[Android]用图库打开指定的文件夹，没错是第一个画面直接是图库的文件夹画面

  @Override
    public void onMediaScannerConnected() {
        Log.d("onMediaScannerConnected", "success  " + conn);
        Log.d("scanpath", "scanpath  " + scanpath);
        conn.scanFile(scanpath, "image/png");//主要是这里原本和上面的那个链接是一样的写成了"image/*" 然后各种报错，报找不到activity，其实可能是对于的格式自动匹配有问题，应用装了快播，竟然默认打开了快播，无力吐槽。最后更正，高了一个晚上
    }//媒体扫描

    @Override
    public void onScanCompleted(String s, Uri uri) {
        try {
            Log.d("onScanCompleted", uri + "success" + conn);
            System.out.println("URI " + uri);
            System.out.println("path" + path);
            if (uri != null) {
                Intent intent = new Intent(Intent.ACTION_VIEW);

                intent.setData(uri);

                Log.d("inten", "inten  " + intent.toString());
                startActivity(intent);
            }
        } finally {
            conn.disconnect();
            conn = null;
        }
    }//媒体扫描完毕