Handler倒计时跳转1v

Activity

private int time=5;private Handler hand=new Handler(){    @Override    public void handleMessage(Message msg) {        if(msg.what==0){            if(time>0){                time--;                hand.sendEmptyMessageDelayed(0,1000);            }else{                Intent inte=new Intent(MainActivity.this,Main2Activity.class);                startActivity(inte);                finish();            }        }    }};@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    //去除title    ActionBar actionBar = getSupportActionBar();    //ActionBar actionBar = getActionBar();    actionBar.hide();    //去掉Activity上面的状态栏    getWindow().setFlags(WindowManager.LayoutParams. FLAG_FULLSCREEN , WindowManager.LayoutParams. FLAG_FULLSCREEN);    hand.sendEmptyMessageDelayed(0,0);}public void btn(View v){    hand.removeCallbacksAndMessages(null);    Intent inte=new Intent(MainActivity.this,Main2Activity.class);    startActivity(inte);    finish();}