1 /*
2  * Copyright (C) 2012 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 com.example.android.deviceconfig;
18 
19 import android.annotation.SuppressLint;
20 import android.annotation.TargetApi;
21 import android.content.Context;
22 import android.content.pm.FeatureInfo;
23 import android.content.pm.PackageManager;
24 import android.content.res.Configuration;
25 import android.content.res.Resources;
26 import android.hardware.Camera;
27 import android.hardware.Camera.CameraInfo;
28 import android.os.Build;
29 import android.os.Environment;
30 import android.os.StatFs;
31 import android.util.DisplayMetrics;
32 import android.util.Log;
33 import android.view.ViewConfiguration;
34 import android.widget.Toast;
35 
36 import org.w3c.dom.Document;
37 import org.w3c.dom.Element;
38 import org.w3c.dom.Text;
39 
40 import java.io.BufferedReader;
41 import java.io.File;
42 import java.io.FileNotFoundException;
43 import java.io.FileOutputStream;
44 import java.io.FileReader;
45 import java.io.IOException;
46 import java.util.ArrayList;
47 import java.util.Calendar;
48 import java.util.List;
49 import java.util.Locale;
50 
51 import javax.xml.XMLConstants;
52 import javax.xml.parsers.DocumentBuilderFactory;
53 import javax.xml.parsers.ParserConfigurationException;
54 import javax.xml.transform.OutputKeys;
55 import javax.xml.transform.Transformer;
56 import javax.xml.transform.TransformerConfigurationException;
57 import javax.xml.transform.TransformerException;
58 import javax.xml.transform.TransformerFactory;
59 import javax.xml.transform.TransformerFactoryConfigurationError;
60 import javax.xml.transform.dom.DOMSource;
61 import javax.xml.transform.stream.StreamResult;
62 
63 public class ConfigGenerator {
64     private Context mCtx;
65     private String mExtensions;
66 
67     public static final String NS_DEVICES_XSD = "http://schemas.android.com/sdk/devices/1";
68 
69     /**
70      * The "devices" element is the root element of this schema.
71      *
72      * It must contain one or more "device" elements that each define the
73      * hardware, software, and states for a given device.
74      */
75     public static final String NODE_DEVICES = "devices";
76 
77     /**
78      * A "device" element contains a "hardware" element, a "software" element
79      * for each API version it supports, and a "state" element for each possible
80      * state the device could be in.
81      */
82     public static final String NODE_DEVICE = "device";
83 
84     /**
85      * The "hardware" element contains all of the hardware information for a
86      * given device.
87      */
88     public static final String NODE_HARDWARE = "hardware";
89 
90     /**
91      * The "software" element contains all of the software information for an
92      * API version of the given device.
93      */
94     public static final String NODE_SOFTWARE = "software";
95 
96     /**
97      * The "state" element contains all of the parameters for a given state of
98      * the device. It's also capable of redefining hardware configurations if
99      * they change based on state.
100      */
101 
102     public static final String NODE_STATE = "state";
103 
104     public static final String NODE_KEYBOARD = "keyboard";
105     public static final String NODE_TOUCH = "touch";
106     public static final String NODE_GL_EXTENSIONS = "gl-extensions";
107     public static final String NODE_GL_VERSION = "gl-version";
108     public static final String NODE_NETWORKING = "networking";
109     public static final String NODE_REMOVABLE_STORAGE = "removable-storage";
110     public static final String NODE_FLASH = "flash";
111     public static final String NODE_LIVE_WALLPAPER_SUPPORT = "live-wallpaper-support";
112     public static final String NODE_BUTTONS = "buttons";
113     public static final String NODE_CAMERA = "camera";
114     public static final String NODE_LOCATION = "location";
115     public static final String NODE_GPU = "gpu";
116     public static final String NODE_DOCK = "dock";
117     public static final String NODE_YDPI = "ydpi";
118     public static final String NODE_POWER_TYPE = "power-type";
119     public static final String NODE_Y_DIMENSION = "y-dimension";
120     public static final String NODE_SCREEN_RATIO = "screen-ratio";
121     public static final String NODE_NAV_STATE = "nav-state";
122     public static final String NODE_MIC = "mic";
123     public static final String NODE_RAM = "ram";
124     public static final String NODE_XDPI = "xdpi";
125     public static final String NODE_DIMENSIONS = "dimensions";
126     public static final String NODE_ABI = "abi";
127     public static final String NODE_MECHANISM = "mechanism";
128     public static final String NODE_MULTITOUCH = "multitouch";
129     public static final String NODE_NAV = "nav";
130     public static final String NODE_PIXEL_DENSITY = "pixel-density";
131     public static final String NODE_SCREEN_ORIENTATION = "screen-orientation";
132     public static final String NODE_AUTOFOCUS = "autofocus";
133     public static final String NODE_SCREEN_SIZE = "screen-size";
134     public static final String NODE_DESCRIPTION = "description";
135     public static final String NODE_BLUETOOTH_PROFILES = "bluetooth-profiles";
136     public static final String NODE_SCREEN = "screen";
137     public static final String NODE_SENSORS = "sensors";
138     public static final String NODE_DIAGONAL_LENGTH = "diagonal-length";
139     public static final String NODE_SCREEN_TYPE = "screen-type";
140     public static final String NODE_KEYBOARD_STATE = "keyboard-state";
141     public static final String NODE_X_DIMENSION = "x-dimension";
142     public static final String NODE_CPU = "cpu";
143     public static final String NODE_INTERNAL_STORAGE = "internal-storage";
144     public static final String NODE_NAME = "name";
145     public static final String NODE_MANUFACTURER = "manufacturer";
146     public static final String NODE_API_LEVEL = "api-level";
147     public static final String ATTR_DEFAULT = "default";
148     public static final String ATTR_UNIT = "unit";
149     public static final String UNIT_BYTES = "B";
150     public static final String UNIT_KIBIBYTES = "KiB";
151     public static final String UNIT_MEBIBYTES = "MiB";
152     public static final String UNIT_GIBIBYTES = "GiB";
153     public static final String UNIT_TEBIBYTES = "TiB";
154     public static final String LOCAL_NS = "d";
155     public static final String PREFIX = LOCAL_NS + ":";
156 
157     private static final String TAG = "ConfigGenerator";
158 
ConfigGenerator(Context context, String extensions)159     public ConfigGenerator(Context context, String extensions) {
160         mCtx = context;
161         mExtensions = extensions;
162     }
163 
164     @SuppressLint("WorldReadableFiles")
generateConfig()165     public String generateConfig() {
166         Resources resources = mCtx.getResources();
167         PackageManager packageMgr = mCtx.getPackageManager();
168         DisplayMetrics metrics = resources.getDisplayMetrics();
169         Configuration config = resources.getConfiguration();
170 
171         try {
172             Document doc = DocumentBuilderFactory.newInstance().newDocumentBuilder().newDocument();
173 
174             Element devices = doc.createElement(PREFIX + NODE_DEVICES);
175             devices.setAttribute(XMLConstants.XMLNS_ATTRIBUTE + ":xsi",
176                     XMLConstants.W3C_XML_SCHEMA_INSTANCE_NS_URI);
177             devices.setAttribute(XMLConstants.XMLNS_ATTRIBUTE + ":" + LOCAL_NS, NS_DEVICES_XSD);
178             doc.appendChild(devices);
179 
180             Element device = doc.createElement(PREFIX + NODE_DEVICE);
181             devices.appendChild(device);
182 
183             Element name = doc.createElement(PREFIX + NODE_NAME);
184             device.appendChild(name);
185             name.appendChild(doc.createTextNode(android.os.Build.MODEL));
186             Element manufacturer = doc.createElement(PREFIX + NODE_MANUFACTURER);
187             device.appendChild(manufacturer);
188             manufacturer.appendChild(doc.createTextNode(android.os.Build.MANUFACTURER));
189 
190             Element hardware = doc.createElement(PREFIX + NODE_HARDWARE);
191             device.appendChild(hardware);
192 
193             Element screen = doc.createElement(PREFIX + NODE_SCREEN);
194             hardware.appendChild(screen);
195 
196             Element screenSize = doc.createElement(PREFIX + NODE_SCREEN_SIZE);
197             screen.appendChild(screenSize);
198             Text screenSizeText;
199             switch (config.screenLayout & Configuration.SCREENLAYOUT_SIZE_MASK) {
200             case Configuration.SCREENLAYOUT_SIZE_SMALL:
201                 screenSizeText = doc.createTextNode("small");
202                 break;
203             case Configuration.SCREENLAYOUT_SIZE_NORMAL:
204                 screenSizeText = doc.createTextNode("normal");
205                 break;
206             case Configuration.SCREENLAYOUT_SIZE_LARGE:
207                 screenSizeText = doc.createTextNode("large");
208                 break;
209             case Configuration.SCREENLAYOUT_SIZE_XLARGE:
210                 screenSizeText = doc.createTextNode("xlarge");
211                 break;
212             default:
213                 screenSizeText = doc.createTextNode(" ");
214                 break;
215             }
216             screenSize.appendChild(screenSizeText);
217 
218             Element diagonalLength = doc.createElement(PREFIX + NODE_DIAGONAL_LENGTH);
219             screen.appendChild(diagonalLength);
220             double xin = metrics.widthPixels / metrics.xdpi;
221             double yin = metrics.heightPixels / metrics.ydpi;
222             double diag = Math.sqrt(Math.pow(xin, 2) + Math.pow(yin, 2));
223             diagonalLength.appendChild(doc.createTextNode(
224                   String.format(Locale.US, "%1$.2f", diag)));
225 
226             Element pixelDensity = doc.createElement(PREFIX + NODE_PIXEL_DENSITY);
227             screen.appendChild(pixelDensity);
228             Text pixelDensityText;
229             switch (metrics.densityDpi) {
230             case DisplayMetrics.DENSITY_LOW:
231                 pixelDensityText = doc.createTextNode("ldpi");
232                 break;
233             case DisplayMetrics.DENSITY_MEDIUM:
234                 pixelDensityText = doc.createTextNode("mdpi");
235                 break;
236             case DisplayMetrics.DENSITY_TV:
237                 pixelDensityText = doc.createTextNode("tvdpi");
238                 break;
239             case DisplayMetrics.DENSITY_HIGH:
240                 pixelDensityText = doc.createTextNode("hdpi");
241                 break;
242             case DisplayMetrics.DENSITY_XHIGH:
243                 pixelDensityText = doc.createTextNode("xhdpi");
244                 break;
245             default:
246                 pixelDensityText = doc.createTextNode(" ");
247             }
248             pixelDensity.appendChild(pixelDensityText);
249 
250             Element screenRatio = doc.createElement(PREFIX + NODE_SCREEN_RATIO);
251             screen.appendChild(screenRatio);
252             Text screenRatioText;
253             switch (config.screenLayout & Configuration.SCREENLAYOUT_LONG_MASK) {
254             case Configuration.SCREENLAYOUT_LONG_YES:
255                 screenRatioText = doc.createTextNode("long");
256                 break;
257             case Configuration.SCREENLAYOUT_LONG_NO:
258                 screenRatioText = doc.createTextNode("notlong");
259                 break;
260             default:
261                 screenRatioText = doc.createTextNode(" ");
262                 break;
263             }
264             screenRatio.appendChild(screenRatioText);
265 
266             Element dimensions = doc.createElement(PREFIX + NODE_DIMENSIONS);
267             screen.appendChild(dimensions);
268 
269             Element xDimension = doc.createElement(PREFIX + NODE_X_DIMENSION);
270             dimensions.appendChild(xDimension);
271             xDimension.appendChild(doc.createTextNode(Integer.toString(metrics.widthPixels)));
272 
273             Element yDimension = doc.createElement(PREFIX + NODE_Y_DIMENSION);
274             dimensions.appendChild(yDimension);
275             yDimension.appendChild(doc.createTextNode(Integer.toString(metrics.heightPixels)));
276 
277             Element xdpi = doc.createElement(PREFIX + NODE_XDPI);
278             screen.appendChild(xdpi);
279             xdpi.appendChild(doc.createTextNode(Double.toString(metrics.xdpi)));
280 
281             Element ydpi = doc.createElement(PREFIX + NODE_YDPI);
282             screen.appendChild(ydpi);
283             ydpi.appendChild(doc.createTextNode(Double.toString(metrics.ydpi)));
284 
285             Element touch = doc.createElement(PREFIX + NODE_TOUCH);
286             screen.appendChild(touch);
287 
288             Element multitouch = doc.createElement(PREFIX + NODE_MULTITOUCH);
289             touch.appendChild(multitouch);
290             Text multitouchText;
291             if (packageMgr
292                     .hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_JAZZHAND)) {
293                 multitouchText = doc.createTextNode("jazz-hands");
294             } else if (packageMgr
295                     .hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH_DISTINCT)) {
296                 multitouchText = doc.createTextNode("distinct");
297             } else if (packageMgr.hasSystemFeature(PackageManager.FEATURE_TOUCHSCREEN_MULTITOUCH)) {
298                 multitouchText = doc.createTextNode("basic");
299             } else {
300                 multitouchText = doc.createTextNode("none");
301             }
302             multitouch.appendChild(multitouchText);
303 
304             Element mechanism = doc.createElement(PREFIX + NODE_MECHANISM);
305             touch.appendChild(mechanism);
306             Text mechanismText;
307             switch (config.touchscreen) {
308             case Configuration.TOUCHSCREEN_STYLUS:
309                 mechanismText = doc.createTextNode("stylus");
310             case Configuration.TOUCHSCREEN_FINGER:
311                 mechanismText = doc.createTextNode("finger");
312             case Configuration.TOUCHSCREEN_NOTOUCH:
313                 mechanismText = doc.createTextNode("notouch");
314             default:
315                 mechanismText = doc.createTextNode(" ");
316             }
317             mechanism.appendChild(mechanismText);
318 
319             // Create an empty place holder node for screen-type since we can't
320             // actually determine it
321 
322             Element screenType = doc.createElement(PREFIX + NODE_SCREEN_TYPE);
323             touch.appendChild(screenType);
324             screenType.appendChild(doc.createTextNode(" "));
325 
326             Element networking = doc.createElement(PREFIX + NODE_NETWORKING);
327             hardware.appendChild(networking);
328             Text networkingText = doc.createTextNode("");
329             networking.appendChild(networkingText);
330             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_WIFI)) {
331                 networkingText.appendData("\nWifi");
332             }
333             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_BLUETOOTH)) {
334                 networkingText.appendData("\nBluetooth");
335             }
336             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_NFC)) {
337                 networkingText.appendData("\nNFC");
338             }
339 
340             Element sensors = doc.createElement(PREFIX + NODE_SENSORS);
341             hardware.appendChild(sensors);
342             Text sensorsText = doc.createTextNode("");
343             sensors.appendChild(sensorsText);
344             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_SENSOR_ACCELEROMETER)) {
345                 sensorsText.appendData("\nAccelerometer");
346             }
347             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_SENSOR_BAROMETER)) {
348                 sensorsText.appendData("\nBarometer");
349             }
350             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_SENSOR_COMPASS)) {
351                 sensorsText.appendData("\nCompass");
352             }
353             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_LOCATION_GPS)) {
354                 sensorsText.appendData("\nGPS");
355             }
356             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_SENSOR_GYROSCOPE)) {
357                 sensorsText.appendData("\nGyroscope");
358             }
359             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_SENSOR_LIGHT)) {
360                 sensorsText.appendData("\nLightSensor");
361             }
362             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_SENSOR_PROXIMITY)) {
363                 sensorsText.appendData("\nProximitySensor");
364             }
365 
366             Element mic = doc.createElement(PREFIX + NODE_MIC);
367             hardware.appendChild(mic);
368             Text micText;
369             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_MICROPHONE)) {
370                 micText = doc.createTextNode("true");
371             } else {
372                 micText = doc.createTextNode("false");
373             }
374             mic.appendChild(micText);
375 
376             if (android.os.Build.VERSION.SDK_INT >= 9){
377                 List<Element> cameras = getCameraElements(doc);
378                 for (Element cam : cameras){
379                     hardware.appendChild(cam);
380                 }
381             } else {
382                 Camera c = Camera.open();
383                 Element camera = doc.createElement(PREFIX + NODE_CAMERA);
384                 hardware.appendChild(camera);
385                 Element location = doc.createElement(PREFIX + NODE_LOCATION);
386                 camera.appendChild(location);
387                 // All camera's before API 9 were on the back
388                 location.appendChild(doc.createTextNode("back"));
389                 Camera.Parameters cParams = c.getParameters();
390                 Element autofocus = doc.createElement(PREFIX + NODE_AUTOFOCUS);
391                 camera.appendChild(autofocus);
392                 List<String> foci = cParams.getSupportedFocusModes();
393                 if (foci == null) {
394                     autofocus.appendChild(doc.createTextNode(" "));
395                 } else if (foci.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
396                     autofocus.appendChild(doc.createTextNode("true"));
397                 } else {
398                     autofocus.appendChild(doc.createTextNode("false"));
399                 }
400 
401                 Element flash = doc.createElement(PREFIX + NODE_FLASH);
402                 camera.appendChild(flash);
403                 List<String> flashes = cParams.getSupportedFlashModes();
404                 if (flashes == null || !flashes.contains(Camera.Parameters.FLASH_MODE_ON)) {
405                     flash.appendChild(doc.createTextNode("false"));
406                 } else {
407                     flash.appendChild(doc.createTextNode("true"));
408                 }
409                 c.release();
410             }
411 
412 
413             Element keyboard = doc.createElement(PREFIX + NODE_KEYBOARD);
414             hardware.appendChild(keyboard);
415             Text keyboardText;
416             switch (config.keyboard) {
417             case Configuration.KEYBOARD_NOKEYS:
418                 keyboardText = doc.createTextNode("nokeys");
419                 break;
420             case Configuration.KEYBOARD_12KEY:
421                 keyboardText = doc.createTextNode("12key");
422                 break;
423             case Configuration.KEYBOARD_QWERTY:
424                 keyboardText = doc.createTextNode("qwerty");
425                 break;
426             default:
427                 keyboardText = doc.createTextNode(" ");
428             }
429             keyboard.appendChild(keyboardText);
430 
431             Element nav = doc.createElement(PREFIX + NODE_NAV);
432             hardware.appendChild(nav);
433             Text navText;
434             switch (config.navigation) {
435             case Configuration.NAVIGATION_DPAD:
436                 navText = doc.createTextNode("dpad");
437             case Configuration.NAVIGATION_TRACKBALL:
438                 navText = doc.createTextNode("trackball");
439             case Configuration.NAVIGATION_WHEEL:
440                 navText = doc.createTextNode("wheel");
441             case Configuration.NAVIGATION_NONAV:
442                 navText = doc.createTextNode("nonav");
443             default:
444                 navText = doc.createTextNode(" ");
445             }
446             nav.appendChild(navText);
447 
448             Element ram = doc.createElement(PREFIX + NODE_RAM);
449             hardware.appendChild(ram);
450             // totalMemory given in bytes, divide by 1048576 to get RAM in MiB
451             String line;
452             long ramAmount = 0;
453             String unit = UNIT_BYTES;
454             try {
455                 BufferedReader meminfo = new BufferedReader(new FileReader("/proc/meminfo"));
456                 while ((line = meminfo.readLine()) != null) {
457                     String[] vals = line.split("[\\s]+");
458                     if (vals[0].equals("MemTotal:")) {
459                         try {
460                             /*
461                              * We're going to want it as a string eventually,
462                              * but parsing it lets us validate it's actually a
463                              * number and something strange isn't going on
464                              */
465                             ramAmount = Long.parseLong(vals[1]);
466                             unit = vals[2];
467                             break;
468                         } catch (NumberFormatException e) {
469                             // Ignore
470                         }
471                     }
472                 }
473                 meminfo.close();
474             } catch (FileNotFoundException e) {
475                 // Ignore
476             }
477             if (ramAmount > 0) {
478                 if (unit.equals("B")) {
479                     unit = UNIT_BYTES;
480                 } else if (unit.equals("kB")) {
481                     unit = UNIT_KIBIBYTES;
482                 } else if (unit.equals("MB")) {
483                     unit = UNIT_MEBIBYTES;
484                 } else if (unit.equals("GB")) {
485                     unit = UNIT_GIBIBYTES;
486                 } else {
487                     unit = " ";
488                 }
489             }
490             ram.setAttribute(ATTR_UNIT, unit);
491             ram.appendChild(doc.createTextNode(Long.toString(ramAmount)));
492 
493             Element buttons = doc.createElement(PREFIX + NODE_BUTTONS);
494             hardware.appendChild(buttons);
495             Text buttonsText;
496             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.ICE_CREAM_SANDWICH) {
497                 buttonsText = doc.createTextNode(getButtonsType());
498             } else {
499                 buttonsText = doc.createTextNode("hard");
500             }
501             buttons.appendChild(buttonsText);
502 
503             Element internalStorage = doc.createElement(PREFIX + NODE_INTERNAL_STORAGE);
504             hardware.appendChild(internalStorage);
505             StatFs rootStat = new StatFs(Environment.getRootDirectory().getAbsolutePath());
506             long bytesAvailable = rootStat.getBlockSize() * rootStat.getBlockCount();
507             long internalStorageSize = bytesAvailable / (1024 * 1024);
508             internalStorage.appendChild(doc.createTextNode(Long.toString(internalStorageSize)));
509             internalStorage.setAttribute(ATTR_UNIT, UNIT_MEBIBYTES);
510 
511             Element externalStorage = doc.createElement(PREFIX + NODE_REMOVABLE_STORAGE);
512             hardware.appendChild(externalStorage);
513             externalStorage.appendChild(doc.createTextNode(" "));
514 
515 
516             // Don't know CPU, GPU types
517             Element cpu = doc.createElement(PREFIX + NODE_CPU);
518             hardware.appendChild(cpu);
519             cpu.appendChild(doc.createTextNode(" "));
520             Element gpu = doc.createElement(PREFIX + NODE_GPU);
521             hardware.appendChild(gpu);
522             gpu.appendChild(doc.createTextNode(" "));
523 
524             Element abi = doc.createElement(PREFIX + NODE_ABI);
525             hardware.appendChild(abi);
526             Text abiText = doc.createTextNode("");
527             abi.appendChild(abiText);
528             abiText.appendData("\n" + android.os.Build.CPU_ABI);
529             abiText.appendData("\n" + android.os.Build.CPU_ABI2);
530 
531             // Don't know about either the dock or plugged-in element
532             Element dock = doc.createElement(PREFIX + NODE_DOCK);
533             hardware.appendChild(dock);
534             dock.appendChild(doc.createTextNode(" "));
535 
536             Element pluggedIn = doc.createElement(PREFIX + NODE_POWER_TYPE);
537             hardware.appendChild(pluggedIn);
538             pluggedIn.appendChild(doc.createTextNode(" "));
539 
540             Element software = doc.createElement(PREFIX + NODE_SOFTWARE);
541             device.appendChild(software);
542 
543             Element apiLevel = doc.createElement(PREFIX + NODE_API_LEVEL);
544             software.appendChild(apiLevel);
545             apiLevel.appendChild(doc.createTextNode(Integer
546                     .toString(android.os.Build.VERSION.SDK_INT)));
547 
548             Element liveWallpaperSupport = doc.createElement(PREFIX + NODE_LIVE_WALLPAPER_SUPPORT);
549             software.appendChild(liveWallpaperSupport);
550             if (packageMgr.hasSystemFeature(PackageManager.FEATURE_LIVE_WALLPAPER)) {
551                 liveWallpaperSupport.appendChild(doc.createTextNode("true"));
552             } else {
553                 liveWallpaperSupport.appendChild(doc.createTextNode("flase"));
554             }
555 
556             Element bluetoothProfiles = doc.createElement(PREFIX + NODE_BLUETOOTH_PROFILES);
557             software.appendChild(bluetoothProfiles);
558             bluetoothProfiles.appendChild(doc.createTextNode(" "));
559 
560             Element glVersion = doc.createElement(PREFIX + NODE_GL_VERSION);
561             software.appendChild(glVersion);
562             String glVersionString = " ";
563 
564             FeatureInfo[] features = packageMgr.getSystemAvailableFeatures();
565             for (FeatureInfo feature : features) {
566                 if (feature.reqGlEsVersion > 0) {
567                     glVersionString = feature.getGlEsVersion();
568                     break;
569                 }
570             }
571 
572             glVersion.appendChild(doc.createTextNode(glVersionString));
573 
574             Element glExtensions = doc.createElement(PREFIX + NODE_GL_EXTENSIONS);
575             software.appendChild(glExtensions);
576             if (mExtensions != null && !mExtensions.trim().equals("")) {
577                 glExtensions.appendChild(doc.createTextNode(mExtensions));
578             } else {
579                 glExtensions.appendChild(doc.createTextNode(" "));
580             }
581 
582             Transformer tf = TransformerFactory.newInstance().newTransformer();
583             tf.setOutputProperty(OutputKeys.INDENT, "yes");
584             tf.setOutputProperty("{http://xml.apache.org/xslt}indent-amount", "2");
585             DOMSource source = new DOMSource(doc);
586             String filename = String.format("devices_%1$tm_%1$td_%1$ty.xml", Calendar.getInstance()
587                     .getTime());
588             File dir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
589             File outFile = new File(dir, filename);
590             FileOutputStream out = new FileOutputStream(new File(dir, filename));
591             StreamResult result = new StreamResult(out);
592             tf.transform(source, result);
593             out.flush();
594             out.close();
595             return outFile.getAbsolutePath();
596         } catch (ParserConfigurationException e) {
597             error("Parser config exception", e);
598         } catch (TransformerConfigurationException e) {
599             error("Transformer config exception", e);
600         } catch (TransformerFactoryConfigurationError e) {
601             error("TransformerFactory config exception", e);
602         } catch (TransformerException e) {
603             error("Error transforming", e);
604         } catch (IOException e) {
605             error("I/O Error", e);
606         }
607         return null;
608     }
609 
610     @TargetApi(9)
getCameraElements(Document doc)611     private List<Element> getCameraElements(Document doc) {
612         List<Element> cList = new ArrayList<Element>();
613         for (int i = 0; i < Camera.getNumberOfCameras(); i++) {
614             Element camera = doc.createElement(PREFIX + NODE_CAMERA);
615             cList.add(camera);
616             Element location = doc.createElement(PREFIX + NODE_LOCATION);
617             camera.appendChild(location);
618             Text locationText;
619             Camera.CameraInfo cInfo = new Camera.CameraInfo();
620             Camera.getCameraInfo(i, cInfo);
621             if (cInfo.facing == Camera.CameraInfo.CAMERA_FACING_FRONT) {
622                 locationText = doc.createTextNode("front");
623             } else if (cInfo.facing == CameraInfo.CAMERA_FACING_BACK) {
624                 locationText = doc.createTextNode("back");
625             } else {
626                 locationText = doc.createTextNode(" ");
627             }
628             location.appendChild(locationText);
629 
630             Camera c = Camera.open(i);
631             Camera.Parameters cParams = c.getParameters();
632 
633             Element autofocus = doc.createElement(PREFIX + NODE_AUTOFOCUS);
634             camera.appendChild(autofocus);
635             List<String> foci = cParams.getSupportedFocusModes();
636             if (foci == null) {
637                 autofocus.appendChild(doc.createTextNode(" "));
638             } else if (foci.contains(Camera.Parameters.FOCUS_MODE_AUTO)) {
639                 autofocus.appendChild(doc.createTextNode("true"));
640             } else {
641                 autofocus.appendChild(doc.createTextNode("false"));
642             }
643 
644             Element flash = doc.createElement(PREFIX + NODE_FLASH);
645             camera.appendChild(flash);
646             List<String> flashes = cParams.getSupportedFlashModes();
647             if (flashes == null || !flashes.contains(Camera.Parameters.FLASH_MODE_ON)) {
648                 flash.appendChild(doc.createTextNode("false"));
649             } else {
650                 flash.appendChild(doc.createTextNode("true"));
651             }
652             c.release();
653         }
654         return cList;
655     }
656 
657     @TargetApi(14)
getButtonsType()658     private String getButtonsType() {
659         ViewConfiguration vConfig = ViewConfiguration.get(mCtx);
660 
661         if (vConfig.hasPermanentMenuKey()) {
662             return "hard";
663         } else {
664             return "soft";
665         }
666     }
667 
error(String err, Throwable e)668     private void error(String err, Throwable e) {
669         Toast.makeText(mCtx, "Error Generating Configuration", Toast.LENGTH_SHORT).show();
670         Log.e(TAG, err);
671         Log.e(TAG, e.getLocalizedMessage());
672     }
673 }
674