更改 Xamarin 移动应用程序的工具栏颜色
Change Toolbar Color for Xamarin Mobile App
我是 xamarin.forms 开发的新手,我正在使用 VisualStudio 2019 来实现同样的目标。我正在开发一个示例 shell 应用程序,但无法更改工具栏的颜色(图片中的蓝色)。谁能帮我解决这个问题。
我们可以通过在 shell.xaml
中添加 BackgroundColor="Green"
来设置背景颜色
例如我们设置它Green
<Shell xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:d="http://xamarin.com/schemas/2014/forms/design"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
xmlns:local="clr-namespace:xxx"
Title="xxx"
BackgroundColor="Green"
x:Class="xxx.AppShell">
这将使 TabBar
的颜色同时变为绿色。所以我们应该为 TabBar
.
创建样式
<Shell.Resources>
<ResourceDictionary>
<Color x:Key="NavigationPrimary">#2196F3</Color> //color of TabBar
<Style x:Key="BaseStyle" TargetType="Element">
<Setter Property="Shell.BackgroundColor" Value="{StaticResource NavigationPrimary}" />
<Setter Property="Shell.ForegroundColor" Value="White" />
<Setter Property="Shell.TitleColor" Value="White" />
<Setter Property="Shell.DisabledColor" Value="#B4FFFFFF" />
<Setter Property="Shell.UnselectedColor" Value="#95FFFFFF" />
<Setter Property="Shell.TabBarBackgroundColor" Value="{StaticResource NavigationPrimary}" />
<Setter Property="Shell.TabBarForegroundColor" Value="White"/>
<Setter Property="Shell.TabBarUnselectedColor" Value="#95FFFFFF"/>
<Setter Property="Shell.TabBarTitleColor" Value="White"/>
</Style>
<Style x:Key="MyBaseStyle" TargetType="Element">
<Setter Property="Shell.ForegroundColor" Value="White" />
<Setter Property="Shell.TitleColor" Value="White" />
<Setter Property="Shell.DisabledColor" Value="#B4FFFFFF" />
<Setter Property="Shell.UnselectedColor" Value="#95FFFFFF" />
<Setter Property="Shell.TabBarBackgroundColor" Value="{StaticResource NavigationPrimary}" />
<Setter Property="Shell.TabBarForegroundColor" Value="White"/>
<Setter Property="Shell.TabBarUnselectedColor" Value="#95FFFFFF"/>
<Setter Property="Shell.TabBarTitleColor" Value="White"/>
</Style>
<Style TargetType="ShellItem" BasedOn="{StaticResource BaseStyle}" />
<Style TargetType="TabBar" BasedOn="{StaticResource MyBaseStyle}" />
</ResourceDictionary>
</Shell.Resources>
<!-- Your Pages -->
<TabBar >
<Tab Title="xxx" Icon="xxx" >
<ShellContent ContentTemplate="{DataTemplate xxx}" />
</Tab>
<Tab Title="xxx" Icon="xxx">
<ShellContent ContentTemplate="{DataTemplate xxx}" />
</Tab>
</TabBar>
我是 xamarin.forms 开发的新手,我正在使用 VisualStudio 2019 来实现同样的目标。我正在开发一个示例 shell 应用程序,但无法更改工具栏的颜色(图片中的蓝色)。谁能帮我解决这个问题。
我们可以通过在 shell.xaml
BackgroundColor="Green"
来设置背景颜色
例如我们设置它Green
<Shell xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:d="http://xamarin.com/schemas/2014/forms/design"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
mc:Ignorable="d"
xmlns:local="clr-namespace:xxx"
Title="xxx"
BackgroundColor="Green"
x:Class="xxx.AppShell">
这将使 TabBar
的颜色同时变为绿色。所以我们应该为 TabBar
.
<Shell.Resources>
<ResourceDictionary>
<Color x:Key="NavigationPrimary">#2196F3</Color> //color of TabBar
<Style x:Key="BaseStyle" TargetType="Element">
<Setter Property="Shell.BackgroundColor" Value="{StaticResource NavigationPrimary}" />
<Setter Property="Shell.ForegroundColor" Value="White" />
<Setter Property="Shell.TitleColor" Value="White" />
<Setter Property="Shell.DisabledColor" Value="#B4FFFFFF" />
<Setter Property="Shell.UnselectedColor" Value="#95FFFFFF" />
<Setter Property="Shell.TabBarBackgroundColor" Value="{StaticResource NavigationPrimary}" />
<Setter Property="Shell.TabBarForegroundColor" Value="White"/>
<Setter Property="Shell.TabBarUnselectedColor" Value="#95FFFFFF"/>
<Setter Property="Shell.TabBarTitleColor" Value="White"/>
</Style>
<Style x:Key="MyBaseStyle" TargetType="Element">
<Setter Property="Shell.ForegroundColor" Value="White" />
<Setter Property="Shell.TitleColor" Value="White" />
<Setter Property="Shell.DisabledColor" Value="#B4FFFFFF" />
<Setter Property="Shell.UnselectedColor" Value="#95FFFFFF" />
<Setter Property="Shell.TabBarBackgroundColor" Value="{StaticResource NavigationPrimary}" />
<Setter Property="Shell.TabBarForegroundColor" Value="White"/>
<Setter Property="Shell.TabBarUnselectedColor" Value="#95FFFFFF"/>
<Setter Property="Shell.TabBarTitleColor" Value="White"/>
</Style>
<Style TargetType="ShellItem" BasedOn="{StaticResource BaseStyle}" />
<Style TargetType="TabBar" BasedOn="{StaticResource MyBaseStyle}" />
</ResourceDictionary>
</Shell.Resources>
<!-- Your Pages -->
<TabBar >
<Tab Title="xxx" Icon="xxx" >
<ShellContent ContentTemplate="{DataTemplate xxx}" />
</Tab>
<Tab Title="xxx" Icon="xxx">
<ShellContent ContentTemplate="{DataTemplate xxx}" />
</Tab>
</TabBar>