monodelvelop中运行后弹出指定xib窗体及显示分组数据

环境：苹果系统 

开发工具：monodevelop xcode

开发语言：c#

疑问：如何在新建的monotouch空项目中 运行后弹出指定的xib窗体

解答:

      1、首先添加新文件，选择ipad/iphone view controller，命名为mainwindows

      2、在mainwindows中写入如下代码（使用UITableView显示分组数据,格式化代码快捷键Ctrl+i）：

View Code

  1 using System.Linq;

  2 using System;

  3 using System.Drawing;

  4 using System.Globalization;

  5 using System.Collections.Generic;

  6 using MonoTouch.Foundation;

  7 using MonoTouch.UIKit;

  8 

  9 namespace tables03s {

 10     

 11     struct Element

 12     {

 13         public string Number{get;set;}

 14         public string Name{get;set;}

 15         public string Symbol{get;set;}

 16         public string Family{get;set;}

 17         public string StartsWith{get{return Name.Substring(0,1);}}

 18     }

 19     public partial class mainWindows : UIViewController {

 20         private List<Element> elements;

 21         public mainWindows() : base ("mainWindows", null) {

 22             

 23             elements = new List<Element>

 24             {

 25                 new Element{Name="hydrogen",Number="1",Symbol="H",Family="Hydrogen"},

 26                 new Element{Name="helium",Number="2",Symbol="He",Family="Noble gas"},

 27                 new Element{Name="lithium",Number="3",Symbol="Li",Family="Alkali Metal"},

 28                 new Element{Name="beryllium",Number="4",Symbol="Be",Family="Alkaline Earth"},

 29                 new Element{Name="boron",Number="5",Symbol="B",Family="Boron"},

 30                 new Element{Name="carbon",Number="6",Symbol="C",Family="Carbon"},

 31                 new Element{Name="nitrogen",Number="7",Symbol="N",Family="Pnictide"},

 32                 new Element{Name="oxygen",Number="8",Symbol="O",Family="Chalcogen"},

 33                 new Element{Name="fluorine",Number="9",Symbol="F",Family="Halogen"},

 34                 new Element{Name="neon",Number="10",Symbol="Ne",Family="Noble gas"},

 35                 new Element{Name="sodium",Number="11",Symbol="Na",Family="Alkali Metal"},

 36                 new Element{Name="magnesium",Number="12",Symbol="Mg",Family="Alkaline Earth"},

 37                 new Element{Name="aluminum",Number="13",Symbol="Al",Family="Boron"},

 38                 new Element{Name="silicon",Number="14",Symbol="Si",Family="Boron"}

 39                 

 40             };

 41             

 42             

 43         }

 44         

 45         

 46         public override void DidReceiveMemoryWarning() {

 47             // Releases the view if it doesn't have a superview.

 48             base.DidReceiveMemoryWarning();

 49             

 50             // Release any cached data, images, etc that aren't in use.

 51         }

 52         

 53         public override void ViewDidLoad() {

 54             base.ViewDidLoad();

 55             tableViews.Source=new MyTableViewSource(elements);

 56             //    tableViews.Source=new MyTableViewSource(elements);

 57             // Perform any additional setup after loading the view, typically from a nib.

 58         }

 59         

 60         public override void ViewDidUnload() {

 61             base.ViewDidUnload();

 62             

 63             // Clear any references to subviews of the main view in order to

 64             // allow the Garbage Collector to collect them sooner.

 65             //

 66             // e.g. myOutlet.Dispose (); myOutlet = null;

 67             

 68             ReleaseDesignerOutlets();

 69         }

 70         

 71         public override bool ShouldAutorotateToInterfaceOrientation(UIInterfaceOrientation toInterfaceOrientation) {

 72             // Return true for supported orientations

 73             return (toInterfaceOrientation != UIInterfaceOrientation.PortraitUpsideDown);

 74         }

 75         

 76         private class MyTableViewSource:UITableViewSource

 77         {

 78             private  List<string> sectionTitles;

 79             private SortedDictionary<int,List<Element>> sectionElements

 80                 =new SortedDictionary<int, List<Element>>();

 81             public MyTableViewSource(List<Element> list)

 82             {

 83                 sectionTitles=(from c in list select c.StartsWith).Distinct().ToList();

 84                 sectionTitles.Sort();

 85                 foreach(var element in list)

 86                 {

 87                     int sectionNum=sectionTitles.IndexOf(element.StartsWith);

 88                     if(sectionElements.ContainsKey(sectionNum))

 89                     {

 90                         sectionElements[sectionNum].Add(element);

 91                     }

 92                     else

 93                     {

 94                         sectionElements.Add(sectionNum,new List<Element>{element});

 95                     }

 96                     

 97                 }

 98                 

 99             }

100             public override int NumberOfSections(UITableView tableView) {

101                 return sectionTitles.Count;

102             }

103             public override string TitleForHeader(UITableView tableView, int section) {

104                 return sectionTitles[section];

105             }

106             public override string[] SectionIndexTitles(UITableView tableView) {

107                 return sectionTitles.ToArray();

108             }

109             public override int RowsInSection(UITableView tableview, int section) {

110                 return sectionElements[section].Count;

111             }

112             public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath) {

113                 

114                 string kCellIdetifier="mycell";

115                 UITableViewCell cell=tableView.DequeueReusableCell(kCellIdetifier);

116                 if(cell==null)

117                 {

118                     cell=new UITableViewCell(UITableViewCellStyle.Value2,kCellIdetifier);

119                 }

120                 Element display=sectionElements[indexPath.Section][indexPath.Row];

121                 cell.TextLabel.Text=display.Symbol;

122                 cell.DetailTextLabel.Text=display.Name;

123                 cell.DetailTextLabel.Font=UIFont.SystemFontOfSize(20);

124                 return cell;

125             }

126             public override void RowSelected(UITableView tableView, NSIndexPath indexPath) {

127                 Element display=sectionElements[indexPath.Section][indexPath.Row];

128                 ShowAlert("RowSelected","You selected "+display.Name);

129                 tableView.DeselectRow(indexPath,true);

130             }

131             public void ShowAlert(string title,string message)

132             {

133                 using (var alert=new UIAlertView(title,message,null,"OK",null))

134                 {

135                     alert.Show();

136                 }

137             }

138         }

139     }

140     

141 }

 

      3、在AppDelegate中写入如下代码，主要调用了window的RootViewController属性：

View Code

 1 public partial class AppDelegate : UIApplicationDelegate {

 2     // class-level declarations

 3     UIWindow window;

 4     mainWindows mainUiwindows;

 5     //

 6     // This method is invoked when the application has loaded and is ready to run. In this 

 7     // method you should instantiate the window, load the UI into it and then make the window

 8     // visible.

 9     //

10     // You have 17 seconds to return from this method, or iOS will terminate your application.

11     //

12     public override bool FinishedLaunching(UIApplication app, NSDictionary options) {

13         window = new UIWindow(UIScreen.MainScreen.Bounds);

14         mainUiwindows=new mainWindows();

15         window.RootViewController=mainUiwindows; //important

16         window.MakeKeyAndVisible();

17         return true;

18     }

19 }

 

      4、效果图如下：