Android 三秒跳转另一个页面

1.用handler进行操作

private Handler handler = new Handler(){        @Override        public void handleMessage(Message msg) {            super.handleMessage(msg);            if (count < 0 ) {// 跳转                startActivity(new Intent(MainActivity.this,                        Activity_two.class));                finish();            } else {// 倒计时处理                text.setText(count + "s");                count--;                handler.sendEmptyMessageDelayed(99, 1000);            }        }    };

2.onCreate里面的内容

protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        handler.sendEmptyMessageDelayed(99,1000);    }