swift- 通讯录demo

swift 创建的通讯录,实现了联系人的添加 删除 和查看详情.
联系人使用的假数据.
添加使用了闭包传值,传一个 model.
联系人详情和添加还有联系人界面使用了 xib.
除了语法和 OC 不一样,其他步骤和 OC 通讯录没有差别.

demo 中所需要的类

屏幕快照 2016-06-14 下午8.21.32.png

以下是各个类的代码:
1.主要是设置根视图控制器 AppDelegate.swift

import UIKit

@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {

var window: UIWindow?


func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.
    
    window?.rootViewController = UINavigationController(rootViewController: ViewController())
    
    return true
}

2.创建 model Contact.swift

import UIKit

class Contact: NSObject {

var name:String?
var age:String?
var gender:String?
var phone:String?

init(name:String,age:String,gender:String,phone:String) {
    super.init()
    self.name = name
    self.age = age
    self.gender = gender
    self.phone = phone
}

}

3.创建单例

import UIKit

class ContactMangager: NSObject {

// 将联系人管理声明为单例类,管理所有联系人的操作,增删...
static let shareContactManager:ContactMangager = {
    let contactManager = ContactMangager()
    return contactManager
}()

// 所有联系人的数组
var contactArray:[Contact] = [Contact]()
func addContact(contact:Contact){
    contactArray.append(contact)
}

}

4.用 xib 拖 cell 布局,并拖成属性和赋值

屏幕快照 2016-06-14 下午8.25.46.png

import UIKit

class ContactTableViewCell: UITableViewCell {

@IBOutlet var nameL: UILabel!

@IBOutlet var ageL: UILabel!

@IBOutlet var genderL: UILabel!

@IBOutlet var phoneL: UILabel!

// 根据 contact 给 cell 里面的标签赋值
func cellWithContact(contact:Contact){
    nameL.text = contact.name
    ageL.text = contact.age
    genderL.text = contact.gender
    phoneL.text = contact.phone
}

5.联系人详情页面 xib 拖,并拖成属性

屏幕快照 2016-06-14 下午8.26.40.png

import UIKit

class DetailViewController: UIViewController {

@IBOutlet var nameL: UILabel!

@IBOutlet var ageL: UILabel!

@IBOutlet var genderL: UILabel!

@IBOutlet var phoneL: UILabel!

var contact:Contact?


override func viewDidLoad() {
    super.viewDidLoad()

    nameL.text = contact?.name
    ageL.text = contact?.age
    genderL.text = contact?.gender
    phoneL.text = contact?.phone
    
    
}

6.添加联系人页面 xib 拖 ,并拖成属性

屏幕快照 2016-06-14 下午8.27.45.png

import UIKit

class AddViewController: UIViewController {

@IBOutlet var nameTF: UITextField!

@IBOutlet var ageTF: UITextField!

@IBOutlet var genderTF: UITextField!

@IBOutlet var phoneTF: UITextField!

// 闭包
var closure:((model:Contact)->())?

// 保存按钮
func saveAction(rightBarButtonItem:UIBarButtonItem){
    let contact = Contact(name: nameTF.text!, age: ageTF.text!, gender: genderTF.text!, phone: phoneTF.text!)
    closure!(model:contact)
    ContactMangager.shareContactManager.addContact(contact)
    navigationController?.popViewControllerAnimated(true)
}

override func viewDidLoad() {
    super.viewDidLoad()

    navigationItem.rightBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Save, target: self, action: "saveAction:")
    
}

7.在根视图控制器中进行一系列操作
import UIKit

 // 延展(写在类的外面)
// extension 本类名:协议名{}
 extension    ViewController:UITableViewDelegate,UITableViewDataSource{

// tableview 遵守的协议方法
// 返回 cell
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    // cell 需要强转
    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! ContactTableViewCell
    let contact = ContactMangager.shareContactManager.contactArray[indexPath.row]
    cell.cellWithContact(contact)
    return cell
}
// 行数
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
    return ContactMangager.shareContactManager.contactArray.count
}
// 行高
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
    return 110
}

// cell 点击方法,点击查看详情
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
    let detailVC:DetailViewController = DetailViewController()
    detailVC.contact = ContactMangager.shareContactManager.contactArray[indexPath.row]
    navigationController?.pushViewController(detailVC, animated: true)
}

// 是否可编辑
func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
    return true
}
// 相应编辑模式下的操作
func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
    if editingStyle == .Delete{
        // 删除 cell
        [ContactMangager.shareContactManager.contactArray.removeAtIndex(indexPath.row)]
        // 操作 UI
        tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Fade)
    }
}

}

class ViewController: UIViewController {

// 懒加载 tableview
lazy var tableView:UITableView = {
    let tableView = UITableView(frame: UIScreen.mainScreen().bounds, style: UITableViewStyle.Plain)
    tableView.delegate = self
    tableView.dataSource = self
    return tableView
}()


// 添加按钮
func addAction(leftBarButtonItem:UIBarButtonItem){
    let addVC:AddViewController = AddViewController()
    addVC.closure = {
        (model:Contact)->()
        in
        ContactMangager.shareContactManager.contactArray.append(model)
        self.tableView.reloadData()
    }
    navigationController?.pushViewController(addVC, animated: true)
}

override func viewDidLoad() {

     super.viewDidLoad()
    
    // 注册cell
    tableView.registerNib(UINib(nibName: "ContactTableViewCell", bundle: NSBundle.mainBundle()), forCellReuseIdentifier: "cell")
    
    
    view.addSubview(tableView)
    view.backgroundColor = UIColor.whiteColor()
    // 数据源
    for i in 0..<10
    {
        let contact = Contact(name: "lisi\(i)", age: "2\(i)", gender: "女", phone: "120-2016\(i)")
        ContactMangager.shareContactManager.addContact(contact)
    }
    
    navigationItem.leftBarButtonItem = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Add, target: self, action: "addAction:")         
}

}