从Uri中获取真是文件路径的方法

这个方法是从网上找到的，感谢网友的无私奉献！

 

    public static String getFilePathFromUri(Context context, Uri uri,
            String[] projection, String selection, String[] selectionArgs,
            String sortOrder) {
        Cursor cursor = context.getContentResolver().query(uri, projection,
                selection, selectionArgs, sortOrder);
        int index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);
        cursor.moveToFirst();
        String path = cursor.getString(index);
        cursor.close();
        cursor = null;
        return path;
    }