Start power mode for activity launch earlier

Setting power mode to Launch earlier allows a configuration
of power hints to increase resources and handle activity launches
faster.

Test: app launch tests
BUG: 399380676
Flag: com.android.window.flags.early_launch_hint

Change-Id: I3316bcebb0db8f07ee5717d2d88f51638b7e243a

2 files changed, 20 insertions, 2 deletions

diff --git a/core/java/android/window/flags/windowing_frontend.aconfig b/core/java/android/window/flags/windowing_frontend.aconfig
index 0e19eb2d3219..f2ba16cf43d6 100644
--- a/core/java/android/window/flags/windowing_frontend.aconfig
+++ b/core/java/android/window/flags/windowing_frontend.aconfig
@@ -482,4 +482,15 @@ flag {
     metadata {
         purpose: PURPOSE_BUGFIX
     }
+}
+
+flag {
+    name: "early_launch_hint"
+    namespace: "windowing_frontend"
+    description: "Sets Launch powermode for activity launches earlier"
+    bug: "399380676"
+    is_fixed_read_only: true
+    metadata {
+        purpose: PURPOSE_BUGFIX
+    }
 }
\ No newline at end of file
diff --git a/services/core/java/com/android/server/wm/ActivityStarter.java b/services/core/java/com/android/server/wm/ActivityStarter.java
index bdde5fe9dcb5..d463ed098d34 100644
--- a/services/core/java/com/android/server/wm/ActivityStarter.java
+++ b/services/core/java/com/android/server/wm/ActivityStarter.java
@@ -1992,6 +1992,11 @@ class ActivityStarter {
             }
         }
 
+        if (com.android.window.flags.Flags.earlyLaunchHint()) {
+            mRootWindowContainer.startPowerModeLaunchIfNeeded(
+                    false /* forceSend */, mStartActivity);
+        }
+
         if (mTargetRootTask == null) {
             mTargetRootTask = getOrCreateRootTask(mStartActivity, mLaunchFlags, targetTask,
                     mOptions);
@@ -2064,8 +2069,10 @@ class ActivityStarter {
 
         mStartActivity.getTaskFragment().clearLastPausedActivity();
 
-        mRootWindowContainer.startPowerModeLaunchIfNeeded(
-                false /* forceSend */, mStartActivity);
+        if (!com.android.window.flags.Flags.earlyLaunchHint()) {
+            mRootWindowContainer.startPowerModeLaunchIfNeeded(
+                    false /* forceSend */, mStartActivity);
+        }
 
         final boolean isTaskSwitch = startedTask != prevTopTask;
         mTargetRootTask.startActivityLocked(mStartActivity, topRootTask, newTask, isTaskSwitch,