o android通知聲音沒有播放

Question

這是我的通知和通知顯示但不播放聲音的代碼請幫我識別我的代碼中的錯誤，我們是否需要任何播放聲音，振動通知的權限？

Uri alarmSound = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_ALARM);
            AudioAttributes attributes = new AudioAttributes.Builder()
                    .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                    .build();
            NotificationManager mNotificationManager = (NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
            String id = "my_channel_01";
            CharSequence name = "oreiomilla";
            String description ="i love me";
            int importance = NotificationManager.IMPORTANCE_HIGH; 
            NotificationChannel mChannel = new NotificationChannel(id, name, importance); 
            mChannel.setDescription(description); 
            mChannel.enableLights(true); 
            mChannel.setLightColor(Color.RED);
            mChannel .setSound(alarmSound,attributes);
            mChannel.enableVibration(true);
            mChannel.setVibrationPattern(new long[]{100, 200, 300, 400, 500, 400, 300, 200, 400}); 
            mNotificationManager.createNotificationChannel(mChannel); 
            int notifyID = 1; 
            String CHANNEL_ID = "my_channel_01";

            Intent intent = new Intent(getApplicationContext(), MainActivity.class);
            PendingIntent pIntent = PendingIntent.getActivity(getApplicationContext(), 0, intent, 0);
            Notification notification = new Notification.Builder(MainActivity.this)
                    .setContentTitle("New Message")
                    .setContentText("You've received new messages. "+ct)
                    .setSmallIcon(R.drawable.ic_app_icon)
                    .setChannelId(CHANNEL_ID)   .setTicker("Showing button notification") //
                    .addAction(android.R.drawable.ic_dialog_alert, "Visit", pIntent) // accept notification button
                    .addAction(android.R.drawable.ic_dialog_email, "ignore", pIntent)
                    .build();
            mNotificationManager.notify(notifyID, notification);

Answer 1

要在Oreo中為聲音設置聲音，您必須在NotificationChannel上設置聲音，而不是在Notification Builder本身設置聲音。 您可以按如下方式執行此操作

Uri sound = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://" + context.getPackageName() + "/" + R.raw.notification_mp3);

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

        NotificationChannel mChannel = new NotificationChannel("YOUR_CHANNEL_ID",
            "YOUR CHANNEL NAME",
            NotificationManager.IMPORTANCE_DEFAULT)

        AudioAttributes attributes = new AudioAttributes.Builder()
                .setUsage(AudioAttributes.USAGE_NOTIFICATION)
                .build();

        NotificationChannel mChannel = new NotificationChannel(CHANNEL_ID, 
                context.getString(R.string.app_name),
                NotificationManager.IMPORTANCE_HIGH);

        // Configure the notification channel.
        mChannel.setDescription(msg);
        mChannel.enableLights(true);
        mChannel.enableVibration(true);
        mChannel.setSound(sound, attributes); // This is IMPORTANT


        if (mNotificationManager != null)
            mNotificationManager.createNotificationChannel(mChannel);
    }

Answer 2

試試這個它會對你有用。

private void BigTextNotificationForDays(Context context, String Message, String Author) {
            Intent resultIntent = new Intent(context, SplashActivity.class);
            resultIntent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TASK);
            PendingIntent pendingIntent = PendingIntent.getActivity(context, (int) Calendar.getInstance().getTimeInMillis(), resultIntent, PendingIntent.FLAG_ONE_SHOT);

            //To set large icon in notification
            //  Bitmap icon1 = BitmapFactory.decodeResource(getResources(), R.drawable.big_image);

            //Assign inbox style notification
            NotificationCompat.BigTextStyle bigText = new NotificationCompat.BigTextStyle();
            bigText.bigText(Message);
            bigText.setBigContentTitle(context.getString(R.string.app_name));
            bigText.setSummaryText(Author);
            //build notification
            NotificationCompat.Builder mBuilder = new NotificationCompat.Builder(context,createNotificationChannel(context))
                    .setSmallIcon(R.drawable.ic_notification)
                    .setContentTitle(context.getString(R.string.app_name))
                    .setContentText(Message)
                    .setStyle(bigText)
                    .setLargeIcon(icon)
                    .setColor(ContextCompat.getColor(context, R.color.colorPrimary))
                    .setVibrate(new long[]{1000, 1000})
                    .setSound(Settings.System.DEFAULT_NOTIFICATION_URI)
                    .setPriority(Notification.PRIORITY_HIGH)
                    .setAutoCancel(true)
                    .setContentIntent(pendingIntent);
            //.setOngoing(true);

            // Gets an instance of the LocalNotificationManager service
            NotificationManager mNotificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);

            //to post your notification to the notification bar
            mNotificationManager.notify(3730, mBuilder.build()); // (int) System.currentTimeMillis() set instead of id. if at a time more notification require
        }


public static String createNotificationChannel(Context context) {

        // NotificationChannels are required for Notifications on O (API 26) and above.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {

            // The id of the channel.
            String channelId = "Channel_id";

            // The user-visible name of the channel.
            CharSequence channelName = "Application_name";
            // The user-visible description of the channel.
            String channelDescription = "Application_name Alert";
            int channelImportance = NotificationManager.IMPORTANCE_DEFAULT;
            boolean channelEnableVibrate = true;
//            int channelLockscreenVisibility = Notification.;

            // Initializes NotificationChannel.
            NotificationChannel notificationChannel = new NotificationChannel(channelId, channelName, channelImportance);
            notificationChannel.setDescription(channelDescription);
            notificationChannel.enableVibration(channelEnableVibrate);
//            notificationChannel.setLockscreenVisibility(channelLockscreenVisibility);

            // Adds NotificationChannel to system. Attempting to create an existing notification
            // channel with its original values performs no operation, so it's safe to perform the
            // below sequence.
            NotificationManager notificationManager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
            assert notificationManager != null;
            notificationManager.createNotificationChannel(notificationChannel);

            return channelId;
        } else {
            // Returns null for pre-O (26) devices.
            return null;
        }
    }