iOS开发之机器学习框架MediaPipe（4）【转载】

书接上回：iOS开发之机器学习框架MediaPipe（3）_hbblzjy的博客-优快云博客

兜兜转转大结局终于来了，是时候运行Demo，实践和检验成果了。

上次已经将项目用Xcode打开，然后连接真机，因为我需要用SelfieSegmentationGpuApp这个demo，所以我选择了此Targets，然后运行，发现报错。错误如下：

然后我看了官方文档：（MediaPipe on iOS - mediapipe）

   
   

     
     

      
      

     
     
     
     

      
      

       
       Set 
       
       up provisioning
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       To install applications 
       
       on an iOS device, you need a provisioning profile. There 
       
       are two 
       
       options:
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Automatic provisioning. This allows you 
       
       to build 
       
       and install an app 
       
       to your personal device. The provisining profile 
       
       is managed 
       
       by Xcode, 
       
       and has 
       
       to be updated often (it 
       
       is 
       
       valid 
       
       for about a week).
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Custom provisioning. This uses a provisioning profile associated 
       
       with an Apple developer account. These profiles have a longer validity period 
       
       and can target multiple devices, but you need a paid developer account 
       
       with Apple 
       
       to obtain one.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       AUTOMATIC PROVISIONING
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Create an Xcode project 
       
       for MediaPipe, 
       
       as discussed earlier.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       In the project navigator 
       
       in the 
       
       left sidebar, 
       
       select the “Mediapipe” project.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Select one 
       
       of the application targets, e.g. HandTrackingGpuApp.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Select the “Signing 
       
       & Capabilities” tab.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Check “Automatically manage signing”, 
       
       and confirm the dialog box.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Select “Your Name (Personal Team)” 
       
       in the Team pop-up menu.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       This set-up needs 
       
       to be done once 
       
       for each application you want 
       
       to install. Repeat steps 
       
       3-
       
       6 
       
       as needed.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       This generates provisioning profiles 
       
       for each app you have selected. Now we need 
       
       to tell Bazel 
       
       to 
       
       use them. We have provided a script 
       
       to make this easier.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       In the terminal, 
       
       to the mediapipe directory where you cloned the 
       
       repository.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Run this command:
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       python
       
       3 mediapipe
       
       /examples
       
       /ios
       
       /link_local_profiles.py
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       This will find 
       
       and link the provisioning profile 
       
       for 
       
       all applications 
       
       for which you have enabled automatic provisioning 
       
       in Xcode.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Note: once a profile expires, Xcode will 
       
       generate a new one; you must 
       
       then 
       
       run this script again 
       
       to link the updated profiles.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       CUSTOM PROVISIONING
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Obtain a provisioning profile 
       
       from Apple.
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Tip: You can 
       
       use this command 
       
       to see the provisioning profiles you have previously downloaded 
       
       using Xcode: 
       
       open ~
       
       /Library
       
       /MobileDevice
       
       /
       
       "Provisioning Profiles". 
       
       If there 
       
       are none, 
       
       generate 
       
       and download a profile 
       
       on Apple’s developer site.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Symlink 
       
       or 
       
       copy your provisioning profile 
       
       to mediapipe
       
       /mediapipe
       
       /provisioning_profile.mobileprovision.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       cd mediapipe
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       ln -s ~
       
       /Downloads
       
       /MyProvisioningProfile.mobileprovision mediapipe
       
       /provisioning_profile.mobileprovision
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Note: 
       
       if you had previously 
       
       set 
       
       up automatic provisioning, you should remove the provisioning_profile.mobileprovision symlink 
       
       in each example’s directory, since it will take precedence over the 
       
       common one. You can 
       
       also overwrite it 
       
       with you own profile 
       
       if you need a different profile 
       
       for different apps.
      
      
     
     

     
     

      
      

     
     
     
     

      
      
 
      
      
     
     

     
     

      
      

     
     
     
     

      
      

       
       Open mediapipe
       
       /examples
       
       /ios
       
       /bundle_id.bzl, 
       
       and change the BUNDLE_ID_PREFIX 
       
       to a prefix associated 
       
       with your provisioning profile.
      
      
     
     
   
   

    
    
   
   
   
   

意思是说，运行工程前，需要添加配置文件，有两种方式：一种是自动配置文件，一种是自定义添加配置文件（这种方式按照原文档，我没操作出来，但我猜应该需要在开发者网站配置一个通用证书，然后导入使用）。接下来我要说的是第一种方式。

自动配置文件，相信iOS开发者应该都很熟悉，只要你下载过别人的Demo，那你就会配置，

结果你会发现，依然会报上述错误，这是因为自动配置好的profile文件还没有关联上对应的项目，此时，你需要 cd 到 mediapipe文件夹下，然后执行：

python3 mediapipe/examples/ios/link_local_profiles.py
   
   

效果如下：

然后你就会在对应的项目文件夹下生成对应的快捷配置文件provisioning_profile.mobileprovision：

此时，再次运行对应的demo，successful ！！！欢欣鼓舞，鼓舞人心～内心充满骄傲。

下面是两个demo的效果：

一种是SelfieSegmentationGpuApp，一种是FaceMeshGpuApp

     

看到这样的结果，还是很兴奋和开心的，接下来就是研究源码和如何添加到项目，实现想要的效果了，加油！！！

整理不易，转载请注明，谢谢关注