如何将WPF音频播放动画控件改写为长尾？

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目录

1.实现代码

2.效果预览

1.实现代码

一、创建AnimationAudio.xaml代码如下：xml

目录

• 1.实现代码
• 2.效果预览

1.实现代码

一、创建AnimationAudio.xaml代码如下

<ResourceDictionary xmlns="schemas.microsoft.com/winfx/2006/xaml/presentation"                     xmlns:x="schemas.microsoft.com/winfx/2006/xaml"                     xmlns:controls="clr-namespace:WPFDevelopers.Controls"                     xmlns:helpers="clr-namespace:WPFDevelopers.Helpers">     <ResourceDictionary.MergedDictionaries>         <ResourceDictionary Source="Basic/ControlBasic.xaml"/>         <ResourceDictionary Source="Basic/Animations.xaml"/>     </ResourceDictionary.MergedDictionaries>          <Style TargetType="{x:Type controls:AnimationAudio}" BasedOn="{StaticResource ControlBasicStyle}">         <Setter Property="Width" Value="80"/>         <Setter Property="Height" Value="35"/>         <Setter Property="Cursor" Value="Hand"/>         <Setter Property="Foreground" Value="{DynamicResource WhiteSolidColorBrush}"/>         <Setter Property="Background" Value="{DynamicResource PrimaryNormalSolidColorBrush}"/>         <Setter Property="Template">             <Setter.Value>                 <ControlTemplate TargetType="{x:Type controls:AnimationAudio}">                     <ControlTemplate.Resources>                         <Storyboard x:Key="PlayStoryboard" RepeatBehavior="Forever">                             <ObjectAnimationUsingKeyFrames Storyboard.TargetName="PathAudioTwo" Storyboard.TargetProperty="(Path.Visibility)">                                 <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Hidden}" />                             </ObjectAnimationUsingKeyFrames>                             <ObjectAnimationUsingKeyFrames Storyboard.TargetName="PathAudioThree" Storyboard.TargetProperty="(Path.Visibility)">                                 <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Hidden}" />                             </ObjectAnimationUsingKeyFrames>                             <ObjectAnimationUsingKeyFrames BeginTime="0:0:.3" Duration="0:0:.4" Storyboard.TargetName="PathAudioTwo"                                        Storyboard.TargetProperty="(Path.Visibility)">                                 <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}" />                             </ObjectAnimationUsingKeyFrames>                             <ObjectAnimationUsingKeyFrames BeginTime="0:0:.7" Duration="0:0:.4" Storyboard.TargetName="PathAudioThree"                                        Storyboard.TargetProperty="(Path.Visibility)">                                 <DiscreteObjectKeyFrame KeyTime="0:0:0" Value="{x:Static Visibility.Visible}" />                             </ObjectAnimationUsingKeyFrames>                         </Storyboard>                     </ControlTemplate.Resources>                     <Border x:Name="PART_Border" Background="{TemplateBinding Background}"                              CornerRadius="{TemplateBinding helpers:ControlsHelper.CornerRadius}"                             SnapsToDevicePixels="True" UseLayoutRounding="True">                         <Grid>                             <Grid.ColumnDefinitions>                                 <ColumnDefinition/>                                 <ColumnDefinition/>                             </Grid.ColumnDefinitions>                             <StackPanel Width="20" Height="30" HorizontalAlignment="Left"                                          Orientation="Horizontal" Margin="10,0"                                         RenderTransformOrigin=".5,.5"                                         x:Name="PART_StackPanel">                                                                  <Path Data="{StaticResource PathAudioOne}" Width="4" Height="6"                                        Stretch="Fill" Fill="{TemplateBinding Foreground}"/>                                 <Path x:Name="PathAudioTwo" Data="{StaticResource PathAudioTwo}" Width="6" StrokeThickness="1.5"                                        Stroke="Transparent"                                        Margin="0,7" Stretch="Fill" Fill="{TemplateBinding Foreground}"/>                                 <Path x:Name="PathAudioThree" Data="{StaticResource PathAudioThree}" Width="8" Margin="-3,4" Stretch="Fill"                                        Fill="{TemplateBinding Foreground}" StrokeThickness="2" Stroke="Transparent"/>                             </StackPanel>                             <TextBlock VerticalAlignment="Center"                                         Foreground="{TemplateBinding Foreground}"                                        FontSize="{DynamicResource TitleFontSize}"                                        Grid.Column="1"                                        x:Name="PART_TextBlock">                                 <Run x:Name="PART_RunTimeLength"></Run>                             </TextBlock>                         </Grid>                     </Border>                     <ControlTemplate.Triggers>                         <Trigger Property="IsPlay" Value="True">                             <Trigger.EnterActions>                                 <BeginStoryboard x:Name="PlayBeginStoryboard" Storyboard="{StaticResource PlayStoryboard}"/>                             </Trigger.EnterActions>                             <Trigger.ExitActions>                                 <StopStoryboard BeginStoryboardName="PlayBeginStoryboard"/>                             </Trigger.ExitActions>                         </Trigger>                         <Trigger Property="IsRight" Value="True">                             <Setter Property="Grid.Column" TargetName="PART_TextBlock" Value="0"/>                             <Setter Property="HorizontalAlignment" TargetName="PART_TextBlock" Value="Right"/>                             <Setter Property="Grid.Column" TargetName="PART_StackPanel" Value="1"/>                             <Setter Property="HorizontalAlignment" TargetName="PART_StackPanel" Value="Right"/>                             <Setter Property="RenderTransform" TargetName="PART_StackPanel">                                 <Setter.Value>                                     <TransformGroup>                                         <RotateTransform Angle="180"/>                                     </TransformGroup>                                 </Setter.Value>                             </Setter>                         </Trigger>                     </ControlTemplate.Triggers>                 </ControlTemplate>             </Setter.Value>         </Setter>     </Style> </ResourceDictionary>

二、创建AnimationAudioe.cs代码如下

using System; using System.IO; using System.Linq; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Interop; using WPFDevelopers.Helpers; namespace WPFDevelopers.Controls {     [TemplatePart(Name = RunTemplateName, Type = typeof(Run))]     public partial class AnimationAudio : Control     {         const string RunTemplateName = "PART_RunTimeLength";         private Run _run;         private TimeSpan _timeSpan;         private IntPtr _handle;         private AudioWindow _win = null;         static string[] mediaExtensions = { ".MP3", ".WAV" };         /// <summary>         /// 音频路径         /// </summary>         public string AudioPath         {             get { return (string)GetValue(AudioPathProperty); }             set { SetValue(AudioPathProperty, value); }         }         public static readonly DependencyProperty AudioPathProperty =             DependencyProperty.Register("AudioPath", typeof(string), typeof(AnimationAudio), new PropertyMetadata(string.Empty));         /// <summary>         /// 是否右侧         /// </summary>         public bool IsRight         {             get { return (bool)GetValue(IsRightProperty); }             set { SetValue(IsRightProperty, value); }         }         public static readonly DependencyProperty IsRightProperty =             DependencyProperty.Register("IsRight", typeof(bool), typeof(AnimationAudio), new PropertyMetadata(false));         public bool IsPlay         {             get { return (bool)GetValue(IsPlayProperty); }             set { SetValue(IsPlayProperty, value); }         }         public static readonly DependencyProperty IsPlayProperty =             DependencyProperty.Register("IsPlay", typeof(bool), typeof(AnimationAudio), new PropertyMetadata(false, new PropertyChangedCallback(OnIsPlayChanged)));         private static void OnIsPlayChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)         {             bool newValue = (bool)e.NewValue;             var animationAudio = d as AnimationAudio;             if(newValue != (bool)e.OldValue)             {                 if (newValue)                 {                     animationAudio.Play();                 }                 else                 {                     AudioPlayer.Stop();                 }             }         }         static AnimationAudio()         {             DefaultStyleKeyProperty.OverrideMetadata(typeof(AnimationAudio), new FrameworkPropertyMetadata(typeof(AnimationAudio)));         }                 public override void OnApplyTemplate()         {             base.OnApplyTemplate();             _run = GetTemplateChild(RunTemplateName) as Run;             if (string.IsNullOrWhiteSpace(AudioPath)) return;             if (!File.Exists(AudioPath)) return;             if (!mediaExtensions.Contains(Path.GetExtension(AudioPath), StringComparer.OrdinalIgnoreCase)) return;             _timeSpan = AudioPlayer.GetSoundLength(AudioPath);             if (_timeSpan == TimeSpan.Zero) return;             _run.Text = $"{_timeSpan.Seconds.ToString()}\"";             Width = 80;             if (_timeSpan.Seconds > 5)             {                 Width += _timeSpan.Seconds;             }         }         private void Play()         {             if(_win != null)             {                 _win.Close();                 _win = null;             }             _win = new AudioWindow             {                 Width = 0,                 Height = 0,                 Left = Int32.MinValue,                 Top = Int32.MinValue,                 WindowStyle = WindowStyle.None,                 ShowInTaskbar = false,                 ShowActivated = false,             };             _win.Show();             _win.StopDelegateEvent += _win_StopDelegateEvent;             _handle = new WindowInteropHelper(_win).Handle;             AudioPlayer.PlaySong(AudioPath, _handle);         }                 private void _win_StopDelegateEvent()         {             IsPlay = false;             _win.Close();             _win = null;         }     } }

三、新建AudioWindow.cs代码如下

using System; using System.Windows; using System.Windows.Interop; namespace WPFDevelopers.Controls {     public class AudioWindow:Window     {         const int MM_MCINOTIFY = 0x3B9;         public delegate void StopDelegate();         public event StopDelegate StopDelegateEvent;                  protected override void OnSourceInitialized(EventArgs e)         {             base.OnSourceInitialized(e);             HwndSource hwndSource = PresentationSource.FromVisual(this) as HwndSource;             if (hwndSource != null)             {                 hwndSource.AddHook(new HwndSourceHook(this.WndProc));             }         }                  IntPtr WndProc(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled)         {             switch (msg)             {                 case MM_MCINOTIFY:                     StopDelegateEvent?.Invoke();                     break;             }             return IntPtr.Zero;         }     } }

四、新建AnimationAudioExample.xaml代码如下。

  <UserControl x:Class="WPFDevelopers.Samples.ExampleViews.AnimationAudioExample"              xmlns="schemas.microsoft.com/winfx/2006/xaml/presentation"              xmlns:x="schemas.microsoft.com/winfx/2006/xaml"              xmlns:mc="schemas.openxmlformats.org/markup-compatibility/2006"               xmlns:d="schemas.microsoft.com/expression/blend/2008"               xmlns:local="clr-namespace:WPFDevelopers.Samples.ExampleViews"              xmlns:wpfdev="github.com/WPFDevelopersOrg/WPFDevelopers"              mc:Ignorable="d"               d:DesignHeight="450" d:DesignWidth="800">     <UniformGrid Columns="2" x:Name="MyUniformGrid">         <StackPanel Orientation="Horizontal">             <wpfdev:BreathLamp Width="60" Height="60"                                 LampEffect="Ripple"                                IsLampStart="true"                                Margin="10,0">                 <Ellipse Width="50" Height="50">                     <Ellipse.Fill>                         <ImageBrush ImageSource="pack://application:,,,/WPFDevelopers.Samples;component/Images/Breathe/0.jpg"/>                     </Ellipse.Fill>                 </Ellipse>             </wpfdev:BreathLamp>             <wpfdev:AnimationAudio x:Name="AnimationAudioLeft" MouseDown="AnimationAudioLeft_MouseDown"/>         </StackPanel>         <StackPanel Orientation="Horizontal"                     HorizontalAlignment="Right">             <wpfdev:AnimationAudio x:Name="AnimationAudioRight" IsRight ="true"                                 Background="{DynamicResource SuccessSolidColorBrush}"                                Foreground="Black"                                MouseDown="AnimationAudioLeft_MouseDown"/>             <wpfdev:BreathLamp Width="50" Height="50"                                 LampEffect="Streamer"                                Background="LightGray"                                IsLampStart="True"                                Margin="10,0">                 <Ellipse Width="43" Height="43">                     <Ellipse.Fill>                         <ImageBrush ImageSource="pack://application:,,,/WPFDevelopers.Samples;component/Images/Chat/UserImages/yanjinhua.png"/>                     </Ellipse.Fill>                 </Ellipse>             </wpfdev:BreathLamp>         </StackPanel>             </UniformGrid> </UserControl>                  

六、新建AnimationAudioExample.xaml.cs下

using System; using System.IO; using System.Windows.Controls; using WPFDevelopers.Controls; using WPFDevelopers.Samples.Helpers; namespace WPFDevelopers.Samples.ExampleViews {     /// <summary>     /// 微信公众号:WPF开发者     /// </summary>     public partial class AnimationAudioExample : UserControl     {         public AnimationAudioExample()         {             InitializeComponent();             AnimationAudioLeft.AudioPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resources", "Audio", "HelloWPFDevelopes_en.mp3");             AnimationAudioRight.AudioPath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Resources", "Audio", "HelloWPFDevelopes_zh.mp3");         }         private void AnimationAudioLeft_MouseDown(object sender, System.Windows.Input.MouseButtonEventArgs e)         {             var animationAudio = sender as AnimationAudio;             var animationAudioList = ElementVisualTreeHelper.FindVisualChild<AnimationAudio>(MyUniformGrid);             if (animationAudioList == null) return;             if (!animationAudio.IsPlay)             {                 animationAudioList.ForEach(h =>                 {                     if (h.IsPlay && h != animationAudio)                     {                         h.IsPlay = false;                     }                 });                 animationAudio.IsPlay = true;             }             else                 animationAudio.IsPlay = false;         }     } }

2.效果预览

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