1 /*
2  * Copyright (C) 2010 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.app.stubs;
18 
19 import android.app.Activity;
20 import android.app.Instrumentation;
21 import android.content.pm.ActivityInfo;
22 
23 public class OrientationTestUtils {
24 
25     /**
26      * Change the activity's orientation to something different and then switch back. This is used
27      * to trigger {@link Activity#onConfigurationChanged(android.content.res.Configuration)}.
28      *
29      * @param activity whose orientation will be changed and restored
30      */
toggleOrientation(Activity activity)31     public static void toggleOrientation(Activity activity) {
32         toggleOrientationSync(activity, null);
33     }
34 
35     /**
36      * Same as {@link #toggleOrientation(Activity)} except {@link Instrumentation#waitForIdleSync()}
37      * is called after each orientation change.
38      *
39      * @param activity whose orientation will be changed and restored
40      * @param instrumentation use for idle syncing
41      */
toggleOrientationSync(final Activity activity, final Instrumentation instrumentation)42     public static void toggleOrientationSync(final Activity activity,
43             final Instrumentation instrumentation) {
44         final int originalOrientation = activity.getResources().getConfiguration().orientation;
45         final int newOrientation = originalOrientation == ActivityInfo.SCREEN_ORIENTATION_PORTRAIT
46                 ? ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE
47                 : ActivityInfo.SCREEN_ORIENTATION_PORTRAIT;
48         changeOrientation(activity, instrumentation, newOrientation);
49         changeOrientation(activity, instrumentation, originalOrientation);
50     }
51 
changeOrientation(final Activity activity, Instrumentation instrumentation, final int orientation)52     private static void changeOrientation(final Activity activity,
53             Instrumentation instrumentation, final int orientation) {
54         activity.setRequestedOrientation(orientation);
55         if (instrumentation != null) {
56             instrumentation.waitForIdleSync();
57         }
58     }
59 }
60