특정 시간후에 코드 실행하기

# Handler

new Handler(Looper.getMainLooper()).postDelayed(new Runnable() {
	@Override
	public void run() {
		// 실행코드
	}
}, 1000);

# Timer

new Timer().schedule(new TimerTask() {          
	@Override
	public void run() {
		// 실행코드
	}
}, 1000);

# ScheduledExecutorService

private static final ScheduledExecutorService worker = Executors.newSingleThreadScheduledExecutor();
Runnable runnable = new Runnable() {
	public void run() {
    	// 실행코드
	}
};
worker.schedule(runnable, 1, TimeUnit.SECONDS);