两个Activity加耗时操作跳转

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private TextView textView;private final Handler handler =new Handler(){    public void handleMessage(android.os.Message msg) {        if(msg.what== 0){            //倒计时完毕进行跳转            Intent intent =new Intent(MainActivity.this, MyActivity.class);            startActivity(intent);            MainActivity.this.finish();        }        textView.setText(null);    };};@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main);    //获取资源ID    textView = (TextView) findViewById(R.id.hand);    //创建一个线程    new Thread(){        public void run() {            try {                for (int i = 1; i >0; i--) {                    sleep(3000);                    i--;                    handler.sendEmptyMessage(i);                }            } catch (Exception e) {                e.printStackTrace();            }        };    }.start();}

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