C#: 启动画面设计

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Windows.Forms;
 5 using System.Threading;
 6 
 7 namespace WindowsTest
 8 {
 9     static class Program
10     {
11         /// <summary>
12         /// 应用程序的主入口点。
13         /// </summary>
14         [STAThread]
15         static void Main()
16         {
17             Application.EnableVisualStyles();
18             Application.SetCompatibleTextRenderingDefault(false);
19 
20             Thread thUI = new Thread(new ThreadStart(ShowSplashWindow));
21             thUI.Name = "Splash UI";
22             thUI.Priority = ThreadPriority.Normal;
23             thUI.Start();
24 
25             Thread th = new Thread(new ThreadStart(LoadResources));
26             th.Name = "Resource Loader";
27             //th.Priority = ThreadPriority.Highest;
28             th.Priority = ThreadPriority.Normal;
29             th.Start();
30             th.Join();
31 
32             if (splashForm != null)
33             {
34                 splashForm.Invoke(new MethodInvoker(delegate { splashForm.Close(); }));
35             }
36 
37             thUI.Join();
38             Application.Run(new MainForm());
39         }
40 
41         public static SplashForm splashForm
42         {
43             get;
44             set;
45         }
46 
47         private static void ShowSplashWindow()
48         {
49             splashForm = new SplashForm();
50             Application.Run(splashForm);
51         }
52 
53         private static void LoadResources()
54         {
55             for (int i = 1; i <= 8; i++)
56             {
57                 if (splashForm != null)
58                 {
59                     splashForm.Invoke(new MethodInvoker(delegate { splashForm.label1.Text = "Loading some things... " + DateTime.Now.ToString(); }));
60                 }
61                 Thread.Sleep(1000);
62             }
63             splashForm.Invoke(new MethodInvoker(delegate { splashForm.label1.Text = "Done. " + DateTime.Now.ToString(); }));
64         }
65     }
66 }

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Windows.Forms;
 5 using System.Threading;
 6 
 7 namespace WindowsTest
 8 {
 9     static class Program
10     {
11         /// <summary>
12         /// 应用程序的主入口点。
13         /// </summary>
14         [STAThread]
15         static void Main()
16         {
17             Application.EnableVisualStyles();
18             Application.SetCompatibleTextRenderingDefault(false);
19 
20             MyApplicationContent appContent = new MyApplicationContent(new MainForm(), new SplashForm());
21             Application.Run(appContent);
22         }
23 
24         //模拟耗时操作，这里假调程序需要访问网络来实现登录验证
25         //这是一个耗时操作，我们需要在执行的过程中，向用户实时显示一些信息
26         //那么，多线程是唯一的解决方案，在主线程执行这些，界面会死掉的
27         public static void InitApp(Object parm)
28         {
29             SplashForm startup = parm as SplashForm;
30             startup.Invoke(new UiThreadProc(startup.PrintMsg), "正在初始化...");
31             Thread.Sleep(100);
32             startup.Invoke(new UiThreadProc(startup.PrintMsg), "正在验证用户身份信息...");
33             Thread.Sleep(2000);
34             startup.Invoke(new UiThreadProc(startup.PrintMsg), "用户身份验证成功。");
35             Thread.Sleep(500);
36             startup.Invoke(new UiThreadProc(startup.PrintMsg), "正在登录...");
37             Thread.Sleep(2000);
38             bool loginSuccess = true;
39             //这里可以根据执行的结果判断，如果登录失败就退出程序，否则显示主窗体
40             if (loginSuccess)
41             {
42                 startup.Invoke(new UiThreadProc(startup.PrintMsg), "登录成功，欢迎使用！");
43                 Thread.Sleep(100);
44                 startup.Invoke(new UiThreadProc(startup.CloseForm), false);
45             }
46             else
47             {
48                 startup.Invoke(new UiThreadProc(startup.CloseForm), true);
49             }
50         }
51     }
52 
53     public delegate void UiThreadProc(Object o);
54     //WinForm里，默认第一个创建的窗体是主窗体，所以需要用应用程序域来管理
55     public class MyApplicationContent : ApplicationContext
56     {
57         private Form realMainForm;
58 
59         public MyApplicationContent(Form mainForm, Form flashForm)
60             : base(mainForm)
61         {
62             this.realMainForm = mainForm;
63             this.MainForm = flashForm;
64         }
65 
66         protected override void OnMainFormClosed(object sender, EventArgs e)
67         {
68             if (sender is SplashForm)
69             {
70                 SplashForm splashForm = sender as SplashForm;
71 
72                 if (!splashForm.Exit)
73                 {
74                     this.MainForm = realMainForm;
75 
76                     realMainForm.Show();
77                 }
78                 else
79                 {
80                     base.OnMainFormClosed(sender, e);
81                 }
82             }
83             else
84             {
85                 base.OnMainFormClosed(sender, e);
86             }
87         }
88     }
89 }

 1 using System;
 2 using System.Collections.Generic;
 3 using System.ComponentModel;
 4 using System.Data;
 5 using System.Drawing;
 6 using System.Linq;
 7 using System.Text;
 8 using System.Windows.Forms;
 9 using System.Threading;
10 
11 namespace WindowsTest
12 {
13     public partial class SplashForm : Form
14     {
15         private bool exit;
16  
17         public bool Exit
18         {
19             get { return exit; }
20         }
21  
22         public SplashForm()
23         {
24             InitializeComponent();
25         }
26  
27         //显示文字信息
28         public void PrintMsg(Object msg)
29         {
30             label1.Text = msg.ToString();
31         }
32  
33         //关闭启动窗体，如果需要中止程序，传参数false
34         public void CloseForm(Object o)
35         {
36             this.exit = Convert.ToBoolean(o);
37             this.Close();
38         }
39 
40         private void SplashForm_Load(object sender, EventArgs e)
41         {
42             ThreadPool.QueueUserWorkItem(new WaitCallback(Program.InitApp), this);
43         }
44     }
45 }