文章目錄
斷更了好幾個月,唯一可以安慰自己的藉口就是過年忙,工作忙,其實還不是自己懶嘛,這次重新拾筆,必定要完結整個AngleSix的這個WPF系列,一個月內,供37集
Storyboard Animations
這一節主要實現簡單的storyboard動畫,入門級
1.Buttons.xaml
在原Triggers的基礎上,把鼠標進入和離開的事件改爲了EventTrigger,需要實現這個動畫的過程,還真的使用EventTrigger,因爲Trigger本身不支持Storyboard,樣式不算太複雜,這裏直接上代碼都可以看得懂,設置了一個0.3秒的顏色漸變動畫
<EventTrigger RoutedEvent="MouseEnter">
<BeginStoryboard>
<Storyboard>
<ColorAnimation To="{StaticResource WordBlue}" Duration="0:0:0.3"
Storyboard.TargetName="border" Storyboard.TargetProperty="Background.Color" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="MouseLeave">
<BeginStoryboard>
<Storyboard>
<ColorAnimation To="{StaticResource WordOrange}" Duration="0:0:0.3"
Storyboard.TargetName="border" Storyboard.TargetProperty="Background.Color" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
2.BasePage.cs
BasePage 是在繼承Page的基礎上的一個基類,主要實現頁面加載的時候,從右到左漸入,頁面退出時,也是從右到左漸出,後面的LoginPage則是繼承這個BasePage的一個實例,注意XAML頭那裏用的是“local:BasePage”這個很重要,代碼行數多,我就刪掉註釋部分了
public class BasePage : Page
{
public PageAnimation PageLoadAnimation { get; set; } = PageAnimation.SlideAndFadeInFromRight;
public PageAnimation PageUnLoadAnimation { get; set; } = PageAnimation.SlideAndFadeOutToLeft;
public float SlideSeconds { get; set; } = 0.8f;
public BasePage()
{
if (this.PageLoadAnimation != PageAnimation.None)
{
this.Visibility = System.Windows.Visibility.Collapsed;
}
this.Loaded += BasePage_Loaded;
}
private async void BasePage_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
await AnimateIn();
}
public async Task AnimateIn()
{
if (this.PageLoadAnimation == PageAnimation.None)
{
return;
}
switch (this.PageLoadAnimation)
{
case PageAnimation.SlideAndFadeInFromRight:
await this.SlideAndFadeInFromRight(this.SlideSeconds);
break;
default:
break;
}
}
public async Task AnimateOut()
{
if (this.PageUnLoadAnimation == PageAnimation.None)
{
return;
}
switch (this.PageUnLoadAnimation)
{
case PageAnimation.SlideAndFadeOutToLeft:
await this.SlideAndFadeOutToLeft(this.SlideSeconds );
break;
default:
break;
}
}
3.PageAnimations.cs && StoryboardHelpers.cs
這兩個文件是整節課的關鍵了,其實就是怎麼實現一個storyboard動畫的關鍵,這個文件在後面還會繼續擴展,具體流程是,把頁面Page作爲參數傳入storyboard,然後設定動畫時間,修改頁面相對頁面Page容器(Window)的Margin屬性,以實現漸入漸出的效果
public static async Task SlideAndFadeInFromRight(this Page page,float seconds)
{
var sb = new Storyboard();
sb.AddSlideFormRight(seconds, page.WindowWidth);
sb.AddFadeIn(seconds);
sb.Begin(page);
page.Visibility = Visibility.Visible;
await Task.Delay((int)(seconds * 1000));
}
public static async Task SlideAndFadeOutToLeft(this Page page, float seconds)
{
var sb = new Storyboard();
sb.AddSlideToLeft(seconds, page.WindowWidth);
sb.AddFadeOut(seconds);
sb.Begin(page);
page.Visibility = Visibility.Visible;
await Task.Delay((int)(seconds * 1000));
}
///“StoryboardHelpers.cs”這裏只展示部分,細節可以學習視頻,一步一步過來,收穫會更加的深刻
public static class StoryboardHelpers
{
public static void AddSlideFormRight(this Storyboard storyboard,float seconds,double offset,float decelerationRatio = 0.9f)
{
var animation = new ThicknessAnimation
{
Duration = new System.Windows.Duration(TimeSpan.FromSeconds(seconds)),
From = new System.Windows.Thickness(offset, 0, -offset, 0),
To = new System.Windows.Thickness(0),
DecelerationRatio = decelerationRatio
};
Storyboard.SetTargetProperty(animation, new System.Windows.PropertyPath("Margin"));
storyboard.Children.Add(animation);
}
}
4.總結
這個基礎頁面漸入漸出動畫的實現,正是我們現在頁面UX的常用方式,會讓操作感受起來不會單調,也更能體現流程性,
想支付寶,微信APP,在同一個功能頁內,使用的是左右的漸入漸出,在每個功能頁的打開和關閉,則是上下的漸入漸出,借鑑學習,參考,還是很不錯。
5.視頻鏈接
鏈接:https://pan.baidu.com/s/1DWR_vKEANQh7n73Z4HRGhQ
提取碼:702r
last modified:2019年4月26日17:21:59(1)