停止闹钟在另一个活动中响起 - android

Posted 2023-02-25

【中文标题】停止闹钟在另一个活动中响起 - android

【英文标题】：stop alarm from ringing in another activity - android

【发布时间】：2012-12-04 21:02:13

【问题描述】：

谁能教我如何在我的代码中阻止闹钟响起。我有什么方法可以阻止其他活动发出警报吗？因为，到目前为止，即使我按下了关闭按钮，警报也会一直响起。

alertDialogBuilder.setTitle("Alarm");

            alertDialogBuilder
            .setMessage("Stop Alarm")
            .setCancelable(false)
            .setPositiveButton("Dismiss",new DialogInterface.OnClickListener() 
                public void onClick(DialogInterface dialog,int id) 
                    eReceiver = new EAlarmReceiver();
                    Ringtone r = eReceiver.ringAlarm(context);
                    r.stop();
                    Toast.makeText(context.getApplicationContext(), "Alarm Stopped", Toast.LENGTH_LONG).show();
                    Intent openInterface = new Intent("proj.receiver.RECEIVERINTERFACE");
                    openInterface.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
                    context.startActivity(openInterface);
                
            );
            // create alert dialog
            AlertDialog alertDialog = alertDialogBuilder.create();
            // show it
            alertDialog.show();
// end oncreate()

这里是我开始闹钟的地方

public void onReceive(Context context, Intent intent) 
    // TODO Auto-generated method stub
    Bundle bundle = intent.getExtras(); 
    Object[] pdusObj = (Object[]) bundle.get("pdus"); 
    SmsMessage[] messages = new SmsMessage[pdusObj.length]; 
    for (int i = 0; i<pdusObj.length; i++) 
     
            messages[i] = SmsMessage.createFromPdu ((byte[]) 
            pdusObj[i]); 
            sender = messages[i].getOriginatingAddress();
     

    for (SmsMessage msg : messages) 
        if (msg.getMessageBody().contains("firealert")) 
            ringAlarm(context);
            Intent openStopAlarm = new Intent("proj.receiver.STOPALARM");
            openStopAlarm.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            context.startActivity(openStopAlarm);

        //end if
    //end for
// end onreceive

public Ringtone ringAlarm(Context context)

     Uri alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
     if(alert == null)
         // alert is null, using backup
         alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
         if(alert == null)  // I can't see this ever being null (as always have a default notification) but just incase
             // alert backup is null, using 2nd backup
             alert = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_RINGTONE);               
         
     
     Ringtone r = RingtoneManager.getRingtone(context.getApplicationContext(), alert);
     AudioManager audioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
     int maxVolumeAlarm = audioManager.getStreamMaxVolume(AudioManager.STREAM_ALARM);
     //int maxVolumeRing = audioManager.getStreamMaxVolume(AudioManager.STREAM_RING);
     audioManager.setStreamVolume(AudioManager.STREAM_ALARM, maxVolumeAlarm,AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
     //audioManager.setStreamVolume(AudioManager.STREAM_RING, maxVolumeRing,AudioManager.FLAG_REMOVE_SOUND_AND_VIBRATE);
     r.play();
        Toast.makeText(context.getApplicationContext(), "alarm started", Toast.LENGTH_LONG).show();
        return r;

//end ringAlarm()

【参考方案1】：

在 BroadcastReceiver 中声明的 Ringtone r 值与您在 Activity 中定义的值不同，您必须做一些事情，使 r 变量在您的应用程序中具有更大的范围：

您可以将 r 变量定义为

static Ringtone;

在您的广播接收器中，然后在 onReceive() 方法中为其赋值，然后从您的活动中调用该变量，只需将新的 r 变量声明为如下：

Ringtone r=yourpackge.Your_BroadcastReceiver_Class.r

然后调用

r.stop();