Android Drawable转BitmapDrawable再提取Bitmap，Kotlin

Android Drawable转BitmapDrawable再提取Bitmap，Kotlin

        setContentView(R.layout.two_image)

        val img1 = findViewById(R.id.img1)
        img1.setImageResource(android.R.drawable.ic_dialog_alert)
        val drawable = img1.drawable
        val bitmapDrawable = drawable as? BitmapDrawable
        val bmp = bitmapDrawable?.bitmap

        val img2 = findViewById(R.id.img2)
        img2.setImageBitmap(bmp)

Android Drawable 转化成 Bitmap_zhangphil的博客-CSDN博客/*Java代码 将Drawable转化为Bitmap */ Bitmap drawableToBitmap(Drawable drawable) { int width = drawable.getIntrinsicWidth(); int height = drawable.getIntrinsicHeight(); Bitmap bitmaphttps://blog.csdn.net/zhangphil/article/details/43767535Android传递Bitmap的两种简单方式及其缺陷_android上传bitmap_zhangphil的博客-CSDN博客Android传递Bitmap的几种简单方式一，通过Intent的Bundle。比如有两个activity，A，B，从A进入B。先在A中将Bitmap写进去：Resources res=getResources();Bitmap bmp=BitmapFactory.decodeResource(res, R.drawable.ic_launcher);Bundle b_android上传bitmaphttps://blog.csdn.net/zhangphil/article/details/51655973