.NET Micro Framework版的WPF创建的计时器 

 1 using System;
 2 
 3 using Microsoft.SPOT;
 4 using Microsoft.SPOT.Input;
 5 using Microsoft.SPOT.Presentation;
 6 using Microsoft.SPOT.Presentation.Controls;
 7 using System.Threading;
 8 
 9 namespace TimeDisplay
10 {
11     public class Program : Microsoft.SPOT.Application
12     {
13         public static void Main()
14         {
15             Program myApplication = new Program();
16 
17             Window mainWindow = myApplication.CreateWindow();
18 
19             // 创建一个 GPIO buttons
20             GPIOButtonInputProvider inputProvider = new GPIOButtonInputProvider(null);
21 
22             // 启动程序
23             myApplication.Run(mainWindow);
24         }
25 
26         private Window mainWindow;
27 
28         Text text = new Text();
29         public Window CreateWindow()
30         {
31             // 创建一个Window窗体
32             mainWindow = new Window();
33             mainWindow.Height = SystemMetrics.ScreenHeight;
34             mainWindow.Width = SystemMetrics.ScreenWidth;
35 
36             //创建计时器
37             timer = new DispatcherTimer();
38             timer.Interval = new TimeSpan(0, 0, 1);//间隔1秒
39             timer.Tick += new EventHandler(timer_Tick);
40             timer.Start();
41 
42             // 创建text控件
43             //Text text = new Text();
44 
45             text.Font = Resources.GetFont(Resources.FontResources.small);
46             //text.TextContent = Resources.GetString(Resources.StringResources.String1);
47             text.HorizontalAlignment = Microsoft.SPOT.Presentation.HorizontalAlignment.Center;
48             text.VerticalAlignment = Microsoft.SPOT.Presentation.VerticalAlignment.Center;
49 
50             // 将text增加到window
51             mainWindow.Child = text;
52 
53             // Connect the button handler to all of the buttons.
54             mainWindow.AddHandler(Buttons.ButtonUpEvent, new RoutedEventHandler(OnButtonUp), false);
55 
56             // 设置窗体是否可见
57             mainWindow.Visibility = Visibility.Visible;
58 
59             // 增加Button焦点
60             Buttons.Focus(mainWindow);
61 
62             return mainWindow;
63         }
64 
65         DispatcherTimer timer = new DispatcherTimer();
66         private void OnButtonUp(object sender, RoutedEventArgs evt)
67         {
68             ButtonEventArgs e = (ButtonEventArgs)evt;
69 
70             // 输出调试结果
71             Debug.Print(e.Button.ToString());
72         }
73 
74         void timer_Tick(object sender, EventArgs e)
75         {
76 
77             text.TextContent = DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss ddd");
78 
79         }
80     }
81 }

第一次用.NET Micro Framework编写了定时器，使用DispatchTimer类代替Timer类，这样可以避免一些潜在的问题

程序不难，类似于用Timer类来获取系统时间，显示的话需要把text.TextContent加到timer_Tick中

posted @ 2016-03-03 18:07  Actor_H  阅读(234)  评论(0)    收藏  举报