WPF实现音乐字幕动画

WPF开发者QQ群： 340500857 

前言 

      需要实现类似音乐播放器字幕滚动动画。

 

欢迎转发、分享、点赞，谢谢大家~。  

 

效果预览（更多效果请下载源码体验）：

一、TextBlockCustomControl.cs代码如下：

 public class TextBlockCustomControl : TextBlock {  public static readonly DependencyProperty DurationProperty =    DependencyProperty.Register("Duration", typeof(TimeSpan),    typeof(TextBlockCustomControl), new PropertyMetadata(TimeSpan.FromSeconds(1)));  public TimeSpan Duration  {   get { return (TimeSpan)GetValue(DurationProperty); }   set { SetValue(DurationProperty, value); }  }  public TimeSpan StartDuration  {   get { return (TimeSpan)GetValue(StartDurationProperty); }   set { SetValue(StartDurationProperty, value); }  }  public static readonly DependencyProperty StartDurationProperty =   DependencyProperty.Register("StartDuration", typeof(TimeSpan), typeof(TextBlockCustomControl), new PropertyMetadata(TimeSpan.FromSeconds(1)));  public TextBlockCustomControl()  {   NameScope.SetNameScope(this, new NameScope());   var gradientBrush = new LinearGradientBrush();   gradientBrush.EndPoint = new Point(1, 0.5);   gradientBrush.StartPoint = new Point(0, 0.5);   var stop1 = new GradientStop(Colors.White, 0);   var stop2 = new GradientStop(Colors.White, 1);   var stop3 = new GradientStop(Colors.Gray, 1);   this.RegisterName("GradientStop1", stop1);   this.RegisterName("GradientStop2", stop2);   this.RegisterName("GradientStop3", stop3);   gradientBrush.GradientStops.Add(stop1);   gradientBrush.GradientStops.Add(stop2);   gradientBrush.GradientStops.Add(stop3);   this.Foreground = gradientBrush;   this.Loaded += (s, e) =>   {    Animate();   };  }  public override void OnApplyTemplate()  {   base.OnApplyTemplate();     }  private void Animate()  {   var storyboard = new Storyboard();   var animation1 = new DoubleAnimation();   animation1.From = 0;   animation1.To = 1;   animation1.Duration = Duration;   animation1.BeginTime = StartDuration;   Storyboard.SetTargetName(animation1, "GradientStop2");   Storyboard.SetTargetProperty(animation1,    new PropertyPath(GradientStop.OffsetProperty));   var animation2 = new DoubleAnimation();   animation2.From = 0;   animation2.To = 1;   animation2.Duration = Duration;   animation2.BeginTime = StartDuration;   Storyboard.SetTargetName(animation2, "GradientStop3");   Storyboard.SetTargetProperty(animation2,    new PropertyPath(GradientStop.OffsetProperty));   storyboard.Children.Add(animation1);   storyboard.Children.Add(animation2);   storyboard.Begin(this);     } }

二、MainWindow.xaml代码如下：

<Window x:Class="WPFSongWords.MainWindow"  =""  =""  =""  =""  =""  ="clr-namespace:WPFSongWords"  mc:Ignorable="d"  Title="WPFDevelopers" Height="650" Width="400"  ResizeMode="NoResize" WindowStartupLocation="CenterScreen"  TextOptions.TextFormattingMode="Display" UseLayoutRounding="True"  SnapsToDevicePixels="True" WindowStyle="None" Background="Transparent"  Foreground="White" FontSize="14"> <Window.Resources>  <LinearGradientBrush x:Key="DefaultBackgroundBrush" StartPoint="0,0" EndPoint="0,1">   <GradientStop Color="#FF33B9AD" Offset="0" />   <GradientStop Color="#FF007ACC" Offset="1" />  </LinearGradientBrush> </Window.Resources> <shell:WindowChrome.WindowChrome>  <shell:WindowChrome GlassFrameThickness="-1" CaptionHeight="40"/> </shell:WindowChrome.WindowChrome> <Grid>  <Border Background="{StaticResource DefaultBackgroundBrush}"    UseLayoutRounding="True"    SnapsToDevicePixels="True"   Margin="10">   <Border.Effect>    <DropShadowEffect ShadowDepth="1" BlurRadius="6" Direction="270" Opacity="0.75" Color="#FF211613"/>   </Border.Effect>  </Border>  <Grid Margin="10">   <Grid.RowDefinitions>    <RowDefinition Height="Auto"/>    <RowDefinition/>    <RowDefinition Height="Auto"/>    <RowDefinition Height="60"/>   </Grid.RowDefinitions>   <Grid Height="40" Grid.Row="0">    <Grid.ColumnDefinitions>     <ColumnDefinition/>     <ColumnDefinition Width="Auto"/>    </Grid.ColumnDefinitions>    <TextBlock Text="WPF开发者" VerticalAlignment="Center"       Padding="10,0" FontSize="16"/>    <Button Grid.Column="1" Style="{StaticResource CloseButton}" Width="30"      Click="BtnCloseClick">     <Button.Content>      <Path Data="{StaticResource ClosePath}" Fill="{Binding RelativeSource={RelativeSource AncestorType=Button}, Path=Foreground}"        Height="12" Width="12" Stretch="Uniform" StrokeThickness="0"/>     </Button.Content>    </Button>   </Grid>   <StackPanel HorizontalAlignment="Center" Grid.Row="1">    <TextBlock Text="中华人民共和国国歌" HorizontalAlignment="Center" FontSize="20" Margin="0,10"/>    <ItemsControl ItemsSource="{Binding MusicWordArray,RelativeSource={RelativeSource AncestorType=local:MainWindow}}">     <ItemsControl.ItemTemplate>      <DataTemplate>       <local:TextBlockCustomControl Text="{Binding SongWords}"              StartDuration="{Binding StarTime}"              Duration="{Binding RunTime}"              Block.TextAlignment="Center"              FontSize="15" Margin="0,4"/>      </DataTemplate>     </ItemsControl.ItemTemplate>    </ItemsControl>   </StackPanel>  </Grid> </Grid></Window>

三、MainWindow.xaml.cs代码如下：

using System;using System.Collections;using System.Collections.Generic;using System.Linq;using System.Text;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.Navigation;using System.Windows.Shapes;namespace WPFSongWords{ /// <summary> /// MainWindow.xaml 的交互逻辑 /// </summary> public partial class MainWindow : Window {  public IEnumerable MusicWordArray  {   get { return (IEnumerable)GetValue(MusicWordArrayProperty); }   set { SetValue(MusicWordArrayProperty, value); }  }  public static readonly DependencyProperty MusicWordArrayProperty =   DependencyProperty.Register("MusicWordArray", typeof(IEnumerable), typeof(MainWindow), new PropertyMetadata(null));  public MainWindow()  {   InitializeComponent();   this.Loaded += MainWindow_Loaded;  }  private void MainWindow_Loaded(object sender, RoutedEventArgs e)  {   var musicWords = new List<MusicWord>();   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(1), StarTime = TimeSpan.FromSeconds(0), SongWords = "作词 : 田汉" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(1), StarTime = TimeSpan.FromSeconds(1), SongWords = "作曲 : 聂耳" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(0.5), StarTime = TimeSpan.FromSeconds(2), SongWords = "起来！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(2), StarTime = TimeSpan.FromSeconds(2.5), SongWords = "不愿做奴隶的人们！！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(4), StarTime = TimeSpan.FromSeconds(4.5), SongWords = "把我们的血肉，筑成我们新的长城！"});   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(3), StarTime = TimeSpan.FromSeconds(8.5), SongWords = "中华民族到了最危险的时候，" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(3.5), StarTime = TimeSpan.FromSeconds(11.5), SongWords = "每个人被迫着发出最后的吼声。" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(0.5), StarTime = TimeSpan.FromSeconds(15), SongWords = "起来！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(0.5), StarTime = TimeSpan.FromSeconds(15.5), SongWords = "起来！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(0.5), StarTime = TimeSpan.FromSeconds(16), SongWords = "起来！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(4.5), StarTime = TimeSpan.FromSeconds(16.5), SongWords = "我们万众一心，冒着敌人的炮火前进！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(2), StarTime = TimeSpan.FromSeconds(21), SongWords = "冒着敌人的炮火前进！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(0.5), StarTime = TimeSpan.FromSeconds(23), SongWords = "前进！" });   musicWords.Add(new MusicWord { RunTime = TimeSpan.FromSeconds(0.5), StarTime = TimeSpan.FromSeconds(23.5), SongWords = "前进！进！" });   MusicWordArray = musicWords;  }  private void BtnCloseClick(object sender, RoutedEventArgs e)  {   Close();  } } public class MusicWord {  public TimeSpan RunTime { get; set; }  public TimeSpan StarTime { get; set; }  public string SongWords { get; set; } }}

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blogs： https://www.cnblogs.com/yanjinhua/p/14345136.html

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WPF开发者QQ群：340500857前言需要实现类似音乐播放器字幕滚动动画。欢迎转发、分享、点赞，谢谢大家~。效果预览（更多效果请下载源码体验）：一、TextBlockCustomControl.cs代码如下：publicclassTextBlockCustomControl:TextBlock{publicstaticreadonlyDependencyPropertyDurationProp
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