swift 創建的通訊錄,實現了聯系人的添加 刪除 和查看詳情.
聯系人使用的假數據.
添加使用了閉包傳值,傳一個 model.
聯系人詳情和添加還有聯系人界面使用了 xib.
除了語法和 OC 不一樣,其他步驟和 OC 通訊錄沒有差別.
demo 中所需要的類
屏幕快照 2016-06-14 下午8.21.32.png
以下是各個類的代碼:
1.主要是設置根視圖控制器 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.創建 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.創建單例
import UIKit
class ContactMangager: NSObject {
// 將聯系人管理聲明為單例類,管理所有聯系人的操作,增刪...
static let shareContactManager:ContactMangager = {
let contactManager = ContactMangager()
return contactManager
}()
// 所有聯系人的數組
var contactArray:[Contact] = [Contact]()
func addContact(contact:Contact){
contactArray.append(contact)
}
}
4.用 xib 拖 cell 布局,并拖成屬性和賦值
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!
// 根據 contact 給 cell 里面的標簽賦值
func cellWithContact(contact:Contact){
nameL.text = contact.name
ageL.text = contact.age
genderL.text = contact.gender
phoneL.text = contact.phone
}
5.聯系人詳情頁面 xib 拖,并拖成屬性
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.添加聯系人頁面 xib 拖 ,并拖成屬性
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!
// 閉包
var closure:((model:Contact)->())?
// 保存按鈕
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.在根視圖控制器中進行一系列操作
import UIKit
// 延展(寫在類的外面)
// extension 本類名:協議名{}
extension ViewController:UITableViewDelegate,UITableViewDataSource{
// tableview 遵守的協議方法
// 返回 cell
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
// cell 需要強轉
let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! ContactTableViewCell
let contact = ContactMangager.shareContactManager.contactArray[indexPath.row]
cell.cellWithContact(contact)
return cell
}
// 行數
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 點擊方法,點擊查看詳情
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
let detailVC:DetailViewController = DetailViewController()
detailVC.contact = ContactMangager.shareContactManager.contactArray[indexPath.row]
navigationController?.pushViewController(detailVC, animated: true)
}
// 是否可編輯
func tableView(tableView: UITableView, canEditRowAtIndexPath indexPath: NSIndexPath) -> Bool {
return true
}
// 相應編輯模式下的操作
func tableView(tableView: UITableView, commitEditingStyle editingStyle: UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath) {
if editingStyle == .Delete{
// 刪除 cell
[ContactMangager.shareContactManager.contactArray.removeAtIndex(indexPath.row)]
// 操作 UI
tableView.deleteRowsAtIndexPaths([indexPath], withRowAnimation: UITableViewRowAnimation.Fade)
}
}
}
class ViewController: UIViewController {
// 懶加載 tableview
lazy var tableView:UITableView = {
let tableView = UITableView(frame: UIScreen.mainScreen().bounds, style: UITableViewStyle.Plain)
tableView.delegate = self
tableView.dataSource = self
return tableView
}()
// 添加按鈕
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()
// 注冊cell
tableView.registerNib(UINib(nibName: "ContactTableViewCell", bundle: NSBundle.mainBundle()), forCellReuseIdentifier: "cell")
view.addSubview(tableView)
view.backgroundColor = UIColor.whiteColor()
// 數據源
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:")
}
}
