Android：从Uri（视频库）到“真实” uri

Question

我在将视频URI转换为文件时遇到问题。当我尝试获取“真实”路径时，该路径将为null。

从图库中获取视频就像魅力一样：

override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)
    this.context?.let {
        data.run {
        }.let {
            val videopath = UploadVideoHandler().getRealPathFromURI(data.data, this.activity)   
        }
    }
}

但是这个不想和我一起玩， s 一直都只返回null ...

public String getRealPathFromURI(Uri contentURI, Activity context) {
    String[] projection = { MediaStore.Video.Media.DATA };
    @SuppressWarnings("deprecation")
    Cursor cursor = context.managedQuery(contentURI, projection, null,
            null, null);
    if (cursor == null)
        return null;
    int column_index = cursor
            .getColumnIndexOrThrow(MediaStore.Video.Media.DATA);
    if (cursor.moveToFirst()) {
        String s = cursor.getString(column_index);
        // cursor.close();
        return s;
    }
    // cursor.close();
    return null;
}