我遇到了一个奇怪的问题....
在运行 iOS 10 的设备上，相机预览显示黑屏。
但在旧版本中它可以正常工作。
我正在使用 UIImagePickerController 和
self.sourceType = UIImagePickerControllerSourceTypeCamera;
我的 info.plist 文件:
示例项目:https://github.com/arturdev/cameraTest
我用不同的方法解决了这个问题。
不要创建 UIImagePickerController 的子类，因为 Apple 不支持 UIImagePickerController 的子类。
重要
The UIImagePickerController class supports portrait mode only. This class is intended to be used as-is and does not support subclassing. The view hierarchy for this class is private and must not be modified, with one exception. You can assign a custom view to the cameraOverlayView property and use that view to present additional information or manage the interactions between the camera interface and your code.
这里是替代解决方案:
在 UIViewController 中添加这段代码
self.imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera; self.imagePickerController.showsCameraControls = NO; self.imagePickerController.delegate = self; [self.view addSubview:self.imagePickerController.view]; [self addChildViewController:self.imagePickerController]; [self.imagePickerController didMoveToParentViewController:self];
在所有 iOS 版本和设备上都能正常工作。 
关于iOS 10 UIImagePickerController 黑屏，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/39741464/
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