Ensure looper quits after all other messages are handled. (6853ac83) · Commits · e / os / android_frameworks_base

core/java/android/os/Looper.java

+10 −2

Original line number	Diff line number	Diff line
		@@ -201,8 +201,16 @@ public final class Looper {

		/**
		* Quits the looper.
		*
		* Causes the {@link #loop} method to terminate as soon as possible.
		* <p>
		* Causes the {@link #loop} method to terminate as soon as all remaining messages
		* in the message queue that are already due to be delivered have been handled.
		* However delayed messages with due times in the future may not be handled before
		* the loop terminates.
		* </p><p>
		* Any attempt to post messages to the queue after {@link #quit} has been called
		* will fail. For example, the {@link Handler#sendMessage(Message)} method will
		* return false when the looper is being terminated.
		* </p>
		*/
		public void quit() {
		mQueue.quit();

+6 −5

Original line number	Diff line number	Diff line
		@@ -132,11 +132,6 @@ public final class MessageQueue {
		nativePollOnce(mPtr, nextPollTimeoutMillis);

		synchronized (this) {
		if (mQuiting) {
		dispose();
		return null;
		}

		// Try to retrieve the next message. Return if found.
		final long now = SystemClock.uptimeMillis();
		Message prevMsg = null;
		@@ -170,6 +165,12 @@ public final class MessageQueue {
		nextPollTimeoutMillis = -1;
		}

		// Process the quit message now that all pending messages have been handled.
		if (mQuiting) {
		dispose();
		return null;
		}

		// If first time idle, then get the number of idlers to run.
		// Idle handles only run if the queue is empty or if the first message
		// in the queue (possibly a barrier) is due to be handled in the future.