swift UItableViewCell怎么自定义添加控件，设置样式 你可以使用xib，推荐使用，创建cell，同时创建Xib即可，xib上面可以自定义布局注册nibtableView.registerNib(UINib(nibName：\"nibName\"，bundle：mainBundle)，forCellReuseIdentifier：\"cellIdentifier\")；注册类tableView.registerClass(TableViewCell.self，forCellReuseIdentifier：\"cellIdentifier\")数据源func tableView(tableView：UITableView，cellForRowAtIndexPath indexPath：NSIndexPath)->；UITableViewCell {let cell=tableView.dequeueReusableCellWithIdentifier(\"cellIdentifier\"，forIndexPath：indexPath)as。TableViewCellreturn cell；}使用注册类的时候需要手写代码重写init(style：UITableViewCellStyle，reuseIdentifier：String？方法，并在里面进行UI设置ps：网上搜自定义cell教程还是挺多的
swift 自定义view怎么加入到header上 Swift调用OCSwift调用OC的时候需要在MixDemo-Bridging-Header.h文件中导入Swift会引用到的CO类的头文件。首先我们在ViewController.h头文件中声明一个函数：-(void)logYou；然后在实现文件中简单些一下实现：-(void)logYou{NSLog(@\"logyou\")；}然后我们在MixDemo-Bridging-Header.h文件中#import“ViewController.h”文件，command+s保存一下当前的编辑。然后回到SwiftDemo.swift文件中，在LogMe函数里我们调用一下OC的logYou。所以我们现在的逻辑是在OC的viewDidLoad中实例化SwiftDemo然后调用logMe，然后在SwiftDemo里的logMe里面实例化ViewController然后调用它的logYou。logMe代码如下：publicfunclogMe(){print(\"logme\")；letvc=ViewController()vc.logYou()}然后再跑一下工程
如何在swift中自定义基本类型Bool BooleanThe boolean Bool type in Swift underlies a lot of primitive functionality，making it an interesting demonstration of how to build a simple type.This post walks through the creation of a new MyBool type designed and implemented to be very similar to the Bool type built into Swift.We hope this walk through the design of a simple Swift type will help you better understand how the language works.Let’s start with the basic definition.The MyBool type models two different cases，perfect for an enum：enum MyBool {case myTrue，myFalse}To reduce confusion in this post，we’ve named the cases myTrue and myFalse.We want MyBool()to produce a false value，and can do so by providing an init method：extension MyBool {init(){ self=.myFalse }}Swift enum declarations implicitly scope their enumerators within their body，allowing us to refer toMyBool.myFalse and even.myFalse when a contextual type is available.However，we want our type to work with the primitive true and false literal 。
