Android Big Picture notification with picasso

NotificationHelper.java

import android.app.NotificationManager;
import android.app.PendingIntent;
import android.content.Context;
import android.content.Intent;
import android.support.v4.app.NotificationCompat;

import com.squareup.picasso.Picasso;

import java.io.IOException;

/**
 * Created by BlackFootSanji on 9/22/2016.
 */

public class NotificationHelper {
    private final Context context;

    public NotificationHelper(Context context) {
        this.context = context;
    }

    public void showNotification(String title, String message, int smallIcon) {
        try {
            final NotificationManager manager = (NotificationManager) context.getSystemService(Context.NOTIFICATION_SERVICE);
            
            NotificationCompat.Builder builder = new NotificationCompat.Builder(context)
                    .setContentTitle(title)
                    .setContentText(message)
                    .setSmallIcon(smallIcon)
                    .setContentIntent(
                            PendingIntent.getActivity(
                                    context,
                                    0,
                                    new Intent(context, MainActivity.class),
                                    PendingIntent.FLAG_UPDATE_CURRENT)
                    )
                    //here comes to load image by Picasso
                    //it should be inside try block
                    .setLargeIcon(Picasso.with(context).load("URL_TO_LOAD_LARGE_ICON").get())
                    //BigPicture Style
                    .setStyle(new NotificationCompat.BigPictureStyle()
                            //This one is same as large icon but it wont show when its expanded that's why we again setting
                            .bigLargeIcon(Picasso.with(context).load("URL_TO_LOAD_LARGE_ICON").get())
                            //This is Big Banner image
                            .bigPicture(Picasso.with(context).load("URL_TO_LOAD_BANNER_IMAGE").get())
                            //When Notification expanded title and content text
                            .setBigContentTitle(title)
                            .setSummaryText(message)
                    );

            //extra you can add actions

            manager.notify(1029, builder.build());
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

NotificationHelperUpdate.java

/*****************************************
 *
 * To update images
 *
 * ***************************************/

final Notification notification = builder.build();

final int notificationId = new Random().nextInt(200);
manager.notify(notificationId, notification);

final RemoteViews contentView = notification.contentView;
final RemoteViews bigContentView = notification.bigContentView;

final int iconId = android.R.id.icon;
final int bigIconId = context.getResources().getIdentifier("android:id/big_picture", null, null);


// To push notification from background thread
Handler handler = new Handler(Looper.getMainLooper());
handler.post(new Runnable() {
    @Override
    public void run() {
        Picasso.with(context).load("URL").into(contentView, iconId, notificationId, notification);
        Picasso.with(context).load("BANNER_IMAGE_URL").into(bigContentView, bigIconId, notificationId, notification);
    }
});

Hi,

Please, how to use it with custom layout ?

Yes Can you please illustrate how to used this ?

your showNotification() method executes a network call on the same thread:
Picasso.with(context).load("URL_TO_LOAD_LARGE_ICON").get()