public synchronized void execute(final Runnable r) {
mTasks.offer(
new Runnable() {
public void run() {
try {
r.run();
} finally {
scheduleNext();
}
}
});
if (mActive == null) {
scheduleNext();
}
}
protected synchronized void scheduleNext() {
mActive = mReverse ? mTasks.pollLast() : mTasks.poll();
if (mActive != null) {
THREAD_POOL_EXECUTOR.execute(mActive);
}
}