Android Drawable转BitmapDrawable再提取Bitmap，Kotlin

拼搏现实的明天。 2023-10-14 22:12 13阅读 0赞

## 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">
    
        <ImageView
            android:id="@+id/img1"
            android:layout_width="match_parent"
            android:layout_height="100dp"
            android:scaleType="centerInside" />
    
        <ImageView
            android: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.drawable
            val bitmapDrawable = drawable as? BitmapDrawable
            val bmp = bitmapDrawable?.bitmap
    
            val img2 = findViewById<ImageView>(R.id.img2)
            img2.setImageBitmap(bmp)

![eb89d5531d8846619e019c33f9f993d3.png][]

[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 bitmap![favicon32.ico][]https://blog.csdn.net/zhangphil/article/details/43767535][Android Drawable _ Bitmap_zhangphil_-CSDN_Java_ _Drawable_Bitmap _ Bitmap drawableToBitmap_Drawable drawable_ _ int width _ drawable.getIntrinsicWidth_ int height _ drawable.getIntrinsicHeight_ Bitmap bitmap_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_43767535][Android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bitmap![favicon32.ico][]https://blog.csdn.net/zhangphil/article/details/51655973][Android_Bitmap_android_bitmap_zhangphil_-CSDN_Android_Bitmap_Intent_Bundle_activity_A_B_A_B_A_Bitmap_Resources res_getResources_Bitmap bmp_BitmapFactory.decodeResource_res_ R.drawable.ic_launcher_Bundle b_android_bitmap_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_51655973]

[eb89d5531d8846619e019c33f9f993d3.png]: https://img-blog.csdnimg.cn/eb89d5531d8846619e019c33f9f993d3.png
[favicon32.ico]: https://g.csdnimg.cn/static/logo/favicon32.ico
[Android Drawable _ Bitmap_zhangphil_-CSDN_Java_ _Drawable_Bitmap _ Bitmap drawableToBitmap_Drawable drawable_ _ int width _ drawable.getIntrinsicWidth_ int height _ drawable.getIntrinsicHeight_ Bitmap bitmap_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_43767535]: https://blog.csdn.net/zhangphil/article/details/43767535
[Android_Bitmap_android_bitmap_zhangphil_-CSDN_Android_Bitmap_Intent_Bundle_activity_A_B_A_B_A_Bitmap_Resources res_getResources_Bitmap bmp_BitmapFactory.decodeResource_res_ R.drawable.ic_launcher_Bundle b_android_bitmap_favicon32.ico_https_blog.csdn.net_zhangphil_article_details_51655973]: https://blog.csdn.net/zhangphil/article/details/51655973