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在 C# 中更新指示器标签

tag-icon • tag-icon indicator c#
在 C# 中更新指示器标签

我创建了一个新指标：

indicator = 
        new ApplicationIndicator (
            "sample-application",       //id of the the indicator icon
            "app-icon",                 //file name of the icon (will look for app-icon.png) 
            Category.ApplicationStatus, 
            ExecutableFolder            //the folder where to look for app-icon.png
        );  

        //Build Popup Menu for ApplicationIndicator
        Menu popupMenu = new Menu ();
        indicator.Label = "init label";
...

从计时器回调函数中我想要更新指标的标签：

indicator.label = "new label";

新的标签值未应用于指示器。它仍显示字符串init label。

答案1

  • 我认为这只是打字错误，应该是indicator.Label = "new label";大写的L。

  • 下面是我的完整工作展示（在 Ubuntu 14.04 上测试）：

    1. indicator_demo.cs

      using Gtk;
using AppIndicator;

public class IndicatorExample
{
        static Window win;
        static  ApplicationIndicator indicator;
        static int c;


        public static void Main ()
        {
                Application.Init ();

                win = new Window ("Test");
                win.Resize (200, 200);

                Label label = new Label ();
                label.Text = "Hello, world!";

                win.Add (label);

                indicator = new ApplicationIndicator ("my-id",
                                                                           "my-name",
                                                                           Category.ApplicationStatus);

                indicator.Status = Status.Attention;


                Menu menu = new Menu ();
                //menu.Append (new MenuItem ("Foo"));
                //menu.Append (new MenuItem ("Bar"));

                indicator.Menu = menu;
                indicator.Menu.Show();
                indicator.Label = "init label";                

                win.ShowAll ();

                indicator.Label = "label2";
                c = 0;
                GLib.Timeout.Add (1000, new GLib.TimeoutHandler (update));

                Application.Run ();
        }

        public static bool update()
        {
                c+=1;
                indicator.Label = c.ToString();

                return true;
        }
}

      这是一个模型Ubuntu Wiki：应用程序指示器C# 示例。

    2. 编译运行测试：

      dmcs -pkg:gtk-sharp-2.0 -pkg:appindicator-sharp-0.1 indicator_demo.cs
mono indicator_demo.exe

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