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win10 UWP button

lindexi

2018-08-10 19:16:53 +0800

2018-2-13 17:23:3 +0800

Win10 UWP

Button是一个常用控件，有很多和wpf一样，可以看《深入浅出WPF》，但还有一些虽然常用，但是可能大家不知道的功能

Button常用的就是点击

我们可以在button的click写上

在Button_Click按F12到代码写上点击按钮需要运行

    private void Button\_Click(object sender, RoutedEventArgs e)  
    {  
          //这里写上点击按钮后触发  
    }

除了写在xaml.cs也可以写在ViewModel，ViewModel的写法很简单，我们需要在ViewModel建立一个方法，这个方法的参数为void或object sender, RoutedEventArgs e

假如viewModel有一个方法 ce

在Button可以在Click写

Click="{x:Bind view.ce}"

原来的WPF使用的是Command，实在不好看，用了UWP我都不在WPF写Command

在用ViewModel需要在MainPage.xaml.cs写

viewModel view {set;get;}= new viewModel();

button content可以使用一个元素，这个元素可以是Grid，我们可以做一个圆形头像

先找出一张图，我们把这张图做头像

把图放到项目

<Button Height="100" Width="100" Margin="10,10,10,10" Padding="0" Foreground="{x:Null}" BorderBrush="{x:Null}" Background="{x:Null}">  
    <Button.Content>  
        <Ellipse Margin="0,0,0,0" Height="90" Width="90">  
            <Ellipse.Fill>  
                <ImageBrush ImageSource="Assets/20151226160608688.jpg" />  
            </Ellipse.Fill>  
        </Ellipse>  
     </Button.Content>  
</Button>

注意，放在项目的图片，不是这么简单，具体如何使用，参见 win10 uwp 访问解决方案文件

我们可以修改鼠标在按钮上的样子

button可以设置属性，使用资源
资源可以写在页面

<Page.Resources>

</Page.Resources>

所有按钮使用同样式

<Page.Resources>  
    <Style TargetType="Button">

    </Style>  
</Page.Resources>

按钮的属性用<Setter Property="属性" Value="值"/>

按钮的背景

<Page.Resources>  
    <Style TargetType="Button">  
        <Setter Property="Background" Value="White"/>  
    </Style>  
</Page.Resources>

指定一个样式，key

<Page.Resources>  
    <Style TargetType="Button">  
        <Setter Property="Background" Value="White"/>  
        <Setter Property="Width" Value="100"/>  
        <Setter Property="Height" Value="100"/>  
    </Style>  
    <Style  x:Key="button" TargetType="Button">  
        <Setter Property="Background" Value="White"/>  
        <Setter Property="Width" Value="50"/>  
        <Setter Property="Height" Value="50"/>  
    </Style>  
</Page.Resources>

     <Button Content="默认"/>  
     <Button Style="{StaticResource button}" Content="确定"/>

在设计，点按钮，右击，编辑模板副本，选择当前页

可以看到

<Page.Resources>  
    <Style x:Key="ButtonStyle1" TargetType="Button">  
        <Setter Property="Background" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}"/>  
        <Setter Property="Foreground" Value="{ThemeResource SystemControlForegroundBaseHighBrush}"/>  
        <Setter Property="BorderBrush" Value="{ThemeResource SystemControlForegroundTransparentBrush}"/>  
        <Setter Property="BorderThickness" Value="{ThemeResource ButtonBorderThemeThickness}"/>  
        <Setter Property="Padding" Value="8,4,8,4"/>  
        <Setter Property="HorizontalAlignment" Value="Left"/>  
        <Setter Property="VerticalAlignment" Value="Center"/>  
        <Setter Property="FontFamily" Value="{ThemeResource ContentControlThemeFontFamily}"/>  
        <Setter Property="FontWeight" Value="Normal"/>  
        <Setter Property="FontSize" Value="{ThemeResource ControlContentThemeFontSize}"/>  
        <Setter Property="UseSystemFocusVisuals" Value="True"/>  
        <Setter Property="Template">  
            <Setter.Value>  
                <ControlTemplate TargetType="Button">  
                    <Grid x:Name="RootGrid" Background="{TemplateBinding Background}">  
                        <VisualStateManager.VisualStateGroups>  
                            <VisualStateGroup x:Name="CommonStates">  
                                <VisualState x:Name="Normal">  
                                    <Storyboard>  
                                        <PointerUpThemeAnimation Storyboard.TargetName="RootGrid"/>  
                                    </Storyboard>  
                                </VisualState>  
                                <VisualState x:Name="PointerOver">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="ContentPresenter">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseMediumLowBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <PointerUpThemeAnimation Storyboard.TargetName="RootGrid"/>  
                                    </Storyboard>  
                                </VisualState>  
                                <VisualState x:Name="Pressed">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="RootGrid">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseMediumLowBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="ContentPresenter">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightTransparentBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlHighlightBaseHighBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <PointerDownThemeAnimation Storyboard.TargetName="RootGrid"/>  
                                    </Storyboard>  
                                </VisualState>  
                                <VisualState x:Name="Disabled">  
                                    <Storyboard>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Background" Storyboard.TargetName="RootGrid">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlBackgroundBaseLowBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Foreground" Storyboard.TargetName="ContentPresenter">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledBaseLowBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                        <ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="BorderBrush" Storyboard.TargetName="ContentPresenter">  
                                            <DiscreteObjectKeyFrame KeyTime="0" Value="{ThemeResource SystemControlDisabledTransparentBrush}"/>  
                                        </ObjectAnimationUsingKeyFrames>  
                                    </Storyboard>  
                                </VisualState>  
                            </VisualStateGroup>  
                        </VisualStateManager.VisualStateGroups>  
                        <ContentPresenter x:Name="ContentPresenter" AutomationProperties.AccessibilityView="Raw" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" ContentTemplate="{TemplateBinding ContentTemplate}" ContentTransitions="{TemplateBinding ContentTransitions}" Content="{TemplateBinding Content}" HorizontalContentAlignment="{TemplateBinding HorizontalContentAlignment}" Padding="{TemplateBinding Padding}" VerticalContentAlignment="{TemplateBinding VerticalContentAlignment}"/>  
                    </Grid>  
                </ControlTemplate>  
            </Setter.Value>  
        </Setter>  
    </Style>  
</Page.Resources>

在<VisualState x:Name="Pressed">可以把里面写成这个状态的样子，按钮有正常，按下，鼠标在按钮上，可以对每个修改

点击Pressed更改pressed

看到这里按钮有背景

去掉背景，按F4把背景无画笔

添加过度

记录关键帧

选时间0.5改变背景

选时间，改变背景

点播放可以看到我们做出来的按钮，可以运行。移动到button显示文字

在装机必备移动到搜狐显示搜狐，具体代码
参考：http://blog.csdn.net/lindexi_gd/article/details/50166161

                    <Button Click="souhu\_Click" ToolTipService.ToolTip="搜狐视频" Padding="0" >  
                        <Button.Content>  
                            <Grid>  
                                <Grid.RowDefinitions>  
                                    <RowDefinition Height="auto"/>  
                                    <RowDefinition Height="auto"/>  
                                </Grid.RowDefinitions>  
                                <Image Source="ms-appx:///Assets/搜狐.png" Grid.Row="0" ScrollViewer.VerticalScrollBarVisibility="Disabled" />  
                                <TextBlock Text="搜狐视频" Grid.Row="1" HorizontalAlignment="Center" />  
                            </Grid>  
                        </Button.Content>  
                    </Button>

显示图片

                    <Button Click="souhu\_Click" Padding="0" >  
                        <Button.Content>  
                            <Grid>  
                                <Grid.RowDefinitions>  
                                    <RowDefinition Height="auto"/>  
                                    <RowDefinition Height="auto"/>  
                                </Grid.RowDefinitions>  
                                <Image Source="ms-appx:///Assets/搜狐.png" Grid.Row="0" ScrollViewer.VerticalScrollBarVisibility="Disabled" />  
                                <TextBlock Text="搜狐视频" Grid.Row="1" HorizontalAlignment="Center" />  
                            </Grid>  
                        </Button.Content>  
                        <ToolTipService.ToolTip>  
                            <Image Height="50" Width="50" Source="ms-appx:///Assets/搜狐.png"/>  
                        </ToolTipService.ToolTip>  
                    </Button>

参见：圆角按钮

https://github.com/lindexi/uwp/tree/master/uwp/control/Button

• UWP：使用Behavior实现Button点击动态效果 - 叫我蓝火火 - 博客园