从 Uri 检索可绘制资源 [英] Retrieve drawable resource from Uri

问题描述

我以这种方式将可绘制资源路径存储在 Uri 中:

I'm storing the drawable resource path in an Uri in this way:

Uri uri = Uri.parse("android.resource://my_app_package/drawable/drawable_name");

如何获取 uri 引用的 Drawable?

How do I get the Drawable that the uri is referencing?

我不想把它放在 ImageView 中，只要检索 Drawable(或 Bitmap)对象即可.

I don't want to put it in an ImageView, just retrieve the Drawable (or Bitmap) object.

推荐答案

getContentResolver cr object 然后调用:

is = cr.openInputStream(uri) 

最后调用:

Drawable.createFromStream(InputStream is, String srcName)

...这是一个实际的工作代码示例，您可以自己查看:

...Here's an actual working code example so you can see for yourself:

try {
    InputStream inputStream = getContentResolver().openInputStream(yourUri);
    yourDrawable = Drawable.createFromStream(inputStream, yourUri.toString() );
} catch (FileNotFoundException e) {
    yourDrawable = getResources().getDrawable(R.drawable.default_image);
}

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