WPF好像没有自带的文字提示漂浮，我们可以定制一个。
效果如下：
xaml
xaml如下：
<Window x:Class="GroupServer.MsgTip"xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"xmlns:d="http://schemas.microsoft.com/expression/blend/2008"xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"xmlns:local="clr-namespace:GroupServer"mc:Ignorable="d"Title="MsgTip" ResizeMode="NoResize" Background="#00FFFFFF" AllowsTransparency="True" SizeToContent="WidthAndHeight" Topmost="True" ShowInTaskbar="False" WindowStyle="None" Loaded="Window_Loaded"><Border Background="#91d024" CornerRadius="10" ><Label x:Name="labTxt" Margin="20" HorizontalContentAlignment="Center" VerticalContentAlignment="Center" FontSize="18">这是一个消息提示框</Label></Border>
</Window>这里SizeToContent是适配窗口大小，Topmost是置顶，CornerRadius是圆角。
cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;namespace GroupServer
{/// <summary>/// MsgTip.xaml 的交互逻辑/// </summary>public partial class MsgTip : Window{public MsgTip(){InitializeComponent();}public void ShowTxt(string msg, int delaytime = 3000){labTxt.Content = msg;Show();_ = DelayClose(msg, delaytime);}async Task DelayClose(string msg,int delaytime = 3000){await Task.Delay(delaytime);Close();}private void Window_Loaded(object sender, RoutedEventArgs e){MainWindow mainWindow = (MainWindow)Application.Current.MainWindow;this.Top = mainWindow.Top + (mainWindow.Height - Height) / 2;this.Left = mainWindow.Left + (mainWindow.Width - Width) / 2;}}
}WindowLoad是为了让窗口在应用主界面中心显示
我们只要调用ShowTxt函数就可以了。
public static void ShowTip(string msg, int delaytime = 3000)
{MsgTip tip = new MsgTip();tip.ShowTxt(msg, delaytime);
}
