Charger l'image à partir de l'URL dans la notification Android

Question

Dans mon application Android, je souhaite définir de manière dynamique les icônes de notification qui seront chargées à partir de l'URL. Pour cela, j’ai utilisé la propriété setLargeIcon de NotificationBuilder dans receiver. Bien que j’ai téléchargé cette image à partir de l’URL et que je mette cette image dans la notification, elle n’est pas affichée. Au lieu de cela, il affiche l'image setSmallIcon sous la forme d'une grande icône. Je ne sais pas où je vais mal. Ici, je poste mon code. S'il vous plaît aidez-moi à résoudre ce problème. Je vous remercie.

Code:

@SuppressLint("NewApi")
public class C2DMMessageReceiver extends BroadcastReceiver {

    @Override
    public void onReceive(Context context, Intent intent) {
        String action = intent.getAction();
        if ("com.google.Android.c2dm.intent.RECEIVE".equals(action)) {
            Log.e("C2DM", "received message");
            final String fullName = intent.getStringExtra("message");
            final String payload1 = intent.getStringExtra("message1");
            final String payload2 = intent.getStringExtra("message2");
            final String userImage = intent.getStringExtra("userImage");

            Log.e("userImage Url :", userImage); //it shows correct url

            new sendNotification(context)
                    .execute(fullName, payload1, userImage);
        }
    }

private class sendNotification extends AsyncTask<String, Void, Bitmap> {

        Context ctx;
        String message;

        public sendNotification(Context context) {
            super();
            this.ctx = context;
        }

        @Override
        protected Bitmap doInBackground(String... params) {

            InputStream in;
            message = params[0] + params[1];
            try {

                in = new URL(params[2]).openStream();
                Bitmap bmp = BitmapFactory.decodeStream(in);
                return bmp;

            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(Bitmap result) {

            super.onPostExecute(result);
            try {
                NotificationManager notificationManager = (NotificationManager) ctx
                        .getSystemService(Context.NOTIFICATION_SERVICE);

                Intent intent = new Intent(ctx, NotificationsActivity.class);
                intent.putExtra("isFromBadge", false);


                Notification notification = new Notification.Builder(ctx)
                        .setContentTitle(
                                ctx.getResources().getString(R.string.app_name))
                        .setContentText(message)
                        .setSmallIcon(R.drawable.ic_launcher)
                        .setLargeIcon(result).build();

                // hide the notification after its selected
                notification.flags |= Notification.FLAG_AUTO_CANCEL;

                notificationManager.notify(1, notification);

            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

Answer 1

J'ai changé mon code comme ci-dessous et ça fonctionne maintenant:

private class sendNotification extends AsyncTask<String, Void, Bitmap> {

        Context ctx;
        String message;

        public sendNotification(Context context) {
            super();
            this.ctx = context;
        }

        @Override
        protected Bitmap doInBackground(String... params) {

            InputStream in;
            message = params[0] + params[1];
            try {

 URL url = new URL(params[2]);
        HttpURLConnection connection = (HttpURLConnection) url.openConnection();
        connection.setDoInput(true);
        connection.connect();
        in = connection.getInputStream();
        Bitmap myBitmap = BitmapFactory.decodeStream(in);
        return myBitmap;




            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(Bitmap result) {

            super.onPostExecute(result);
            try {
                NotificationManager notificationManager = (NotificationManager) ctx
                        .getSystemService(Context.NOTIFICATION_SERVICE);

                Intent intent = new Intent(ctx, NotificationsActivity.class);
                intent.putExtra("isFromBadge", false);


                Notification notification = new Notification.Builder(ctx)
                        .setContentTitle(
                                ctx.getResources().getString(R.string.app_name))
                        .setContentText(message)
                        .setSmallIcon(R.drawable.ic_launcher)
                        .setLargeIcon(result).build();

                // hide the notification after its selected
                notification.flags |= Notification.FLAG_AUTO_CANCEL;

                notificationManager.notify(1, notification);

            } catch (Exception e) {
                e.printStackTrace();
            }
        }
    }

Answer 2

Comment implémenter les notifications de style BigPicture:

Le miracle a été fait par .setStyle(new Notification.BigPictureStyle().bigPicture(result)):

J'ai fait comme ça avec:

 

Générer une notification par AsyncTask:

new generatePictureStyleNotification(this,"Title", "Message", 
                 "http://api.androidhive.info/images/sample.jpg").execute();

AsyncTask:

public class generatePictureStyleNotification extends AsyncTask<String, Void, Bitmap> {

        private Context mContext;
        private String title, message, imageUrl;

        public generatePictureStyleNotification(Context context, String title, String message, String imageUrl) {
            super();
            this.mContext = context;
            this.title = title;
            this.message = message;
            this.imageUrl = imageUrl;
        }

        @Override
        protected Bitmap doInBackground(String... params) {

            InputStream in;
            try {
                URL url = new URL(this.imageUrl);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setDoInput(true);
                connection.connect();
                in = connection.getInputStream();
                Bitmap myBitmap = BitmapFactory.decodeStream(in);
                return myBitmap;
            } catch (MalformedURLException e) {
                e.printStackTrace();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }

        @TargetApi(Build.VERSION_CODES.JELLY_BEAN)
        @Override
        protected void onPostExecute(Bitmap result) {
            super.onPostExecute(result);

            Intent intent = new Intent(mContext, MyOpenableActivity.class);
            intent.putExtra("key", "value");
            PendingIntent pendingIntent = PendingIntent.getActivity(mContext, 100, intent, PendingIntent.FLAG_ONE_SHOT);

            NotificationManager notificationManager = (NotificationManager) mContext.getSystemService(Context.NOTIFICATION_SERVICE);
            Notification notif = new Notification.Builder(mContext)
                    .setContentIntent(pendingIntent)
                    .setContentTitle(title)
                    .setContentText(message)
                    .setSmallIcon(R.mipmap.ic_launcher)
                    .setLargeIcon(result)
                    .setStyle(new Notification.BigPictureStyle().bigPicture(result))
                    .build();
            notif.flags |= Notification.FLAG_AUTO_CANCEL;
            notificationManager.notify(1, notif);
        }
    }

Answer 3

vous pouvez le faire en utilisant Glide comme ceci:

val notificationBuilder = NotificationCompat.Builder(this, channelId)
        .setSmallIcon(R.drawable.ic_message)
        .setContentTitle("title")
        .setContentText("text")

val notificationManager = getSystemService(Context.NOTIFICATION_SERVICE) as NotificationManager

val futureTarget = Glide.with(this)
        .asBitmap()
        .load(photoUrl)
        .submit()

val bitmap = futureTarget.get()
notificationBuilder.setLargeIcon(bitmap)

Glide.with(this).clear(futureTarget)

notificationManager.notify(0, notificationBuilder.build())