Android通知频道声音不起作用

Question

我知道有很多关于这个问题的帖子。我已经尝试了所有。这是我所做的步骤。

首先，我发现创建频道后就无法更改。唯一的方法是重新安装该应用程序。这就是我所做的，但没有奏效。

其次，有人说我可以删除频道，所以我也使用这段代码

val channelList = mNotificationManager.notificationChannels
        var i = 0
        while (channelList != null && i < channelList.size) {
            Log.d("channelList","channel ID is ${channelList[i].id}")
            //mNotificationManager.deleteNotificationChannel(channelList[i].id)
            i++
        }

然后在删除后重新创建频道。

第三，我尝试使用新的通知频道，但是每次使用新频道时，都会出现错误。

这是我尝试使用的所有解决方案的代码

 val audioAttributes = AudioAttributes.Builder()
                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                .setUsage(AudioAttributes.USAGE_ALARM)
                .build()


        val importance = NotificationManager.IMPORTANCE_DEFAULT

        val channelList = mNotificationManager.notificationChannels
        var i = 0
        while (channelList != null && i < channelList.size) {
            Log.d("channelList","channel ID is ${channelList[i].id}")
            mNotificationManager.deleteNotificationChannel(channelList[i].id)
            i++
        }

        Log.d("isnotification"," is it needed $isNotificationSoundNeeded importance is $importance")
        val mChannel = NotificationChannel(CHANNEL_ID, appName,  NotificationManager.IMPORTANCE_HIGH)
        mChannel.setShowBadge(false)
        mChannel.setSound(notifSound, audioAttributes)



        val mChannelnew = NotificationChannel(CHANNEL_ID2, appName,  NotificationManager.IMPORTANCE_DEFAULT)
        mChannelnew.setShowBadge(false)
        mChannelnew.setSound(notifSound, audioAttributes)




        mNotificationManager.createNotificationChannel(mChannel)

我想念什么？有任何想法吗？谢谢

更新：这是notifsound的代码

val notifSound = Uri.parse("android.resource://" + packageName + "/" + R.raw.unconvinced)

Answer 1

首先，我不知道您的通知在Oreo、Pie或低于N 的设备上不起作用。

For your question StackOver Flow have lots of answer.

现在根据您的问题您只缺少一行代码但是由于您尚未粘贴，因此无法检查您的整个通知代码。

在这里，我正在粘贴一个通知代码，它只是满足您的所有通知要求。（完全自定义通知）

带有图像的通知

public void createNotificationWithImage(String title,String message ,Bitmap image) {
PendingIntent resultPendingIntent = PendingIntent.getActivity(mContext,
            0 /* Request code */, resultIntent,
            PendingIntent.FLAG_UPDATE_CURRENT);

// Custom Sound Uri

Uri soundUri = Uri.parse("android.resource://" + mContext.getApplicationContext()
                .getPackageName() + "/" + R.raw.sniper_gun);

 mBuilder = new NotificationCompat.Builder(mContext);
 mBuilder.setSmallIcon(R.mipmap.notification_icon);

 // Pay attention on below line here (NOTE)
 mBuilder.setSound(soundUri);

if (image!=null) {
            mBuilder.setContentTitle(title)
                    .setContentText(message)
                    .setAutoCancel(false)
                    .setLargeIcon(image)
                    .setStyle(new NotificationCompat.BigPictureStyle()
                            .bigPicture(image).setSummaryText(message).bigLargeIcon(null))
                    .setColor(Color.GREEN)
                    .setContentIntent(resultPendingIntent);
        }
mNotificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);

现在我正在粘贴可以在上面或在OREO设备上工作的通知代码。

if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
        int importance = NotificationManager.IMPORTANCE_HIGH;
        NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "NOTIFICATION_CHANNEL_NAME", importance);
        notificationChannel.enableLights(true);
        notificationChannel.setLightColor(Color.RED);
        notificationChannel.enableVibration(true);
        notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});

        if(soundUri != null){
            AudioAttributes audioAttributes = new AudioAttributes.Builder()
                    .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                    .setUsage(AudioAttributes.USAGE_ALARM)
                    .build();
            notificationChannel.setSound(soundUri,audioAttributes);
        }

        assert mNotificationManager != null;
        mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
        mNotificationManager.createNotificationChannel(notificationChannel);
    }
    assert mNotificationManager != null;
    mNotificationManager.notify(0 /* Request Code */, mBuilder.build());


below middle braces use for close your method.
}

无图像通知

    public void createNotification(String title,String message){
    PendingIntent resultPendingIntent = PendingIntent.getActivity(mContext,
                0 /* Request code */, resultIntent,
                PendingIntent.FLAG_UPDATE_CURRENT);

        Uri soundUri = Uri.parse("android.resource://" + mContext.getApplicationContext()
                .getPackageName() + "/" + R.raw.sniper_gun);



        mBuilder = new NotificationCompat.Builder(mContext);
        mBuilder.setSmallIcon(R.mipmap.notification_icon);
        mBuilder.setLargeIcon(BitmapFactory.decodeResource(mContext.getResources(),
                R.mipmap.icon));
        mBuilder.setSound(soundUri);
        mBuilder.setContentTitle(title)
                .setContentText(message)
                .setAutoCancel(false)
                .setColor(Color.GREEN)
                .setStyle(new NotificationCompat.BigTextStyle())
                .setContentIntent(resultPendingIntent);

        mNotificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);

        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {
            int importance = NotificationManager.IMPORTANCE_HIGH;
            NotificationChannel notificationChannel = new NotificationChannel(NOTIFICATION_CHANNEL_ID, "NOTIFICATION_CHANNEL_NAME", importance);
            notificationChannel.enableLights(true);
            notificationChannel.setLightColor(Color.RED);
            notificationChannel.enableVibration(true);
            notificationChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400});
//            notificationChannel.s

            if(soundUri != null){
                AudioAttributes audioAttributes = new AudioAttributes.Builder()
                        .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                        .setUsage(AudioAttributes.USAGE_ALARM)
                        .build();
                notificationChannel.setSound(soundUri,audioAttributes);
            }

            assert mNotificationManager != null;
            mBuilder.setChannelId(NOTIFICATION_CHANNEL_ID);
            mNotificationManager.createNotificationChannel(notificationChannel);

        }

        assert mNotificationManager != null;
        mNotificationManager.notify(0 /* Request Code */, mBuilder.build());

    }

注意：在我的代码中，我提到要注意我描述要使用通知设置声音 Uri 的特定行。你可以这样描述。

mBuilder.setContentTitle(title)
            .setContentText(message)
            .setAutoCancel(false)
            .setSound(soundUri)
            .setColor(Color.GREEN)
            .setStyle(new NotificationCompat.BigTextStyle())
            .setContentIntent(resultPendingIntent);

但它不会为您播放声音，因为在 Oreo 设备未将声音设置为优先级之后。

所以总是像我描述的那样使用声音代码。