如何在android 10及更高版本的android中获取捕获图像和图库图像的真实路径

Question

为了获得捕获图像和图库图像的真实路径，以下代码对我来说非常好。

private String getRealPathFromURI(Uri contentUri) {
        String result = null;
        try{
            String[] proj = { MediaStore.Images.Media.DATA };
            CursorLoader loader = new CursorLoader(requireActivity(), contentUri, proj, null, null, null);
            Cursor cursor = loader.loadInBackground();
            int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
            cursor.moveToFirst();
            result = cursor.getString(column_index);
            cursor.close();
        }catch(Exception e){
            Log.i("error_getting_path",e.getMessage());
        }

        return result;
    }

但在 android 10 及更高版本的设备中，我无法获得捕获路径和图库图像。 所以我的应用程序无法在 android 10 及更高版本中使用此功能。 请建议在所有 android 设备中获取路径的最佳方法。

Answer 1

  private static String getRealPathFromURI(Uri uri) {
    Uri returnUri = uri;
    Cursor returnCursor = getContentResolver().query(returnUri, null, null, null, null);
    int nameIndex = returnCursor.getColumnIndex( OpenableColumns.DISPLAY_NAME);

    returnCursor.moveToFirst();
    String name = (returnCursor.getString(nameIndex));

    File file = new File(context.getFilesDir(), name);
    try {
        InputStream inputStream = context.getContentResolver().openInputStream(uri);
        FileOutputStream outputStream = new FileOutputStream(file);
        int read = 0;
        int maxBufferSize = 1 * 1024 * 1024;
        int bytesAvailable = inputStream.available();

      
        int bufferSize = Math.min(bytesAvailable, maxBufferSize);

        final byte[] buffers = new byte[bufferSize];
        while ((read = inputStream.read(buffers)) != -1) {
            outputStream.write(buffers, 0, read);
        }
      
        inputStream.close();
        outputStream.close();
        Log.e("File Path", "Path " + file.getAbsolutePath());

    } catch (Exception e) {
        Log.e("Exception", e.getMessage());
    }
    return file.getAbsolutePath();
}