整合的部分參見其他文章 iOS中Unity橫屏

有個(gè)問題一直沒有解決，就是使用AR功能時(shí)，圖像有時(shí)候會(huì)顛倒，最近意外解決了
橫屏的方式仍然相同，主工程保持Portrait不變
在具體顯示Unity的頁(yè)面，添加橫屏代碼

  override var shouldAutorotate: Bool{
        return false
    }
    
    override var preferredInterfaceOrientationForPresentation: UIInterfaceOrientation{
        return .landscapeRight
    }

在UnityAppController.mm中
注釋以下三行代碼

- (void)applicationWillResignActive:(UIApplication*)application
{
   ::printf("-> applicationWillResignActive()\n");

   if(_unityAppReady)
   {
       UnitySetPlayerFocus(0);

       _wasPausedExternal = UnityIsPaused();
       if (_wasPausedExternal == false)
       {
           // do pause unity only if we dont need special background processing
           // otherwise batched player loop can be called to run user scripts
           int bgBehavior = UnityGetAppBackgroundBehavior();
           if(bgBehavior == appbgSuspend || bgBehavior == appbgExit)
           {
               // Force player to do one more frame, so scripts get a chance to render custom screen for minimized app in task manager.
               // NB: UnityWillPause will schedule OnApplicationPause message, which will be sent normally inside repaint (unity player loop)
               // NB: We will actually pause after the loop (when calling UnityPause).
               UnityWillPause();
               [self repaint];
               UnityPause(1);

//                _snapshotView = [self createSnapshotView];
//                if(_snapshotView)
//                    [_rootView addSubview:_snapshotView];
           }
       }
   }

   _didResignActive = true;
}

就可以了，但支持向右橫屏，向左橫屏，圖像一直是顛倒的。