ImageHelper.java

package com.foodapp.food.recipe.helper;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;

import java.io.ByteArrayOutputStream;


public class ImageHelper
{
    public Bitmap getBitmapFromByteArray(byte[] b)
    {
        Bitmap bitmap = BitmapFactory.decodeByteArray(b, 0, b.length);
        return bitmap;
    }

    public byte[] getByteArrayFromDrawable(Drawable d)
    {
        Bitmap bitmap = ((BitmapDrawable) d).getBitmap();
        ByteArrayOutputStream stream = new ByteArrayOutputStream();
        bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
        byte[] data = stream.toByteArray();

        return data;
    }

}