Question

我正在从Firebase控制台推送通知。我能够轻松接收通知数据，并且通知也会出现，但是我想做的是更改通知的小图标和大图标。

我正在使用这两种方法，但似乎都没有用。我还尝试通过Vector使用res>New>Vector>Clip Art选项制作小图标。小图标既不会出现，大图标也不会出现，并且通知也无法展开。

MessagingService.kt

class MessagingService(): FirebaseMessagingService() {

  override fun onMessageReceived(p0: RemoteMessage ? ) {
    super.onMessageReceived(p0)
    showNotification(p0!!.notification!!.title!!, p0!!.notification!!.body!!)
  }

  fun showNotification(title: String, body: String) {
    val icon = BitmapFactory.decodeResource(resources,
      R.drawable.iphn)
    NotificationCompat.Builder(this, "MyNotifications")
      .setLargeIcon(icon)
      .setSmallIcon(R.drawable.ic_notif)
      .setContentTitle(title)
      .setContentText(body)
      .setStyle(NotificationCompat.BigPictureStyle()
        .bigPicture(icon)
        .bigLargeIcon(null))
      .build()

  }
}

ic_notif是我使用Vector创建的图形对象

Answer 1

private var mBuilder: NotificationCompat.Builder? = null  
val mNotificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager
val intent = Intent(activity, MainActivity::class.java)
val pi = PendingIntent.getActivity(activity, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)


  if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.O) {            
     val icon = BitmapFactory.decodeResource(resources, shapemyapp.admin.R.drawable.iphn)                                    
     val importance = NotificationManager.IMPORTANCE_DEFAULT
     val notificationChannel = NotificationChannel("ID", "Name", importance)
     mNotificationManager.createNotificationChannel(notificationChannel)
     mBuilder = NotificationCompat.Builder(this, "MyNotifications")
          .setLargeIcon(icon)
          .setSmallIcon(R.drawable.ic_notifications_active_black_24dp)
          .setContentTitle(title)
          .setContentText(body)              
          .build()
  } else {
        mBuilder = NotificationCompat.Builder(activity) 
           .setSmallIcon(R.drawable.ic_notifications_active_black_24dp)
  }                                         
    mBuilder!!.setContentIntent(pi)
    mNotificationManager.notify(NotificationID.id, mBuilder!!.build())

Answer 2

您可以尝试使用ic_notif.png代替矢量。

除此之外，在最新的Android版本中，建议使用channelId。您可以添加此块以添加channelId

if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
        val channelId = "yourChannelId"
        val channel = NotificationChannel(channelId, "your channel Name" ,
                NotificationManager.IMPORTANCE_DEFAULT)
        mNotificationManager.createNotificationChannel(channel)
        mBuilder.setChannelId(channelId)
    }

Answer 3

这是工作示例：

以这种方式调用onMessageReceived(remoteMessage: RemoteMessage?)内的private fun sendNotification(response: NotifyResponse) { var bmp: Bitmap? = null try { //loading the image from server // if (!TextUtils.isEmpty(response.image)) { // val futureTarget = GlideApp.with(this).asBitmap().load(response.image).submit() // try { // bmp = futureTarget.get() // GlideApp.with(this).clear(futureTarget) // // } catch (e: ExecutionException) { // e.printStackTrace() // } catch (e: InterruptedException) { // e.printStackTrace() // } // // } val uniqueInt = (System.currentTimeMillis() and 0xfffffff).toInt() val pendingIntent = PendingIntent.getActivity(this, uniqueInt, getIntent(response.type), PendingIntent.FLAG_ONE_SHOT) val channelId = BuildConfig.FLAVOR val soundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION) val notificationBuilder = NotificationCompat.Builder(this, channelId) .setSmallIcon(notificationIcon) .setContentTitle(response.title) .setContentText(response.message) .setAutoCancel(true) .setSound(soundUri) .setPriority(NotificationCompat.PRIORITY_HIGH) if (bmp != null) { notificationBuilder.setLargeIcon(bmp) notificationBuilder.setStyle(NotificationCompat.BigPictureStyle().bigPicture(bmp).bigLargeIcon(null)) } notificationBuilder.setContentIntent(pendingIntent) val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { val channel = NotificationChannel(BuildConfig.FLAVOR, "Channel human readable title", NotificationManager.IMPORTANCE_DEFAULT) notificationManager.createNotificationChannel(channel) } notificationManager.notify(0, notificationBuilder.build()) } catch (o: Exception) { o.printStackTrace() } }，您可以静态或动态设置大图标。

{{1}}

setSmallIcon（）和setLargeIcon（）在Android Notification中不起作用

3 个答案: