Question

我知道有很多关于此问题的帖子。我已经尝试了所有。这是我执行的步骤。

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。所以这就是我所做的，但是没有用。

第二，有人说我可以删除频道，所以我也使用这段代码来做到这一点

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。

这是我在尝试使用的所有解决方案中使用的代码

 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

我猜您使用的使用类型错误，请将audioAttributes的使用方式修改为USAGE_NOTIFICATION

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

来自官方doc：

USAGE_NOTIFICATION：用法为通知时使用的用法值。

Answer 2

您需要使用音频属性，还需要定义具有权限的铃声URI。

因此，我们首先定义铃声URI：

Uri ringtoneUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
boolean vibrate = true;
long[] vibratePattern = new long[]{0L, 1000L};



public constructor(){
 notificationBuilder = new NotificationCompat.Builder(mContext, app.getAppContext().getString(R.string.default_notification_channel_id));
        mNotifyManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
        mContext.grantUriPermission("com.android.systemui", ringtoneUri, Intent.FLAG_GRANT_READ_URI_PERMISSION);
}
 public void showNotificationNormal(String notificationTitle, String notificationBody, Intent intent) {
    String id = mContext.getString(R.string.default_notification_channel_id);
    PendingIntent lowIntent = PendingIntent.getActivity(mContext, 100, intent, PendingIntent.FLAG_CANCEL_CURRENT);
    NotificationCompat.Builder notificationBuilder = new NotificationCompat.Builder(mContext, id);
    NotificationManager mNotifyManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        CharSequence name = mContext.getString(R.string.default_notification_channel_name);
        String description = mContext.getString(R.string.default_notification_channel_description); //user visible
        int importance = NotificationManager.IMPORTANCE_HIGH;

        AudioAttributes att = new AudioAttributes.Builder()
                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                .setContentType(AudioAttributes.CONTENT_TYPE_SONIFICATION)
                .build();

        NotificationChannel mChannel = new NotificationChannel(id, name, importance);
        mChannel.setDescription(description);
        mChannel.enableLights(true);
        mChannel.enableVibration(vibrate);
        mChannel.setVibrationPattern(vibratePattern);
        mChannel.setLightColor(Color.RED);
        mChannel.setSound(ringtoneUri, att);
        mChannel.setBypassDnd(true);
        mChannel.setLockscreenVisibility(NotificationCompat.VISIBILITY_PUBLIC);
        mChannel.setShowBadge(true);

        if (mNotifyManager != null) {
            mNotifyManager.createNotificationChannel(mChannel);
        }

        notificationBuilder
                .setSmallIcon(R.mipmap.ic_launcher)
                .setPriority(NotificationCompat.PRIORITY_MAX)
                .setCategory(NotificationCompat.CATEGORY_MESSAGE)
                .setVibrate(vibratePattern)
                .setSound(ringtoneUri)
                .setColor(ContextCompat.getColor(mContext, R.color.colorPrimary))
                .setContentTitle(notificationTitle)
                .setStyle(new NotificationCompat.BigTextStyle().bigText(notificationBody))
                .setAutoCancel(true)
                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
                .setContentIntent(lowIntent);

    } else {
        notificationBuilder.setContentTitle(notificationTitle)
                .setSmallIcon(R.mipmap.ic_launcher)
                .setPriority(NotificationCompat.PRIORITY_MAX)
                .setCategory(NotificationCompat.CATEGORY_MESSAGE)
                .setVibrate(vibratePattern)
                .setSound(ringtoneUri)
                .setStyle(new NotificationCompat.BigTextStyle().bigText(notificationBody))
                .setColor(ContextCompat.getColor(mContext, R.color.colorPrimary))
                .setAutoCancel(true)
                .setVisibility(NotificationCompat.VISIBILITY_PUBLIC)
                .setContentIntent(lowIntent);

    }

    notificationBuilder.setContentText(notificationBody);

    if (mNotifyManager != null) {
        mNotifyManager.notify(AppConstants.NOTIFY_ID, notificationBuilder.build());
    }
}

Answer 3

首先，我不知道您的通知不适用于 Oreo ， Pie 或以下 N 以下的设备。

For your question StackOver Flow have lots of answer.

现在根据您的问题，您只丢失了一行代码，但是由于您尚未粘贴，因此此处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，它刚刚满足您的所有通知要求。（完整的自定义通知）

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，我正在粘贴通知代码，该代码将在 OREO 设备之上或之上运行。

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.
}

没有图像的通知

    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，我提到过要注意的是我在一行中特别注意要设置带通知的声音Uri。您可以这样描述。

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

但是它不会为您播放声音，因为在将Oreo设备设置为优先级别后，没有将声音设置为

。

因此，如我所描述的，对于声音始终使用代码。

android通知频道声音不起作用

3 个答案: