ActivityThread: Avoid creating duplicate handlers and reuse mH

sMainThreadHandler is used for notification of changes in
SharedPreferences and refers to a new instance of Handler instead
of the existing instance, mH, of the ActivityThread. Fix to reuse
existing handlers associated with main looper.

Change-Id: I794a5802a9eacdb188bd0619db5e70e3ae89a07d

parent 98853623

core/java/android/app/ActivityThread.java

+4 −3

Original line number	Diff line number	Diff line
		@@ -4728,13 +4728,14 @@ public final class ActivityThread {
		Process.setArgV0("<pre-initialized>");

		Looper.prepareMainLooper();
		if (sMainThreadHandler == null) {
		sMainThreadHandler = new Handler();
		}

		ActivityThread thread = new ActivityThread();
		thread.attach(false);

		if (sMainThreadHandler == null) {
		sMainThreadHandler = thread.getHandler();
		}

		AsyncTask.init();

		if (false) {