从我的 UIView 截图并将其保存为图像或 PDF Swift 5, Xcode 13, iPad

Question

在此处找到： How do I take a full screen Screenshot in Swift?

func getScreenshot() -> UIImage {
    var window: UIWindow? = UIApplication.shared.keyWindow
    window = UIApplication.shared.windows[0] as? UIWindow
    UIGraphicsBeginImageContextWithOptions(window!.frame.size, window!.isOpaque, 0.0)
    window!.layer.render(in: UIGraphicsGetCurrentContext()!)
    let image = UIGraphicsGetImageFromCurrentImageContext()
    UIGraphicsEndImageContext()
    return image!
}

我想使用此代码从我的 viewcontroller 获取图像。之后我想将图像保存到我的照片库中以便打印和通过邮件发送。

仅当我在 return 图像的倒数第二行中添加此代码时！：

 UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)

，我收到“信号 SIGABRT”错误。

在我的 info.plist 中，我尝试添加：Privacy - Photo Library Usage Description 没有任何价值。谁能帮我找出问题所在？另一种选择是将屏幕截图以 pdf 格式保存在任何文件夹中，以便稍后在发送和打印时找到它。感谢您的任何提示。

Answer 1

使用NSPhotoLibraryAddUsageDescription (Privacy - Photo Library Additions Usage Description)

NSPhotoLibraryAddUsageDescription

A message that tells the user why the app is requesting write-only access to the user’s photo library.

Important

This key is required if your app uses APIs that have write access to the user’s photo library.

从我的 UIView 截图并将其保存为图像或 PDF Swift 5, Xcode 13, iPad

Screenshot from my UIView and save it as Image or PDF Swift 5, Xcode 13, iPad

ios

swift

ipad

screenshot

photo-gallery

NSPhotoLibraryAddUsageDescription