我有一个使用Firebase发送/接收通知的应用程序。我发送通知没有问题,但是如果应用程序打开,则通知显示为正方形而不是小图标,如果我单击通知也没有任何反应,但是如果我使用的是其他应用程序,则会收到通知并且通知显示正确的图标并打开应用。
public class MyMessagingService extends FirebaseMessagingService {
@Override
public void onMessageReceived(RemoteMessage remoteMessage) {
super.onMessageReceived(remoteMessage);
showNotification(remoteMessage.getNotification().getTitle(), remoteMessage.getNotification().getBody());
}
public void showNotification(String title, String message) {
NotificationCompat.Builder builder = new NotificationCompat.Builder(this, "MyNotifitcation")
.setContentTitle(title)
.setSmallIcon(R.drawable.ic_launcher_background)
.setAutoCancel(true)
.setContentText(message);
NotificationManagerCompat manager = NotificationManagerCompat.from(this);
manager.notify(999, builder.build());
}
}
public class MainActivity extends AppCompatActivity {
private String TAG = MainActivity.class.getSimpleName();
String title;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
NotificationChannel channel =
new NotificationChannel("MyNotifitcation", "MyNotifitcation", NotificationManager.IMPORTANCE_DEFAULT);
NotificationManager manager = getSystemService(NotificationManager.class);
manager.createNotificationChannel(channel);
}
FirebaseMessaging.getInstance().subscribeToTopic("general").addOnCompleteListener(new OnCompleteListener<Void>() {
@Override
public void onComplete(@NonNull Task<Void> task) {
String msg = "Successfull";
if (!task.isSuccessful()) {
msg = "Failed";
}
// Toast.makeText(MainActivity.this, msg, Toast.LENGTH_SHORT).show();
}
});
}
}
答案 0 :(得分:0)
对于通知,单击将待处理的意图添加到通知构建器。要将图像/图标添加到通知中,请在通知构建器中使用setSmallIcon()。以下是我的通知代码。
private void sendNotification(String body, String title) {
Intent intent = new Intent(this, NotificationActivity.class);
intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
intent.putExtra("action_type", "notify");
PendingIntent pendingIntent = PendingIntent.getService(getApplicationContext(), 0, intent,
PendingIntent.FLAG_ONE_SHOT);
NotificationCompat.Builder notificationBuilder = new
NotificationCompat.Builder(this,"channel")
.setSmallIcon(R.drawable.logo)
// .setContent(contentView)
.setContentTitle("title")
.setContentText("body")
.setAutoCancel(true)
.setContentIntent(pendingIntent);
Notification notification = notificationBuilder.build();
NotificationManager notificationManager = (NotificationManager) getSystemService(NOTIFICATION_SERVICE);
notificationManager.notify(0, notification);
}
答案 1 :(得分:0)
请参见以下代码。开幕活动。 original post credit
NotificationManager notificationManager = (NotificationManager) context
.getSystemService(Context.NOTIFICATION_SERVICE);
Notification notification = new Notification(icon, message, when);
Intent notificationIntent = new Intent(context, HomeActivity.class);
notificationIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP
| Intent.FLAG_ACTIVITY_SINGLE_TOP);
PendingIntent intent = PendingIntent.getActivity(context, 0,
notificationIntent, 0);
notification.setLatestEventInfo(context, title, message, intent);
notification.flags |= Notification.FLAG_AUTO_CANCEL;
notificationManager.notify(0, notification);