配置区

info 配置

Custon IOS Target Properties
- Suppprted interface orientations 设置配置横屏竖屏

开发期间允许使用, http请求设置(上线前必须都是https请求!!!上线前必须都是https请求!!!上线前必须都是https请求!!!,)

本地化中文

系统自带控件的文字都会变成中文

文件导入Xcode

CocoaPads 依赖管理工具

命令行操作

安装:
sudo gem install cocoapods
命令行操作：
pod init                    初始化项目
pod install                 下载依赖
pod install --repo-update   更新依赖 PS: 删除同级目录下的 “Pods” 目录与Podfile.lock文件
pod repo update             更新依赖索引 库pod 'XXXX', '~> 0.0'         下载指定依赖

M1芯片 在 pod install 报错

解决方案
1.终端输入以下内容以安装"ffi"
sudo arch -x86_64 gem install ffi
2.终端输入以下内容以继续pod操作（也就是在原本的命令前面加上arch -x86_64）
arch -x86_64 pod install
以后pod install时只需做第二步即可。

UI区 + 代码

通用

打开新页面方式

按住 ctrl 拖拽 到目标页面
// show : 从右边向左打开(测试也是 从下向上打开)
Present Modally : 从下向上打开

设置新开页面全屏展示

跳转页面 正向传值

方法1

class AController: UIViewController {override func prepare(for segue: UIStoryboardSegue, sender: Any?) {if let vc = segue.destination as? BVC {vc.address = "赋值信息"} else if let vc = segue.destination as? CVC {vc.address = "赋值信息"}}
}class BVC: UIViewController{var address = ""@IBOutlet weak var addressLabel: UILabel!override func viewDidLoad() {super.viewDidLoad()self.addressLabel.text = address}
}

方法2

设置 identifier 参数

class AController: UIViewController {override func prepare(for segue: UIStoryboardSegue, sender: Any?) {if segue.identifier == "QueryVCSegue"{let vc = segue.destination as! BVCvc.address = "赋值信息"}}
}class BVC: UIViewController{var address = ""@IBOutlet weak var addressLabel: UILabel!override func viewDidLoad() {super.viewDidLoad()self.addressLabel.text = address}
}

页面跳转 反向传值

发送信息配置

protocol BVCDelegate {func didChangCity(city: String)
}class BVC: UIViewController{var delegate: BVCDelegate?@IBAction func query(_ sender: Any) {// 关闭页面dismiss(animated: true)//   给BVCDelegate 方法传数据delegate?.didChangCity(city:"传输数据内容..")}

接受信息配置

// 添加  Delegate 协议
class AVC: UIViewController, BVCDelegate {//    在 prepare 方法中override func prepare(for segue: UIStoryboardSegue, sender: Any?) {if let vc = segue.destination as? BVC {// 当前类信息 挂载给 目标  Delegatevc.delegate = self} }//   从添加的   Delegate 协议 方法中,拿去反向传值的内容func didChangCity(city: String) {print(city)}}

页面关闭 Kind Present Modally

    @IBAction func back(_ sender: Any) {dismiss(animated: true)}

Stack View 布局

配置说明

边距推荐尺寸

父视图边距20, 子视图边距8

// 获取页面宽度, 不能赋值
view.frame.width
//  获取页面宽度, 可以赋值
view.frame..size.width

设置屏幕比例宽度

拖拽到需要等比的视图,选择 equal width

点击进入 设置比例

UILabel 标签

行数展示

赋值文本

self.UILabel对象.text = “设置文本”

UITextField

弹起软键盘

textField.becomeFirstResponder()

UIButton 按钮

注意事项

快捷键 Command = 按照内容大小进行布局

无法设置Button文字大小,和字体颜色

设置 内容大小

按钮设置背景图案

根据空间最大的完整展示背景图片内容

设置当前按钮为点击状态

cellButton.isSelected = true

删除选中后按钮背景色

cellButton.tintColor = .clear

UIImageView 图片

图片拉伸方式

navigationItem

设置导航栏图标大小

        navigationItem.rightBarButtonItem?.image = UIImage(systemName: "plus.circle.fill", withConfiguration: UIImage.SymbolConfiguration(pointSize: 22))

赋值图片

self.UIImageView对象.image = UIImage(named: “图片名称”)

Table 表格

添加右侧箭头

滑动删除

    // Override to support editing the table view.override func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {if editingStyle == .delete {// Delete the row from the data source//  删除该行todos.remove(at: indexPath.row)tableView.deleteRows(at: [indexPath], with: .fade)} else if editingStyle == .insert {// Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view}    }//  重写滑动删除文字override func tableView(_ tableView: UITableView, titleForDeleteConfirmationButtonForRowAt indexPath: IndexPath) -> String? {return "点击删除"}

Text View

多行文本输入框

判断是否为非空

//    判断是否为非空
if !todoTextView.text.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty{print("内容非空")print(todoTextView.text)
}

光标定位 聚焦

todoTextView.becomeFirstResponder()

text内容变化时调用改方法

class AVC: UITableViewController {@IBOutlet weak var todoTextView: UITextView!override func viewDidLoad() {super.viewDidLoad()//  也可以在视图上操作todoTextView.delegate = self}
}extension AVC: UITextViewDelegate{// text内容变化时调用改方法func textViewDidChange(_ textView: UITextView){//  让tableview 重新布局(带动画), 会根据storyboard上定的约束换行或减行//  老版本方法//  tableView.beginUpdates()//  tableView.endUpdates()//  新版本方法tableView.performBatchUpdates{}}
}

Tab Bar Controller 底部标签栏

添加页面

方法一: 按住ctrl 拖拽到指定页面 选择 view controllers

方法二: 按步骤选择view controllers

方法三: 批量添加

Tab Bar Item

本地存储

获取沙盒地址

print(NSHomeDirectory())

UserDefaults.standard.set(“内容”, forkey: “名字”)

// 要存储的实体类需要实现 Encodable, Decodable 合为 Codable
struct Todo: Codable {var name: Stringvar checked: Bool
}do {// 编码后进行存储let data = try JSONEncoder().encode(todos)UserDefaults.standard.set(data, forkey: "todos")
} catch {print("编码错误:", error)
}// 拿取数据
if let data = UserDefaults.standard.data(forKey: "todos") {if let todos = try? JSONDecoder().decode([Todo].self, from: data) {self.todos = todos} else {print("解码失败")}
}

CoreData

创建实体类

// 获取 app委托
let appDelegate = (UIApplication.shared.delegate as! AppDelegate)
// 获取 app上下文
let context = appDelegate.persistentContainer.viewContext// 创建对象
let todo = Todo(context: context)
todo.name = "name"
todo.checked = false
// 保存
appDelegate.saveContext()// 删除数据
context.delete(todos[indexPath.row])
// 保存
appDelegate.saveContext()//修改数据
todos[row].name = "name"
// 保存
appDelegate.saveContext()// 读取数据
if let todos = try? context.fetch(Todo.fetchRequest()){self.todos = todos
}else {print("从SQLite去数据失败)
}

代码区

通用

App的生命周期-AppDelegate和SceneDelegate

AppDelegate

import UIKit
import CoreData//包含App的部分生命周期函数(钩子函数),也有其余函数(如推送)
@main
class AppDelegate: UIResponder, UIApplicationDelegate {func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {// Override point for customization after application launch.print("App启动")return true}// MARK: UISceneSession Lifecycle//iOS的App只有一个场景(只有一个窗口)func application(_ application: UIApplication, configurationForConnecting connectingSceneSession: UISceneSession, options: UIScene.ConnectionOptions) -> UISceneConfiguration {// Called when a new scene session is being created.// Use this method to select a configuration to create the new scene with.print("即将创建一个窗口时.在此可配置一个可视窗口")return UISceneConfiguration(name: "Default Configuration", sessionRole: connectingSceneSession.role)}func application(_ application: UIApplication, didDiscardSceneSessions sceneSessions: Set<UISceneSession>) {// Called when the user discards a scene session.// If any sessions were discarded while the application was not running, this will be called shortly after application:didFinishLaunchingWithOptions.// Use this method to release any resources that were specific to the discarded scenes, as they will not return.print("用户关闭了某个窗口")}// MARK: - Core Data stacklazy var persistentContainer: NSPersistentContainer = {/*The persistent container for the application. This implementationcreates and returns a container, having loaded the store for theapplication to it. This property is optional since there are legitimateerror conditions that could cause the creation of the store to fail.*/let container = NSPersistentContainer(name: "Todos")container.loadPersistentStores(completionHandler: { (storeDescription, error) inif let error = error as NSError? {// Replace this implementation with code to handle the error appropriately.// fatalError() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development./*Typical reasons for an error here include:* The parent directory does not exist, cannot be created, or disallows writing.* The persistent store is not accessible, due to permissions or data protection when the device is locked.* The device is out of space.* The store could not be migrated to the current model version.Check the error message to determine what the actual problem was.*/fatalError("Unresolved error \(error), \(error.userInfo)")}})return container}()
}

SceneDelegate

import UIKit//包含App的UI方面的生命周期函数,也有其余函数(如从别的App跳转回来时)
class SceneDelegate: UIResponder, UIWindowSceneDelegate {var window: UIWindow?func scene(_ scene: UIScene, willConnectTo session: UISceneSession, options connectionOptions: UIScene.ConnectionOptions) {// Use this method to optionally configure and attach the UIWindow `window` to the provided UIWindowScene `scene`.// If using a storyboard, the `window` property will automatically be initialized and attached to the scene.// This delegate does not imply the connecting scene or session are new (see `application:configurationForConnectingSceneSession` instead).print("若使用IB,则自动创建可视窗口;若不使用IB,则可在此利用window属性(可视窗口),然后用代码设定App的首页vc")guard let _ = (scene as? UIWindowScene) else { return }}func sceneDidDisconnect(_ scene: UIScene) {// Called as the scene is being released by the system.// This occurs shortly after the scene enters the background, or when its session is discarded.// Release any resources associated with this scene that can be re-created the next time the scene connects.// The scene may re-connect later, as its session was not necessarily discarded (see `application:didDiscardSceneSessions` instead).print("窗口/App已经断开连接(1.关闭App时调用,2.退到后台后不久调用)")}//App主要有三种状态:被关闭,在前台,在后台//下面两个方法对应的范围更广,如App关闭时,用户点击推送横幅后打开App,也会调用sceneDidBecomeActive,此时可清楚右上角角标func sceneDidBecomeActive(_ scene: UIScene) {// Called when the scene has moved from an inactive state to an active state.// Use this method to restart any tasks that were paused (or not yet started) when the scene was inactive.print("窗口/App从非活跃-->活跃(已经被激活)")}func sceneWillResignActive(_ scene: UIScene) {// Called when the scene will move from an active state to an inactive state.// This may occur due to temporary interruptions (ex. an incoming phone call).print("窗口/App从活跃-->非活跃(即将被挂起)")}func sceneWillEnterForeground(_ scene: UIScene) {// Called as the scene transitions from the background to the foreground.// Use this method to undo the changes made on entering the background.print("窗口/App从后台-->前台(即将回到前台)")}func sceneDidEnterBackground(_ scene: UIScene) {// Called as the scene transitions from the foreground to the background.// Use this method to save data, release shared resources, and store enough scene-specific state information// to restore the scene back to its current state.print("窗口/App从前台-->后台(已经进入后台)")// Save changes in the application's managed object context when the application transitions to the background.(UIApplication.shared.delegate as? AppDelegate)?.saveContext()}
}

    // 页面即将出现的时候override func viewWillAppear(_ animated: Bool) {<#code#>}// 页面已经出现了override func viewDidAppear(_ animated: Bool) {<#code#>}// 页面即将关闭的时候override func viewWillDisappear(_ animated: Bool) {<#code#>}// 页面已经关闭override func viewDidDisappear(_ animated: Bool) {<#code#>}

类

区别
class 需要创建初始化构造器
struct 自动创建初始化构造器; 可以不初始化默认值

// 类
class Todo{var name = ""
}// 结构体
// 可以默认生成初始化构造器
struct Todo{var name : String
}

去除空格换行, 并且判空

if !cityTextField.text!.trimmingCharacters(in: .whitespacesAndNewlines).isEmpty{delegate?.didChangCity(city: cityTextField.text!)}

类型转换

转String

let x = xx
let x = "\(xx)"
let x = String(xx)

转Int

let x = Int(1.9)        <= 1 去除小数点后
let x = round(1.9)     <= 2 四舍五入

转Double

let x = Double(1)

类型转换

class A{}
class B:A{}let a=A()
let b=B()b as A            <= 向上转型
a as! B         <= 向下转型 转型失败报错
a as? B         <= 向下转型 转型失败为null

数据去反 true 为 false

.toggle()

alert 弹出框

            //  title: "标题", message: "内容", preferredStyle: 样式let alert = UIAlertController(title: "标题", message: "内容....", preferredStyle: .alert)// 点击按钮 (需要多个点击按钮就添加一个 addAction)alert.addAction(UIAlertAction(title:"确认按钮",style: .default,//  闭包handler: { _ inNSLog("The \"OK\" alert occured.")}))alert.addAction(UIAlertAction(title: "取消按钮",style: .destructive,//  闭包handler: { _ inNSLog("The \"NO\" alert occured.")}))// 弹出配置好的alert 对象, animated: 动画效果self.present(alert,animated: true,completion: {NSLog("按钮点击后的回调函数!")})

播放声音

  // 要是成员变量, 若是局部变量,还没播放完毕,就会和方法一起销毁var player : AVAudioPlayer!@IBAction func play(_ sender: UIButton) {//获取文件路径let url = Bundle.main.url(forResource: "note\(sender.tag)", withExtension: "wav")!do{// 配置音频文件路径player = try AVAudioPlayer(contentsOf: url )//  播放文件声音player.play()}catch{print(error)}}

摇一摇

    // 摇一摇后 调用override func motionEnded(_ motion: UIEvent.EventSubtype, with event: UIEvent?) {print("摇一摇后 调用")}

获取当前位置

1: Info.plist 添加声明 Privacy - Location When In Use Usage Description

2.代码获取位置示例

//
//  ViewController.swift
//  weather
//import UIKit
import CoreLocation//  添加协议 CLLocationManagerDelegate
class ViewController: UIViewController, CLLocationManagerDelegate {//  位置管理器let locationManager = CLLocationManager()override func viewDidLoad() {super.viewDidLoad()// 请求授权获取当前位置locationManager.requestWhenInUseAuthorization()// 当前类信息 挂载给 目标  DelegatelocationManager.delegate = self//  获取当前位置//  kCLLocationAccuracyBestForNavigation: 使用额外的传感器数据来促进导航应用程序的最高精度。//  kCLLocationAccuracyBest: 可用的最佳精度水平。//  kCLLocationAccuracyNearestTenMeters: 精确到距离预定目标十米以内。//  kCLLocationAccuracyHundredMeters: 精确到百米以内。//  kCLLocationAccuracyKilometer: 精确到最近的一公里。//  kCLLocationAccuracyThreeKilometers: 精确到最近的3公里。//  kCLLocationAccuracyReduced: 当应用程序没有被授权获得完整的精确位置数据时，使用的精确级别。locationManager.desiredAccuracy = kCLLocationAccuracyThreeKilometers//  请求当前位置locationManager.requestLocation()}func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {//  获取经度let lon = locations[0].coordinate.longitude//  获取纬度let lat = locations[0].coordinate.latitudeprint(lon)print(lat)}func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {print("位置获取失败...")}}

IOS Swift 入门学习汇总 (更新中..)相关推荐

1. hibernate入门学习（更新中）

   学习地址 文件 1 官网课件与源码(带jar包) 2 课件-百度云 提取码:xj15 3 dtd :官网下载(作用:使没网情况下依然可以用dtd) 问题 问题1:下载hibernate tools 问 ...

2. 粤嵌实验板 linux 环境,粤嵌linux基础入门学习 linux系统中添加系统调用

   linux系统中添加系统是怎样调用的?从linux基础入门学习出发,一起来看看: 1.每个体系下面均有对应的系统调用列表: arch/arm/kernel/calls.S 在最后添加一个新的系统调用标 ...

3. web前端开发入门笔记（更新中）

   前言 假期曾上过6节HTML与微信小程序开发基础课,对前端开发有所了解,今天上完大英就开始看了下课程,出乎意料的易于接受,也许是之前打下的基础,但还是系统地学习比较好,毕竟作为一门知识. 此外,有兴趣 ...

4. VSTO开发入门教程[持续更新中......]

   Paragraph 01 VSTO课程学习路线图[持续更新中......] 第一阶段:熟悉 visual studio 编程环境 1.1--理解 VSTO 的概念 1.2--安装 visual stu ...

5. python+Django学习资源汇总-更新中

   Python 教程 Python 3.7.4 文档 Python 基础教程 Python教程 Python入门 python+django搭建web项目 Python Django(WEB电商项目构建 ...

6. 单片机入门学习单片通信协议学习笔记....更新中

   单片机各类通信协议 --来自于bilbil金善愚老 一.1-wire单总线 概述: 采用单根信号线既传输时钟又传输数据且数据传输是双向的.(单总线器件芯片有编制唯一的序列号(芯片通信地址)) 适用范围 ...

7. swift 错误集合 ------持续更新中

   从今天开始凡是在用swift中遇到的错误都会在本博客持续更新 便于自己学习和快速开发 2017.7.20 如果你的程序写的有进入后台的方法,例如我的博客中点击home进入后台持续定位的那篇文章,发信进 ...

8. 【C++】C/C++系列教程汇总(更新中......)

   文章目录 01. C语言基础 02. C开发实战 03. 数据结构 04. C++语言基础 05. C++核心编程 06. C++开发实战 07. MFC 08. QT 09. Visual Stud ...

9. swift入门学习笔记

   作为ios开发语言,swift是一门新生语言,大部分时代潮流技术也在其中,而且有自己独有的一些技巧在其中,非常值得学习. 收录:原文地址 目录 语法 · 说明 · 基础 变量以及常量 元组 可选类型 ...

最新文章

1. CentOS与RedHat的关系
2. 深度学习100例 - 卷积神经网络（CNN）实现车牌识别 | 第15天
3. C++突破private的方案
4. Django MTV 开发模式 + 数据库配置
5. python数据挖掘电影评分分析_Pyhon数据分析项目——男女电影评分差异比较
6. TCP连接建立与释放
7. 【熵】熵，KL散度，交叉熵,最大熵模型
8. jQuery基础之核心函数，jQuery对象及伪数组 静态方法和实例方法的定义，各种静态方法（each,map,holdRedady,trim,isWindow,isArray,isFunction)
9. 计算机网络与信息安全公务员,计算机网络技术专业考公务员有些职位？
10. android sdk救黑砖,华为EC6108 V9C 8G 救黑砖教程及固件下载
11. win10修复计算机摁什么,win10修复引导的方法教程
12. web返回的数据集格式_200G倾斜数据无插件web端预览！兼容三端，有容乃大—MapGIS M3D数据格式...
13. 计算机网络常见面试题目总结，含答案
14. @分词算法FMM（正向最大匹配）
15. 怎么联系vue客服_Vue在线客服系统【开源项目】
16. PMP学习笔记之一 准备篇
17. 当vue3+vite创建的项目，报错“找不到模块“@/utils/index”或其相应的类型声明”
18. android最新版本下载vivo,vivo浏览器最新版下载-vivo浏览器 安卓版v7.6.16.1-PC6安卓网...
19. 利用canvas实现钟表效果
20. vs2010出现RC1015: cannot open include file 'activ...

热门文章

1. 高速总线之一：XAUI 接口
2. jsp中EL表达式显示时中文乱码
3. SpringBoot配置Mybatis多数据源
4. 沁路墨彦文集：《闭关与梦的思索》
5. 什么是4D（DRG、DLG、DOM、DEM）数据？（转自gisriver的空间）
6. 自动阅读脚本root的好还是免root的好？
7. 计算机房电磁辐射防护,计算机机房电磁波的防护要求
8. Servlet/JSP（2）-数据共享（Cookie Session等），分页
9. 【官网文档】机器学习术语表
10. Echarts仪表盘刻度线和标签配置