Android延时启动任务的方法

开启新线程 

new Thread(new Runnable(){

public void run(){

Thread.sleep(XXXX);

handler.sendMessage(); //告诉主线程执行任务

}

}).start

利用定时器

TimerTask task = new TimerTask(){

public void run(){

//execute the task

}

};

Timer timer = new Timer();

timer.schedule(task, delay);

利用handler

new Handler().postDelayed(new Runnable(){
public void run() {
//execute the task
}
}, delay);