摄像头下方有黑底space

Question

我正在展示来自 UITabBarController 的 UIImagePickerController。

        let imagePicker = UIImagePickerController()
        imagePicker.delegate = self
        imagePicker.sourceType = .Camera
        imagePicker.allowsEditing = false
        imagePicker.showsCameraControls = false

        presentViewController(imagePicker, animated: true, completion: nil)

我已明确将 showsCameraControls 设置为 false 以将我的自定义叠加视图置于 camera.But 之上为什么底部有黑色 space？有帮助吗？

Answer 1

相机宽高比为4:3，您必须应用变换比例才能获得全屏

Swift

let screenSize = UIScreen.mainScreen().bounds.size
let aspectRatio:CGFloat = 4.0/3.0
let scale = screenSize.height/screenSize.width * aspectRatio
self.imagePikerViewController.cameraViewTransform = CGAffineTransformMakeScale(scale, scale);

屏幕截图

Objective C

CGSize screenSize = [[UIScreen mainScreen] bounds].size;
float aspectRatio = 4.0/3.0;
float scale = screenSize.height/screenSize.width * aspectRatio;
self.imagePikerViewController.cameraViewTransform = CGAffineTransformMakeScale(scale, scale);

摄像头下方有黑底space

There is a black bottom space below the camera

camera

uitabbarcontroller

uiimagepickercontroller

ios

swift