iOS（二）：Swift纯代码模式plist文件读写（真机有效）

怼烎@ 2024-03-25 20:53 44阅读 0赞

#### Swift纯代码模式plist文件读写（真机有效） ####

*   *  来吧，展示
     *  安装UI布局库
     *  目录结构
     *  页面布局
     *  点击非输入区域时隐藏软键盘
     *  添加点击事件
     *  创建plist文件
     *  增、删、改、查
     *   *  增
         *  删
         *  改
         *  查
     *  拓展String类
     *  源码

### 来吧，展示 ###

![在这里插入图片描述][fa183fec8531474889baa5f03bacbf7c.gif_pic_center]

### 安装UI布局库 ###

pod 'TangramKit'

### 目录结构 ###

![在这里插入图片描述][33459245b15f4107add3acfffc144c65.png]

### 页面布局 ###

### 点击非输入区域时隐藏软键盘 ###

/// 点击其他区域隐藏软键盘
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        
        view.endEditing(true)
    }

### 添加点击事件 ###

let addBtn = btnView(title: "增")
    let delBtn = btnView(title: "删")
    let editBtn = btnView(title: "改")
    let searchBtn = btnView(title: "查")
    btnLayout.addSubview(addBtn)
    btnLayout.addSubview(delBtn)
    btnLayout.addSubview(editBtn)
    btnLayout.addSubview(searchBtn)
    addBtn.addTarget(self, action: #selector(add),for: .touchUpInside)
    delBtn.addTarget(self, action: #selector(del),for: .touchUpInside)
    editBtn.addTarget(self, action: #selector(edit),for: .touchUpInside)
    searchBtn.addTarget(self, action: #selector(search),for: .touchUpInside)
    
    
    /// 增
    @objc func add() {
        
        let id = id.textField.text!
        let name = name.textField.text!
        let sex = sex.textField.text!
        let age = age.textField.text!
    }
    
    /// 删
    @objc func del() {
        
        let id = id.textField.text!
    }
    
    /// 改
    @objc func edit() {
        
        let id = id.textField.text!
        let name = name.textField.text!
        let sex = sex.textField.text!
        let age = age.textField.text!
    }
    
    /// 查
    @objc func search() {
        
        let id = id.textField.text!
    }

### 创建plist文件 ###

> ⚠️：`解决真机无法写入问题`

/// plist文件路径
    var path: String = ""
    
    
    createFile()
    
    
    /// 创建文件（用于真机内使用）
    func createFile() {
        
        
        let fileManager = FileManager()
        
        // 取沙盒里plist文件
        let documentDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
        path = (documentDirectory[0] as AnyObject).appendingPathComponent("Data.plist")
        
        // 判断沙盒的Data.plist文件是否存在
        if (fileManager.fileExists(atPath: path) != true) {
        
            // 资源里的Data.plist文件
            let filePath = Bundle.main.path(forResource: "Data", ofType: "plist")
            do {
        
                // 复制文件
                try fileManager.copyItem(atPath: filePath!, toPath: path)
                // 展示文件路径
                label.text = (documentDirectory[0] + "\n" + path + "\n" + filePath!.description)
            }
            catch let error as NSError {
        
                label.text = error.description
            }
        }
        
    }

### 增、删、改、查 ###

#### 增 ####

/// 增
    @objc func add() {
        
        let id = id.textField.text!
        let name = name.textField.text!
        let sex = sex.textField.text!
        let age = age.textField.text!
        
        if id == "" {
        
            label.text = "请输入ID"
            return
        }
    
        let data = NSMutableArray(contentsOfFile: path)
        data?.add(["id": id, "name": name, "sex": sex, "age": age])
        data?.write(toFile: path, atomically: true)
        
        label.text = "新增成功"
    }

#### 删 ####

/// 删
    @objc func del() {
        
        let id = id.textField.text!
        
        if id == "" {
        
            label.text = "请输入ID"
            return
        }
        
        let data = NSMutableArray(contentsOfFile: path)
        for el in data! {
        
            let d = el as! NSDictionary
            if (d["id"] as! String) == id {
        
                data?.remove(d)
            }
        }
        data?.write(toFile: path, atomically: true)
        
        label.text = "删除成功"
    }

#### 改 ####

/// 改
    @objc func edit() {
        
        let id = id.textField.text!
        let name = name.textField.text!
        let sex = sex.textField.text!
        let age = age.textField.text!
        
        if id == "" {
        
            label.text = "请输入ID"
            return
        }
        
        let data = NSMutableArray(contentsOfFile: path)
        data?.forEach({
         el in
            let d = el as! NSMutableDictionary
            if (d["id"] as! String) == id {
        
                d["name"] = name
                d["sex"] = sex
                d["age"] = age
            }
        })
        data?.write(toFile: path, atomically: true)
        
        label.text = "修改成功"
    }

#### 查 ####

/// 查
    @objc func search() {
        
        let id = id.textField.text!
        
        let data = NSArray(contentsOfFile: path)
        if id == "" {
        
            label.text = "\(path)\n\(data!.description)"
        }
        else {
        
            let res = data?.filter({
         el in
                let d = el as! NSDictionary
                return d["id"] as! String == id
            })
            label.text = "\(path)\n\(res!.description)"
        }
    }

### 拓展String类 ###

> ⚠️：`用于解析unicode`

/// String扩展 (使用示例：data!.description.unicodeToString)
    extension String {
        
        
        /// unicode转一般字符串
        var unicodeToString: String {
        
            let str1 = self.replacingOccurrences(of: "\\u", with: "\\U")
            let str2 = str1.replacingOccurrences(of: "\"", with: "\\\"")
            let str3 = "\"".appending(str2).appending("\"")
            let strData = str3.data(using: String.Encoding.utf8)
            var str: String = ""
            do {
        
                str = try PropertyListSerialization.propertyList(from: strData!, options: [.mutableContainers], format: nil) as! String
            } catch {
        
                print(error)
            }
            return str
        }
        
    }

### 源码 ###

//
    //  ViewController.swift
    //  FileReadWrite
    //
    
    import UIKit
    import TangramKit
    
    class ViewController: UIViewController {
        
        
        /// 结果
        lazy var label: UILabel = {
        
            let v = UILabel()
            v.text = "暂无结果"
            v.textColor = .white
            v.numberOfLines = 0
            v.font = .systemFont(ofSize: 10)
            v.tg_size(width: .fill, height: .wrap)
            v.tg_top.equal(10)
            v.tg_bottom.equal(10)
            v.tg_leading.equal(10)
            v.tg_trailing.equal(10)
            return v
        }()
        
        /// id表单
        lazy var id: FormItemView = {
        
            return formItemView(title: "ID")
        }()
        
        /// name表单
        lazy var name: FormItemView = {
        
            return formItemView(title: "姓名")
        }()
        
        /// sex表单
        lazy var sex: FormItemView = {
        
            return formItemView(title: "性别")
        }()
        
        /// age表单
        lazy var age: FormItemView = {
        
            return formItemView(title: "年龄")
        }()
        
        /// plist文件路径
        var path: String = ""
        
        override func viewDidLoad() {
        
            
            super.viewDidLoad()
            
            view.backgroundColor = .white
            
            // 根组件
            let rootLayout = TGLinearLayout(.vert)
            rootLayout.tg_gravity = TGGravity.vert.fill
            rootLayout.tg_width.equal(.fill)
            rootLayout.tg_top.equal(TGLayoutPos.tg_safeAreaMargin)
            rootLayout.tg_bottom.equal(TGLayoutPos.tg_safeAreaMargin)
            view.addSubview(rootLayout)
            
            // 结果
            let resultLayout = TGLinearLayout(.vert)
            resultLayout.backgroundColor = .black
            resultLayout.tg_size(width: .fill, height: .fill)
            resultLayout.addSubview(label)
            
            // 表单
            let formLayout = TGLinearLayout(.vert)
            formLayout.backgroundColor = .green
            formLayout.tg_gravity = TGGravity.vert.around
            formLayout.tg_size(width: .fill, height: .fill)
            formLayout.addSubview(id.layout)
            formLayout.addSubview(name.layout)
            formLayout.addSubview(sex.layout)
            formLayout.addSubview(age.layout)
            
            // 按钮
            let btnLayout = TGLinearLayout(.vert)
            btnLayout.backgroundColor = .blue
            btnLayout.tg_gravity = TGGravity.vert.around
            btnLayout.tg_size(width: .fill, height: .fill)
            let addBtn = btnView(title: "增")
            let delBtn = btnView(title: "删")
            let editBtn = btnView(title: "改")
            let searchBtn = btnView(title: "查")
            btnLayout.addSubview(addBtn)
            btnLayout.addSubview(delBtn)
            btnLayout.addSubview(editBtn)
            btnLayout.addSubview(searchBtn)
            addBtn.addTarget(self, action: #selector(add),for: .touchUpInside)
            delBtn.addTarget(self, action: #selector(del),for: .touchUpInside)
            editBtn.addTarget(self, action: #selector(edit),for: .touchUpInside)
            searchBtn.addTarget(self, action: #selector(search),for: .touchUpInside)
            
            // 将布局添加至根组件
            rootLayout.addSubview(resultLayout)
            rootLayout.addSubview(formLayout)
            rootLayout.addSubview(btnLayout)
            
            createFile();
        }
        
        /// 点击其他区域隐藏软键盘
        override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        
            view.endEditing(true)
        }
        
        /// 表单
        func formItemView(title: String) -> FormItemView {
        
            
            // 单个表单布局
            let layout = TGLinearLayout(.horz)
            layout.tg_gravity = TGGravity.horz.fill
            layout.tg_size(width: .fill, height: 32)
            layout.tg_leading.equal(10)
            layout.tg_trailing.equal(10)
            
            // Label
            let label = UILabel()
            label.text = title
            label.textColor = .black
            label.tg_size(width: .wrap, height: .fill)
            layout.addSubview(label)
            
            // 输入框
            let textField = UITextField()
            textField.placeholder = "请输入\(title)"
            textField.isEnabled = true
            textField.isUserInteractionEnabled = true
            textField.borderStyle = .roundedRect
            textField.tg_height.equal(.fill)
            textField.tg_leading.equal(10)
            layout.addSubview(textField)
            
            return FormItemView(layout: layout, label: label, textField: textField)
        }
        
        /// 增、删、改、查 按钮
        func btnView(title: String) -> UIButton {
        
            let btn = UIButton()
            btn.setTitle(title, for: .normal)
            btn.setTitleColor(.white, for: .normal)
            btn.backgroundColor = UIColor(red: 90 / 255, green: 156 / 255, blue: 248 / 255, alpha: 1)
            btn.tg_size(width: .fill, height: 32)
            btn.tg_leading.equal(10)
            btn.tg_trailing.equal(10)
            return btn
        }
        
        /// 创建文件（用于真机内使用）
        func createFile() {
        
            
            let fileManager = FileManager()
            
            // 取沙盒里plist文件
            let documentDirectory = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)
            path = (documentDirectory[0] as AnyObject).appendingPathComponent("Data.plist")
            
            // 判断沙盒的Data.plist文件是否存在
            if (fileManager.fileExists(atPath: path) != true) {
        
                // 资源里的Data.plist文件
                let filePath = Bundle.main.path(forResource: "Data", ofType: "plist")
                do {
        
                    // 复制文件
                    try fileManager.copyItem(atPath: filePath!, toPath: path)
                    // 展示文件路径
                    label.text = (documentDirectory[0] + "\n" + path + "\n" + filePath!.description).unicodeToString
                }
                catch let error as NSError {
        
                    label.text = error.description.unicodeToString
                }
            }
            
        }
        
        /// 增
        @objc func add() {
        
            let id = id.textField.text!
            let name = name.textField.text!
            let sex = sex.textField.text!
            let age = age.textField.text!
            
            if id == "" {
        
                label.text = "请输入ID"
                return
            }
        
            let data = NSMutableArray(contentsOfFile: path)
            data?.add(["id": id, "name": name, "sex": sex, "age": age])
            data?.write(toFile: path, atomically: true)
            
            label.text = "新增成功"
        }
        
        /// 删
        @objc func del() {
        
            let id = id.textField.text!
            
            if id == "" {
        
                label.text = "请输入ID"
                return
            }
            
            let data = NSMutableArray(contentsOfFile: path)
            for el in data! {
        
                let d = el as! NSDictionary
                if (d["id"] as! String) == id {
        
                    data?.remove(d)
                }
            }
            data?.write(toFile: path, atomically: true)
            
            label.text = "删除成功"
        }
        
        /// 改
        @objc func edit() {
        
            let id = id.textField.text!
            let name = name.textField.text!
            let sex = sex.textField.text!
            let age = age.textField.text!
            
            if id == "" {
        
                label.text = "请输入ID"
                return
            }
            
            let data = NSMutableArray(contentsOfFile: path)
            data?.forEach({
         el in
                let d = el as! NSMutableDictionary
                if (d["id"] as! String) == id {
        
                    d["name"] = name
                    d["sex"] = sex
                    d["age"] = age
                }
            })
            data?.write(toFile: path, atomically: true)
            
            label.text = "修改成功"
        }
        
        /// 查
        @objc func search() {
        
            let id = id.textField.text!
            
            let data = NSArray(contentsOfFile: path)
            if id == "" {
        
                label.text = "\(path)\n\(data!.description.unicodeToString)".unicodeToString
            }
            else {
        
                let res = data?.filter({
         el in
                    let d = el as! NSDictionary
                    return d["id"] as! String == id
                })
                label.text = "\(path)\n\(res!.description.unicodeToString)".unicodeToString
            }
        }
        
    }
    
    /// 表单类（用于获取单个表单内使用的view）
    class FormItemView {
        
        
        public let layout: TGLinearLayout
        public let label: UILabel
        public let textField: UITextField
        
        public init(layout: TGLinearLayout, label: UILabel, textField: UITextField) {
        
            self.layout = layout
            self.label = label
            self.textField = textField
        }
        
    }
    
    /// String扩展
    extension String {
        
        
        /// unicode转一般字符串
        var unicodeToString: String {
        
            let str1 = self.replacingOccurrences(of: "\\u", with: "\\U")
            let str2 = str1.replacingOccurrences(of: "\"", with: "\\\"")
            let str3 = "\"".appending(str2).appending("\"")
            let strData = str3.data(using: String.Encoding.utf8)
            var str: String = ""
            do {
        
                str = try PropertyListSerialization.propertyList(from: strData!, options: [.mutableContainers], format: nil) as! String
            } catch {
        
                print(error)
            }
            return str
        }
        
    }

[fa183fec8531474889baa5f03bacbf7c.gif_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/25/d85fd17cca3d4ec1a10b5cdf8d8df3a2.png
[33459245b15f4107add3acfffc144c65.png]: https://image.dandelioncloud.cn/pgy_files/images/2024/03/25/8de21e5a4f804c4dbababc1323c84a4a.png