我想为The Live Tile Effect
创建一个ListBox
。
我考虑过在0和ListBox.Items.Count
之间创建一个随机数,然后取出ListBoxItem
并为其设置动画。
我正在使用this进行动画制作。
因此,XAML中的基本动画将如下所示:
xmlns:pl="clr-namespace:Planerator"
<pl:Planerator x:Name="planerator">
<Image Name="logo" Source="somePath">
<Image.Triggers>
<EventTrigger RoutedEvent="Image.MouseLeave">
<BeginStoryboard>
<Storyboard>
<DoubleAnimation Storyboard.TargetName="planerator"
Storyboard.TargetProperty="RotationX"
From="0" To="360"
BeginTime="0:0:0"
Duration="0:0:1"
AutoReverse="False"/>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Image.Triggers>
</Image>
</pl:Planerator>
这是我到目前为止所尝试的:
<ListBox Name="someList"
Loaded="someList_Loaded">
</ListBox>
someList_Loaded
方法:
Random random = new Random();
Planerator planerator = new UI.WPF.Planerator();
planerator.Name = "planerator";
someList.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Background,
new Action(
delegate()
{
do
{
//planerator.Child = (ListBoxItem)someList.Items[random.Next(0, someList.Items.Count - 1)];
DoubleAnimation myDoubleAnimation = new DoubleAnimation()
{ From = 0, To = 360, Duration = new Duration(TimeSpan.FromMilliseconds(1)) };
Storyboard.SetTargetName(planerator, planerator.Name);
Storyboard.SetTargetProperty(myDoubleAnimation, new PropertyPath("RotationX"));
Storyboard storyboard = new Storyboard();
storyboard.Children.Add(myDoubleAnimation);
someList.MouseMove += delegate(object newSender, MouseEventArgs args)
{
storyboard.Begin(currentListItem);
};
//Sleep 30sec
}while(true);
}
));
现在我的问题:
线程正文中的第一行。该投射无效。我如何获得随机ListBoxItem
并将其分配给planerator.Child
?
这一行//Sleep 30sec
:我如何在这里添加等待或睡眠?
创建The Live Tile Effect
,这种方式是可行的还是有更好的方法?
是否会有任何重大的性能问题?
修改
ItemContainerGenerator generator = someList.ItemContainerGenerator;
ListBoxItem currentListItem = generator.ContainerFromIndex(random.Next(0, someList.Items.Count - 1)) as ListBoxItem;
修改
这是我到目前为止所得到的,但没有任何反应:
lstNotifications.Dispatcher.Invoke(System.Windows.Threading.DispatcherPriority.Background,
new Action(
delegate()
{
ItemContainerGenerator generator = lstNotifications.ItemContainerGenerator;
ListBoxItem currentListItem = generator.ContainerFromIndex(random.Next(0, lstNotifications.Items.Count - 1)) as ListBoxItem;
var tempObject = Content;
Content = null;
planerator.Child = currentListItem;
Content = tempObject;
this.RegisterName(planerator.Name, planerator);
DoubleAnimation myDoubleAnimation = new DoubleAnimation() { From = 0, To = 360, Duration = new Duration(TimeSpan.FromMilliseconds(1)) };
Storyboard.SetTargetName(planerator, planerator.Name);
Storyboard.SetTargetProperty(myDoubleAnimation, new PropertyPath(Planerator.RotationXProperty));
Storyboard storyboard = new Storyboard();
storyboard.RepeatBehavior = RepeatBehavior.Forever;
storyboard.Children.Add(myDoubleAnimation);
storyboard.Begin(currentListItem);
}
));
知道为什么没有发生什么事吗?
答案 0 :(得分:1)
我不确定你想要实现的目标,但这里有一些可能有所帮助的东西:
1 - 据我所知,Planerator.Child不是ListBoxItem类型 - 所以指定类型faill - 检查该属性的类型。
2 - 您是否尝试过使用System.Threading.Thread.Sleep(30000); ?
3和4我无法回答,但也许Greg Schechter可以提供帮助:
Dead Simple 3D in WPF和Implementation Details Of The Planerator