display images in android stored as varbinary in sql

Question

i have images stored as varbinary in SQL table, how can display the images in android client

Answer 1

What you need to do is

• Convert the Image string from DB to a ByteArray
• Use BitmapFactory in android to convert from ByteArray to Bitmap
• Set the bitmap of your imageview
  • val imageText = "FFDD8FFE000104A4694600010101000000000000FFEE1138..."
  • myImageView.setImageBitmap(getBitmap(imageText))

---

You could use the following function [kotlin]

import android.graphics.Bitmap
import android.graphics.BitmapFactory
import com.google.android.gms.common.util.Hex

/**
 * Converts a hex string to Bitmap
 *
 * @param image  hex string e.g. "FFD8FFE0..."
 * @return Bitmap
 */
fun getBitmap(image: String): Bitmap {
    // Convert String to ByteArray
    val byteArray = Hex.stringToBytes(image)
    // Convert ByteArray Bitmap
    return BitmapFactory.decodeByteArray(byteArray, 0, byteArray.size)
}