android 利用hangler倒計時

android 利用hangler倒計時

上面一個編輯框輸入要倒計時的數宗喎?http://www.bkjia.com/kf/yidong/wp/" target="_blank" class="keylink">WPGJyIC8+DQq78cih0tS688/Uyr7U2s/Cw+a1xHRleHR2aWV3yc/D5jxiciAvPg0KteO797+qyryjrHRleHR2aWV3yc+1xMr919bW8Lz1PC9wPg0KPHByZSBjbGFzcz0="brush:java;">private TextView tvTime; private EditText inputTv; private Button btnHQ,btnBG,btnZT; //用來存放倒計時的數字 private int i; private Timer timer; private TimerTask task;public void onClick(View v) {switch (v.getId()) {case R.id.button1:String time = inputTv.getText().toString();tvTime.setText(time);i = Integer.parseInt(time);break;case R.id.button2:start();break;case R.id.button3:timer.cancel();break;}}

Handler mHandler = new Handler(){        public void handleMessage(android.os.Message msg) {            tvTime.setText(msg.arg1+"");                //等於零的時候不在自減            if(msg.arg1==0){                timer.cancel();            }else{            start();            }            };    };

private void start() {        timer = new Timer();        task = new TimerTask() {            @Override            public void run() {                i--;                Message msg = mHandler.obtainMessage();                //將i放入msg裡面                msg.arg1 = i;                mHandler.sendMessage(msg);            }        };        //一定要記得部署這個方法        timer.schedule(task, 1000);    }