1
我想獲取當前屏幕的截圖,所以當我覆蓋我的下一個視圖控制器時,我可以使其背後的圖像視圖顯示爲半透明。這工作,但現在它在中間產生一些奇怪的灰色。這裏是我使用的代碼:屏幕截圖 - 奇怪的灰色區域
func requestOverride(overrideReason : String, notificationName : Notification.Name) {
captureScreen { (image) in
ManagerOverride.image = image
let vc = UIStoryboard(name: "ManagerOverride", bundle: nil).instantiateViewController(withIdentifier: "overrideNav") as! UINavigationController
let over = vc.viewControllers.first as! ManagerOverrideViewController
let _ = over.view
over.overrideReason.text = overrideReason
over.notifyName = notificationName
UIApplication.shared.keyWindow?.currentViewController()?.present(vc, animated: true, completion: nil)
}
}
func captureScreen(completion: @escaping (UIImage) ->()) {
let view = UIApplication.shared.keyWindow!.currentViewController()!.view!
UIGraphicsBeginImageContextWithOptions(view.bounds.size, false, UIScreen.main.scale)
view.layer.render(in: UIGraphicsGetCurrentContext()!)
let image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
completion(image!)
}
這裏就是我找回:
我不知道爲什麼它這樣做