我想打开一个特定的文件夹，从菜单抽屉在android应用程序，但当我运行应用程序，它打开最近的文件文件夹。
这是我的密码

if (id == R.id.action_downloaded) {
            if (PermissionUtilities.isPermissionGranted(mActivity, PermissionUtilities.SD_READ_WRITE_PERMISSIONS, PermissionUtilities.REQUEST_READ_WRITE_STORAGE_DOWNLOAD)) {
                Intent intent = new Intent(Intent.ACTION_GET_CONTENT);
                Uri uri = Uri.parse(Environment.getExternalStorageDirectory() + "/" + myfolder + "/");
                intent.setDataAndType(uri, "application/*");
                intent.addCategory(Intent.CATEGORY_OPENABLE);
                startActivityForResult(Intent.createChooser(intent, "Select Pdf"), 1000);
            }