Timer计时器实现倒计时跳转

来源：互联网发布：刷黄金卷轴软件编辑：程序博客网时间：2024/04/30 02:51
    /**     * android中的计时器：----Timer     * 1:timer+handler     * 2:     *     */    public class MainActivity extends Activity {        private TextView text_time;        int times = 5;        private Handler handler = new Handler() {            public void handleMessage(android.os.Message msg) {                if (msg.what == 1) {                    int time = (Integer) msg.obj;                    //判断时间是否符合逻辑                    if (time>0) {                        text_time.setText(time + "s后跳转");                    }else {                        //直接进行跳转                        Intent intent = new Intent(MainActivity.this, SecondActivity.class);                        startActivity(intent);                        timer.cancel();                        finish();                    }                }            };        };        private Timer timer;   @Override        protected void onCreate(Bundle savedInstanceState) {            super.onCreate(savedInstanceState);            setContentView(R.layout.activity_main);            // 找控件            text_time = (TextView) findViewById(R.id.text_time);            timer = new Timer();            // timer.schedule(task, when)//在指定时间执行时间任务            // timer.schedule(task, delay)//延时N秒后执行时间任务            // timer.schedule(task, when, period);//在指定的时间，间隔M秒执行一次任务            // timer.schedule(task, delay, period);//延时N秒后，间隔M秒执行一次任务            TimerTask task = new TimerTask() {                @Override                public void run() {                    // 时间需要 --；                    times--;                    // 发送消息                    Message msg = Message.obtain();                    msg.obj = times;                    msg.what = 1;                    handler.sendMessage(msg);                }            };            timer.schedule(task, 1000, 1000);        }        public void tiaoZhuan(View view) {            //直接进行跳转            Intent intent = new Intent(MainActivity.this, SecondActivity.class);            startActivity(intent);            timer.cancel();            finish();        }    }}
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