java - 通知中添加的操作图标未显示

Question

我正在尝试为来电创建通知。为此，我在通知中添加了两个操作。仅显示我的操作文本。通知中不显示操作图标。 我想在“答案”附近添加图标并取消我在“通知”中添加为“添加操作”的图标。我添加了如下所示的操作图标，

NotificationCompat.Action answerAction = new NotificationCompat.Action.Builder(R.drawable.answer_call_icon, "Answer", pendingIntent).build();
            NotificationCompat.Action cancelAction = new NotificationCompat.Action.Builder(R.drawable.cancel, "Cancel", pendingIntent).build();

        NotificationCompat.Builder builder = new NotificationCompat.Builder(this, NOTIFICATION_CHANNEL_ID)
                .setLargeIcon((BitmapFactory.decodeResource(getResources(), R.drawable.call_logo)))
                .setContentTitle(intent.getStringExtra("Number"))
                .setSmallIcon(R.drawable.call_logo)
                .setContentIntent(pendingIntent)
                .setAutoCancel(true)
                .setFullScreenIntent(pendingIntent, true)
                .setCategory(NotificationCompat.CATEGORY_CALL)
                .addAction(answerAction)
                .addAction(cancelAction)
                .setPriority(NotificationCompat.PRIORITY_HIGH);
        NotificationManagerCompat nManager = NotificationManagerCompat.from(this);
        nManager.notify(2,builder.build());

还有一个查询， 以下是我的通知 channel ，

NotificationChannel   chan = new NotificationChannel(NOTIFICATION_CHANNEL_ID, channelName, NotificationManager.IMPORTANCE_HIGH);
            chan.setLightColor(Color.BLUE);
           chan.setLockscreenVisibility(Notification.FLAG_FOREGROUND_SERVICE);
            chan.setImportance(NotificationManager.IMPORTANCE_HIGH);
            chan.setSound(defaultRingToneUri,audioAttributes);
 chan.enableLights(true);
            chan.shouldShowLights();
            chan.setVibrationPattern(vibrate);
            chan.enableVibration(true);
            Context context=getApplicationContext();
            NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
            assert manager != null;
            manager.createNotificationChannel(chan);

接收通知时无法获取铃声。我设置声音的方式正确吗？ 有人请帮我解决这个问题... 2天前发布..但到目前为止还找不到解决方案。

Answer 1

根据 Notifications in Android N blog post :

Notification actions have also received a redesign and are now in a visually separate bar below the notification.

You’ll note that the icons are not present in the new notifications; instead more room is provided for the labels themselves in the constrained space of the notification shade. However, the notification action icons are still required and continue to be used on older versions of Android and on devices such as Android Wear.

因此，预计您不会看到与通知操作关联的图标。