ios - 照片库无法访问只有相机选项可用的快速代码

Question

我正在使用 Swift 5 代码，在代码中我必须捕获图像。我的源类型是 .camera 或 .photoLibrary。我已经完美地设置了所有内容，甚至是 Info.plist 中的权限设置，但由于不明原因无法访问照片库以选择图像。每次只有相机选项可用。请建议并查看我的代码我做错了什么？

权限信息.plist:

Privacy - Photo Library Additions Usage Description
Privacy - Photo Library Usage Description
Privacy - Media Library Usage Description
Privacy - Camera Usage Description

代码:

var imagePicker: UIImagePickerController!


 enum ImageSource {
        case photoLibrary
        case camera
    }

    //MARK: - Take image
    func takePhoto() {
        guard UIImagePickerController.isSourceTypeAvailable(.camera) else {
            selectImageFrom(.photoLibrary)
            return
        }
        selectImageFrom(.camera)
    }

    func selectImageFrom(_ source: ImageSource){
        imagePicker =  UIImagePickerController()
        imagePicker.delegate = self
        switch source {
        case .camera:
            imagePicker.sourceType = .camera
        case .photoLibrary:
            imagePicker.sourceType = .photoLibrary
        }
        present(imagePicker, animated: true, completion: nil)
    }

Answer 1

在你的守卫中，你总是优先考虑摄像头

//MARK: - Take image
func takePhotoLib() { 
    guard UIImagePickerController.isSourceTypeAvailable(.photoLibrary) else { 
        return
    }
    selectImageFrom(.photoLibrary)
}

//MARK: - Take image
func takePhotoCamera() {
    guard UIImagePickerController.isSourceTypeAvailable(.camera) else { 
        return
    }
    selectImageFrom(.camera)
}