C# 为UWP滑块的拇指设置动画
我正在UWP应用程序中使用滑块XAML控件。每当我们点击滑块并更改其值时,我希望滑块拇指在从旧位置移动到新位置时只显示平移动画。如何实现这一点?您可以使用属性获取最后一个值,并播放动画将最后一个值设置为当前值 在xaml中添加滑块C# 为UWP滑块的拇指设置动画,c#,windows,uwp,win-universal-app,uwp-xaml,C#,Windows,Uwp,Win Universal App,Uwp Xaml,我正在UWP应用程序中使用滑块XAML控件。每当我们点击滑块并更改其值时,我希望滑块拇指在从旧位置移动到新位置时只显示平移动画。如何实现这一点?您可以使用属性获取最后一个值,并播放动画将最后一个值设置为当前值 在xaml中添加滑块 <Slider x:Name="Slider" Value="{x:Bind Value,Mode=TwoWay}"/> 值可以设置可以开始情节提要的\u lastValue 在主页代码中为滑块添加PointerPressedEvent和Poin
<Slider x:Name="Slider" Value="{x:Bind Value,Mode=TwoWay}"/>
值可以设置可以开始情节提要的\u lastValue
在主页代码中为滑块添加PointerPressedEvent和PointerReleasedEvent将处理此问题
public MainPage()
{
InitializeComponent();
Slider.AddHandler(PointerPressedEvent, new PointerEventHandler(Slider_OnPointerPressed), true);
Slider.AddHandler(PointerReleasedEvent, new PointerEventHandler(Slider_OnPointerReleased), true);
}
我将点击点保存在已压缩的滑动点中,并比较已压缩的滑动点中的当前点。用户可以单击应开始动画的滑块,并拖动不应开始动画的拇指
private void Slider_OnPointerPressed(object sender, PointerRoutedEventArgs e)
{
var slider = (Slider) sender;
ClickPoint = e.GetCurrentPoint(slider).Position;
}
private Point ClickPoint { set; get; }
private void Slider_OnPointerReleased(object sender, PointerRoutedEventArgs e)
{
var slider = (Slider) sender;
var point = e.GetCurrentPoint(slider).Position;
var x = point.X - ClickPoint.X;
var y = point.Y - ClickPoint.Y;
var length = x * x + y * y;
if (length < 10)
{
AnimationValue();
}
}
private void AnimationValue()
{
var storyboard = new Storyboard();
var animation = new DoubleAnimation
{
From = _lastValue,
To = Value,
Duration = TimeSpan.FromSeconds(2),
EasingFunction = new CubicEase(),
EnableDependentAnimation = true
};
Storyboard.SetTarget(animation, Slider);
Storyboard.SetTargetProperty(animation, "Value");
storyboard.BeginTime = TimeSpan.Zero;
storyboard.Children.Add(animation);
storyboard.Begin();
_storyboard = storyboard;
}
您可以自定义持续时间
和测量功能
来更改时间
全部输入代码
如果你能读中文,请读我的,因为我的英语很差,我担心我不能准确地告诉你我的意思。你可以使用属性获取最后一个值,并播放动画将最后一个值设置为当前值
在xaml中添加滑块
<Slider x:Name="Slider" Value="{x:Bind Value,Mode=TwoWay}"/>
值可以设置可以开始情节提要的\u lastValue
在主页代码中为滑块添加PointerPressedEvent和PointerReleasedEvent将处理此问题
public MainPage()
{
InitializeComponent();
Slider.AddHandler(PointerPressedEvent, new PointerEventHandler(Slider_OnPointerPressed), true);
Slider.AddHandler(PointerReleasedEvent, new PointerEventHandler(Slider_OnPointerReleased), true);
}
我将点击点保存在已压缩的滑动点中,并比较已压缩的滑动点中的当前点。用户可以单击应开始动画的滑块,并拖动不应开始动画的拇指
private void Slider_OnPointerPressed(object sender, PointerRoutedEventArgs e)
{
var slider = (Slider) sender;
ClickPoint = e.GetCurrentPoint(slider).Position;
}
private Point ClickPoint { set; get; }
private void Slider_OnPointerReleased(object sender, PointerRoutedEventArgs e)
{
var slider = (Slider) sender;
var point = e.GetCurrentPoint(slider).Position;
var x = point.X - ClickPoint.X;
var y = point.Y - ClickPoint.Y;
var length = x * x + y * y;
if (length < 10)
{
AnimationValue();
}
}
private void AnimationValue()
{
var storyboard = new Storyboard();
var animation = new DoubleAnimation
{
From = _lastValue,
To = Value,
Duration = TimeSpan.FromSeconds(2),
EasingFunction = new CubicEase(),
EnableDependentAnimation = true
};
Storyboard.SetTarget(animation, Slider);
Storyboard.SetTargetProperty(animation, "Value");
storyboard.BeginTime = TimeSpan.Zero;
storyboard.Children.Add(animation);
storyboard.Begin();
_storyboard = storyboard;
}
您可以自定义持续时间
和测量功能
来更改时间
全部输入代码
如果你能读中文,请读我的,因为我的英语很差,我担心我不能准确地告诉你我的意思