WPF自定义控件之消息提示

• 创建消息提示控件
• 创建消息提示控件容器
• 创建消息通知类
• 使用示例：

internal class Message : ContentControl     {         public int Time { get; set; }          [Bindable(true)]         public MessageType MessageType { get { return (MessageType)GetValue(MessageTypeProperty); } set { SetValue(MessageTypeProperty, value); } }         public static readonly DependencyProperty MessageTypeProperty = DependencyProperty.Register("MessageType", typeof(MessageType), typeof(Message), new PropertyMetadata(default(MessageType)));          internal Message()         {             Loaded += Message_Loaded;         }          private async void Message_Loaded(object sender, System.Windows.RoutedEventArgs e)         {             if (Parent is MessageHost host)             {                 await Task.Delay(Time);                 host.Items.Remove(this);             }         }     }

<Style x:Key="MessageStyle" TargetType="xy:Message">         <Setter Property="MinHeight" Value="50" />         <Setter Property="MinWidth" Value="200" />         <Setter Property="IsHitTestVisible" Value="false" />         <Setter Property="HorizontalAlignment" Value="Center" />         <Setter Property="VerticalContentAlignment" Value="Center" />         <Setter Property="TextBlock.TextWrapping" Value="WrapWithOverflow" />         <Setter Property="TextBlock.TextTrimming" Value="CharacterEllipsis" />         <Setter Property="Margin" Value="0,4" />         <Setter Property="Panel.ZIndex" Value="99" />         <Setter Property="Template">             <Setter.Value>                 <ControlTemplate TargetType="xy:Message">                     <ControlTemplate.Resources>                         <Storyboard x:Key="MessageStoryboard">                             <DoubleAnimationUsingKeyFrames Storyboard.TargetName="TranslateTransform" Storyboard.TargetProperty="Y">                                 <EasingDoubleKeyFrame KeyTime="0" Value="-40" />                                 <EasingDoubleKeyFrame KeyTime="0:0:0.5" Value="0">                                     <EasingDoubleKeyFrame.EasingFunction>                                         <CircleEase EasingMode="EaseOut" />                                     </EasingDoubleKeyFrame.EasingFunction>                                 </EasingDoubleKeyFrame>                             </DoubleAnimationUsingKeyFrames>                             <DoubleAnimation                                 Storyboard.TargetName="TransitionBody"                                 Storyboard.TargetProperty="Opacity"                                 From="0"                                 To="1"                                 Duration="0:0:0.5" />                         </Storyboard>                     </ControlTemplate.Resources>                     <Grid                         x:Name="TransitionBody"                         Margin="1"                         Opacity="0"                         RenderTransformOrigin="0.5,0.5">                         <Grid.RenderTransform>                             <TransformGroup>                                 <TranslateTransform x:Name="TranslateTransform" />                             </TransformGroup>                         </Grid.RenderTransform>                         <Border Background="{TemplateBinding Background}" CornerRadius="5">                             <Border.Effect>                                 <DropShadowEffect Opacity="0.2" ShadowDepth="0" />                             </Border.Effect>                         </Border>                         <Grid Margin="1,0">                             <Grid.ColumnDefinitions>                                 <ColumnDefinition Width="auto" />                                 <ColumnDefinition />                             </Grid.ColumnDefinitions>                             <Border                                 x:Name="icon_background"                                 Width="20"                                 Height="20"                                 Margin="10,10,5,10">                                 <Path x:Name="icon" Stretch="Fill" />                             </Border>                             <ContentPresenter                                 Grid.Column="1"                                 Margin="5,10"                                 HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}"                                 VerticalAlignment="{TemplateBinding VerticalContentAlignment}" />                         </Grid>                     </Grid>                     <ControlTemplate.Triggers>                         <Trigger Property="MessageType" Value="Default">                             <Setter Property="Background" Value="White" />                             <Setter TargetName="icon_background" Property="Visibility" Value="Collapsed" />                         </Trigger>                         <Trigger Property="MessageType" Value="Error">                             <Setter Property="Background" Value="White" />                             <Setter TargetName="icon" Property="Fill" Value="#FF5722" />                             <Setter TargetName="icon" Property="Data" Value="M512 0C229.23 0 0 229.23 0 512s229.23 512 512 512c282.768 0 512-229.23 512-512C1024 229.23 794.77 0 512 0zM746.76 656.252c7.808 7.808 7.806 20.472 0.002 28.284l-62.228 62.224c-7.808 7.808-20.47 7.814-28.286 0.002L512 602.51l-144.25 144.25c-7.81 7.812-20.474 7.808-28.284 0l-62.226-62.224c-7.81-7.808-7.812-20.472 0-28.284L421.492 512l-144.25-144.25c-7.81-7.808-7.81-20.474 0-28.284l62.226-62.224c7.81-7.812 20.474-7.81 28.284 0L512 421.49l144.252-144.25c7.806-7.812 20.47-7.81 28.282 0l62.226 62.224c7.806 7.812 7.808 20.474 0 28.284L602.51 512 746.76 656.252z" />                         </Trigger>                         <Trigger Property="MessageType" Value="Success">                             <Setter Property="Background" Value="White" />                             <Setter TargetName="icon" Property="Fill" Value="#5FB878" />                             <Setter TargetName="icon" Property="Data" Value="M510.107082 0C228.488568 0 0.191459 228.297109 0.191459 509.913817 0.191459 791.530527 228.488568 1019.827635 510.107082 1019.827635 791.725594 1019.827635 1020.017285 791.530527 1020.017285 509.913817 1020.017285 228.297109 791.725594 0 510.107082 0L510.107082 0ZM410.902284 770.518774 409.764366 769.377244 408.622835 770.518774 168.529307 530.430664 248.958453 449.997904 409.764366 610.798397 771.252096 249.310666 851.681244 329.739812 410.902284 770.518774 410.902284 770.518774Z" />                         </Trigger>                         <Trigger Property="MessageType" Value="Warning">                             <Setter Property="Background" Value="White" />                             <Setter TargetName="icon" Property="Fill" Value="#FFB800" />                             <Setter TargetName="icon" Property="Data" Value="M512 0C229.254842 0 0.010628 229.244214 0.010628 511.989372c0 282.766414 229.244214 512.010628 511.989372 512.010628 282.766414 0 511.989372-229.244214 511.989372-512.010628C1024.010628 229.244214 794.78767 0 512 0zM580.146217 804.23589l-136.271178 0L443.875039 687.626362l136.271178 0L580.146217 804.23589zM580.146217 591.443695l-136.271178 0L443.875039 219.76411l136.271178 0L580.146217 591.443695z" />                         </Trigger>                         <EventTrigger RoutedEvent="Loaded" SourceName="TransitionBody">                             <EventTrigger.Actions>                                 <BeginStoryboard Storyboard="{StaticResource MessageStoryboard}" />                             </EventTrigger.Actions>                         </EventTrigger>                     </ControlTemplate.Triggers>                 </ControlTemplate>             </Setter.Value>         </Setter>     </Style>     <Style BasedOn="{StaticResource MessageStyle}" TargetType="xy:Message" />

public enum MessageType     {         [Description("默认")]         Default,          [Description("成功")]         Success,          [Description("警告")]         Warning,          [Description("错误")]         Error     }

public class MessageHost : System.Windows.Controls.ItemsControl     {         public string Token { get { return (string)GetValue(TokenProperty); } set { SetValue(TokenProperty, value); } }          public static readonly DependencyProperty TokenProperty = DependencyProperty.Register("Token", typeof(string), typeof(MessageHost), new PropertyMetadata(OnTokenChanged));          private static void OnTokenChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)         {             if(d is MessageHost host)             {                 var token = e.NewValue.ToString();                 if (MessageHosts.ContainsKey(token))                 {                     MessageHosts.Remove(token);                 }                 MessageHosts.Add(token, host);             }         }          protected override bool IsItemItsOwnContainerOverride(object item)         {             return item is Message;         }          protected override DependencyObject GetContainerForItemOverride()         {             return new Message();         }     }

<Style x:Key="MessageHostStyle" TargetType="xy:MessageHost">         <Setter Property="Panel.ZIndex" Value="999" />     </Style>     <Style BasedOn="{StaticResource MessageHostStyle}" TargetType="xy:MessageHost" />

public class MessageManage     {         internal static Dictionary<string, MessageHost> MessageHosts { get; set; } = MessageHosts ?? new Dictionary<string, MessageHost>();          public static void Default(string message, string token = null, int time = 3000)         {             Show(message, MessageType.Default, token, time);         }          public static void Success(string message, string token = null, int time = 3000)         {             Show(message, MessageType.Success, token, time);         }          public static void Warning(string message, string token = null, int time = 3000)         {             Show(message, MessageType.Warning, token, time);         }          public static void Error(string message, string token = null, int time = 3000)         {             Show(message, MessageType.Error, token, time);         }          private static void Show(string message, MessageType messageType, string token, double time)         {             if (!MessageHosts.ContainsKey(token)) return;             var messageHost = MessageHosts[token];             messageHost.Dispatcher.BeginInvoke( (Action)(() =>             {                 messageHost.Items.Add(new Message() { MessageType = messageType, Content = message, Time = time, Uid = Guid.NewGuid().ToString() });             }));         }     }