android--获取资源文件 r.drawable中的图片转换为drawable、bitmap

1、Resources resources = mContext.getResources();Drawable drawable = resources.getDrawable(R.drawable.a);imageview.setBackground(drawable);2、Resources r = this.getContext().getResources();Inpu...

hopetomorrow

959人浏览 · 2020-05-04 20:17:16

hopetomorrow · 2020-05-04 20:17:16 发布

1、

Resources resources = mContext.getResources();
Drawable drawable = resources.getDrawable(R.drawable.a);
imageview.setBackground(drawable);

2、

Resources r = this.getContext().getResources();
Inputstream is = r.openRawResource(R.drawable.my_background_image);
BitmapDrawable bmpDraw = new BitmapDrawable(is);
Bitmap bmp = bmpDraw.getBitmap();

3、

Bitmap bmp=BitmapFactory.decodeResource(r, R.drawable.icon);

Bitmap newb = Bitmap.createBitmap( 300, 300, Config.ARGB_8888 );

4、

InputStream is = getResources().openRawResource(R.drawable.icon);

Bitmap mBitmap = BitmapFactory.decodeStream(is);
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原文链接：https://blog.csdn.net/mp624183768/article/details/78179472