宣告：下列方法已經經過驗證，可用

Uri------>url.

    /**
     * res/drawable(mipmap)/xxx.png::::uri－－－－>url
     *
     * @return
     */
    private String imageTranslateUri(int resId) {

        Resources r = getResources();
        Uri uri = Uri.parse(ContentResolver.SCHEME_ANDROID_RESOURCE + "://"
                +
 
 r.getResourcePackageName(resId) + "/"
                + r.getResourceTypeName(resId) + "/"
                + r.getResourceEntryName(resId));

        return uri.toString();
    }

url—>uri.

String url="xxxxxxxxxx";
Uri parseUri = Uri.parse(url);

————————————————————————————————————
 

擴充套件：File, Uri和Path的相互轉化

file轉uri:

Uri uri = file.toURI();  

uri轉path:（適用於api<=19,對於api>19可參照推薦）

private String getPath(Uri uri) {  
       String[] projection = {MediaStore.Video.Media.DATA};  
       Cursor cursor = managedQuery(uri, projection, null, null, null);  
       int column_index =
 
 cursor  
               .getColumnIndexOrThrow(MediaStore.Audio.Media.DATA);  
       cursor.moveToFirst();  
       return cursor.getString(column_index);  
   }  

推薦：Android根據圖片Uri獲取圖片path絕對路徑
 

path轉uri:

Uri uri = Uri.parse(path);  

file轉path:

String path = file.getPath()  

path轉file:

File file = new File(path)