How to convert imageview to bytearray in kotlin

问题

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

回答1:

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()

回答2:

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()
}

来源：https://stackoverflow.com/questions/46666308/how-to-convert-imageview-to-bytearray-in-kotlin