commit bf1642ccf9b242c3f01c5c906890c814a6cade8f
author Toshiki Kikuchi <toshikikikuchi@google.com> Tue Sep 15 12:01:52 2020 +0900
committer Toshiki Kikuchi <toshikikikuchi@google.com> Wed Oct 14 00:42:35 2020 +0000
tree ac1c19d8e8b49338cec2f15cdc63b415f01efe9e
parent e84086a20fe09a3948b1ef688c5869deed8bbff8

Launch activity in fullscreen to ensure the target activity is hidden

This CL changes the windowing mode of the second activity to fullscreen to ensure the first activity is hidden by the second one.
In multi-window envs (e.g. ARC), since there can be many free-form windows on the display, we should use fullscreen mode instead if we’d like to hide the first one.

Bug: 168439393
Test: atest android.app.cts.AppTaskTests#testMoveToFront
Change-Id: Ia092d98321194c3856601b72bf886ad524281d4a

tests/app/src/android/app/cts/AppTaskTests.java

diff --git a/tests/app/src/android/app/cts/AppTaskTests.java b/tests/app/src/android/app/cts/AppTaskTests.java
index 22b0cf0..366ebbf 100644
--- a/tests/app/src/android/app/cts/AppTaskTests.java
+++ b/tests/app/src/android/app/cts/AppTaskTests.java
@@ -16,6 +16,7 @@
 
 package android.app.cts;
 
+import static android.app.WindowConfiguration.WINDOWING_MODE_FULLSCREEN;
 import static android.content.Context.ACTIVITY_SERVICE;
 import static android.content.Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS;
 import static android.content.Intent.FLAG_ACTIVITY_MULTIPLE_TASK;
@@ -27,6 +28,7 @@
 
 import android.app.Activity;
 import android.app.ActivityManager;
+import android.app.ActivityOptions;
 import android.app.Instrumentation;
 import android.app.stubs.MockActivity;
 import android.app.stubs.MockListActivity;
@@ -134,7 +136,16 @@
     @Test
     public void testMoveToFront() throws Exception {
         final Activity a1 = mActivityRule.launchActivity(null);
-        final Activity a2 = mActivityRule.launchActivity(null);
+
+        // Launch fullscreen activity as an another task to hide the first activity
+        final Intent intent = new Intent();
+        intent.setComponent(new ComponentName(mTargetContext, MockActivity.class));
+        intent.setFlags(FLAG_ACTIVITY_NEW_TASK | FLAG_ACTIVITY_NEW_DOCUMENT
+                    | FLAG_ACTIVITY_MULTIPLE_TASK);
+        final ActivityOptions options = ActivityOptions.makeBasic();
+        options.setLaunchWindowingMode(WINDOWING_MODE_FULLSCREEN);
+        mInstrumentation.startActivitySync(intent, options.toBundle());
+
         final BooleanValue targetResumed = new BooleanValue();
         mLifecycleMonitor.addLifecycleCallback(new ActivityLifecycleCallback() {
             public void onActivityLifecycleChanged(Activity activity, Stage stage) {