报警挂起报警不会取消 [英] Alarm Pending Alarm doesn't cancel

问题描述

我已经经历了很多的问题和答案的StackOverflow阅读，其中许多只强调对 .cancel（）和特殊唯一的ID。不过，现在无论我有多少次尝试，我只是无法取消它。

---

我的唯一的ID

最终静态INT RQS_1 = 1337;

---

我setAlarm功能。 pickTime是当前活动，并且timesUp，是另一个服务类，显示敬酒时，时间到了。

 意向意图=新的意图（pickTime.this，timesUp.class）;
PendingIntent timesUpIntent = PendingIntent.getService（pickTime.this，RQS_1，意向，0）;
AlarmManager alarmManager =（AlarmManager）getSystemService（Context.ALARM_SERVICE）;
alarmManager.set（AlarmManager.RTC_WAKEUP，targetCal.getTimeInMillis（），
                 timesUpIntent）;
alarmManager.set（AlarmManager.RTC_WAKEUP，targetCal.getTimeInMillis（），timesUpIntent）;
 

---

我的cancelAlarm功能

 意向意图=新的意图（这一点，pickTime.class）;
PendingIntent timesUpIntent = PendingIntent.getBroadcast（这一点，RQS_1，意向，0）;
        AlarmManager alarmManager =（AlarmManager）getSystemService（Context.ALARM_SERVICE）;
        如果（timesUpIntent！= NULL）{
            alarmManager.cancel（timesUpIntent）;
            timesUpIntent.cancel（）;
            Toast.makeText（getApplicationContext（），报警被取消，
                    Toast.LENGTH_SHORT）.show（）;
                    } 其他 {

            Toast.makeText（getApplicationContext（），无法停止定时器，
                    Toast.LENGTH_SHORT）.show（）;
        }
 

---

我的timesUp 服务

 公共类timesUp延伸服务{

    @覆盖
    公共无效的onCreate（）{

        // TODO自动生成方法存根

        Toast.makeText（这一点，MyAlarmService.onCreate（），Toast.LENGTH_LONG）
                。显示（）;

    }

    @覆盖
    公众的IBinder onBind（意向意图）{

        // TODO自动生成方法存根

        Toast.makeText（这一点，MyAlarmService.onBind（），Toast.LENGTH_LONG）
                。显示（）;

        返回null;

    }

    @覆盖
    公共无效的onDestroy（）{

        // TODO自动生成方法存根

        super.onDestroy（）;

        Toast.makeText（这一点，MyAlarmService.onDestroy（），Toast.LENGTH_LONG）
                。显示（）;

    }

    @覆盖
    公共无效ONSTART（意向意图，诠释startId）{

        // TODO自动生成方法存根

        super.onStart（意向，startId）;

        Toast.makeText（这一点，MyAlarmService.onStart（），Toast.LENGTH_LONG）
                。显示（）;

    }

    @覆盖
    公共布尔onUnbind（意向意图）{

        // TODO自动生成方法存根

        Toast.makeText（这一点，MyAlarmService.onUnbind（），Toast.LENGTH_LONG）
                。显示（）;

        返回super.onUnbind（意向）;

    }

}
 

解决方案

那么取消报警，你必须创建你在启动它创造相同的PendingIntent。 你这样做，而开始，

 意向意图=新的意图（pickTime.this，timesUp.class）;
PendingIntent timesUpIntent = PendingIntent
                                .getService（pickTime.this，RQS_1，意向，0）;
 

您在做什么，而取消，

 意向意图=新的意图（这一点，pickTime.class）;
PendingIntent timesUpIntent = PendingIntent
                                        .getBroadcast（这一点，RQS_1，意向，0）;
 

  

他们是一样的吗？

没有，他们不是一样的。您正在创建 PendingIntent 为服务启动，并试图取消与不同的 PendingIntent 广播。

的>

I've read through many questions and answers on Stackoverflow, and many of which just emphasize on the .cancel() and the special unique ID. However, now matter how many times I tried, I just can't cancel it.

---

My unique ID

final static int RQS_1 = 1337;

---

My setAlarm Function. pickTime is current Activity, and timesUp, is another Service class that shows a toast when the time is up.

Intent intent = new Intent(pickTime.this, timesUp.class);
PendingIntent timesUpIntent = PendingIntent.getService(pickTime.this, RQS_1, intent, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.set(AlarmManager.RTC_WAKEUP, targetCal.getTimeInMillis(),
                 timesUpIntent);
alarmManager.set(AlarmManager.RTC_WAKEUP, targetCal.getTimeInMillis(), timesUpIntent);

---

My cancelAlarm function

Intent intent = new Intent(this, pickTime.class);
PendingIntent timesUpIntent = PendingIntent.getBroadcast(this, RQS_1, intent, 0);
        AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
        if (timesUpIntent != null) {
            alarmManager.cancel(timesUpIntent);
            timesUpIntent.cancel();
            Toast.makeText(getApplicationContext(), "Alarm is cancelled",
                    Toast.LENGTH_SHORT).show();
                    } else {

            Toast.makeText(getApplicationContext(), "Unable to stop timer",
                    Toast.LENGTH_SHORT).show();
        }

---

My timesUp Service

public class timesUp extends Service {

    @Override
    public void onCreate() {

        // TODO Auto-generated method stub

        Toast.makeText(this, "MyAlarmService.onCreate()", Toast.LENGTH_LONG)
                .show();

    }

    @Override
    public IBinder onBind(Intent intent) {

        // TODO Auto-generated method stub

        Toast.makeText(this, "MyAlarmService.onBind()", Toast.LENGTH_LONG)
                .show();

        return null;

    }

    @Override
    public void onDestroy() {

        // TODO Auto-generated method stub

        super.onDestroy();

        Toast.makeText(this, "MyAlarmService.onDestroy()", Toast.LENGTH_LONG)
                .show();

    }

    @Override
    public void onStart(Intent intent, int startId) {

        // TODO Auto-generated method stub

        super.onStart(intent, startId);

        Toast.makeText(this, "MyAlarmService.onStart()", Toast.LENGTH_LONG)
                .show();

    }

    @Override
    public boolean onUnbind(Intent intent) {

        // TODO Auto-generated method stub

        Toast.makeText(this, "MyAlarmService.onUnbind()", Toast.LENGTH_LONG)
                .show();

        return super.onUnbind(intent);

    }

}

解决方案

Well for cancelling Alarm you have to create the same PendingIntent that you created while starting it. You are doing while starting,

Intent intent = new Intent(pickTime.this, timesUp.class);
PendingIntent timesUpIntent = PendingIntent
                                .getService(pickTime.this, RQS_1, intent, 0);

You are doing while cancelling,

Intent intent = new Intent(this, pickTime.class);
PendingIntent timesUpIntent = PendingIntent
                                        .getBroadcast(this, RQS_1, intent, 0);

Are they same?

No, they are not same. You are creating PendingIntent for Service to start and trying to cancel with different PendingIntent of BroadCast.

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