How to convert imageview to bytearray in kotlin

Question

How to convert imageview to bytearray kotlin android

In java

Bitmap bitmap = ((BitmapDrawable)image.getDrawable()).getBitmap();
ByteArrayOutputStream stream=new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 90, stream);
byte[] image=stream.toByteArray();

return image

You can copy paste this code in your Kotlin file in Android Studio and it will get converted to Kotlin. — zsmb13, Oct 10 '17 at 12:05

score 23 · Accepted Answer · answered Oct 10 '17 at 12:06

23

Here it is use java to kotlin converter.

val bitmap = (image.getDrawable() as BitmapDrawable).getBitmap()
val stream = ByteArrayOutputStream()
bitmap.compress(Bitmap.CompressFormat.PNG, 90, stream)
val image = stream.toByteArray()

answered Oct 10 '17 at 12:06

Muzammil Husnain

1,218
1
10
24

2

Note: AFAIK PNG is lossless and quality parameter has no effect – Shubham AgaRwal Sep 08 '18 at 11:18

score 3 · Answer 2 · answered Oct 10 '17 at 12:14

This may help you,

private fun imageToBitmap(image: ImageView): ByteArray {
    val bitmap = (image.drawable as BitmapDrawable).bitmap
    val stream = ByteArrayOutputStream()
    bitmap.compress(Bitmap.CompressFormat.PNG, 90, stream)

    return stream.toByteArray()
}

How to convert imageview to bytearray in kotlin

2 Answers2

Linked