Question

请参阅此Storyboard：

<Storyboard x:Key="visibilityStoryboardn">
            <ObjectAnimationUsingKeyFrames BeginTime="0:0:0" Storyboard.TargetProperty="Visibility">
                <DiscreteObjectKeyFrame KeyTime="0">
                    <DiscreteObjectKeyFrame.Value>
                        <Visibility>Visible</Visibility>
                    </DiscreteObjectKeyFrame.Value>
                </DiscreteObjectKeyFrame>
            </ObjectAnimationUsingKeyFrames>
            <DoubleAnimation BeginTime="0:0:0.0" Storyboard.TargetProperty="Opacity" From="0" To="1" Duration="0:0:2.0"/>
            <DoubleAnimation BeginTime="0:0:10.0" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:2.0"/>
            <ObjectAnimationUsingKeyFrames BeginTime="0:0:2" Storyboard.TargetProperty="Visibility">
                <DiscreteObjectKeyFrame KeyTime="0">
                    <DiscreteObjectKeyFrame.Value>
                        <Visibility>Collapsed</Visibility>
                    </DiscreteObjectKeyFrame.Value>
                </DiscreteObjectKeyFrame>
            </ObjectAnimationUsingKeyFrames>
        </Storyboard>

我尝试将元素Visibility从Collapsed更改为Visible，持续时间为2秒，然后等待10秒，将Visibility更改为{{1} }。

目前，这仅是第一件事，我的意思是这会在2秒钟的时间内将元素更改为Collapsed，但随后立即开始将其隐藏回Visible，但现在没有动画样式。 / p>

Answer 1

我认为您唯一的问题是您为BeginTime="0:0:2"关键帧定义了Collapsed。应该是BeginTime="0:0:12"

<ObjectAnimationUsingKeyFrames BeginTime="0:0:0" Storyboard.TargetProperty="Visibility">
    <DiscreteObjectKeyFrame KeyTime="0:0:0">
        <DiscreteObjectKeyFrame.Value>
            <Visibility>Visible</Visibility>
        </DiscreteObjectKeyFrame.Value>
    </DiscreteObjectKeyFrame>
    <DiscreteObjectKeyFrame KeyTime="0:0:12.0">
        <DiscreteObjectKeyFrame.Value>
            <Visibility>Collapsed</Visibility>
        </DiscreteObjectKeyFrame.Value>
    </DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<DoubleAnimation BeginTime="0:0:0.0" Storyboard.TargetProperty="Opacity" From="0" To="1" Duration="0:0:2.0"/>
<DoubleAnimation BeginTime="0:0:10.0" Storyboard.TargetProperty="Opacity" From="1" To="0" Duration="0:0:2.0"/>

可见性故事板仅部分起作用

1 个答案: