1
new Handler().postDelayed(new Runnable(){
public void run()
{
//execute the task
}
}, delay);
2
TimerTask task = new TimerTask()
{
public void run()
{
//execute the task
}
};
Timer timer = new Timer();
timer.schedule(task, delay);
3
new Thread(new Runnable()
{
public void run()
{
Thread.sleep(XXXX);
handler.sendMessage();----告诉主线程执行任务
}
}).start