Display byte[] to ImageView in Android

You can use BitmapFactory.decodeByteArray() to perform the decoding.

In case anyone else stumbles across this question, here is the code

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.widget.ImageView;

public class ModelAssistant {

    public static void setImageViewWithByteArray(ImageView view, byte[] data) {
        Bitmap bitmap = BitmapFactory.decodeByteArray(data, 0, data.length);
        view.setImageBitmap(bitmap);
    }
}

// Convert bytes data into a Bitmap
Bitmap bmp = BitmapFactory.decodeByteArray(bytes, 0, bytes.length);
ImageView imageView = new ImageView(ConversationsActivity.this);
// Set the Bitmap data to the ImageView
imageView.setImageBitmap(bmp);

// Get the Root View of the layout
ViewGroup layout = (ViewGroup) findViewById(android.R.id.content);
// Add the ImageView to the Layout
layout.addView(imageView);

We convert our byte data into a Bitmap using Bitmap.decodeByteArray() and then set that to a newly created ImageView.