commit b761e9834e9fbf49c2cade7a37dbc3fa53900472
author Vinit Nayak <peanutbutter@google.com> Fri Mar 15 17:31:20 2024 -0700
committer Vinit Nayak <peanutbutter@google.com> Mon Mar 18 14:41:57 2024 -0700
tree 3d49615a7831b9625e476c9da86e862dfb39e09a
parent 7d5531757bdef7cffb7f820ae7708fa4f740b214

Launch overview instance of app for taskbar in Overview

* This only works for fullscreen tasks, app pairs aren't
properly launching yet
* We re-layer the leash to be above launcher since live tiles
are originally below
* The new task comes in from TaskAnimationManager#onTaskAppeared

Bug: 316485863
Test: Tested w/ tapping fullscreen apps in overview when
their thumbnail is scrolled off screen. Animation occurs for
both live tile and thumbnail

Change-Id: I5a3c079244a1517becb845ce25ff9f4e671383b1

quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java

diff --git a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
index 5f69a9c..52098af 100644
--- a/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
+++ b/quickstep/src/com/android/launcher3/taskbar/TaskbarActivityContext.java
@@ -17,6 +17,7 @@
 
 import static android.content.pm.PackageManager.FEATURE_PC;
 import static android.os.Trace.TRACE_TAG_APP;
+import static android.view.Display.DEFAULT_DISPLAY;
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 import static android.view.WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE;
 import static android.view.WindowManager.LayoutParams.LAYOUT_IN_DISPLAY_CUTOUT_MODE_ALWAYS;
@@ -1214,7 +1215,7 @@
                     .handleAppPairLaunchInApp((AppPairIcon) launchingIconView, itemInfos);
         } else {
             // Tapped a single app, nothing complicated here.
-            startItemInfoActivity(itemInfos.get(0));
+            startItemInfoActivity(itemInfos.get(0), null /*foundTask*/);
         }
     }
 
@@ -1255,19 +1256,37 @@
                         recents.getSplitSelectController().getAppPairsController().launchAppPair(
                                 (AppPairIcon) launchingIconView);
                     } else {
-                        startItemInfoActivity(itemInfos.get(0));
+                        startItemInfoActivity(itemInfos.get(0), foundTask);
                     }
                 }
         );
     }
 
-    private void startItemInfoActivity(ItemInfo info) {
+    /**
+     * Starts an activity with the information provided by the "info" param. However, if
+     * taskInRecents is present, it will prioritize re-launching an existing instance via
+     * {@link ActivityManagerWrapper#startActivityFromRecents(int, ActivityOptions)}
+     */
+    private void startItemInfoActivity(ItemInfo info, @Nullable Task taskInRecents) {
         Intent intent = new Intent(info.getIntent())
                 .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
         try {
             TestLogging.recordEvent(TestProtocol.SEQUENCE_MAIN, "start: taskbarAppIcon");
             if (info.user.equals(Process.myUserHandle())) {
                 // TODO(b/216683257): Use startActivityForResult for search results that require it.
+                if (taskInRecents != null) {
+                    // Re launch instance from recents
+                    ActivityOptionsWrapper opts = getActivityLaunchOptions(null, info);
+                    opts.options.setLaunchDisplayId(
+                            getDisplay() == null ? DEFAULT_DISPLAY : getDisplay().getDisplayId());
+                    if (ActivityManagerWrapper.getInstance()
+                            .startActivityFromRecents(taskInRecents.key, opts.options)) {
+                        mControllers.uiController.getRecentsView()
+                                .addSideTaskLaunchCallback(opts.onEndCallback);
+                        return;
+                    }
+                }
+
                 startActivity(intent);
             } else {
                 getSystemService(LauncherApps.class).startMainActivity(

quickstep/src/com/android/quickstep/views/RecentsView.java

diff --git a/quickstep/src/com/android/quickstep/views/RecentsView.java b/quickstep/src/com/android/quickstep/views/RecentsView.java
index 2ead7a6..af1dd3a 100644
--- a/quickstep/src/com/android/quickstep/views/RecentsView.java
+++ b/quickstep/src/com/android/quickstep/views/RecentsView.java
@@ -1270,6 +1270,8 @@
                     final SurfaceTransaction showTransaction = new SurfaceTransaction();
                     for (int i = apps.length - 1; i >= 0; --i) {
                         showTransaction.getTransaction().show(apps[i].leash);
+                        showTransaction.forSurface(apps[i].leash).setLayer(
+                                Integer.MAX_VALUE - 1000 + apps[i].prefixOrderIndex);
                     }
                     surfaceApplier.scheduleApply(showTransaction);
                 }