Android content uri 转为文件路径

方法：

     /**
     * 把content uri转为 文件路径
     *
     * @param contentUri      要转换的content uri
     * @param contentResolver 解析器
     * @return
     */
    public static String getFilePathFromContentUri(Uri contentUri,
                                                   ContentResolver contentResolver) {
        String filePath;
        String[] filePathColumn = {MediaStore.MediaColumns.DATA};
 
        Cursor cursor = contentResolver.query(contentUri, filePathColumn, null, null, null);
 
        cursor.moveToFirst();
 
        int columnIndex = cursor.getColumnIndex(filePathColumn[0]);
        filePath = cursor.getString(columnIndex);
        cursor.close();
        return filePath;
    }

使用：
File tempFile = new File( getFilePathFromContentUri(uri, getActivity().getContentResolver()));