Question

我正在我的应用程序中设置Firebase云消息传递，一切正常，但接收到通知时通知图标会显示为白色正方形。

我也尝试将builder.setSmallIcon更改为其他图标，我在AndroidManifest.xml中添加了用于Firebase消息传递default_notification_icon的资源图标

FcmMessagingService.java

private static int VIBRATION_TIME = 500; // in millisecond
private SharedPref sharedPref;

@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
    sharedPref = new SharedPref(this);
    if (sharedPref.getNotification()) {
        // play vibration
        if (sharedPref.getVibration()) {
            ((Vibrator) getSystemService(Context.VIBRATOR_SERVICE)).vibrate(VIBRATION_TIME);
        }
        RingtoneManager.getRingtone(this, Uri.parse(sharedPref.getRingtone())).play();

        if (remoteMessage.getData().size() > 0) {
            Map<String, String> data = remoteMessage.getData();
            FcmNotif fcmNotif = new FcmNotif();
            fcmNotif.setTitle(data.get("title"));
            fcmNotif.setContent(data.get("content"));
            fcmNotif.setPost_id(Integer.parseInt(data.get("post_id")));
            displayNotificationIntent(fcmNotif);
        }
    }
}

private void displayNotificationIntent(FcmNotif fcmNotif) {
    Intent intent = new Intent(this, ActivitySplash.class);
    if (fcmNotif.getPost_id() != -1) {
        intent = new Intent(this, ActivityPostDetails.class);
        Post post = new Post();
        post.title = fcmNotif.getTitle();
        post.id = fcmNotif.getPost_id();
        boolean from_notif = !ActivityMain.active;
        intent.putExtra(ActivityPostDetails.EXTRA_OBJC, post);
        intent.putExtra(ActivityPostDetails.EXTRA_NOTIF, from_notif);
    }
    PendingIntent pendingIntent = PendingIntent.getActivity(this, (int) System.currentTimeMillis(), intent, 0);

    Notification.Builder builder = new Notification.Builder(this);
    builder.setContentTitle(fcmNotif.getTitle());
    builder.setSmallIcon(R.drawable.ic_notification2);
    //builder.setSmallIcon(R.drawable.splash_icon);
    //builder.setSmallIcon(R.mipmap.ic_launcher);
    builder.setLargeIcon(BitmapFactory.decodeResource(this.getResources(),
         R.mipmap.ic_launcher));
    builder.setStyle(new Notification.BigTextStyle().bigText(fcmNotif.getContent()));
    builder.setContentText(fcmNotif.getContent());
    builder.setDefaults(Notification.DEFAULT_LIGHTS);

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
        builder.setPriority(Notification.PRIORITY_HIGH);
    }
    builder.setContentIntent(pendingIntent);
    builder.setAutoCancel(true);
    NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
    int unique_id = (int) System.currentTimeMillis();
    notificationManager.notify(unique_id, builder.build());
}

Output

Answer 1

您需要致电builder.setSmallIcon(getNotificationIcon())并确保图标背景应该是透明的，即R.mipmap.transparent，如果您的Build.VERSION.SDK_INT是LOLLIPOP或Build.VERSION_CODES.LOLLIPOP以上，否则可以使用您的应用程序图标

 private int getNotificationIcon()
 {
    boolean useWhiteIcon = (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP);
    return useWhiteIcon ? R.mipmap.transparent: R.mipmap.appicon;
 }

Answer 2

 Firebase 9.8.0 it is possible to change this icon, by adding info about this in Manifest:

 <meta-data
      android:name="com.google.firebase.messaging.default_notification_icon"
      android:resource="@drawable/ic_stat_ic_notification" />
 <meta-data
      android:name="com.google.firebase.messaging.default_notification_color"
      android:resource="@color/colorAccent" />

refer this

如何更改收到的通知的方形图标？

2 个答案: