Android ByteBuffer Bitmap byte[] convert，Kotlin

Android use ByteBuffer convert Bitmap to byte[]，Kotlin

1、

Bitmap to byte[] array：

    fun Bitmap.toByte(bmp: Bitmap): ByteArray {
        val baos = ByteArrayOutputStream()
        bmp.compress(Bitmap.CompressFormat.PNG, 100, baos)
        return baos.toByteArray()
    }

2、

byte[] to Bitmap：

fun toBitmap(bytes: ByteArray): Bitmap {
        return BitmapFactory.decodeByteArray(bytes, 0, bytes.size)
    }

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