小编jac*_*per的帖子

我刚刚学习 XAML 和 Xamrin。我正在尝试了解静态样式的工作原理。这是我的 XAML 代码：

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:local="clr-namespace:Styles"
             x:Class="Styles.MainPage">

    <ContentPage.Resources>
        <ResourceDictionary>
            <Style x:key="buttonStyle" TargetType="Button">
                <Setter Property="HorizontalOptions" Value="Center"/>
                <Setter Property="VerticalOptions" Value="Center" />
                <Setter Property="TextColor" Value="Red"/>
                <Setter Property="FontSize" Value="Small"/>
            </Style>
            <Style TargetType="Label">
                <Setter Property="HorizontalOptions" Value="Center"/>
                <Setter Property="VerticalOptions" Value="Center" />
                <Setter Property="TextColor" Value="Blue"/>
                <Setter Property="FontSize" Value="20"/>
            </Style>
            <Style x:key="baseStyle" TargetType="View">
                <Setter Property="HorizontalOptions" Value="Center"/>
                <Setter Property="VerticalOptions" Value="Center" />
            </Style>
            <Style x:key="entryStyle" TargetType="Entry" BasedOn="{StaticResource baseStyle}">
                <Setter Property="TextColor" Value="Green"/>
            </Style>
        </ResourceDictionary>
    </ContentPage.Resources> 

    <ContentPage.Content>
        <StackLayout Padding="20">
            <Label Text="This is label 1 …