![](/img/trans.png)
[英]How to present ViewController as popup VC with transparent background?
[英]How to make a transparent background of Popup ViewController?
我有一個ViewController作為彈出窗口,可以在UIDatePicker上選擇一個日期。 但是,當此彈出窗口打開時,背景將被新的背景色覆蓋。 我嘗試選擇顏色的不透明度,但這不起作用。 我使用UILabel處理單擊並打開一個新的ViewController。
override func viewDidLoad() {
super.viewDidLoad()
let tapDateSelectExpiration = UITapGestureRecognizer(target: self, action: #selector(handleSelectDateExpiration))
let tapDateSelectValidity = UITapGestureRecognizer(target: self, action: #selector(handleSelectDateValidity))
let tapDateSelectOrder = UITapGestureRecognizer(target: self, action: #selector(handleSelectDateOrder))
lblDataPedido.isUserInteractionEnabled = true
lblDataValidade.isUserInteractionEnabled = true
lblDataExpiracao.isUserInteractionEnabled = true
lblDataPedido.addGestureRecognizer(tapDateSelectOrder)
lblDataValidade.addGestureRecognizer(tapDateSelectValidity)
lblDataExpiracao.addGestureRecognizer(tapDateSelectExpiration)
}
@objc func handleSelectDateExpiration(_ sender : UILabel) {
print("handleSelectDateExpiration")
var vcSelectDate = self.storyboard?.instantiateViewController(withIdentifier: "ViewControllerSelectDate") as! ViewControllerSelectDate
vcSelectDate.typeDate = "DateExpiration"
self.present(vcSelectDate,animated: true,completion: nil)
}
// Other funcs as above.
MainLayout:
帶有背景的DatePicker布局不透明:
故事板:
你可以試試
let vc = self.storyboard?.instantiateViewController(withIdentifier: "dateView") as! dateViewController
vc.delegate = self
vc.providesPresentationContextTransitionStyle = true;
vc.definesPresentationContext = true;
vc.modalPresentationStyle = UIModalPresentationStyle.overCurrentContext
self.present(vc, animated: false, completion: nil)
然后選擇像這樣的透明背景
或在IB
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