Xamarin 有没有办法定制我经常使用的标签？

在我的Xamarin XAML中，我多次使用：

<Label Text="{x:Static local:FontAwesome.FACheck}" FontFamily="FontAwesome" 
   XAlign="Center" FontSize="13" 
   TextColor="#1E90FF" />

---

有没有一种使用C的方法，我可以创建一个自定义版本的Label并使用它，这样我就不必一直指定字体和其他东西了？

也许，你可以在你的App.xaml中使用

样式

<Application xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="YourAPp.App">
    <Application.Resources>
       <ResourceDictionary>
            <Style x:Key="FACheck" TargetType="Label">
                <Setter Property="Text" Value="{x:Static local:FontAwesome.FACheck}"/>
                <Setter Property="FontFamily" Value="FontAwesome"/>
                <Setter Property="XAlign" Value="Center"/>
                <Setter Property="FontSize" Value="13"/>
                <Setter Property="TextColor" Value="#1E90FF"/>
            </Style>
       <ResourceDictionary>
    </Application.Resources>
</Application>

要在C#中创建样式，请参见此

C代码示例：（在应用程序类中设置资源字典）

您可以在C#类中创建具有以下样式的控件：

或者在xaml中将其作为静态资源访问：

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="Styles.ApplicationStylesPage" Title="Application" Icon="xaml.png">
       <ContentPage.Content>
        <StackLayout Padding="0,20,0,0">
            <Button Text="These buttons" Style="{StaticResource buttonStyle}" />
            <Button Text="are demonstrating" Style="{StaticResource buttonStyle}" />
            <Button Text="application style overrides" Style="{StaticResource buttonStyle}" />
        </StackLayout>
    </ContentPage.Content>
</ContentPage>

创建您的类并在任何地方使用它

public class MyAwesomeLabel : Xamarin.Forms.Label
{
    public MyAwesomeLabel()
    {
        FontFamily = "FontAwesome";
        XAlign = Xamarin.Forms.TextAlignment.Center; //deprecated BTW
        FontSize = 13;
        TextColor = Color.FromHex(0x1E90FF);
        //etc
    }
}

感谢上帝，你的建议看起来很有趣。我投了赞成票，但还没有点击“接受”。我也可以在C#中创建此资源吗？是的，您可以在C#中创建此资源，请记住XAML只是C#代码上的syntac sugar。@Alan您可以改用代码：）。我更新了我的答案
public class App : Application
{
    public App ()
    {
        var buttonStyle = new Style (typeof(Button)) {
            Setters = {
                ...
                new Setter { Property = Button.TextColorProperty,   Value = Color.Teal }
                new Setter { Property = Button.BackgroundColor,   Value = Color.White }

                // add more setters for the properties that you want to set here
            }
        };

        // add this style into your resource dictionary.
        Resources = new ResourceDictionary ();
        Resources.Add ("buttonStyle", buttonStyle);
        ...
    }
    ...
}

public class ApplicationStylesPageCS : ContentPage
{
    public ApplicationStylesPageCS ()
    {
        ...
        Content = new StackLayout {
            Children = {
                new Button { Text = "These buttons", Style = (Style)Application.Current.Resources ["buttonStyle"] },
                new Button { Text = "are demonstrating", Style = (Style)Application.Current.Resources ["buttonStyle"] },
                new Button { Text = "application styles", Style = (Style)Application.Current.Resources ["buttonStyle"]
                }
            }
        };
    }
}

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms" xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" x:Class="Styles.ApplicationStylesPage" Title="Application" Icon="xaml.png">
       <ContentPage.Content>
        <StackLayout Padding="0,20,0,0">
            <Button Text="These buttons" Style="{StaticResource buttonStyle}" />
            <Button Text="are demonstrating" Style="{StaticResource buttonStyle}" />
            <Button Text="application style overrides" Style="{StaticResource buttonStyle}" />
        </StackLayout>
    </ContentPage.Content>
</ContentPage>

public class MyAwesomeLabel : Xamarin.Forms.Label
{
    public MyAwesomeLabel()
    {
        FontFamily = "FontAwesome";
        XAlign = Xamarin.Forms.TextAlignment.Center; //deprecated BTW
        FontSize = 13;
        TextColor = Color.FromHex(0x1E90FF);
        //etc
    }
}