x:Arguments用于明确非默认构造函数的参数,或者泛型构造函数的泛型类
x:FactoryMethod用于明确可初始化对象的工厂方法
可传递的参数类型包括以下种类:
x:Object
x:Boolean
x:Byte
x:Int16
x:Int32
x:Int64
x:Single
x:Double
x:Decimal
x:Char
x:String
x:TimeSpan
x:Array
x:DateTime
x:Arguments例子:
<BoxView HeightRequest="150" WidthRequest="150" HorizontalOptions="Center">
<BoxView.Color>
<Color>
<x:Arguments>
<x:Double>0.25</x:Double> //元素数量必须与构造函数匹配
<x:Double>0.5</x:Double>
<x:Double>0.75</x:Double>
</x:Arguments>
</Color>
</BoxView.Color>
指定泛型类型参数:
<ContentPage ...>
<StackLayout>
<StackLayout.Margin>
<OnPlatform x:TypeArguments="Thickness"> //OnPlatform为泛型类
<On Platform="iOS" Value="0,20,0,0" />
<On Platform="Android" Value="5, 10" />
<On Platform="UWP" Value="10" />
</OnPlatform>
</StackLayout.Margin>
</StackLayout>
</ContentPage>