这是最简单的解决方案:

Bitmap bitmap = MediaStore.Images.Media.getBitmap(this.getContentResolver(), uri);

你可以这样做:

protected void onActivityResult(int requestCode, int resultCode, Intent imageReturnedIntent) {
    super.onActivityResult(requestCode, resultCode, imageReturnedIntent);
    switch(requestCode) {
        case 0:
            if(resultCode == RESULT_OK){
                    Uri selectedImage = imageReturnedIntent.getData();
                    Bundle extras = imageReturnedIntent.getExtras();
                    bitmap = extras.getParcelable("data");
            }
            break;
   }

通过这个，你可以很容易地将uri转换为位图。 希望能帮助你。

private fun setImage(view: ImageView, uri: Uri) {
        val stream = contentResolver.openInputStream(uri)
        val bitmap = BitmapFactory.decodeStream(stream)
        view.setImageBitmap(bitmap)
}

Bitmap bitmap = null;
ContentResolver contentResolver = getContentResolver(); 
try {
    if(Build.VERSION.SDK_INT < 28) {
        bitmap = MediaStore.Images.Media.getBitmap(contentResolver, imageUri);
    } else {
        ImageDecoder.Source source = ImageDecoder.createSource(contentResolver, imageUri);
        bitmap = ImageDecoder.decodeBitmap(source);
    }
} catch (Exception e) {
    e.printStackTrace();
}

try
{
    Bitmap bitmap = MediaStore.Images.Media.getBitmap(c.getContentResolver() , Uri.parse(paths));
}
catch (Exception e) 
{
    //handle exception
}

yes路径必须是这样的格式

file:///mnt/sdcard/filename.jpg

MediaStore.Images.Media.getBitmap在API 29中已弃用。推荐的方法是使用ImageDecoder。在API 28中添加的createSource。

下面是如何获得位图:

val bitmap = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.P) {
    ImageDecoder.decodeBitmap(ImageDecoder.createSource(requireContext().contentResolver, imageUri))
} else {
    MediaStore.Images.Media.getBitmap(requireContext().contentResolver, imageUri)
}

重要:ImageDecoder.decodeBitmap读取EXIF方向，媒体。getBitmap不