Android之Handler实现延迟执行

1、Handler延迟2s执行一个runnable

            Handler handler=new Handler();
            Runnable runnable=new Runnable() {
                
                @Override
                public void run() {
                    // TODO Auto-generated method stub
                    if(xsLayout.getVisibility()==View.VISIBLE){
                        xsLayout.setVisibility(View.GONE);
                    }
                }
            };
            handler.postDelayed(runnable, 2000);

2、在runnable被执行之前取消这个定时任务

                    handler.removeCallbacks(runnable);

Done！