正如标题所说，我想使用FCM发送有效负载并加载位图以在Notification Big图片中使用它。我尝试了这种方法（代码在下面）来获取图像，但它没有起作用。非常感谢任何帮助
谢谢
String imageUrl;
/**
* Called when message is received.
*
* @param remoteMessage Object representing the message received from Firebase Cloud Messaging.
*/
// [START receive_message]
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
// TODO(developer): Handle FCM messages here.
// If the application is in the foreground handle both data and notification messages here.
// Also if you intend on generating your own notifications as a result of a received FCM
// message, here is where that should be initiated. See sendNotification method below.
Intent intent = new Intent(this, MainActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0 /* Request code */, intent,
PendingIntent.FLAG_ONE_SHOT);
if (remoteMessage.getData().size() > 0) {
imageUrl = remoteMessage.getData().toString();
}
Uri defaultSoundUri = RingtoneManager.getDefaultUri(RingtoneManager.TYPE_NOTIFICATION);
Notification.Builder notificationBuilder = new Notification.Builder(this)
.setSmallIcon(R.drawable.ic_launcher)
.setContentTitle("Glaze")
.setContentText(remoteMessage.getNotification().getBody())
.setAutoCancel(true)
.setSound(defaultSoundUri)
.setLargeIcon(getBitmap(imageUrl))
.setStyle(new Notification.BigPictureStyle().bigPicture(getBitmap(imageUrl)))
.setContentIntent(pendingIntent);
NotificationManager notificationManager =
(NotificationManager) getSystemService(Context.NOTIFICATION_SERVICE);
notificationManager.notify(0 /* ID of notification */, notificationBuilder.build());
Log.d(TAG, "From: " + remoteMessage.getFrom());
Log.d(TAG, "Notification Message Body: " + remoteMessage.getNotification().getBody());
}
// [END receive_message]
public static Bitmap getBitmap(String src) {
try {
URL url = new URL(src);
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
connection.setDoInput(true);
connection.connect();
InputStream input = connection.getInputStream();
Bitmap myBitmap = BitmapFactory.decodeStream(input);
return myBitmap;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}