Question

我现在有3个通知我有任务每5分钟添加一次通知，比如循环或功能我不知道。如何可以每5分钟自动添加通知4-5-6-7-8 -...

主要活动..！

public class MainActivity extends AppCompatActivity {


Button button;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    button = (Button) findViewById(R.id.btn1);
    button.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            final Calendar calendar = Calendar.getInstance();

            Intent intent = new Intent(getApplicationContext(), AlertReceiver.class);


            final PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);
            final PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(), 101, intent, PendingIntent.FLAG_UPDATE_CURRENT);
            final PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(), 102, intent, PendingIntent.FLAG_UPDATE_CURRENT);

            final AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
            final AlarmManager alarmManager1 = (AlarmManager) getSystemService(ALARM_SERVICE);
            final AlarmManager alarmManager2 = (AlarmManager) getSystemService(ALARM_SERVICE);

            alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent);
            alarmManager1.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent1);
            alarmManager2.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent2);


        }
    });

}


protected void onStart() {

    Intent intent = new Intent(this,AlertReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.cancel(pendingIntent);
    alarmManager.cancel(pendingIntent1);
    alarmManager.cancel(pendingIntent2);
    super.onStart();
}


@Override
protected void onPause() {

    Intent intent = new Intent(this,AlertReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.cancel(pendingIntent);
    alarmManager.cancel(pendingIntent1);
    alarmManager.cancel(pendingIntent2);
    super.onPause();
}

@Override
protected void onResume() {

    Intent intent = new Intent(this,AlertReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.cancel(pendingIntent);
    alarmManager.cancel(pendingIntent1);
    alarmManager.cancel(pendingIntent2);
    super.onResume();
}

@Override
protected void onStop() {

    Calendar calendar = Calendar.getInstance();
    Intent intent = new Intent(getApplicationContext(), AlertReceiver.class);
   // intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(), 101, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(), 102, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    AlarmManager alarmManager1 = (AlarmManager) getSystemService(ALARM_SERVICE);
    AlarmManager alarmManager2 = (AlarmManager) getSystemService(ALARM_SERVICE);

    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent);
    alarmManager1.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent1);
    alarmManager2.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent2);

    super.onStop();
}

@Override
protected void onDestroy() {
    Calendar calendar = Calendar.getInstance();
    Intent intent = new Intent(getApplicationContext(), AlertReceiver.class);
 //   intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(), 100, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(), 101, intent, PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(), 102, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager) getSystemService(ALARM_SERVICE);
    AlarmManager alarmManager1 = (AlarmManager) getSystemService(ALARM_SERVICE);
    AlarmManager alarmManager2 = (AlarmManager) getSystemService(ALARM_SERVICE);

    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent);
    alarmManager1.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent1);
    alarmManager2.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent2);

    super.onDestroy();
}

Recivier.class

public class AlertReceiver extends BroadcastReceiver {



@Override
public void onReceive(final Context context, Intent intent) {
     NotificationManager notificationManager = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);
    final Intent repeating_intent = new Intent(context,Activity12.class);
//    repeating_intent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);

    PendingIntent pendingIntent = PendingIntent.getActivity(context,100,repeating_intent,PendingIntent.FLAG_UPDATE_CURRENT);
  NotificationCompat.Builder builder = new NotificationCompat.Builder(context).setContentIntent(pendingIntent)
            .setSmallIcon(R.drawable.ic_launcher)
            .setContentTitle("AAA")
            .setContentText("BBB");
          builder.setAutoCancel(true);


        notificationManager.notify(100,builder.build());
    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {

            PendingIntent pendingIntent1 = PendingIntent.getActivity(context,101,repeating_intent,PendingIntent.FLAG_UPDATE_CURRENT);
            NotificationCompat.Builder builder1 = new NotificationCompat.Builder(context).setContentIntent(pendingIntent1)
                    .setSmallIcon(R.drawable.ic_launcher)
                    .setContentTitle("CCC")
                    .setContentText("DDD");

            builder1.setAutoCancel(true);
            NotificationManager notificationManager1 = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);

            notificationManager1.notify(101,builder1.build());            }
    },1* 60 * 1000);
    new Handler().postDelayed(new Runnable() {
        @Override
        public void run() {
            PendingIntent pendingIntent2 = PendingIntent.getActivity(context,102,repeating_intent,PendingIntent.FLAG_UPDATE_CURRENT);
            NotificationCompat.Builder builder2 = new NotificationCompat.Builder(context).setContentIntent(pendingIntent2)
                    .setSmallIcon(R.drawable.ic_launcher)
                    .setContentTitle("EEE")
                    .setContentText("FFF");
            builder2.setAutoCancel(true);

            NotificationManager notificationManager2 = (NotificationManager)context.getSystemService(Context.NOTIFICATION_SERVICE);

            notificationManager2.notify(102,builder2.build());
        }
    },2*60*1000);

点击通知时显示的活动。

public class Activity12 extends AppCompatActivity {



@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_12);

}


@Override
protected void onStart() {

    Intent intent = new Intent(this,AlertReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);


    alarmManager.cancel(pendingIntent);
    alarmManager.cancel(pendingIntent1);
    alarmManager.cancel(pendingIntent2);
    super.onStart();
}


@Override
protected void onPause() {

    Intent intent = new Intent(this,AlertReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.cancel(pendingIntent);
    alarmManager.cancel(pendingIntent1);
    alarmManager.cancel(pendingIntent2);
    super.onPause();
}


@Override
protected void onResume() {

    Intent intent = new Intent(this,AlertReceiver.class);
    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.cancel(pendingIntent);
    alarmManager.cancel(pendingIntent1);
    alarmManager.cancel(pendingIntent2);
    super.onResume();
}


@Override
protected void onStop() {

    Calendar calendar =Calendar.getInstance();

    Intent intent = new Intent (getApplicationContext(),AlertReceiver.class);
   // intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent1);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent2);

    super.onStop();
}

@Override
protected void onDestroy() {

    Calendar calendar =Calendar.getInstance();
    Intent intent = new Intent (getApplicationContext(),AlertReceiver.class);
 //   intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);

    PendingIntent pendingIntent = PendingIntent.getBroadcast(getApplicationContext(),100,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent1 = PendingIntent.getBroadcast(getApplicationContext(),101,intent,PendingIntent.FLAG_UPDATE_CURRENT);
    PendingIntent pendingIntent2 = PendingIntent.getBroadcast(getApplicationContext(),102,intent,PendingIntent.FLAG_UPDATE_CURRENT);

    AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent1);
    alarmManager.setRepeating(AlarmManager.RTC_WAKEUP, calendar.getTimeInMillis(), AlarmManager.INTERVAL_FIFTEEN_MINUTES , pendingIntent2);
    super.onDestroy();
}

}

Answer 1

您应该使用每5分钟后执行一次的后台服务

public class TimeService extends Service {
    // constant
    public static final long NOTIFY_INTERVAL = 10 * 1000; // 10 seconds

    // run on another Thread to avoid crash
    private Handler mHandler = new Handler();
    // timer handling
    private Timer mTimer = null;

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

    @Override
    public void onCreate() {
        // cancel if already existed
        if(mTimer != null) {
            mTimer.cancel();
        } else {
            // recreate new
            mTimer = new Timer();
        }
        // schedule task
        mTimer.scheduleAtFixedRate(new TimeDisplayTimerTask(), 0, NOTIFY_INTERVAL);
    }

    class TimeDisplayTimerTask extends TimerTask {

        @Override
        public void run() {
            // run on another thread
            mHandler.post(new Runnable() {

                @Override
                public void run() {
                    // Enter your notification code here to get notification after every 5 minutes
                    Toast.makeText(getApplicationContext(), getDateTime(),
                            Toast.LENGTH_SHORT).show();
                }

            });
        }

        private String getDateTime() {
            // get date time in custom format
            SimpleDateFormat sdf = new SimpleDateFormat("[yyyy/MM/dd - HH:mm:ss]");
            return sdf.format(new Date());
        }

    }

从Mainactivity调用服务

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

    startService(new Intent(this, TimeService.class));
}

在你的清单中加上这个

<service android:name=".TimeService"/>

Answer 2

使用ScheduledExecutorService，您可以在其中放置启动通知的代码。您需要提供有关应启动哪个通知的特定逻辑。您可以设置重复计划，如上面链接中的示例所示。

如何自动添加通知？

2 个答案: