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將Xcode版本升級到8,我發現很多問題,我仍然在將swift2.3版本幾乎修復爲swift3。我的問題之一是所有自定義UITextfield根本無法在我的項目中顯示空白。以下是我的自定義UITextfield,以及如何解決在swift3中正確顯示的問題。Swift3中UITextfield子類中的幀大小不正確
import UIKit
class OvalTextField: UITextField, UITextFieldDelegate {
required init(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)!
createBorder()
}
func textField(_ textField: UITextField, shouldChangeCharactersIn range: NSRange, replacementString string: String) -> Bool {
let finalString = textField.text! + string;
if (finalString != "") {
textField.rightView?.isHidden = true
}
return true
}
required override init(frame: CGRect) {
super.init(frame: frame)
createBorder()
}
func createBorder(){
let errorImg = UIImageView (frame: CGRect(x: 0, y: 0, width: 30, height: 30))
errorImg.image = UIImage(named: "error")
errorImg.contentMode = UIViewContentMode.left
self.delegate = self
self.layer.borderWidth = 1.0
self.layer.borderColor = UIColor(red:0.93, green:0.93, blue:0.93, alpha:1.0).cgColor
self.layer.cornerRadius = self.frame.size.height/2
self.layer.masksToBounds = true
let gapLabel = UIView (frame: CGRect(x: 60, y: 0, width: 20, height: 40))
self.leftView = gapLabel
self.leftViewMode = UITextFieldViewMode.always
/* Display that one when validation is failed */
self.rightView = errorImg;
self.rightViewMode = UITextFieldViewMode.always
}
}
'讓ovTxtFld = OvalTextField(幀:的CGRect(X:0 ,y:20,width:200,height:20)) self.view.addSubview(ovTxtFld)' –
我在故事板中添加了自定義UITextfield因此上述代碼根本不需要。 – ppshein
那麼你的問題是什麼? –