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swift_UITableView详解

发布时间：2020-12-14 01:52:56 所属栏目：百科 来源：网络整理
导读：1.新建RootViewController类 [objc] view plaincopy // //RootViewController.swift //UITableViewDemo // //Createdby赵超on14-6-21. //Copyright(c)2014年赵超.Allrightsreserved. importUIKit class RootViewController :UIViewController,UITableViewDel

1.新建RootViewController类

[objc]view plaincopy
  1. //
  2. //RootViewController.swift
  3. //UITableViewDemo
  4. //
  5. //Createdby赵超on14-6-21.
  6. //Copyright(c)2014年赵超.Allrightsreserved.
  8. importUIKit
  9. classRootViewController:UIViewController,UITableViewDelegate,UITableViewDataSource{
  10. vartableView:UITableView?
  11. varitems=["武汉","上海","北京","深圳","广州","重庆","香港","台海","天津"]
  12. varleftBtn:UIButton?
  13. varrightButtonItem:UIBarButtonItem?
  15. overridefuncviewDidLoad(){
  16. super.viewDidLoad()
  17. initView()
  18. setupRightBarButtonItem()
  19. setupLeftBarButtonItem()
  20. self.leftBtn!.userInteractionEnabled=true
  21. //Doanyadditionalsetupafterloadingtheview.
  22. }
  23. funcinitView(){
  24. //初始化tableView的数据
  25. self.tableView=UITableView(frame:self.view.frame,style:UITableViewStyle.Plain)
  26. //设置tableView的数据源
  27. self.tableView!.dataSource=self
  28. //设置tableView的委托
  29. self.tableView!.delegate=self.tableView!.registerClass(UITableViewCell.self,forCellReuseIdentifier:"cell")
  30. self.view.addSubview(self.tableView!)
  31. //加左边按钮
  32. funcsetupLeftBarButtonItem()
  33. {
  34. self.leftBtn=UIButton.buttonWithType(UIButtonType.Custom)as?UIButton
  35. self.leftBtn!.frame=CGRectMake(0,0,50,40)
  36. self.leftBtn?.setTitleColor(UIColor.redColor(),0); background-color:inherit">forState:UIControlState.Normal)
  37. self.leftBtn?.setTitle("Edit",0); background-color:inherit">forState:UIControlState.Normal)
  38. self.leftBtn!.tag=100
  39. false
  40. self.leftBtn?.addTarget(self,0); background-color:inherit">action:"leftBarButtonItemClicked",0); background-color:inherit">forControlEvents:UIControlEvents.TouchUpInside)
  41. varbarButtonItem=UIBarButtonItem(customView:self.leftBtn)
  42. self.navigationItem!.leftBarButtonItem=barButtonItem
  43. }
  44. //左边按钮事件
  45. funcleftBarButtonItemClicked()
  46. {
  47. println("leftBarButton")
  48. if(self.leftBtn!.tag==100)
  49. self.tableView?.setEditing(true,0); background-color:inherit">animated:true)
  50. self.leftBtn!.tag=200
  51. self.leftBtn?.setTitle("Done",0); background-color:inherit">//将增加按钮设置不能用
  52. self.rightButtonItem!.enabled=false
  53. else
  54. //恢复增加按钮
  55. false,153); font-weight:bold; background-color:inherit">self.leftBtn!.tag=100
  56. //加右边按钮
  57. funcsetupRightBarButtonItem()
  58. self.rightButtonItem=UIBarButtonItem(title:"Add",0); background-color:inherit">style:UIBarButtonItemStyle.Plain,0); background-color:inherit">target:"rightBarButtonItemClicked")
  59. self.navigationItem!.rightBarButtonItem=self.rightButtonItem
  60. //增加事件
  61. funcrightBarButtonItemClicked()
  62. varrow=self.items.count
  63. varindexPath=NSIndexPath(forRow:row,inSection:0)
  64. self.items.append("杭州")
  65. self.tableView?.insertRowsAtIndexPaths([indexPath],0); background-color:inherit">withRowAnimation:UITableViewRowAnimation.Left)
  66. overridefuncdidReceiveMemoryWarning(){
  67. super.didReceiveMemoryWarning()
  68. //DispoSEOfanyresourcesthatcanberecreated.
  69. //总行数
  70. functableView(tableView:UITableView!,numberOfRowsInSectionsection:Int)->Int{
  71. return//加载数据
  72. functableView(tableView:UITableView!,cellForRowAtIndexPathindexPath:NSIndexPath!)->UITableViewCell!{
  73. letcell=tableView.dequeueReusableCellWithIdentifier("cell",0); background-color:inherit">forIndexPath:indexPath)asUITableViewCell
  74. varrow=indexPath.rowasInt
  75. cell.textLabel.text=self.items[row]
  76. cell.imageView.image=UIImage(named:"green.png")
  77. returncell;
  78. //删除一行
  79. editingStyle:UITableViewCellEditingStyle,forRowAtIndexPathindexPath:NSIndexPath!){
  80. varindex=indexPath.rowasInt
  81. self.items.removeAtIndex(index)
  82. self.tableView?.deleteRowsAtIndexPaths([indexPath],0); background-color:inherit">withRowAnimation:UITableViewRowAnimation.Top)
  83. NSLog("删除(indexPath.row)")
  84. //选择一行
  85. indexPath:NSIndexPath!){
  86. letalert=UIAlertView()
  87. alert.title="提示"
  88. alert.message="你选择的是(self.items[indexPath.row])"
  89. alert.addButtonWithTitle("Ok")
  90. alert.show()
  91. }

2.APPDelegate.swift调用

[objc]view plaincopy
  1. //
  2. //AppDelegate.swift
  3. //UITableViewDemo
  4. //
  5. //Createdby赵超on14-6-21.
  6. //Copyright(c)2014年赵超.Allrightsreserved.
  8. importUIKit
  9. @UIApplicationMain
  10. AppDelegate:UIResponder,UIApplicationDelegate{
  12. window:UIWindow?
  13. funcapplication(application:UIApplication,didFinishLaunchingWithOptionslaunchOptions:NSDictionary?)->Bool{
  14. self.window=UIWindow(frame:UIScreen.mainScreen().bounds)
  15. //Overridepointforcustomizationafterapplicationlaunch.
  16. varrootView=RootViewController()
  17. varnav=UINavigationController(rootViewController:rootView)
  18. self.window!.rootViewController=nav;
  19. self.window!.backgroundColor=UIColor.whiteColor()
  20. self.window!.makeKeyAndVisible()
  21. true
  22. }
  23. funcapplicationWillResignActive(application:UIApplication){
  24. //Sentwhentheapplicationisabouttomovefromactivetoinactivestate.Thiscanoccurforcertaintypesoftemporaryinterruptions(suchasanincomingphonecallorSMSmessage)orwhentheuserquitstheapplicationanditbeginsthetransitiontothebackgroundstate.
  25. //UsethismethodtopauSEOngoingtasks,disabletimers,andthrottledownOpenGLESframerates.Gamesshouldusethismethodtopausethegame.
  26. }
  27. funcapplicationDidEnterBackground(application:UIApplication){
  28. //Usethismethodtoreleasesharedresources,saveuserdata,invalidatetimers,andstoreenoughapplicationstateinformationtorestoreyourapplicationtoitscurrentstateincaseitisterminatedlater.
  29. //Ifyourapplicationsupportsbackgroundexecution,thismethodiscalledinsteadofapplicationWillTerminate:whentheuserquits.
  30. funcapplicationWillEnterForeground(application:UIApplication){
  31. //Calledaspartofthetransitionfromthebackgroundtotheinactivestate;hereyoucanundomanyofthechangesmadeonenteringthebackground.
  32. funcapplicationDidBecomeActive(application:UIApplication){
  33. //Restartanytasksthatwerepaused(ornotyetstarted)whiletheapplicationwasinactive.Iftheapplicationwaspreviouslyinthebackground,optionallyrefreshtheuserinterface.
  34. funcapplicationWillTerminate(application:UIApplication){
  35. //Calledwhentheapplicationisabouttoterminate.Savedataifappropriate.SeealsoapplicationDidEnterBackground:.
  36. }

3.效果

完整工程代码 ：https://github.com/whzhaochao/IOS-Swift-UITableViewDemo

（编辑：李大同）

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