifier.  0 if undefined.
67      */
68     public int mcc;
69 
70     /**
71      * IMSI MNC (Mobile Network Code), corresponding to
72      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#MccQualifier">mnc</a>
73      * resource qualifier.  0 if undefined. Note that the actual MNC may be 0; in order to check
74      * for this use the {@link #MNC_ZERO} symbol.
75      */
76     public int mnc;
77 
78     /**
79      * Constant used to to represent MNC (Mobile Network Code) zero.
80      * 0 cannot be used, since it is used to represent an undefined MNC.
81      */
82     public static final int MNC_ZERO = 0xffff;
83 
84     /**
85      * Current user preference for the locale, corresponding to
86      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#LocaleQualifier">locale</a>
87      * resource qualifier.
88      *
89      * @deprecated Do not set or read this directly. Use {@link #getLocales()} and
90      * {@link #setLocales(LocaleList)}. If only the primary locale is needed,
91      * <code>getLocales().get(0)</code> is now the preferred accessor.
92      */
93     @Deprecated public Locale locale;
94 
95     private LocaleList mLocaleList;
96 
97     /**
98      * Locale should persist on setting.  This is hidden because it is really
99      * questionable whether this is the right way to expose the functionality.
100      * @hide
101      */
102     public boolean userSetLocale;
103 
104     /** Constant for {@link #screenLayout}: bits that encode the size. */
105     public static final int SCREENLAYOUT_SIZE_MASK = 0x0f;
106     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
107      * value indicating that no size has been set. */
108     public static final int SCREENLAYOUT_SIZE_UNDEFINED = 0x00;
109     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
110      * value indicating the screen is at least approximately 320x426 dp units,
111      * corresponds to the
112      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">small</a>
113      * resource qualifier.
114      * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
115      * Multiple Screens</a> for more information. */
116     public static final int SCREENLAYOUT_SIZE_SMALL = 0x01;
117     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
118      * value indicating the screen is at least approximately 320x470 dp units,
119      * corresponds to the
120      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">normal</a>
121      * resource qualifier.
122      * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
123      * Multiple Screens</a> for more information. */
124     public static final int SCREENLAYOUT_SIZE_NORMAL = 0x02;
125     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
126      * value indicating the screen is at least approximately 480x640 dp units,
127      * corresponds to the
128      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">large</a>
129      * resource qualifier.
130      * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
131      * Multiple Screens</a> for more information. */
132     public static final int SCREENLAYOUT_SIZE_LARGE = 0x03;
133     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_SIZE_MASK}
134      * value indicating the screen is at least approximately 720x960 dp units,
135      * corresponds to the
136      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenSizeQualifier">xlarge</a>
137      * resource qualifier.
138      * See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
139      * Multiple Screens</a> for more information.*/
140     public static final int SCREENLAYOUT_SIZE_XLARGE = 0x04;
141 
142     /** Constant for {@link #screenLayout}: bits that encode the aspect ratio. */
143     public static final int SCREENLAYOUT_LONG_MASK = 0x30;
144     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK}
145      * value indicating that no size has been set. */
146     public static final int SCREENLAYOUT_LONG_UNDEFINED = 0x00;
147     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK}
148      * value that corresponds to the
149      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">notlong</a>
150      * resource qualifier. */
151     public static final int SCREENLAYOUT_LONG_NO = 0x10;
152     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LONG_MASK}
153      * value that corresponds to the
154      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenAspectQualifier">long</a>
155      * resource qualifier. */
156     public static final int SCREENLAYOUT_LONG_YES = 0x20;
157 
158     /** Constant for {@link #screenLayout}: bits that encode the layout direction. */
159     public static final int SCREENLAYOUT_LAYOUTDIR_MASK = 0xC0;
160     /** Constant for {@link #screenLayout}: bits shift to get the layout direction. */
161     public static final int SCREENLAYOUT_LAYOUTDIR_SHIFT = 6;
162     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK}
163      * value indicating that no layout dir has been set. */
164     public static final int SCREENLAYOUT_LAYOUTDIR_UNDEFINED = 0x00;
165     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK}
166      * value indicating that a layout dir has been set to LTR. */
167     public static final int SCREENLAYOUT_LAYOUTDIR_LTR = 0x01 << SCREENLAYOUT_LAYOUTDIR_SHIFT;
168     /** Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_LAYOUTDIR_MASK}
169      * value indicating that a layout dir has been set to RTL. */
170     public static final int SCREENLAYOUT_LAYOUTDIR_RTL = 0x02 << SCREENLAYOUT_LAYOUTDIR_SHIFT;
171 
172     /** Constant for {@link #screenLayout}: bits that encode roundness of the screen. */
173     public static final int SCREENLAYOUT_ROUND_MASK = 0x300;
174     /** @hide Constant for {@link #screenLayout}: bit shift to get to screen roundness bits */
175     public static final int SCREENLAYOUT_ROUND_SHIFT = 8;
176     /**
177      * Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_ROUND_MASK} value indicating
178      * that it is unknown whether or not the screen has a round shape.
179      */
180     public static final int SCREENLAYOUT_ROUND_UNDEFINED = 0x00;
181     /**
182      * Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_ROUND_MASK} value indicating
183      * that the screen does not have a rounded shape.
184      */
185     public static final int SCREENLAYOUT_ROUND_NO = 0x1 << SCREENLAYOUT_ROUND_SHIFT;
186     /**
187      * Constant for {@link #screenLayout}: a {@link #SCREENLAYOUT_ROUND_MASK} value indicating
188      * that the screen has a rounded shape. Corners may not be visible to the user;
189      * developers should pay special attention to the {@link android.view.WindowInsets} delivered
190      * to views for more information about ensuring content is not obscured.
191      *
192      * <p>Corresponds to the <code>-round</code> resource qualifier.</p>
193      */
194     public static final int SCREENLAYOUT_ROUND_YES = 0x2 << SCREENLAYOUT_ROUND_SHIFT;
195 
196     /** Constant for {@link #screenLayout}: a value indicating that screenLayout is undefined */
197     public static final int SCREENLAYOUT_UNDEFINED = SCREENLAYOUT_SIZE_UNDEFINED |
198             SCREENLAYOUT_LONG_UNDEFINED | SCREENLAYOUT_LAYOUTDIR_UNDEFINED |
199             SCREENLAYOUT_ROUND_UNDEFINED;
200 
201     /**
202      * Special flag we generate to indicate that the screen layout requires
203      * us to use a compatibility mode for apps that are not modern layout
204      * aware.
205      * @hide
206      */
207     public static final int SCREENLAYOUT_COMPAT_NEEDED = 0x10000000;
208 
209     /**
210      * Bit mask of overall layout of the screen.  Currently there are four
211      * fields:
212      * <p>The {@link #SCREENLAYOUT_SIZE_MASK} bits define the overall size
213      * of the screen.  They may be one of
214      * {@link #SCREENLAYOUT_SIZE_SMALL}, {@link #SCREENLAYOUT_SIZE_NORMAL},
215      * {@link #SCREENLAYOUT_SIZE_LARGE}, or {@link #SCREENLAYOUT_SIZE_XLARGE}.</p>
216      *
217      * <p>The {@link #SCREENLAYOUT_LONG_MASK} defines whether the screen
218      * is wider/taller than normal.  They may be one of
219      * {@link #SCREENLAYOUT_LONG_NO} or {@link #SCREENLAYOUT_LONG_YES}.</p>
220      *
221      * <p>The {@link #SCREENLAYOUT_LAYOUTDIR_MASK} defines whether the screen layout
222      * is either LTR or RTL.  They may be one of
223      * {@link #SCREENLAYOUT_LAYOUTDIR_LTR} or {@link #SCREENLAYOUT_LAYOUTDIR_RTL}.</p>
224      *
225      * <p>The {@link #SCREENLAYOUT_ROUND_MASK} defines whether the screen has a rounded
226      * shape. They may be one of {@link #SCREENLAYOUT_ROUND_NO} or {@link #SCREENLAYOUT_ROUND_YES}.
227      * </p>
228      *
229      * <p>See <a href="{@docRoot}guide/practices/screens_support.html">Supporting
230      * Multiple Screens</a> for more information.</p>
231      */
232     public int screenLayout;
233 
234     /** @hide */
resetScreenLayout(int curLayout)235     static public int resetScreenLayout(int curLayout) {
236         return (curLayout&~(SCREENLAYOUT_LONG_MASK | SCREENLAYOUT_SIZE_MASK
237                         | SCREENLAYOUT_COMPAT_NEEDED))
238                 | (SCREENLAYOUT_LONG_YES | SCREENLAYOUT_SIZE_XLARGE);
239     }
240 
241     /** @hide */
reduceScreenLayout(int curLayout, int longSizeDp, int shortSizeDp)242     static public int reduceScreenLayout(int curLayout, int longSizeDp, int shortSizeDp) {
243         int screenLayoutSize;
244         boolean screenLayoutLong;
245         boolean screenLayoutCompatNeeded;
246 
247         // These semi-magic numbers define our compatibility modes for
248         // applications with different screens.  These are guarantees to
249         // app developers about the space they can expect for a particular
250         // configuration.  DO NOT CHANGE!
251         if (longSizeDp < 470) {
252             // This is shorter than an HVGA normal density screen (which
253             // is 480 pixels on its long side).
254             screenLayoutSize = SCREENLAYOUT_SIZE_SMALL;
255             screenLayoutLong = false;
256             screenLayoutCompatNeeded = false;
257         } else {
258             // What size is this screen screen?
259             if (longSizeDp >= 960 && shortSizeDp >= 720) {
260                 // 1.5xVGA or larger screens at medium density are the point
261                 // at which we consider it to be an extra large screen.
262                 screenLayoutSize = SCREENLAYOUT_SIZE_XLARGE;
263             } else if (longSizeDp >= 640 && shortSizeDp >= 480) {
264                 // VGA or larger screens at medium density are the point
265                 // at which we consider it to be a large screen.
266                 screenLayoutSize = SCREENLAYOUT_SIZE_LARGE;
267             } else {
268                 screenLayoutSize = SCREENLAYOUT_SIZE_NORMAL;
269             }
270 
271             // If this screen is wider than normal HVGA, or taller
272             // than FWVGA, then for old apps we want to run in size
273             // compatibility mode.
274             if (shortSizeDp > 321 || longSizeDp > 570) {
275                 screenLayoutCompatNeeded = true;
276             } else {
277                 screenLayoutCompatNeeded = false;
278             }
279 
280             // Is this a long screen?
281             if (((longSizeDp*3)/5) >= (shortSizeDp-1)) {
282                 // Anything wider than WVGA (5:3) is considering to be long.
283                 screenLayoutLong = true;
284             } else {
285                 screenLayoutLong = false;
286             }
287         }
288 
289         // Now reduce the last screenLayout to not be better than what we
290         // have found.
291         if (!screenLayoutLong) {
292             curLayout = (curLayout&~SCREENLAYOUT_LONG_MASK) | SCREENLAYOUT_LONG_NO;
293         }
294         if (screenLayoutCompatNeeded) {
295             curLayout |= Configuration.SCREENLAYOUT_COMPAT_NEEDED;
296         }
297         int curSize = curLayout&SCREENLAYOUT_SIZE_MASK;
298         if (screenLayoutSize < curSize) {
299             curLayout = (curLayout&~SCREENLAYOUT_SIZE_MASK) | screenLayoutSize;
300         }
301         return curLayout;
302     }
303 
304     /** @hide */
configurationDiffToString(int diff)305     public static String configurationDiffToString(int diff) {
306         ArrayList<String> list = new ArrayList<>();
307         if ((diff & ActivityInfo.CONFIG_MCC) != 0) {
308             list.add("CONFIG_MCC");
309         }
310         if ((diff & ActivityInfo.CONFIG_MNC) != 0) {
311             list.add("CONFIG_MNC");
312         }
313         if ((diff & ActivityInfo.CONFIG_LOCALE) != 0) {
314             list.add("CONFIG_LOCALE");
315         }
316         if ((diff & ActivityInfo.CONFIG_TOUCHSCREEN) != 0) {
317             list.add("CONFIG_TOUCHSCREEN");
318         }
319         if ((diff & ActivityInfo.CONFIG_KEYBOARD) != 0) {
320             list.add("CONFIG_KEYBOARD");
321         }
322         if ((diff & ActivityInfo.CONFIG_KEYBOARD_HIDDEN) != 0) {
323             list.add("CONFIG_KEYBOARD_HIDDEN");
324         }
325         if ((diff & ActivityInfo.CONFIG_NAVIGATION) != 0) {
326             list.add("CONFIG_NAVIGATION");
327         }
328         if ((diff & ActivityInfo.CONFIG_ORIENTATION) != 0) {
329             list.add("CONFIG_ORIENTATION");
330         }
331         if ((diff & ActivityInfo.CONFIG_SCREEN_LAYOUT) != 0) {
332             list.add("CONFIG_SCREEN_LAYOUT");
333         }
334         if ((diff & ActivityInfo.CONFIG_UI_MODE) != 0) {
335             list.add("CONFIG_UI_MODE");
336         }
337         if ((diff & ActivityInfo.CONFIG_SCREEN_SIZE) != 0) {
338             list.add("CONFIG_SCREEN_SIZE");
339         }
340         if ((diff & ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE) != 0) {
341             list.add("CONFIG_SMALLEST_SCREEN_SIZE");
342         }
343         if ((diff & ActivityInfo.CONFIG_LAYOUT_DIRECTION) != 0) {
344             list.add("CONFIG_LAYOUT_DIRECTION");
345         }
346         if ((diff & ActivityInfo.CONFIG_FONT_SCALE) != 0) {
347             list.add("CONFIG_FONT_SCALE");
348         }
349         StringBuilder builder = new StringBuilder("{");
350         for (int i = 0, n = list.size(); i < n; i++) {
351             builder.append(list.get(i));
352             if (i != n - 1) {
353                 builder.append(", ");
354             }
355         }
356         builder.append("}");
357         return builder.toString();
358     }
359 
360     /**
361      * Check if the Configuration's current {@link #screenLayout} is at
362      * least the given size.
363      *
364      * @param size The desired size, either {@link #SCREENLAYOUT_SIZE_SMALL},
365      * {@link #SCREENLAYOUT_SIZE_NORMAL}, {@link #SCREENLAYOUT_SIZE_LARGE}, or
366      * {@link #SCREENLAYOUT_SIZE_XLARGE}.
367      * @return Returns true if the current screen layout size is at least
368      * the given size.
369      */
isLayoutSizeAtLeast(int size)370     public boolean isLayoutSizeAtLeast(int size) {
371         int cur = screenLayout&SCREENLAYOUT_SIZE_MASK;
372         if (cur == SCREENLAYOUT_SIZE_UNDEFINED) return false;
373         return cur >= size;
374     }
375 
376     /** Constant for {@link #touchscreen}: a value indicating that no value has been set. */
377     public static final int TOUCHSCREEN_UNDEFINED = 0;
378     /** Constant for {@link #touchscreen}, value corresponding to the
379      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">notouch</a>
380      * resource qualifier. */
381     public static final int TOUCHSCREEN_NOTOUCH = 1;
382     /** @deprecated Not currently supported or used. */
383     @Deprecated public static final int TOUCHSCREEN_STYLUS = 2;
384     /** Constant for {@link #touchscreen}, value corresponding to the
385      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#TouchscreenQualifier">finger</a>
386      * resource qualifier. */
387     public static final int TOUCHSCREEN_FINGER = 3;
388 
389     /**
390      * The kind of touch screen attached to the device.
391      * One of: {@link #TOUCHSCREEN_NOTOUCH}, {@link #TOUCHSCREEN_FINGER}.
392      */
393     public int touchscreen;
394 
395     /** Constant for {@link #keyboard}: a value indicating that no value has been set. */
396     public static final int KEYBOARD_UNDEFINED = 0;
397     /** Constant for {@link #keyboard}, value corresponding to the
398      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">nokeys</a>
399      * resource qualifier. */
400     public static final int KEYBOARD_NOKEYS = 1;
401     /** Constant for {@link #keyboard}, value corresponding to the
402      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">qwerty</a>
403      * resource qualifier. */
404     public static final int KEYBOARD_QWERTY = 2;
405     /** Constant for {@link #keyboard}, value corresponding to the
406      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ImeQualifier">12key</a>
407      * resource qualifier. */
408     public static final int KEYBOARD_12KEY = 3;
409 
410     /**
411      * The kind of keyboard attached to the device.
412      * One of: {@link #KEYBOARD_NOKEYS}, {@link #KEYBOARD_QWERTY},
413      * {@link #KEYBOARD_12KEY}.
414      */
415     public int keyboard;
416 
417     /** Constant for {@link #keyboardHidden}: a value indicating that no value has been set. */
418     public static final int KEYBOARDHIDDEN_UNDEFINED = 0;
419     /** Constant for {@link #keyboardHidden}, value corresponding to the
420      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keysexposed</a>
421      * resource qualifier. */
422     public static final int KEYBOARDHIDDEN_NO = 1;
423     /** Constant for {@link #keyboardHidden}, value corresponding to the
424      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#KeyboardAvailQualifier">keyshidden</a>
425      * resource qualifier. */
426     public static final int KEYBOARDHIDDEN_YES = 2;
427     /** Constant matching actual resource implementation. {@hide} */
428     public static final int KEYBOARDHIDDEN_SOFT = 3;
429 
430     /**
431      * A flag indicating whether any keyboard is available.  Unlike
432      * {@link #hardKeyboardHidden}, this also takes into account a soft
433      * keyboard, so if the hard keyboard is hidden but there is soft
434      * keyboard available, it will be set to NO.  Value is one of:
435      * {@link #KEYBOARDHIDDEN_NO}, {@link #KEYBOARDHIDDEN_YES}.
436      */
437     public int keyboardHidden;
438 
439     /** Constant for {@link #hardKeyboardHidden}: a value indicating that no value has been set. */
440     public static final int HARDKEYBOARDHIDDEN_UNDEFINED = 0;
441     /** Constant for {@link #hardKeyboardHidden}, value corresponding to the
442      * physical keyboard being exposed. */
443     public static final int HARDKEYBOARDHIDDEN_NO = 1;
444     /** Constant for {@link #hardKeyboardHidden}, value corresponding to the
445      * physical keyboard being hidden. */
446     public static final int HARDKEYBOARDHIDDEN_YES = 2;
447 
448     /**
449      * A flag indicating whether the hard keyboard has been hidden.  This will
450      * be set on a device with a mechanism to hide the keyboard from the
451      * user, when that mechanism is closed.  One of:
452      * {@link #HARDKEYBOARDHIDDEN_NO}, {@link #HARDKEYBOARDHIDDEN_YES}.
453      */
454     public int hardKeyboardHidden;
455 
456     /** Constant for {@link #navigation}: a value indicating that no value has been set. */
457     public static final int NAVIGATION_UNDEFINED = 0;
458     /** Constant for {@link #navigation}, value corresponding to the
459      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">nonav</a>
460      * resource qualifier. */
461     public static final int NAVIGATION_NONAV = 1;
462     /** Constant for {@link #navigation}, value corresponding to the
463      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">dpad</a>
464      * resource qualifier. */
465     public static final int NAVIGATION_DPAD = 2;
466     /** Constant for {@link #navigation}, value corresponding to the
467      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">trackball</a>
468      * resource qualifier. */
469     public static final int NAVIGATION_TRACKBALL = 3;
470     /** Constant for {@link #navigation}, value corresponding to the
471      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavigationQualifier">wheel</a>
472      * resource qualifier. */
473     public static final int NAVIGATION_WHEEL = 4;
474 
475     /**
476      * The kind of navigation method available on the device.
477      * One of: {@link #NAVIGATION_NONAV}, {@link #NAVIGATION_DPAD},
478      * {@link #NAVIGATION_TRACKBALL}, {@link #NAVIGATION_WHEEL}.
479      */
480     public int navigation;
481 
482     /** Constant for {@link #navigationHidden}: a value indicating that no value has been set. */
483     public static final int NAVIGATIONHIDDEN_UNDEFINED = 0;
484     /** Constant for {@link #navigationHidden}, value corresponding to the
485      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navexposed</a>
486      * resource qualifier. */
487     public static final int NAVIGATIONHIDDEN_NO = 1;
488     /** Constant for {@link #navigationHidden}, value corresponding to the
489      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NavAvailQualifier">navhidden</a>
490      * resource qualifier. */
491     public static final int NAVIGATIONHIDDEN_YES = 2;
492 
493     /**
494      * A flag indicating whether any 5-way or DPAD navigation available.
495      * This will be set on a device with a mechanism to hide the navigation
496      * controls from the user, when that mechanism is closed.  One of:
497      * {@link #NAVIGATIONHIDDEN_NO}, {@link #NAVIGATIONHIDDEN_YES}.
498      */
499     public int navigationHidden;
500 
501     /** Constant for {@link #orientation}: a value indicating that no value has been set. */
502     public static final int ORIENTATION_UNDEFINED = 0;
503     /** Constant for {@link #orientation}, value corresponding to the
504      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">port</a>
505      * resource qualifier. */
506     public static final int ORIENTATION_PORTRAIT = 1;
507     /** Constant for {@link #orientation}, value corresponding to the
508      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#OrientationQualifier">land</a>
509      * resource qualifier. */
510     public static final int ORIENTATION_LANDSCAPE = 2;
511     /** @deprecated Not currently supported or used. */
512     @Deprecated public static final int ORIENTATION_SQUARE = 3;
513 
514     /**
515      * Overall orientation of the screen.  May be one of
516      * {@link #ORIENTATION_LANDSCAPE}, {@link #ORIENTATION_PORTRAIT}.
517      */
518     public int orientation;
519 
520     /** Constant for {@link #uiMode}: bits that encode the mode type. */
521     public static final int UI_MODE_TYPE_MASK = 0x0f;
522     /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
523      * value indicating that no mode type has been set. */
524     public static final int UI_MODE_TYPE_UNDEFINED = 0x00;
525     /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
526      * value that corresponds to
527      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">no
528      * UI mode</a> resource qualifier specified. */
529     public static final int UI_MODE_TYPE_NORMAL = 0x01;
530     /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
531      * value that corresponds to the
532      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">desk</a>
533      * resource qualifier. */
534     public static final int UI_MODE_TYPE_DESK = 0x02;
535     /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
536      * value that corresponds to the
537      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">car</a>
538      * resource qualifier. */
539     public static final int UI_MODE_TYPE_CAR = 0x03;
540     /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
541      * value that corresponds to the
542      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">television</a>
543      * resource qualifier. */
544     public static final int UI_MODE_TYPE_TELEVISION = 0x04;
545     /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
546      * value that corresponds to the
547      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">appliance</a>
548      * resource qualifier. */
549     public static final int UI_MODE_TYPE_APPLIANCE = 0x05;
550     /** Constant for {@link #uiMode}: a {@link #UI_MODE_TYPE_MASK}
551      * value that corresponds to the
552      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#UiModeQualifier">watch</a>
553      * resource qualifier. */
554     public static final int UI_MODE_TYPE_WATCH = 0x06;
555 
556     /** Constant for {@link #uiMode}: bits that encode the night mode. */
557     public static final int UI_MODE_NIGHT_MASK = 0x30;
558     /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK}
559      * value indicating that no mode type has been set. */
560     public static final int UI_MODE_NIGHT_UNDEFINED = 0x00;
561     /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK}
562      * value that corresponds to the
563      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">notnight</a>
564      * resource qualifier. */
565     public static final int UI_MODE_NIGHT_NO = 0x10;
566     /** Constant for {@link #uiMode}: a {@link #UI_MODE_NIGHT_MASK}
567      * value that corresponds to the
568      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#NightQualifier">night</a>
569      * resource qualifier. */
570     public static final int UI_MODE_NIGHT_YES = 0x20;
571 
572     /**
573      * Bit mask of the ui mode.  Currently there are two fields:
574      * <p>The {@link #UI_MODE_TYPE_MASK} bits define the overall ui mode of the
575      * device. They may be one of {@link #UI_MODE_TYPE_UNDEFINED},
576      * {@link #UI_MODE_TYPE_NORMAL}, {@link #UI_MODE_TYPE_DESK},
577      * {@link #UI_MODE_TYPE_CAR}, {@link #UI_MODE_TYPE_TELEVISION},
578      * {@link #UI_MODE_TYPE_APPLIANCE}, or {@link #UI_MODE_TYPE_WATCH}.
579      *
580      * <p>The {@link #UI_MODE_NIGHT_MASK} defines whether the screen
581      * is in a special mode. They may be one of {@link #UI_MODE_NIGHT_UNDEFINED},
582      * {@link #UI_MODE_NIGHT_NO} or {@link #UI_MODE_NIGHT_YES}.
583      */
584     public int uiMode;
585 
586     /**
587      * Default value for {@link #screenWidthDp} indicating that no width
588      * has been specified.
589      */
590     public static final int SCREEN_WIDTH_DP_UNDEFINED = 0;
591 
592     /**
593      * The current width of the available screen space, in dp units,
594      * corresponding to
595      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenWidthQualifier">screen
596      * width</a> resource qualifier.  Set to
597      * {@link #SCREEN_WIDTH_DP_UNDEFINED} if no width is specified.
598      */
599     public int screenWidthDp;
600 
601     /**
602      * Default value for {@link #screenHeightDp} indicating that no width
603      * has been specified.
604      */
605     public static final int SCREEN_HEIGHT_DP_UNDEFINED = 0;
606 
607     /**
608      * The current height of the available screen space, in dp units,
609      * corresponding to
610      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#ScreenHeightQualifier">screen
611      * height</a> resource qualifier.  Set to
612      * {@link #SCREEN_HEIGHT_DP_UNDEFINED} if no height is specified.
613      */
614     public int screenHeightDp;
615 
616     /**
617      * Default value for {@link #smallestScreenWidthDp} indicating that no width
618      * has been specified.
619      */
620     public static final int SMALLEST_SCREEN_WIDTH_DP_UNDEFINED = 0;
621 
622     /**
623      * The smallest screen size an application will see in normal operation,
624      * corresponding to
625      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#SmallestScreenWidthQualifier">smallest
626      * screen width</a> resource qualifier.
627      * This is the smallest value of both screenWidthDp and screenHeightDp
628      * in both portrait and landscape.  Set to
629      * {@link #SMALLEST_SCREEN_WIDTH_DP_UNDEFINED} if no width is specified.
630      */
631     public int smallestScreenWidthDp;
632 
633     /**
634      * Default value for {@link #densityDpi} indicating that no width
635      * has been specified.
636      */
637     public static final int DENSITY_DPI_UNDEFINED = 0;
638 
639     /**
640      * Value for {@link #densityDpi} for resources that scale to any density (vector drawables).
641      * {@hide}
642      */
643     public static final int DENSITY_DPI_ANY = 0xfffe;
644 
645     /**
646      * Value for {@link #densityDpi} for resources that are not meant to be scaled.
647      * {@hide}
648      */
649     public static final int DENSITY_DPI_NONE = 0xffff;
650 
651     /**
652      * The target screen density being rendered to,
653      * corresponding to
654      * <a href="{@docRoot}guide/topics/resources/providing-resources.html#DensityQualifier">density</a>
655      * resource qualifier.  Set to
656      * {@link #DENSITY_DPI_UNDEFINED} if no density is specified.
657      */
658     public int densityDpi;
659 
660     /** @hide Hack to get this information from WM to app running in compat mode. */
661     public int compatScreenWidthDp;
662     /** @hide Hack to get this information from WM to app running in compat mode. */
663     public int compatScreenHeightDp;
664     /** @hide Hack to get this information from WM to app running in compat mode. */
665     public int compatSmallestScreenWidthDp;
666 
667     /**
668      * @hide Internal book-keeping.
669      */
670     public int seq;
671 
672     /** @hide */
673     @IntDef(flag = true,
674             value = {
675                     NATIVE_CONFIG_MCC,
676                     NATIVE_CONFIG_MNC,
677                     NATIVE_CONFIG_LOCALE,
678                     NATIVE_CONFIG_TOUCHSCREEN,
679                     NATIVE_CONFIG_KEYBOARD,
680                     NATIVE_CONFIG_KEYBOARD_HIDDEN,
681                     NATIVE_CONFIG_NAVIGATION,
682                     NATIVE_CONFIG_ORIENTATION,
683                     NATIVE_CONFIG_DENSITY,
684                     NATIVE_CONFIG_SCREEN_SIZE,
685                     NATIVE_CONFIG_VERSION,
686                     NATIVE_CONFIG_SCREEN_LAYOUT,
687                     NATIVE_CONFIG_UI_MODE,
688                     NATIVE_CONFIG_SMALLEST_SCREEN_SIZE,
689                     NATIVE_CONFIG_LAYOUTDIR,
690             })
691     @Retention(RetentionPolicy.SOURCE)
692     public @interface NativeConfig {}
693 
694     /** @hide Native-specific bit mask for MCC config; DO NOT USE UNLESS YOU ARE SURE. */
695     public static final int NATIVE_CONFIG_MCC = 0x0001;
696     /** @hide Native-specific bit mask for MNC config; DO NOT USE UNLESS YOU ARE SURE. */
697     public static final int NATIVE_CONFIG_MNC = 0x0002;
698     /** @hide Native-specific bit mask for LOCALE config; DO NOT USE UNLESS YOU ARE SURE. */
699     public static final int NATIVE_CONFIG_LOCALE = 0x0004;
700     /** @hide Native-specific bit mask for TOUCHSCREEN config; DO NOT USE UNLESS YOU ARE SURE. */
701     public static final int NATIVE_CONFIG_TOUCHSCREEN = 0x0008;
702     /** @hide Native-specific bit mask for KEYBOARD config; DO NOT USE UNLESS YOU ARE SURE. */
703     public static final int NATIVE_CONFIG_KEYBOARD = 0x0010;
704     /** @hide Native-specific bit mask for KEYBOARD_HIDDEN config; DO NOT USE UNLESS YOU
705      * ARE SURE. */
706     public static final int NATIVE_CONFIG_KEYBOARD_HIDDEN = 0x0020;
707     /** @hide Native-specific bit mask for NAVIGATION config; DO NOT USE UNLESS YOU ARE SURE. */
708     public static final int NATIVE_CONFIG_NAVIGATION = 0x0040;
709     /** @hide Native-specific bit mask for ORIENTATION config; DO NOT USE UNLESS YOU ARE SURE. */
710     public static final int NATIVE_CONFIG_ORIENTATION = 0x0080;
711     /** @hide Native-specific bit mask for DENSITY config; DO NOT USE UNLESS YOU ARE SURE. */
712     public static final int NATIVE_CONFIG_DENSITY = 0x0100;
713     /** @hide Native-specific bit mask for SCREEN_SIZE config; DO NOT USE UNLESS YOU ARE SURE. */
714     public static final int NATIVE_CONFIG_SCREEN_SIZE = 0x0200;
715     /** @hide Native-specific bit mask for VERSION config; DO NOT USE UNLESS YOU ARE SURE. */
716     public static final int NATIVE_CONFIG_VERSION = 0x0400;
717     /** @hide Native-specific bit mask for SCREEN_LAYOUT config; DO NOT USE UNLESS YOU ARE SURE. */
718     public static final int NATIVE_CONFIG_SCREEN_LAYOUT = 0x0800;
719     /** @hide Native-specific bit mask for UI_MODE config; DO NOT USE UNLESS YOU ARE SURE. */
720     public static final int NATIVE_CONFIG_UI_MODE = 0x1000;
721     /** @hide Native-specific bit mask for SMALLEST_SCREEN_SIZE config; DO NOT USE UNLESS YOU
722      * ARE SURE. */
723     public static final int NATIVE_CONFIG_SMALLEST_SCREEN_SIZE = 0x2000;
724     /** @hide Native-specific bit mask for LAYOUTDIR config ; DO NOT USE UNLESS YOU ARE SURE.*/
725     public static final int NATIVE_CONFIG_LAYOUTDIR = 0x4000;
726 
727     /**
728      * Construct an invalid Configuration.  You must call {@link #setToDefaults}
729      * for this object to be valid.  {@more}
730      */
Configuration()731     public Configuration() {
732         setToDefaults();
733     }
734 
735     /**
736      * Makes a deep copy suitable for modification.
737      */
Configuration(Configuration o)738     public Configuration(Configuration o) {
739         setTo(o);
740     }
741 
742     /* This brings mLocaleList in sync with locale in case a user of the older API who doesn't know
743      * about setLocales() has changed locale directly. */
fixUpLocaleList()744     private void fixUpLocaleList() {
745         if ((locale == null && !mLocaleList.isEmpty()) ||
746                 (locale != null && !locale.equals(mLocaleList.get(0)))) {
747             mLocaleList = locale == null ? LocaleList.getEmptyLocaleList() : new LocaleList(locale);
748         }
749     }
750 
setTo(Configuration o)751     public void setTo(Configuration o) {
752         fontScale = o.fontScale;
753         mcc = o.mcc;
754         mnc = o.mnc;
755         locale = o.locale == null ? null : (Locale) o.locale.clone();
756         o.fixUpLocaleList();
757         mLocaleList = o.mLocaleList;
758         userSetLocale = o.userSetLocale;
759         touchscreen = o.touchscreen;
760         keyboard = o.keyboard;
761         keyboardHidden = o.keyboardHidden;
762         hardKeyboardHidden = o.hardKeyboardHidden;
763         navigation = o.navigation;
764         navigationHidden = o.navigationHidden;
765         orientation = o.orientation;
766         screenLayout = o.screenLayout;
767         uiMode = o.uiMode;
768         screenWidthDp = o.screenWidthDp;
769         screenHeightDp = o.screenHeightDp;
770         smallestScreenWidthDp = o.smallestScreenWidthDp;
771         densityDpi = o.densityDpi;
772         compatScreenWidthDp = o.compatScreenWidthDp;
773         compatScreenHeightDp = o.compatScreenHeightDp;
774         compatSmallestScreenWidthDp = o.compatSmallestScreenWidthDp;
775         seq = o.seq;
776     }
777 
toString()778     public String toString() {
779         StringBuilder sb = new StringBuilder(128);
780         sb.append("{");
781         sb.append(fontScale);
782         sb.append(" ");
783         if (mcc != 0) {
784             sb.append(mcc);
785             sb.append("mcc");
786         } else {
787             sb.append("?mcc");
788         }
789         if (mnc != 0) {
790             sb.append(mnc);
791             sb.append("mnc");
792         } else {
793             sb.append("?mnc");
794         }
795         fixUpLocaleList();
796         if (!mLocaleList.isEmpty()) {
797             sb.append(" ");
798             sb.append(mLocaleList);
799         } else {
800             sb.append(" ?localeList");
801         }
802         int layoutDir = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK);
803         switch (layoutDir) {
804             case SCREENLAYOUT_LAYOUTDIR_UNDEFINED: sb.append(" ?layoutDir"); break;
805             case SCREENLAYOUT_LAYOUTDIR_LTR: sb.append(" ldltr"); break;
806             case SCREENLAYOUT_LAYOUTDIR_RTL: sb.append(" ldrtl"); break;
807             default: sb.append(" layoutDir=");
808                 sb.append(layoutDir >> SCREENLAYOUT_LAYOUTDIR_SHIFT); break;
809         }
810         if (smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
811             sb.append(" sw"); sb.append(smallestScreenWidthDp); sb.append("dp");
812         } else {
813             sb.append(" ?swdp");
814         }
815         if (screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
816             sb.append(" w"); sb.append(screenWidthDp); sb.append("dp");
817         } else {
818             sb.append(" ?wdp");
819         }
820         if (screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
821             sb.append(" h"); sb.append(screenHeightDp); sb.append("dp");
822         } else {
823             sb.append(" ?hdp");
824         }
825         if (densityDpi != DENSITY_DPI_UNDEFINED) {
826             sb.append(" "); sb.append(densityDpi); sb.append("dpi");
827         } else {
828             sb.append(" ?density");
829         }
830         switch ((screenLayout&SCREENLAYOUT_SIZE_MASK)) {
831             case SCREENLAYOUT_SIZE_UNDEFINED: sb.append(" ?lsize"); break;
832             case SCREENLAYOUT_SIZE_SMALL: sb.append(" smll"); break;
833             case SCREENLAYOUT_SIZE_NORMAL: sb.append(" nrml"); break;
834             case SCREENLAYOUT_SIZE_LARGE: sb.append(" lrg"); break;
835             case SCREENLAYOUT_SIZE_XLARGE: sb.append(" xlrg"); break;
836             default: sb.append(" layoutSize=");
837                     sb.append(screenLayout&SCREENLAYOUT_SIZE_MASK); break;
838         }
839         switch ((screenLayout&SCREENLAYOUT_LONG_MASK)) {
840             case SCREENLAYOUT_LONG_UNDEFINED: sb.append(" ?long"); break;
841             case SCREENLAYOUT_LONG_NO: /* not-long is not interesting to print */ break;
842             case SCREENLAYOUT_LONG_YES: sb.append(" long"); break;
843             default: sb.append(" layoutLong=");
844                     sb.append(screenLayout&SCREENLAYOUT_LONG_MASK); break;
845         }
846         switch (orientation) {
847             case ORIENTATION_UNDEFINED: sb.append(" ?orien"); break;
848             case ORIENTATION_LANDSCAPE: sb.append(" land"); break;
849             case ORIENTATION_PORTRAIT: sb.append(" port"); break;
850             default: sb.append(" orien="); sb.append(orientation); break;
851         }
852         switch ((uiMode&UI_MODE_TYPE_MASK)) {
853             case UI_MODE_TYPE_UNDEFINED: sb.append(" ?uimode"); break;
854             case UI_MODE_TYPE_NORMAL: /* normal is not interesting to print */ break;
855             case UI_MODE_TYPE_DESK: sb.append(" desk"); break;
856             case UI_MODE_TYPE_CAR: sb.append(" car"); break;
857             case UI_MODE_TYPE_TELEVISION: sb.append(" television"); break;
858             case UI_MODE_TYPE_APPLIANCE: sb.append(" appliance"); break;
859             case UI_MODE_TYPE_WATCH: sb.append(" watch"); break;
860             default: sb.append(" uimode="); sb.append(uiMode&UI_MODE_TYPE_MASK); break;
861         }
862         switch ((uiMode&UI_MODE_NIGHT_MASK)) {
863             case UI_MODE_NIGHT_UNDEFINED: sb.append(" ?night"); break;
864             case UI_MODE_NIGHT_NO: /* not-night is not interesting to print */ break;
865             case UI_MODE_NIGHT_YES: sb.append(" night"); break;
866             default: sb.append(" night="); sb.append(uiMode&UI_MODE_NIGHT_MASK); break;
867         }
868         switch (touchscreen) {
869             case TOUCHSCREEN_UNDEFINED: sb.append(" ?touch"); break;
870             case TOUCHSCREEN_NOTOUCH: sb.append(" -touch"); break;
871             case TOUCHSCREEN_STYLUS: sb.append(" stylus"); break;
872             case TOUCHSCREEN_FINGER: sb.append(" finger"); break;
873             default: sb.append(" touch="); sb.append(touchscreen); break;
874         }
875         switch (keyboard) {
876             case KEYBOARD_UNDEFINED: sb.append(" ?keyb"); break;
877             case KEYBOARD_NOKEYS: sb.append(" -keyb"); break;
878             case KEYBOARD_QWERTY: sb.append(" qwerty"); break;
879             case KEYBOARD_12KEY: sb.append(" 12key"); break;
880             default: sb.append(" keys="); sb.append(keyboard); break;
881         }
882         switch (keyboardHidden) {
883             case KEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
884             case KEYBOARDHIDDEN_NO: sb.append("/v"); break;
885             case KEYBOARDHIDDEN_YES: sb.append("/h"); break;
886             case KEYBOARDHIDDEN_SOFT: sb.append("/s"); break;
887             default: sb.append("/"); sb.append(keyboardHidden); break;
888         }
889         switch (hardKeyboardHidden) {
890             case HARDKEYBOARDHIDDEN_UNDEFINED: sb.append("/?"); break;
891             case HARDKEYBOARDHIDDEN_NO: sb.append("/v"); break;
892             case HARDKEYBOARDHIDDEN_YES: sb.append("/h"); break;
893             default: sb.append("/"); sb.append(hardKeyboardHidden); break;
894         }
895         switch (navigation) {
896             case NAVIGATION_UNDEFINED: sb.append(" ?nav"); break;
897             case NAVIGATION_NONAV: sb.append(" -nav"); break;
898             case NAVIGATION_DPAD: sb.append(" dpad"); break;
899             case NAVIGATION_TRACKBALL: sb.append(" tball"); break;
900             case NAVIGATION_WHEEL: sb.append(" wheel"); break;
901             default: sb.append(" nav="); sb.append(navigation); break;
902         }
903         switch (navigationHidden) {
904             case NAVIGATIONHIDDEN_UNDEFINED: sb.append("/?"); break;
905             case NAVIGATIONHIDDEN_NO: sb.append("/v"); break;
906             case NAVIGATIONHIDDEN_YES: sb.append("/h"); break;
907             default: sb.append("/"); sb.append(navigationHidden); break;
908         }
909         if (seq != 0) {
910             sb.append(" s.");
911             sb.append(seq);
912         }
913         sb.append('}');
914         return sb.toString();
915     }
916 
917     /**
918      * Set this object to the system defaults.
919      */
setToDefaults()920     public void setToDefaults() {
921         fontScale = 1;
922         mcc = mnc = 0;
923         mLocaleList = LocaleList.getEmptyLocaleList();
924         locale = null;
925         userSetLocale = false;
926         touchscreen = TOUCHSCREEN_UNDEFINED;
927         keyboard = KEYBOARD_UNDEFINED;
928         keyboardHidden = KEYBOARDHIDDEN_UNDEFINED;
929         hardKeyboardHidden = HARDKEYBOARDHIDDEN_UNDEFINED;
930         navigation = NAVIGATION_UNDEFINED;
931         navigationHidden = NAVIGATIONHIDDEN_UNDEFINED;
932         orientation = ORIENTATION_UNDEFINED;
933         screenLayout = SCREENLAYOUT_UNDEFINED;
934         uiMode = UI_MODE_TYPE_UNDEFINED;
935         screenWidthDp = compatScreenWidthDp = SCREEN_WIDTH_DP_UNDEFINED;
936         screenHeightDp = compatScreenHeightDp = SCREEN_HEIGHT_DP_UNDEFINED;
937         smallestScreenWidthDp = compatSmallestScreenWidthDp = SMALLEST_SCREEN_WIDTH_DP_UNDEFINED;
938         densityDpi = DENSITY_DPI_UNDEFINED;
939         seq = 0;
940     }
941 
942     /** {@hide} */
makeDefault()943     @Deprecated public void makeDefault() {
944         setToDefaults();
945     }
946 
947     /**
948      * Copies the fields from delta into this Configuration object, keeping
949      * track of which ones have changed. Any undefined fields in {@code delta}
950      * are ignored and not copied in to the current Configuration.
951      *
952      * @return a bit mask of the changed fields, as per {@link #diff}
953      */
updateFrom(@onNull Configuration delta)954     public @Config int updateFrom(@NonNull Configuration delta) {
955         int changed = 0;
956         if (delta.fontScale > 0 && fontScale != delta.fontScale) {
957             changed |= ActivityInfo.CONFIG_FONT_SCALE;
958             fontScale = delta.fontScale;
959         }
960         if (delta.mcc != 0 && mcc != delta.mcc) {
961             changed |= ActivityInfo.CONFIG_MCC;
962             mcc = delta.mcc;
963         }
964         if (delta.mnc != 0 && mnc != delta.mnc) {
965             changed |= ActivityInfo.CONFIG_MNC;
966             mnc = delta.mnc;
967         }
968         fixUpLocaleList();
969         delta.fixUpLocaleList();
970         if (!delta.mLocaleList.isEmpty() && !mLocaleList.equals(delta.mLocaleList)) {
971             changed |= ActivityInfo.CONFIG_LOCALE;
972             mLocaleList = delta.mLocaleList;
973             // delta.locale can't be null, since delta.mLocaleList is not empty.
974             if (!delta.locale.equals(locale)) {
975                 locale = (Locale) delta.locale.clone();
976                 // If locale has changed, then layout direction is also changed ...
977                 changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
978                 // ... and we need to update the layout direction (represented by the first
979                 // 2 most significant bits in screenLayout).
980                 setLayoutDirection(locale);
981             }
982         }
983         final int deltaScreenLayoutDir = delta.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK;
984         if (deltaScreenLayoutDir != SCREENLAYOUT_LAYOUTDIR_UNDEFINED &&
985                 deltaScreenLayoutDir != (screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) {
986             screenLayout = (screenLayout & ~SCREENLAYOUT_LAYOUTDIR_MASK) | deltaScreenLayoutDir;
987             changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
988         }
989         if (delta.userSetLocale && (!userSetLocale || ((changed & ActivityInfo.CONFIG_LOCALE) != 0)))
990         {
991             changed |= ActivityInfo.CONFIG_LOCALE;
992             userSetLocale = true;
993         }
994         if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
995                 && touchscreen != delta.touchscreen) {
996             changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
997             touchscreen = delta.touchscreen;
998         }
999         if (delta.keyboard != KEYBOARD_UNDEFINED
1000                 && keyboard != delta.keyboard) {
1001             changed |= ActivityInfo.CONFIG_KEYBOARD;
1002             keyboard = delta.keyboard;
1003         }
1004         if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
1005                 && keyboardHidden != delta.keyboardHidden) {
1006             changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1007             keyboardHidden = delta.keyboardHidden;
1008         }
1009         if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
1010                 && hardKeyboardHidden != delta.hardKeyboardHidden) {
1011             changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1012             hardKeyboardHidden = delta.hardKeyboardHidden;
1013         }
1014         if (delta.navigation != NAVIGATION_UNDEFINED
1015                 && navigation != delta.navigation) {
1016             changed |= ActivityInfo.CONFIG_NAVIGATION;
1017             navigation = delta.navigation;
1018         }
1019         if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
1020                 && navigationHidden != delta.navigationHidden) {
1021             changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1022             navigationHidden = delta.navigationHidden;
1023         }
1024         if (delta.orientation != ORIENTATION_UNDEFINED
1025                 && orientation != delta.orientation) {
1026             changed |= ActivityInfo.CONFIG_ORIENTATION;
1027             orientation = delta.orientation;
1028         }
1029         if (getScreenLayoutNoDirection(delta.screenLayout) !=
1030                     (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED)
1031                 && (getScreenLayoutNoDirection(screenLayout) !=
1032                     getScreenLayoutNoDirection(delta.screenLayout))) {
1033             changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT;
1034             // We need to preserve the previous layout dir bits if they were defined
1035             if ((delta.screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == 0) {
1036                 screenLayout = (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK)|delta.screenLayout;
1037             } else {
1038                 screenLayout = delta.screenLayout;
1039             }
1040         }
1041         if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED)
1042                 && uiMode != delta.uiMode) {
1043             changed |= ActivityInfo.CONFIG_UI_MODE;
1044             if ((delta.uiMode&UI_MODE_TYPE_MASK) != UI_MODE_TYPE_UNDEFINED) {
1045                 uiMode = (uiMode&~UI_MODE_TYPE_MASK)
1046                         | (delta.uiMode&UI_MODE_TYPE_MASK);
1047             }
1048             if ((delta.uiMode&UI_MODE_NIGHT_MASK) != UI_MODE_NIGHT_UNDEFINED) {
1049                 uiMode = (uiMode&~UI_MODE_NIGHT_MASK)
1050                         | (delta.uiMode&UI_MODE_NIGHT_MASK);
1051             }
1052         }
1053         if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED
1054                 && screenWidthDp != delta.screenWidthDp) {
1055             changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
1056             screenWidthDp = delta.screenWidthDp;
1057         }
1058         if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED
1059                 && screenHeightDp != delta.screenHeightDp) {
1060             changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
1061             screenHeightDp = delta.screenHeightDp;
1062         }
1063         if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED
1064                 && smallestScreenWidthDp != delta.smallestScreenWidthDp) {
1065             changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE;
1066             smallestScreenWidthDp = delta.smallestScreenWidthDp;
1067         }
1068         if (delta.densityDpi != DENSITY_DPI_UNDEFINED &&
1069                 densityDpi != delta.densityDpi) {
1070             changed |= ActivityInfo.CONFIG_DENSITY;
1071             densityDpi = delta.densityDpi;
1072         }
1073         if (delta.compatScreenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
1074             compatScreenWidthDp = delta.compatScreenWidthDp;
1075         }
1076         if (delta.compatScreenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
1077             compatScreenHeightDp = delta.compatScreenHeightDp;
1078         }
1079         if (delta.compatSmallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
1080             compatSmallestScreenWidthDp = delta.compatSmallestScreenWidthDp;
1081         }
1082         if (delta.seq != 0) {
1083             seq = delta.seq;
1084         }
1085 
1086         return changed;
1087     }
1088 
1089     /**
1090      * Return a bit mask of the differences between this Configuration
1091      * object and the given one.  Does not change the values of either.  Any
1092      * undefined fields in <var>delta</var> are ignored.
1093      * @return Returns a bit mask indicating which configuration
1094      * values has changed, containing any combination of
1095      * {@link android.content.pm.ActivityInfo#CONFIG_FONT_SCALE
1096      * PackageManager.ActivityInfo.CONFIG_FONT_SCALE},
1097      * {@link android.content.pm.ActivityInfo#CONFIG_MCC
1098      * PackageManager.ActivityInfo.CONFIG_MCC},
1099      * {@link android.content.pm.ActivityInfo#CONFIG_MNC
1100      * PackageManager.ActivityInfo.CONFIG_MNC},
1101      * {@link android.content.pm.ActivityInfo#CONFIG_LOCALE
1102      * PackageManager.ActivityInfo.CONFIG_LOCALE},
1103      * {@link android.content.pm.ActivityInfo#CONFIG_TOUCHSCREEN
1104      * PackageManager.ActivityInfo.CONFIG_TOUCHSCREEN},
1105      * {@link android.content.pm.ActivityInfo#CONFIG_KEYBOARD
1106      * PackageManager.ActivityInfo.CONFIG_KEYBOARD},
1107      * {@link android.content.pm.ActivityInfo#CONFIG_NAVIGATION
1108      * PackageManager.ActivityInfo.CONFIG_NAVIGATION},
1109      * {@link android.content.pm.ActivityInfo#CONFIG_ORIENTATION
1110      * PackageManager.ActivityInfo.CONFIG_ORIENTATION},
1111      * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_LAYOUT
1112      * PackageManager.ActivityInfo.CONFIG_SCREEN_LAYOUT}, or
1113      * {@link android.content.pm.ActivityInfo#CONFIG_SCREEN_SIZE
1114      * PackageManager.ActivityInfo.CONFIG_SCREEN_SIZE}, or
1115      * {@link android.content.pm.ActivityInfo#CONFIG_SMALLEST_SCREEN_SIZE
1116      * PackageManager.ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE}.
1117      * {@link android.content.pm.ActivityInfo#CONFIG_LAYOUT_DIRECTION
1118      * PackageManager.ActivityInfo.CONFIG_LAYOUT_DIRECTION}.
1119      */
diff(Configuration delta)1120     public int diff(Configuration delta) {
1121         int changed = 0;
1122         if (delta.fontScale > 0 && fontScale != delta.fontScale) {
1123             changed |= ActivityInfo.CONFIG_FONT_SCALE;
1124         }
1125         if (delta.mcc != 0 && mcc != delta.mcc) {
1126             changed |= ActivityInfo.CONFIG_MCC;
1127         }
1128         if (delta.mnc != 0 && mnc != delta.mnc) {
1129             changed |= ActivityInfo.CONFIG_MNC;
1130         }
1131         fixUpLocaleList();
1132         delta.fixUpLocaleList();
1133         if (!delta.mLocaleList.isEmpty() && !mLocaleList.equals(delta.mLocaleList)) {
1134             changed |= ActivityInfo.CONFIG_LOCALE;
1135             changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
1136         }
1137         final int deltaScreenLayoutDir = delta.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK;
1138         if (deltaScreenLayoutDir != SCREENLAYOUT_LAYOUTDIR_UNDEFINED &&
1139                 deltaScreenLayoutDir != (screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) {
1140             changed |= ActivityInfo.CONFIG_LAYOUT_DIRECTION;
1141         }
1142         if (delta.touchscreen != TOUCHSCREEN_UNDEFINED
1143                 && touchscreen != delta.touchscreen) {
1144             changed |= ActivityInfo.CONFIG_TOUCHSCREEN;
1145         }
1146         if (delta.keyboard != KEYBOARD_UNDEFINED
1147                 && keyboard != delta.keyboard) {
1148             changed |= ActivityInfo.CONFIG_KEYBOARD;
1149         }
1150         if (delta.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED
1151                 && keyboardHidden != delta.keyboardHidden) {
1152             changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1153         }
1154         if (delta.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED
1155                 && hardKeyboardHidden != delta.hardKeyboardHidden) {
1156             changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1157         }
1158         if (delta.navigation != NAVIGATION_UNDEFINED
1159                 && navigation != delta.navigation) {
1160             changed |= ActivityInfo.CONFIG_NAVIGATION;
1161         }
1162         if (delta.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED
1163                 && navigationHidden != delta.navigationHidden) {
1164             changed |= ActivityInfo.CONFIG_KEYBOARD_HIDDEN;
1165         }
1166         if (delta.orientation != ORIENTATION_UNDEFINED
1167                 && orientation != delta.orientation) {
1168             changed |= ActivityInfo.CONFIG_ORIENTATION;
1169         }
1170         if (getScreenLayoutNoDirection(delta.screenLayout) !=
1171                     (SCREENLAYOUT_SIZE_UNDEFINED | SCREENLAYOUT_LONG_UNDEFINED)
1172                 && getScreenLayoutNoDirection(screenLayout) !=
1173                     getScreenLayoutNoDirection(delta.screenLayout)) {
1174             changed |= ActivityInfo.CONFIG_SCREEN_LAYOUT;
1175         }
1176         if (delta.uiMode != (UI_MODE_TYPE_UNDEFINED|UI_MODE_NIGHT_UNDEFINED)
1177                 && uiMode != delta.uiMode) {
1178             changed |= ActivityInfo.CONFIG_UI_MODE;
1179         }
1180         if (delta.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED
1181                 && screenWidthDp != delta.screenWidthDp) {
1182             changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
1183         }
1184         if (delta.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED
1185                 && screenHeightDp != delta.screenHeightDp) {
1186             changed |= ActivityInfo.CONFIG_SCREEN_SIZE;
1187         }
1188         if (delta.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED
1189                 && smallestScreenWidthDp != delta.smallestScreenWidthDp) {
1190             changed |= ActivityInfo.CONFIG_SMALLEST_SCREEN_SIZE;
1191         }
1192         if (delta.densityDpi != DENSITY_DPI_UNDEFINED
1193                 && densityDpi != delta.densityDpi) {
1194             changed |= ActivityInfo.CONFIG_DENSITY;
1195         }
1196 
1197         return changed;
1198     }
1199 
1200     /**
1201      * Determines if a new resource needs to be loaded from the bit set of
1202      * configuration changes returned by {@link #updateFrom(Configuration)}.
1203      *
1204      * @param configChanges the mask of changes configurations as returned by
1205      *                      {@link #updateFrom(Configuration)}
1206      * @param interestingChanges the configuration changes that the resource
1207      *                           can handle as given in
1208      *                           {@link android.util.TypedValue#changingConfigurations}
1209      * @return {@code true} if the resource needs to be loaded, {@code false}
1210      *         otherwise
1211      */
needNewResources(@onfig int configChanges, @Config int interestingChanges)1212     public static boolean needNewResources(@Config int configChanges,
1213             @Config int interestingChanges) {
1214         return (configChanges & (interestingChanges|ActivityInfo.CONFIG_FONT_SCALE)) != 0;
1215     }
1216 
1217     /**
1218      * @hide Return true if the sequence of 'other' is better than this.  Assumes
1219      * that 'this' is your current sequence and 'other' is a new one you have
1220      * received some how and want to compare with what you have.
1221      */
isOtherSeqNewer(Configuration other)1222     public boolean isOtherSeqNewer(Configuration other) {
1223         if (other == null) {
1224             // Sanity check.
1225             return false;
1226         }
1227         if (other.seq == 0) {
1228             // If the other sequence is not specified, then we must assume
1229             // it is newer since we don't know any better.
1230             return true;
1231         }
1232         if (seq == 0) {
1233             // If this sequence is not specified, then we also consider the
1234             // other is better.  Yes we have a preference for other.  Sue us.
1235             return true;
1236         }
1237         int diff = other.seq - seq;
1238         if (diff > 0x10000) {
1239             // If there has been a sufficiently large jump, assume the
1240             // sequence has wrapped around.
1241             return false;
1242         }
1243         return diff > 0;
1244     }
1245 
1246     /**
1247      * Parcelable methods
1248      */
describeContents()1249     public int describeContents() {
1250         return 0;
1251     }
1252 
writeToParcel(Parcel dest, int flags)1253     public void writeToParcel(Parcel dest, int flags) {
1254         dest.writeFloat(fontScale);
1255         dest.writeInt(mcc);
1256         dest.writeInt(mnc);
1257 
1258         fixUpLocaleList();
1259         final int localeListSize = mLocaleList.size();
1260         dest.writeInt(localeListSize);
1261         for (int i = 0; i < localeListSize; ++i) {
1262             final Locale l = mLocaleList.get(i);
1263             dest.writeString(l.toLanguageTag());
1264         }
1265 
1266         if(userSetLocale) {
1267             dest.writeInt(1);
1268         } else {
1269             dest.writeInt(0);
1270         }
1271         dest.writeInt(touchscreen);
1272         dest.writeInt(keyboard);
1273         dest.writeInt(keyboardHidden);
1274         dest.writeInt(hardKeyboardHidden);
1275         dest.writeInt(navigation);
1276         dest.writeInt(navigationHidden);
1277         dest.writeInt(orientation);
1278         dest.writeInt(screenLayout);
1279         dest.writeInt(uiMode);
1280         dest.writeInt(screenWidthDp);
1281         dest.writeInt(screenHeightDp);
1282         dest.writeInt(smallestScreenWidthDp);
1283         dest.writeInt(densityDpi);
1284         dest.writeInt(compatScreenWidthDp);
1285         dest.writeInt(compatScreenHeightDp);
1286         dest.writeInt(compatSmallestScreenWidthDp);
1287         dest.writeInt(seq);
1288     }
1289 
readFromParcel(Parcel source)1290     public void readFromParcel(Parcel source) {
1291         fontScale = source.readFloat();
1292         mcc = source.readInt();
1293         mnc = source.readInt();
1294 
1295         final int localeListSize = source.readInt();
1296         final Locale[] localeArray = new Locale[localeListSize];
1297         for (int i = 0; i < localeListSize; ++i) {
1298             localeArray[i] = Locale.forLanguageTag(source.readString());
1299         }
1300         mLocaleList = new LocaleList(localeArray);
1301         locale = mLocaleList.get(0);
1302 
1303         userSetLocale = (source.readInt()==1);
1304         touchscreen = source.readInt();
1305         keyboard = source.readInt();
1306         keyboardHidden = source.readInt();
1307         hardKeyboardHidden = source.readInt();
1308         navigation = source.readInt();
1309         navigationHidden = source.readInt();
1310         orientation = source.readInt();
1311         screenLayout = source.readInt();
1312         uiMode = source.readInt();
1313         screenWidthDp = source.readInt();
1314         screenHeightDp = source.readInt();
1315         smallestScreenWidthDp = source.readInt();
1316         densityDpi = source.readInt();
1317         compatScreenWidthDp = source.readInt();
1318         compatScreenHeightDp = source.readInt();
1319         compatSmallestScreenWidthDp = source.readInt();
1320         seq = source.readInt();
1321     }
1322 
1323     public static final Parcelable.Creator<Configuration> CREATOR
1324             = new Parcelable.Creator<Configuration>() {
1325         public Configuration createFromParcel(Parcel source) {
1326             return new Configuration(source);
1327         }
1328 
1329         public Configuration[] newArray(int size) {
1330             return new Configuration[size];
1331         }
1332     };
1333 
1334     /**
1335      * Construct this Configuration object, reading from the Parcel.
1336      */
Configuration(Parcel source)1337     private Configuration(Parcel source) {
1338         readFromParcel(source);
1339     }
1340 
compareTo(Configuration that)1341     public int compareTo(Configuration that) {
1342         int n;
1343         float a = this.fontScale;
1344         float b = that.fontScale;
1345         if (a < b) return -1;
1346         if (a > b) return 1;
1347         n = this.mcc - that.mcc;
1348         if (n != 0) return n;
1349         n = this.mnc - that.mnc;
1350         if (n != 0) return n;
1351 
1352         fixUpLocaleList();
1353         that.fixUpLocaleList();
1354         // for backward compatibility, we consider an empty locale list to be greater
1355         // than any non-empty locale list.
1356         if (this.mLocaleList.isEmpty()) {
1357             if (!that.mLocaleList.isEmpty()) return 1;
1358         } else if (that.mLocaleList.isEmpty()) {
1359             return -1;
1360         } else {
1361             final int minSize = Math.min(this.mLocaleList.size(), that.mLocaleList.size());
1362             for (int i = 0; i < minSize; ++i) {
1363                 final Locale thisLocale = this.mLocaleList.get(i);
1364                 final Locale thatLocale = that.mLocaleList.get(i);
1365                 n = thisLocale.getLanguage().compareTo(thatLocale.getLanguage());
1366                 if (n != 0) return n;
1367                 n = thisLocale.getCountry().compareTo(thatLocale.getCountry());
1368                 if (n != 0) return n;
1369                 n = thisLocale.getVariant().compareTo(thatLocale.getVariant());
1370                 if (n != 0) return n;
1371                 n = thisLocale.toLanguageTag().compareTo(thatLocale.toLanguageTag());
1372                 if (n != 0) return n;
1373             }
1374             n = this.mLocaleList.size() - that.mLocaleList.size();
1375             if (n != 0) return n;
1376         }
1377 
1378         n = this.touchscreen - that.touchscreen;
1379         if (n != 0) return n;
1380         n = this.keyboard - that.keyboard;
1381         if (n != 0) return n;
1382         n = this.keyboardHidden - that.keyboardHidden;
1383         if (n != 0) return n;
1384         n = this.hardKeyboardHidden - that.hardKeyboardHidden;
1385         if (n != 0) return n;
1386         n = this.navigation - that.navigation;
1387         if (n != 0) return n;
1388         n = this.navigationHidden - that.navigationHidden;
1389         if (n != 0) return n;
1390         n = this.orientation - that.orientation;
1391         if (n != 0) return n;
1392         n = this.screenLayout - that.screenLayout;
1393         if (n != 0) return n;
1394         n = this.uiMode - that.uiMode;
1395         if (n != 0) return n;
1396         n = this.screenWidthDp - that.screenWidthDp;
1397         if (n != 0) return n;
1398         n = this.screenHeightDp - that.screenHeightDp;
1399         if (n != 0) return n;
1400         n = this.smallestScreenWidthDp - that.smallestScreenWidthDp;
1401         if (n != 0) return n;
1402         n = this.densityDpi - that.densityDpi;
1403         //if (n != 0) return n;
1404         return n;
1405     }
1406 
equals(Configuration that)1407     public boolean equals(Configuration that) {
1408         if (that == null) return false;
1409         if (that == this) return true;
1410         return this.compareTo(that) == 0;
1411     }
1412 
equals(Object that)1413     public boolean equals(Object that) {
1414         try {
1415             return equals((Configuration)that);
1416         } catch (ClassCastException e) {
1417         }
1418         return false;
1419     }
1420 
hashCode()1421     public int hashCode() {
1422         int result = 17;
1423         result = 31 * result + Float.floatToIntBits(fontScale);
1424         result = 31 * result + mcc;
1425         result = 31 * result + mnc;
1426         result = 31 * result + mLocaleList.hashCode();
1427         result = 31 * result + touchscreen;
1428         result = 31 * result + keyboard;
1429         result = 31 * result + keyboardHidden;
1430         result = 31 * result + hardKeyboardHidden;
1431         result = 31 * result + navigation;
1432         result = 31 * result + navigationHidden;
1433         result = 31 * result + orientation;
1434         result = 31 * result + screenLayout;
1435         result = 31 * result + uiMode;
1436         result = 31 * result + screenWidthDp;
1437         result = 31 * result + screenHeightDp;
1438         result = 31 * result + smallestScreenWidthDp;
1439         result = 31 * result + densityDpi;
1440         return result;
1441     }
1442 
1443     /**
1444      * Get the locale list. This is the preferred way for getting the locales (instead of using
1445      * the direct accessor to {@link #locale}, which would only provide the primary locale).
1446      *
1447      * @return The locale list.
1448      */
getLocales()1449     public @NonNull LocaleList getLocales() {
1450         fixUpLocaleList();
1451         return mLocaleList;
1452     }
1453 
1454     /**
1455      * Set the locale list. This is the preferred way for setting up the locales (instead of using
1456      * the direct accessor or {@link #setLocale(Locale)}). This will also set the layout direction
1457      * according to the first locale in the list.
1458      *
1459      * Note that the layout direction will always come from the first locale in the locale list,
1460      * even if the locale is not supported by the resources (the resources may only support
1461      * another locale further down the list which has a different direction).
1462      *
1463      * @param locales The locale list. If null, an empty LocaleList will be assigned.
1464      */
setLocales(@ullable LocaleList locales)1465     public void setLocales(@Nullable LocaleList locales) {
1466         mLocaleList = locales == null ? LocaleList.getEmptyLocaleList() : locales;
1467         locale = mLocaleList.get(0);
1468         setLayoutDirection(locale);
1469     }
1470 
1471     /**
1472      * Set the locale list to a list of just one locale. This will also set the layout direction
1473      * according to the locale.
1474      *
1475      * Note that after this is run, calling <code>.equals()</code> on the input locale and the
1476      * {@link #locale} attribute would return <code>true</code> if they are not null, but there is
1477      * no guarantee that they would be the same object.
1478      *
1479      * See also the note about layout direction in {@link #setLocales(LocaleList)}.
1480      *
1481      * @param loc The locale. Can be null.
1482      */
setLocale(@ullable Locale loc)1483     public void setLocale(@Nullable Locale loc) {
1484         setLocales(loc == null ? LocaleList.getEmptyLocaleList() : new LocaleList(loc));
1485     }
1486 
1487     /**
1488      * @hide
1489      *
1490      * Clears the locale without changing layout direction.
1491      */
clearLocales()1492     public void clearLocales() {
1493         mLocaleList = LocaleList.getEmptyLocaleList();
1494         locale = null;
1495     }
1496 
1497     /**
1498      * Return the layout direction. Will be either {@link View#LAYOUT_DIRECTION_LTR} or
1499      * {@link View#LAYOUT_DIRECTION_RTL}.
1500      *
1501      * @return Returns {@link View#LAYOUT_DIRECTION_RTL} if the configuration
1502      * is {@link #SCREENLAYOUT_LAYOUTDIR_RTL}, otherwise {@link View#LAYOUT_DIRECTION_LTR}.
1503      */
getLayoutDirection()1504     public int getLayoutDirection() {
1505         return (screenLayout&SCREENLAYOUT_LAYOUTDIR_MASK) == SCREENLAYOUT_LAYOUTDIR_RTL
1506                 ? View.LAYOUT_DIRECTION_RTL : View.LAYOUT_DIRECTION_LTR;
1507     }
1508 
1509     /**
1510      * Set the layout direction from a Locale.
1511      *
1512      * @param loc The Locale. If null will set the layout direction to
1513      * {@link View#LAYOUT_DIRECTION_LTR}. If not null will set it to the layout direction
1514      * corresponding to the Locale.
1515      *
1516      * @see View#LAYOUT_DIRECTION_LTR
1517      * @see View#LAYOUT_DIRECTION_RTL
1518      */
setLayoutDirection(Locale loc)1519     public void setLayoutDirection(Locale loc) {
1520         // There is a "1" difference between the configuration values for
1521         // layout direction and View constants for layout direction, just add "1".
1522         final int layoutDirection = 1 + TextUtils.getLayoutDirectionFromLocale(loc);
1523         screenLayout = (screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK)|
1524                 (layoutDirection << SCREENLAYOUT_LAYOUTDIR_SHIFT);
1525     }
1526 
getScreenLayoutNoDirection(int screenLayout)1527     private static int getScreenLayoutNoDirection(int screenLayout) {
1528         return screenLayout&~SCREENLAYOUT_LAYOUTDIR_MASK;
1529     }
1530 
1531     /**
1532      * Return whether the screen has a round shape. Apps may choose to change styling based
1533      * on this property, such as the alignment or layout of text or informational icons.
1534      *
1535      * @return true if the screen is rounded, false otherwise
1536      */
isScreenRound()1537     public boolean isScreenRound() {
1538         return (screenLayout & SCREENLAYOUT_ROUND_MASK) == SCREENLAYOUT_ROUND_YES;
1539     }
1540 
1541     /**
1542      *
1543      * @hide
1544      */
localesToResourceQualifier(LocaleList locs)1545     public static String localesToResourceQualifier(LocaleList locs) {
1546         StringBuilder sb = new StringBuilder();
1547         for (int i = 0; i < locs.size(); i++) {
1548             Locale loc = locs.get(i);
1549             boolean l = (loc.getLanguage().length() != 0);
1550             boolean c = (loc.getCountry().length() != 0);
1551             boolean s = (loc.getScript().length() != 0);
1552             boolean v = (loc.getVariant().length() != 0);
1553             // TODO: take script and extensions into account
1554             if (l) {
1555                 if (sb.length() != 0) {
1556                     sb.append(",");
1557                 }
1558                 sb.append(loc.getLanguage());
1559                 if (c) {
1560                     sb.append("-r").append(loc.getCountry());
1561                     if (s) {
1562                         sb.append("-s").append(loc.getScript());
1563                         if (v) {
1564                             sb.append("-v").append(loc.getVariant());
1565                         }
1566                     }
1567                 }
1568             }
1569         }
1570         return sb.toString();
1571     }
1572 
1573 
1574     /**
1575      * Returns a string representation of the configuration that can be parsed
1576      * by build tools (like AAPT).
1577      *
1578      * @hide
1579      */
resourceQualifierString(Configuration config)1580     public static String resourceQualifierString(Configuration config) {
1581         ArrayList<String> parts = new ArrayList<String>();
1582 
1583         if (config.mcc != 0) {
1584             parts.add("mcc" + config.mcc);
1585             if (config.mnc != 0) {
1586                 parts.add("mnc" + config.mnc);
1587             }
1588         }
1589 
1590         if (!config.mLocaleList.isEmpty()) {
1591             final String resourceQualifier = localesToResourceQualifier(config.mLocaleList);
1592             if (!resourceQualifier.isEmpty()) {
1593                 parts.add(resourceQualifier);
1594             }
1595         }
1596 
1597         switch (config.screenLayout & Configuration.SCREENLAYOUT_LAYOUTDIR_MASK) {
1598             case Configuration.SCREENLAYOUT_LAYOUTDIR_LTR:
1599                 parts.add("ldltr");
1600                 break;
1601             case Configuration.SCREENLAYOUT_LAYOUTDIR_RTL:
1602                 parts.add("ldrtl");
1603                 break;
1604             default:
1605                 break;
1606         }
1607 
1608         if (config.smallestScreenWidthDp != 0) {
1609             parts.add("sw" + config.smallestScreenWidthDp + "dp");
1610         }
1611 
1612         if (config.screenWidthDp != 0) {
1613             parts.add("w" + config.screenWidthDp + "dp");
1614         }
1615 
1616         if (config.screenHeightDp != 0) {
1617             parts.add("h" + config.screenHeightDp + "dp");
1618         }
1619 
1620         switch (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) {
1621             case Configuration.SCREENLAYOUT_SIZE_SMALL:
1622                 parts.add("small");
1623                 break;
1624             case Configuration.SCREENLAYOUT_SIZE_NORMAL:
1625                 parts.add("normal");
1626                 break;
1627             case Configuration.SCREENLAYOUT_SIZE_LARGE:
1628                 parts.add("large");
1629                 break;
1630             case Configuration.SCREENLAYOUT_SIZE_XLARGE:
1631                 parts.add("xlarge");
1632                 break;
1633             default:
1634                 break;
1635         }
1636 
1637         switch (config.screenLayout & Configuration.SCREENLAYOUT_LONG_MASK) {
1638             case Configuration.SCREENLAYOUT_LONG_YES:
1639                 parts.add("long");
1640                 break;
1641             case Configuration.SCREENLAYOUT_LONG_NO:
1642                 parts.add("notlong");
1643                 break;
1644             default:
1645                 break;
1646         }
1647 
1648         switch (config.screenLayout & Configuration.SCREENLAYOUT_ROUND_MASK) {
1649             case Configuration.SCREENLAYOUT_ROUND_YES:
1650                 parts.add("round");
1651                 break;
1652             case Configuration.SCREENLAYOUT_ROUND_NO:
1653                 parts.add("notround");
1654                 break;
1655             default:
1656                 break;
1657         }
1658 
1659         switch (config.orientation) {
1660             case Configuration.ORIENTATION_LANDSCAPE:
1661                 parts.add("land");
1662                 break;
1663             case Configuration.ORIENTATION_PORTRAIT:
1664                 parts.add("port");
1665                 break;
1666             default:
1667                 break;
1668         }
1669 
1670         switch (config.uiMode & Configuration.UI_MODE_TYPE_MASK) {
1671             case Configuration.UI_MODE_TYPE_APPLIANCE:
1672                 parts.add("appliance");
1673                 break;
1674             case Configuration.UI_MODE_TYPE_DESK:
1675                 parts.add("desk");
1676                 break;
1677             case Configuration.UI_MODE_TYPE_TELEVISION:
1678                 parts.add("television");
1679                 break;
1680             case Configuration.UI_MODE_TYPE_CAR:
1681                 parts.add("car");
1682                 break;
1683             case Configuration.UI_MODE_TYPE_WATCH:
1684                 parts.add("watch");
1685                 break;
1686             default:
1687                 break;
1688         }
1689 
1690         switch (config.uiMode & Configuration.UI_MODE_NIGHT_MASK) {
1691             case Configuration.UI_MODE_NIGHT_YES:
1692                 parts.add("night");
1693                 break;
1694             case Configuration.UI_MODE_NIGHT_NO:
1695                 parts.add("notnight");
1696                 break;
1697             default:
1698                 break;
1699         }
1700 
1701         switch (config.densityDpi) {
1702             case DENSITY_DPI_UNDEFINED:
1703                 break;
1704             case 120:
1705                 parts.add("ldpi");
1706                 break;
1707             case 160:
1708                 parts.add("mdpi");
1709                 break;
1710             case 213:
1711                 parts.add("tvdpi");
1712                 break;
1713             case 240:
1714                 parts.add("hdpi");
1715                 break;
1716             case 320:
1717                 parts.add("xhdpi");
1718                 break;
1719             case 480:
1720                 parts.add("xxhdpi");
1721                 break;
1722             case 640:
1723                 parts.add("xxxhdpi");
1724                 break;
1725             case DENSITY_DPI_ANY:
1726                 parts.add("anydpi");
1727                 break;
1728             case DENSITY_DPI_NONE:
1729                 parts.add("nodpi");
1730             default:
1731                 parts.add(config.densityDpi + "dpi");
1732                 break;
1733         }
1734 
1735         switch (config.touchscreen) {
1736             case Configuration.TOUCHSCREEN_NOTOUCH:
1737                 parts.add("notouch");
1738                 break;
1739             case Configuration.TOUCHSCREEN_FINGER:
1740                 parts.add("finger");
1741                 break;
1742             default:
1743                 break;
1744         }
1745 
1746         switch (config.keyboardHidden) {
1747             case Configuration.KEYBOARDHIDDEN_NO:
1748                 parts.add("keysexposed");
1749                 break;
1750             case Configuration.KEYBOARDHIDDEN_YES:
1751                 parts.add("keyshidden");
1752                 break;
1753             case Configuration.KEYBOARDHIDDEN_SOFT:
1754                 parts.add("keyssoft");
1755                 break;
1756             default:
1757                 break;
1758         }
1759 
1760         switch (config.keyboard) {
1761             case Configuration.KEYBOARD_NOKEYS:
1762                 parts.add("nokeys");
1763                 break;
1764             case Configuration.KEYBOARD_QWERTY:
1765                 parts.add("qwerty");
1766                 break;
1767             case Configuration.KEYBOARD_12KEY:
1768                 parts.add("12key");
1769                 break;
1770             default:
1771                 break;
1772         }
1773 
1774         switch (config.navigationHidden) {
1775             case Configuration.NAVIGATIONHIDDEN_NO:
1776                 parts.add("navexposed");
1777                 break;
1778             case Configuration.NAVIGATIONHIDDEN_YES:
1779                 parts.add("navhidden");
1780                 break;
1781             default:
1782                 break;
1783         }
1784 
1785         switch (config.navigation) {
1786             case Configuration.NAVIGATION_NONAV:
1787                 parts.add("nonav");
1788                 break;
1789             case Configuration.NAVIGATION_DPAD:
1790                 parts.add("dpad");
1791                 break;
1792             case Configuration.NAVIGATION_TRACKBALL:
1793                 parts.add("trackball");
1794                 break;
1795             case Configuration.NAVIGATION_WHEEL:
1796                 parts.add("wheel");
1797                 break;
1798             default:
1799                 break;
1800         }
1801 
1802         parts.add("v" + Build.VERSION.RESOURCES_SDK_INT);
1803         return TextUtils.join("-", parts);
1804     }
1805 
1806     /**
1807      * Generate a delta Configuration between <code>base</code> and <code>change</code>. The
1808      * resulting delta can be used with {@link #updateFrom(Configuration)}.
1809      * <p />
1810      * Caveat: If the any of the Configuration's members becomes undefined, then
1811      * {@link #updateFrom(Configuration)} will treat it as a no-op and not update that member.
1812      *
1813      * This is fine for device configurations as no member is ever undefined.
1814      * {@hide}
1815      */
generateDelta(Configuration base, Configuration change)1816     public static Configuration generateDelta(Configuration base, Configuration change) {
1817         final Configuration delta = new Configuration();
1818         if (base.fontScale != change.fontScale) {
1819             delta.fontScale = change.fontScale;
1820         }
1821 
1822         if (base.mcc != change.mcc) {
1823             delta.mcc = change.mcc;
1824         }
1825 
1826         if (base.mnc != change.mnc) {
1827             delta.mnc = change.mnc;
1828         }
1829 
1830         base.fixUpLocaleList();
1831         change.fixUpLocaleList();
1832         if (!base.mLocaleList.equals(change.mLocaleList))  {
1833             delta.mLocaleList = change.mLocaleList;
1834             delta.locale = change.locale;
1835         }
1836 
1837         if (base.touchscreen != change.touchscreen) {
1838             delta.touchscreen = change.touchscreen;
1839         }
1840 
1841         if (base.keyboard != change.keyboard) {
1842             delta.keyboard = change.keyboard;
1843         }
1844 
1845         if (base.keyboardHidden != change.keyboardHidden) {
1846             delta.keyboardHidden = change.keyboardHidden;
1847         }
1848 
1849         if (base.navigation != change.navigation) {
1850             delta.navigation = change.navigation;
1851         }
1852 
1853         if (base.navigationHidden != change.navigationHidden) {
1854             delta.navigationHidden = change.navigationHidden;
1855         }
1856 
1857         if (base.orientation != change.orientation) {
1858             delta.orientation = change.orientation;
1859         }
1860 
1861         if ((base.screenLayout & SCREENLAYOUT_SIZE_MASK) !=
1862                 (change.screenLayout & SCREENLAYOUT_SIZE_MASK)) {
1863             delta.screenLayout |= change.screenLayout & SCREENLAYOUT_SIZE_MASK;
1864         }
1865 
1866         if ((base.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK) !=
1867                 (change.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK)) {
1868             delta.screenLayout |= change.screenLayout & SCREENLAYOUT_LAYOUTDIR_MASK;
1869         }
1870 
1871         if ((base.screenLayout & SCREENLAYOUT_LONG_MASK) !=
1872                 (change.screenLayout & SCREENLAYOUT_LONG_MASK)) {
1873             delta.screenLayout |= change.screenLayout & SCREENLAYOUT_LONG_MASK;
1874         }
1875 
1876         if ((base.screenLayout & SCREENLAYOUT_ROUND_MASK) !=
1877                 (change.screenLayout & SCREENLAYOUT_ROUND_MASK)) {
1878             delta.screenLayout |= change.screenLayout & SCREENLAYOUT_ROUND_MASK;
1879         }
1880 
1881         if ((base.uiMode & UI_MODE_TYPE_MASK) != (change.uiMode & UI_MODE_TYPE_MASK)) {
1882             delta.uiMode |= change.uiMode & UI_MODE_TYPE_MASK;
1883         }
1884 
1885         if ((base.uiMode & UI_MODE_NIGHT_MASK) != (change.uiMode & UI_MODE_NIGHT_MASK)) {
1886             delta.uiMode |= change.uiMode & UI_MODE_NIGHT_MASK;
1887         }
1888 
1889         if (base.screenWidthDp != change.screenWidthDp) {
1890             delta.screenWidthDp = change.screenWidthDp;
1891         }
1892 
1893         if (base.screenHeightDp != change.screenHeightDp) {
1894             delta.screenHeightDp = change.screenHeightDp;
1895         }
1896 
1897         if (base.smallestScreenWidthDp != change.smallestScreenWidthDp) {
1898             delta.smallestScreenWidthDp = change.smallestScreenWidthDp;
1899         }
1900 
1901         if (base.densityDpi != change.densityDpi) {
1902             delta.densityDpi = change.densityDpi;
1903         }
1904         return delta;
1905     }
1906 
1907     private static final String XML_ATTR_FONT_SCALE = "fs";
1908     private static final String XML_ATTR_MCC = "mcc";
1909     private static final String XML_ATTR_MNC = "mnc";
1910     private static final String XML_ATTR_LOCALES = "locales";
1911     private static final String XML_ATTR_TOUCHSCREEN = "touch";
1912     private static final String XML_ATTR_KEYBOARD = "key";
1913     private static final String XML_ATTR_KEYBOARD_HIDDEN = "keyHid";
1914     private static final String XML_ATTR_HARD_KEYBOARD_HIDDEN = "hardKeyHid";
1915     private static final String XML_ATTR_NAVIGATION = "nav";
1916     private static final String XML_ATTR_NAVIGATION_HIDDEN = "navHid";
1917     private static final String XML_ATTR_ORIENTATION = "ori";
1918     private static final String XML_ATTR_SCREEN_LAYOUT = "scrLay";
1919     private static final String XML_ATTR_UI_MODE = "ui";
1920     private static final String XML_ATTR_SCREEN_WIDTH = "width";
1921     private static final String XML_ATTR_SCREEN_HEIGHT = "height";
1922     private static final String XML_ATTR_SMALLEST_WIDTH = "sw";
1923     private static final String XML_ATTR_DENSITY = "density";
1924 
1925     /**
1926      * Reads the attributes corresponding to Configuration member fields from the Xml parser.
1927      * The parser is expected to be on a tag which has Configuration attributes.
1928      *
1929      * @param parser The Xml parser from which to read attributes.
1930      * @param configOut The Configuration to populate from the Xml attributes.
1931      * {@hide}
1932      */
readXmlAttrs(XmlPullParser parser, Configuration configOut)1933     public static void readXmlAttrs(XmlPullParser parser, Configuration configOut)
1934             throws XmlPullParserException, IOException {
1935         configOut.fontScale = Float.intBitsToFloat(
1936                 XmlUtils.readIntAttribute(parser, XML_ATTR_FONT_SCALE, 0));
1937         configOut.mcc = XmlUtils.readIntAttribute(parser, XML_ATTR_MCC, 0);
1938         configOut.mnc = XmlUtils.readIntAttribute(parser, XML_ATTR_MNC, 0);
1939 
1940         final String localesStr = XmlUtils.readStringAttribute(parser, XML_ATTR_LOCALES);
1941         configOut.mLocaleList = LocaleList.forLanguageTags(localesStr);
1942         configOut.locale = configOut.mLocaleList.get(0);
1943 
1944         configOut.touchscreen = XmlUtils.readIntAttribute(parser, XML_ATTR_TOUCHSCREEN,
1945                 TOUCHSCREEN_UNDEFINED);
1946         configOut.keyboard = XmlUtils.readIntAttribute(parser, XML_ATTR_KEYBOARD,
1947                 KEYBOARD_UNDEFINED);
1948         configOut.keyboardHidden = XmlUtils.readIntAttribute(parser, XML_ATTR_KEYBOARD_HIDDEN,
1949                 KEYBOARDHIDDEN_UNDEFINED);
1950         configOut.hardKeyboardHidden =
1951                 XmlUtils.readIntAttribute(parser, XML_ATTR_HARD_KEYBOARD_HIDDEN,
1952                         HARDKEYBOARDHIDDEN_UNDEFINED);
1953         configOut.navigation = XmlUtils.readIntAttribute(parser, XML_ATTR_NAVIGATION,
1954                 NAVIGATION_UNDEFINED);
1955         configOut.navigationHidden = XmlUtils.readIntAttribute(parser, XML_ATTR_NAVIGATION_HIDDEN,
1956                 NAVIGATIONHIDDEN_UNDEFINED);
1957         configOut.orientation = XmlUtils.readIntAttribute(parser, XML_ATTR_ORIENTATION,
1958                 ORIENTATION_UNDEFINED);
1959         configOut.screenLayout = XmlUtils.readIntAttribute(parser, XML_ATTR_SCREEN_LAYOUT,
1960                 SCREENLAYOUT_UNDEFINED);
1961         configOut.uiMode = XmlUtils.readIntAttribute(parser, XML_ATTR_UI_MODE, 0);
1962         configOut.screenWidthDp = XmlUtils.readIntAttribute(parser, XML_ATTR_SCREEN_WIDTH,
1963                 SCREEN_WIDTH_DP_UNDEFINED);
1964         configOut.screenHeightDp = XmlUtils.readIntAttribute(parser, XML_ATTR_SCREEN_HEIGHT,
1965                 SCREEN_HEIGHT_DP_UNDEFINED);
1966         configOut.smallestScreenWidthDp =
1967                 XmlUtils.readIntAttribute(parser, XML_ATTR_SMALLEST_WIDTH,
1968                         SMALLEST_SCREEN_WIDTH_DP_UNDEFINED);
1969         configOut.densityDpi = XmlUtils.readIntAttribute(parser, XML_ATTR_DENSITY,
1970                 DENSITY_DPI_UNDEFINED);
1971     }
1972 
1973 
1974     /**
1975      * Writes the Configuration's member fields as attributes into the XmlSerializer.
1976      * The serializer is expected to have already started a tag so that attributes can be
1977      * immediately written.
1978      *
1979      * @param xml The serializer to which to write the attributes.
1980      * @param config The Configuration whose member fields to write.
1981      * {@hide}
1982      */
writeXmlAttrs(XmlSerializer xml, Configuration config)1983     public static void writeXmlAttrs(XmlSerializer xml, Configuration config) throws IOException {
1984         XmlUtils.writeIntAttribute(xml, XML_ATTR_FONT_SCALE,
1985                 Float.floatToIntBits(config.fontScale));
1986         if (config.mcc != 0) {
1987             XmlUtils.writeIntAttribute(xml, XML_ATTR_MCC, config.mcc);
1988         }
1989         if (config.mnc != 0) {
1990             XmlUtils.writeIntAttribute(xml, XML_ATTR_MNC, config.mnc);
1991         }
1992         config.fixUpLocaleList();
1993         if (!config.mLocaleList.isEmpty()) {
1994            XmlUtils.writeStringAttribute(xml, XML_ATTR_LOCALES, config.mLocaleList.toLanguageTags());
1995         }
1996         if (config.touchscreen != TOUCHSCREEN_UNDEFINED) {
1997             XmlUtils.writeIntAttribute(xml, XML_ATTR_TOUCHSCREEN, config.touchscreen);
1998         }
1999         if (config.keyboard != KEYBOARD_UNDEFINED) {
2000             XmlUtils.writeIntAttribute(xml, XML_ATTR_KEYBOARD, config.keyboard);
2001         }
2002         if (config.keyboardHidden != KEYBOARDHIDDEN_UNDEFINED) {
2003             XmlUtils.writeIntAttribute(xml, XML_ATTR_KEYBOARD_HIDDEN, config.keyboardHidden);
2004         }
2005         if (config.hardKeyboardHidden != HARDKEYBOARDHIDDEN_UNDEFINED) {
2006             XmlUtils.writeIntAttribute(xml, XML_ATTR_HARD_KEYBOARD_HIDDEN,
2007                     config.hardKeyboardHidden);
2008         }
2009         if (config.navigation != NAVIGATION_UNDEFINED) {
2010             XmlUtils.writeIntAttribute(xml, XML_ATTR_NAVIGATION, config.navigation);
2011         }
2012         if (config.navigationHidden != NAVIGATIONHIDDEN_UNDEFINED) {
2013             XmlUtils.writeIntAttribute(xml, XML_ATTR_NAVIGATION_HIDDEN, config.navigationHidden);
2014         }
2015         if (config.orientation != ORIENTATION_UNDEFINED) {
2016             XmlUtils.writeIntAttribute(xml, XML_ATTR_ORIENTATION, config.orientation);
2017         }
2018         if (config.screenLayout != SCREENLAYOUT_UNDEFINED) {
2019             XmlUtils.writeIntAttribute(xml, XML_ATTR_SCREEN_LAYOUT, config.screenLayout);
2020         }
2021         if (config.uiMode != 0) {
2022             XmlUtils.writeIntAttribute(xml, XML_ATTR_UI_MODE, config.uiMode);
2023         }
2024         if (config.screenWidthDp != SCREEN_WIDTH_DP_UNDEFINED) {
2025             XmlUtils.writeIntAttribute(xml, XML_ATTR_SCREEN_WIDTH, config.screenWidthDp);
2026         }
2027         if (config.screenHeightDp != SCREEN_HEIGHT_DP_UNDEFINED) {
2028             XmlUtils.writeIntAttribute(xml, XML_ATTR_SCREEN_HEIGHT, config.screenHeightDp);
2029         }
2030         if (config.smallestScreenWidthDp != SMALLEST_SCREEN_WIDTH_DP_UNDEFINED) {
2031             XmlUtils.writeIntAttribute(xml, XML_ATTR_SMALLEST_WIDTH, config.smallestScreenWidthDp);
2032         }
2033         if (config.densityDpi != DENSITY_DPI_UNDEFINED) {
2034             XmlUtils.writeIntAttribute(xml, XML_ATTR_DENSITY, config.densityDpi);
2035         }
2036     }
2037 }
2038