WPF打字機效果
阿新 • • 發佈:2019-03-23
each ani eat code tor property one ret block
public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); TypewriteTextblock("我愛北京天安門,我愛祖國",this.TextBlockTest,new TimeSpan(1000 * 1000 * 10*10)); } private void TypewriteTextblock(string textToAnimate, TextBlock txt, TimeSpan timeSpan) { Storyboard story= new Storyboard(); story.FillBehavior = FillBehavior.HoldEnd; story.RepeatBehavior = RepeatBehavior.Forever; DiscreteStringKeyFrame discreteStringKeyFrame; StringAnimationUsingKeyFrames stringAnimationUsingKeyFrames = new StringAnimationUsingKeyFrames(); stringAnimationUsingKeyFrames.Duration= new Duration(timeSpan); string tmp = string.Empty; foreach (char c in textToAnimate) { discreteStringKeyFrame = new DiscreteStringKeyFrame(); discreteStringKeyFrame.KeyTime = KeyTime.Paced; tmp += c; discreteStringKeyFrame.Value= tmp; stringAnimationUsingKeyFrames.KeyFrames.Add(discreteStringKeyFrame); } Storyboard.SetTargetName(stringAnimationUsingKeyFrames, txt.Name); Storyboard.SetTargetProperty(stringAnimationUsingKeyFrames, new PropertyPath(TextBlock.TextProperty)); story.Children.Add(stringAnimationUsingKeyFrames); story.Begin(txt); } }
WPF打字機效果