[WPF]创建系统栏小图标
2024-09-18 13:55:00
隐藏窗体任务栏图标
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow
{
public MainWindow()
{
InitializeComponent();
this.ShowInTaskbar = false;
}
}系统图标类
public class SystemTray
{
public static SystemTray Instance;
/// <summary>
/// 静态构造函数,在类第一次被创建或者静态成员被调用的时候调用
/// </summary>
static SystemTray()
{
Instance=new SystemTray();
}
public NotifyIcon Ni { get; set; }
private SystemTray()
{
Ni = new System.Windows.Forms.NotifyIcon();
Stream iconStream = Application.GetResourceStream(new Uri("pack://application:,,,/StikyNotes;component/MyLogo.ico")).Stream;
Ni.Icon = new System.Drawing.Icon(iconStream);
Ni.Visible = true;
Ni.MouseClick += Ni_MouseClick;
}
private void Ni_MouseClick(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Right)
{
System.Windows.Controls.ContextMenu NotifyIconMenu = (System.Windows.Controls.ContextMenu)App.Current.FindResource("NotifyIconMenu");
NotifyIconMenu.IsOpen = true;
App.Current.MainWindow?.Activate();
}
if (e.Button == MouseButtons.Left)
{
var wins=WindowsManager.Instance.Windows;
foreach (var i in wins)
{
i.Activate();
}
}
}
/// <summary>
/// 销毁系统托盘图标的资源
/// </summary>
public void DisposeNotifyIcon()
{
Ni?.Dispose();
}
}在App.xaml中:
public partial class App : Application
{
System.Threading.Mutex mutex;
protected override void OnStartup(StartupEventArgs e)
{
bool ret;
mutex = new System.Threading.Mutex(true, "StikyNotesAPP", out ret);
if (!ret)
{
MessageBox.Show("程序已经运行了");
Environment.Exit(0);
}
base.OnStartup(e);
var systemtray = SystemTray.Instance;
}
protected override void OnDeactivated(EventArgs e)
{
base.OnDeactivated(e);
System.Windows.Controls.ContextMenu menu = this.FindResource("NotifyIconMenu") as ContextMenu;
if (menu.IsOpen == true)
{
menu.IsOpen = false;
}
}
/// <summary>
/// 新建窗体
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MenuOpen_Click(object sender, RoutedEventArgs e)
{
var MainWindow = new MainWindow();
MainWindow.DataContext = new MainViewModel(MainWindow, new WindowsData());
WindowsManager.Instance.Windows.Add(MainWindow);
MainWindow.Show();
}
/// <summary>
/// 窗体退出
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MenuExit_Click(object sender, RoutedEventArgs e)
{
SystemTray.Instance.DisposeNotifyIcon();
App.Current.Shutdown();
}
/// <summary>
/// 窗体退出事件
/// </summary>
/// <param name="e"></param>
protected override void OnExit(ExitEventArgs e)
{
base.OnExit(e);
XMLHelper.SaveObjAsXml(ProgramData.Instance, "StikyNotesData.xml");
SystemTray.Instance.DisposeNotifyIcon();
}
private void Application_Startup(object sender, StartupEventArgs e)
{
var programData = XMLHelper.DecodeXML<ProgramData>("StikyNotesData.xml");
if (programData != null)
{
var windowsDatas = programData.Datas;
ProgramData.Instance.IsWindowTopMost = programData.IsWindowTopMost;
ProgramData.Instance.IsStartUpWithSystem = programData.IsStartUpWithSystem;
MainWindow MainWindow;
//有创建过的窗口
if (windowsDatas.Count > 0)
{
for (int i = 0; i < windowsDatas.Count; i++)
{
MainWindow = new MainWindow();
MainWindow.DataContext = new MainViewModel(MainWindow, windowsDatas[i]);
MainWindow.Show();
}
}
else//以前的窗口都被删掉了
{
MainWindow = new MainWindow();
MainWindow.DataContext = new MainViewModel(MainWindow, new WindowsData());
MainWindow.Show();
}
}
//没有创建过的窗口
else
{
var MainWindow = new MainWindow();
MainWindow.DataContext = new MainViewModel(MainWindow, new WindowsData());
MainWindow.Show();
}
}
}App.xaml中
<ContextMenu x:Key="NotifyIconMenu" StaysOpen="False">
<MenuItem
Name="MenuOpen"
Click="MenuOpen_Click"
Header="新建" />
<MenuItem
Name="MenuExit"
Click="MenuExit_Click"
Header="退出" />
</ContextMenu>问题
记得在退出的时候要释放使用的图标资源，否则在程序退出之后，系统栏中还会存在小图标，要使用下面这条语句：
SystemTray.Instance.DisposeNotifyIcon();
效果
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