如何在imageview的科特林

Question

以字节组如何转换的ImageView到ByteArray的科特林的Android

在java中

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

return image 

Answer 1

转换这是用Java科特林转换器。

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

Answer 2

这可能会帮助你，

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() 
}