获取res/drawable目录下的图片Uri

获取res/drawable目录下的图片Uri：

/**
     * 得到资源文件中图片的Uri
     * @param context 上下文对象
     * @param id 资源id
     * @return Uri
     */
    public Uri getUriFromDrawableRes(Context context, int id) {
        Resources resources = context.getResources();
        String path = ContentResolver.SCHEME_ANDROID_RESOURCE + "://"
                + resources.getResourcePackageName(id) + "/"
                + resources.getResourceTypeName(id) + "/"
                + resources.getResourceEntryName(id);
        return Uri.parse(path);
    }