jieWang2的博客

string转hexstring 对string 进行扩展var toHexString:String? { let data = self.data(using: .utf8) guard let data = data else { return nil } let bytes = [Byte](data) var hexStr = "" for idx in 0..<d.

extension UIViewController { static var current:UIViewController? { let delegate = UIApplication.shared.delegate as? AppDelegate var current = delegate?.window.rootViewController while (current?.presentedViewControlle.

let statusHeight:CGFloat = { if #available(iOS 13.0, *) { let scene = UIApplication.shared.connectedScenes.first as? UIWindowScene let frame = scene?.statusBarManager?.statusBarFrame return frame?.height ?? 0 } else { re.

隐藏返回文字UIBarButtonItem.appearance() .setBackButtonTitlePositionAdjustment(UIOffset( horizontal: -200,vertical: 0), for: .default) 上面的方法有个问题是返回的时候这个会显示出来然后又消失,可以将文字颜色设置为透明,并且将普通模式的文字和高亮模式的文字都改为透明

textfiled 输入框的输入实时显示在content的Label上 并且在number Label上实时显示输入字数, 并且最大输入字数为10实现:首先将textfield的输入与content的显示 进行绑定 textField.rx.text.asObservable() .bind(to: content.rx.text) .disposed(by: disposed)将textfield的输入与number的显示绑定的时...

Swfit在pod install 后导入头文件不提示,报错 或者pods里第三方报错解决办法:build Phases --> Link Binary With Libraries删除Pods_framework 再重新添加最好clean一下工程 然后bulid项目等待bulid成功

废话不多说上代码private var key: Void?extension MyClass{ var b:String? { get{ objc_getAssociatedObject(self, &key) as? String } set{ objc_setAssociatedObject(self, &key, newValue, .OBJC_ASSOCIATION_RETA