1、bitmap to uri
Uri uri = Uri.parse(MediaStore.Images.Media.insertImage(getContentResolver(), bitmap, null,null));
2、uri to bitmap
Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri);
另外添加一句:如何将资源文件转化成URI?
3.Uri uri = Uri.parse("android.resource://package_name/raw/sample.png");