Android Drawable转BitmapDrawable再提取Bitmap，Kotlin

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><ImageViewandroid:id="@+id/img1"android:layout_width="match_parent"android:layout_height="100dp"android:scaleType="centerInside" /><ImageViewandroid:id="@+id/img2"android:layout_width="match_parent"android:layout_height="100dp"android:scaleType="centerInside" /></LinearLayout>

        setContentView(R.layout.two_image)val img1 = findViewById<ImageView>(R.id.img1)img1.setImageResource(android.R.drawable.ic_dialog_alert)val drawable = img1.drawableval bitmapDrawable = drawable as? BitmapDrawableval bmp = bitmapDrawable?.bitmapval img2 = findViewById<ImageView>(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