在iOS中開啓/關閉Tokbox屏幕共享目標C

Question

我想提供屏幕共享開啓/關閉 iOS的功能使用Tokbox。

我可以切換到設備屏幕共享，但在共享屏幕後，我無法切換回設備Camara。

我用以下代碼嘗試過。

-(void)toogleScreen{ 
    if (isSharingEnable == YES) { 
     isSharingEnable = NO; 
     NSLog(@"%@",_publisher.description); 

     _publisher.videoCapture = nil; 
     [_publisher setVideoType:OTPublisherKitVideoTypeCamera]; 
     _publisher.audioFallbackEnabled = YES; 
    } else { 
     isSharingEnable = YES; 
      [_publisher setVideoType:OTPublisherKitVideoTypeScreen]; 
     _publisher.audioFallbackEnabled = NO; 

     TBScreenCapture* videoCapture = 
     [[TBScreenCapture alloc] initWithView:self.view]; 
     [_publisher setVideoCapture:videoCapture]; 
    } 
} 

Answer 1

看起來您可能沒有在關閉screencapture時設置任何視頻捕獲器。此行：

 _publisher.videoCapture = nil; 

是不必要的破壞性。儘量保持一個內部參考的攝像頭和屏幕capturers，並進行初始化的toggleScreen功能之外：

@implementation MyPublisher { 
    id <OTVideoCapture> _cameraCapture; 
    id <OTVideoCapture> _screenCapture; 
} 

然後，更改您的切換方法是這樣的：

-(void)toogleScreen{ 
    if (isSharingEnable == YES) { 
     isSharingEnable = NO; 
     [_publisher setVideoCapture:_cameraCapture]; 
     [_publisher setVideoType:OTPublisherKitVideoTypeCamera]; 
     _publisher.audioFallbackEnabled = YES; 
    } else { 
     isSharingEnable = YES; 
     [_publisher setVideoCapture:_screenCapture]; 
     [_publisher setVideoType:OTPublisherKitVideoTypeScreen]; 
     _publisher.audioFallbackEnabled = NO;  
    } 
}