Android：AlarmManager“缺少对unregisterReceiver（）的调用？”按下后退按钮时

Question

即使应用程序在后台，我也会尝试安排闹钟运行。如果应用程序位于前台，则下面的代码运行正常。但是，只要我按下后退按钮，我就会得到一个＆＃34;泄漏的Intent Receiver错误＆＃34;暗示我错过了对unregisterReceiver（）的调用。我尝试将unregisterReceiver(receiver)添加到onStop()和onPause()，但仍然会遇到相同的错误。非常感谢任何帮助！

另外一个附带问题，如果我最终弄清楚如何取消注册接收器，那么会阻止我的警报触发吗？感谢。

    // Alarm
public void SetAlarm()
{
    BroadcastReceiver receiver = new BroadcastReceiver() {
        @Override public void onReceive( Context context, Intent _ )
        {
            // code to run when alarm hits
            context.unregisterReceiver( this ); // this == BroadcastReceiver, not Activity
        }
    };

    this.registerReceiver( receiver, new IntentFilter("com.blah.blah.somemessage") );
    PendingIntent pintent = PendingIntent.getBroadcast( this, 0, new Intent("com.blah.blah.somemessage"), 0 );
    AlarmManager manager = (AlarmManager)(this.getSystemService( Context.ALARM_SERVICE ));

    // set alarm to fire 5 sec (1000*5) from now (SystemClock.elapsedRealtime())
    manager.set( AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime() + 1000*10, pintent );
}