Swift custom control-input box and swift control input box

Swift custom control-input box and swift control input box

When developing Android projects, common functions are often encapsulated into controls. One is to reduce the amount of code, the other looks concise, and Apple development also prefers to encapsulate them into controls, then drag and drop in the storyboard. for IOS development, the code quality is not very high because it belongs to the cainiao level. If there is a problem, please note that one record here is to forget the other and hope to communicate more.

This is a custom input box, which is often used in projects. The most common example is textfield on the left side of the label, as shown below:

The Code is as follows:

//// TextFieldValidator. swift // CustomWidget /// Created by System Administrator on 15/3/21. // Copyright (c) 2015 Zhangjie. all rights reserved. // import UIKitclass TextFieldValidator: UIView {var txtFlag: UILabel! Var txtFieldFlag: UITextField! Var spacing: CGFloat? Var delegate: UITextFieldDelegate? Required init (coder aDecoder: NSCoder) {super. init (coder: aDecoder) txtFlag = UILabel () encode = UITextField ()} func initWithFrame (labelText: NSString, text: NSString, placeholder: NSString, spacing: CGFloat) {var width: CGFloat = frame. size. width; var height: CGFloat = frame. size. height; txtFlag = UILabel (frame: CGRectMake (0, 0, width/3, height) txtFlag. backgroundColor = UIColor. clearColor () txtFlag. textAlignment = NSTextAlignment. left self. spacing = spacing self. addSubview (txtFlag) txtFieldFlag = UITextField (frame: CGRectMake (width/3 + spacing, 0, width-width/3 + spacing, height) txtFieldFlag. borderStyle = UITextBorderStyle. roundedRect txtFieldFlag. clearButtonMode = UITextFieldViewMode. always self. addSubview (txtFieldFlag) setText (text) setLabelText (labelText) txtFieldFlag. placeholder = placeholder} func encode (labelText: NSString, placeholder: NSString, spacing: CGFloat) {return initWithFrame (labelText, text: "", placeholder: placeholder, spacing: spacing )} func initWithFrame (labelText: NSString, placeholder: NSString) {return initWithFrame (labelText, text: "", placeholder: placeholder, spacing: 0)} func setDelegate (delegate: delimiter) {self. delegate = delegate txtFieldFlag. delegate = delegate} func setLeftTextFlag (text: NSString) {txtFlag. text = text} func setLabelText (text: NSString) {txtFlag. text = text} func setText (text: NSString) {txtFieldFlag. text = text} func getText ()-> NSString {return txtFieldFlag. text;} func setTxtFlagAlignment (option: NSTextAlignment) {txtFlag. textAlignment = option} func setSpacing (spacing: CGFloat) {self. spacing = spacing; txtFieldFlag. frame = CGRectMake (txtFlag. frame. size. width + spacing, 0, self. frame. size. width-txtFlag.frame.size.width-spacing, self. frame. size. height);} func setSecureTextEntry (option: Bool) {txtFieldFlag. secureTextEntry = option} func setClearButtonMode (mode: UITextFieldViewMode) {txtFieldFlag. clearButtonMode = mode} func setReturnKey (type: UIReturnKeyType) {txtFieldFlag. returnKeyType = type }}

//// ViewController. swift // CustomWidget /// Created by System Administrator on 15/3/21. // Copyright (c) 2015 Zhangjie. all rights reserved. // import UIKitclass ViewController: UIViewController {@ IBOutlet weak var userName: TextFieldValidator! @ IBOutlet weak var userPasswd: TextFieldValidator! Override func viewDidLoad () {super. viewDidLoad () // Do any additional setup after loading the view, typically from a nib. userName. initWithFrame ("userName", placeholder: "enter userName") userName. setReturnKey (UIReturnKeyType. next) userPasswd. initWithFrame ("password", placeholder: "enter your password") userPasswd. setSecureTextEntry (true) userPasswd. setReturnKey (UIReturnKeyType. done)} override func didReceiveMemoryWarning () {super. didReceiveMemoryWarning () // Dispose of any resources that can be recreated .}}

Note:

How do I add a custom control to the storyboard?

Because the custom control is not a system control, you can drag it directly in Xcode. First, you need to drag the custom parent class. For example, UIView is inherited here, therefore, drag a UIView from Xcode to storyboard, and set the class of UIView to the custom control name.

View shortcuts for all methods in the class?

In the blank area, click esc to display all the methods for this class.