Question

我的应用程序在他的服务中有24小时的countDown计时器。即使用户离开应用，也可以在TextView显示时间。

在服务上，我把一个int数= 5184000.这是24小时转换为毫秒;

问题：

TextView请勿在{{1}}显示时间。
我希望当计时器等于00:00:00，计时器重置且新时间等于23:59:59。

MainActiviy：

Activity

服务

public class MainActivity extends Activity {

TextView tv;
BroadcastReceiver broad;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    tv = (TextView) findViewById(R.id.textView1);

    Intent intent = new Intent(this, MyService.class);
    startService(intent);

    registerReceiver(broad, new IntentFilter(MyService.BROADCAST_ACTION));


    broad = new BroadcastReceiver() {
        @Override
        public void onReceive(Context context, Intent intent) {

            Intent intent1 = getIntent();
            Bundle bundle = intent1.getExtras();
            if (bundle != null) {
                int data = bundle.getInt("DDDD");
                tv.setText(data);
            } else {
                tv.setText("00:00:00");
            }
        }

     };
}

XML：

public class MyService extends Service {

CountDownTimer cdt = null;
Intent intent1;
int h = 5184000;

public static final String BROADCAST_ACTION = "com.example.service";


@Override
public void onCreate() {
    super.onCreate();

}

@Override
public void onDestroy() {

    cdt.cancel();
    Log.i("DDD", "Timer cancelled");
    super.onDestroy();
}

@Override
public int onStartCommand(Intent intent, int flags, int startId) {



    Log.i("TIME", "Starting timer...");

    cdt = new CountDownTimer(h, 1000) {
        @Override
        public void onTick(long millisUntilFinished) {

            Log.i("TIME", "secondes: " + millisUntilFinished);

            intent1 = new Intent(BROADCAST_ACTION);
            intent1.putExtra("T", h);
            sendBroadcast(intent1);

        }

        @Override
        public void onFinish() {
            Log.i("TIME", "Timer finished");
        }
    };

    cdt.start();

    return super.onStartCommand(intent, flags, startId);
}

@Override
public IBinder onBind(Intent arg0) {
    return null;
 }
}

Answer 1

您可以使用Alarm Manager。

查看以下AlarmManager的链接。

AlarmManager

Scheduling Repeating Alarms

Android：如何获取int值表单服务并在文本View中设置活动

1 个答案: