Class GcIdler

frameworks/base/core/java/android/app/ActivityThread.java:1817–1823

    }

    final class GcIdler implements MessageQueue.IdleHandler {
        @Override
        public final boolean queueIdle() {
            doGcIfNeeded();
            return false;
        }
    }

    public static ActivityThread currentActivityThread() {
        return sCurrentActivityThread;