此版本是根据别人的项目改造的，记录下笔记
原文：https://blog.csdn.net/catshitone/article/details/75089069
一、即时弹出
1.创建弹出框
新建一个100*300的WPF页面NotificationWindow.Xaml
<Grid Background="AliceBlue">
<Button Click="Button_Click" Content="Close" HorizontalAlignment="Left" Margin="225,0,0,0" VerticalAlignment="Top" Width=""/>
<TextBlock x:Name="tbTitle" HorizontalAlignment="Left" Margin="31,16,0,0" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Top"/>
<TextBlock x:Name="tbContent" HorizontalAlignment="Left" Margin="31,42,0,0" TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Top"/>
</Grid>
后置页代码
public partial class NotificationWindow : Window
{
public double TopFrom
{
get; set;
}
public NotificationWindow()
{
InitializeComponent();
this.Loaded += NotificationWindow_Loaded;
} private void NotificationWindow_Loaded(object sender, RoutedEventArgs e)
{
NotifyData data= this.DataContext as NotifyData;
if(data!=null)
{
tbContent.Text = data.Content;
tbTitle.Text = data.Title;
}
NotificationWindow self = sender as NotificationWindow;
if (self != null)
{
self.UpdateLayout();
SystemSounds.Asterisk.Play();//播放提示声 double right = SystemParameters.WorkArea.Right;//工作区最右边的值
self.Top = self.TopFrom - self.ActualHeight;
DoubleAnimation animation = new DoubleAnimation();
animation.Duration = new Duration(TimeSpan.FromMilliseconds());//NotifyTimeSpan是自己定义的一个int型变量，用来设置动画的持续时间
animation.From = right;
animation.To = right - self.ActualWidth;//设定通知从右往左弹出
self.BeginAnimation(Window.LeftProperty, animation);//设定动画应用于窗体的Left属性 Task.Factory.StartNew(delegate
{
int seconds = ;//通知持续5s后消失
System.Threading.Thread.Sleep(TimeSpan.FromSeconds(seconds));
//Invoke到主进程中去执行
this.Dispatcher.Invoke(delegate
{
animation = new DoubleAnimation();
animation.Duration = new Duration(TimeSpan.FromMilliseconds());
animation.Completed += (s, a) => { self.Close(); };//动画执行完毕，关闭当前窗体
animation.From = right - self.ActualWidth;
animation.To = right;//通知从左往右收回
self.BeginAnimation(Window.LeftProperty, animation);
});
});
}
} private void Button_Click(object sender, RoutedEventArgs e)
{
double right = SystemParameters.WorkArea.Right;
DoubleAnimation animation = new DoubleAnimation();
animation.Duration = new Duration(TimeSpan.FromMilliseconds()); animation.Completed += (s, a) => { this.Close(); };
animation.From = right - this.ActualWidth;
animation.To = right;
this.BeginAnimation(Window.LeftProperty, animation);
}
}
2.弹出消息
在主页面创建一个弹出按钮，事件如下
private void Button_Click(object sender, RoutedEventArgs e)
{
i++;
NotifyData data = new NotifyData();
data.Title = "这是标题:" + i;
data.Content = "这是手动内容 ";
showNotify(data);
} private void showNotify(NotifyData data)
{
NotificationWindow dialog = new NotificationWindow();//new 一个通知
dialog.Closed += Dialog_Closed;
dialog.TopFrom = GetTopFrom();
dialog.DataContext = data;//设置通知里要显示的数据
dialog.Show(); _dialogs.Add(dialog);
}
二、定时弹出
1.创建弹出框
和前面的第一步一样
2.创建事件通知接口
部分代码
/// <summary>
/// 事件通知接口
/// </summary>
public interface IEventNotify
{
/// <summary>
/// 事件通知
/// </summary>
void EventNotify(EventData eventData);
} /// <summary>
/// 事件数据实体
/// </summary>
public class EventData
{
public EventNotifyType EventNotify { get; set; } public object Data { get; set; }
}
3.实现定时消息
在消息管理类添加一个定时器，每隔3秒执行一次。
在Timer_Elapsed中，定时获取最新数据
public class NoticeManager : IDisposable
{
/// <summary>
/// 定时器
/// </summary>
private readonly Timer _timer;
public IMainEventCommnuicationHandler Handler { get; private set; } private int seconds = * ; public NoticeManager(IMainEventCommnuicationHandler handler)
{
Handler = handler;
_timer = new Timer(seconds * );
_timer.Elapsed += Timer_Elapsed;
_timer.Start(); } /// <summary>
/// 定时事件
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void Timer_Elapsed(object sender, ElapsedEventArgs e)
{
for (int i = ; i < ; i++)
{
var notifyData = new NotifyData()
{
Title = "标题" + i,
Content = DateTime.Now.AddHours(i).ToString() };
EventData eventData = new EventData()
{
EventNotify = EventNotifyType.New,
Data = notifyData
};
Handler.EventNotify(eventData);
}
} public void Dispose()
{
if (_timer != null)
{
_timer.Stop();
_timer.Dispose();
}
}
}
4.弹出消息
private NoticeManager noticeManager;
private void Time_Click(object sender, RoutedEventArgs e)
{
if (noticeManager == null)
{
noticeManager = new NoticeManager(this);
btnTime.Content = "暂停弹出";
}
else
{
btnTime.Content = "定时弹出";
noticeManager.Dispose();
}
} public void EventNotify(EventData eventData)
{
if (eventData.EventNotify == EventNotifyType.New)
{
var data = eventData.Data as NotifyData;
SendMessage(data);
}
else
{
MessageBox.Show("其他定时消息");
}
} /// <summary>
/// 发出通知
/// </summary>
/// <param name="data"></param>
void SendMessage(NotifyData data)
{
//此处调用Invoke，否则会报错：“ 调用线程必须为 STA,因为许多 UI 组件都需要 ”。
App.Current.Dispatcher.Invoke(() =>
{
showNotify(data);
});
}
事件通知时不能直接使用UI组件，否则会报错：“ 调用线程必须为 STA,因为许多 UI 组件都需要 ”。
Dispatcher是一个线程控制器，反正你要控制线程里跑的东西，就要经过它。那么WPF里面，有个所谓UI线程，后台代码不能直接操作UI控件，需要控制，就要通过这个Dispatcher。
参考：https://www.cnblogs.com/xinaixia/p/5706096.html
demo下载：https://gitee.com/zmsofts/XinCunShanNianDaiMa/blob/master/NotificationDemoWPF.rar