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我有一個相對佈局(Xamarin Forms項目)中的SkiaSharp畫布視圖。當我單獨使用畫布時,它會填滿整個頁面。但是當我在相對佈局中使用它時,它不會填充相對佈局的整個空間。如何使畫布填充整個相對佈局?畫布視圖不填充相對佈局(XAML)
XAML
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
xmlns:local="clr-namespace:MyHomeScreen2"
xmlns:views="clr-namespace:SkiaSharp.Views.Forms;assembly=SkiaSharp.Views.Forms"
x:Class="MyHomeScreen2.MainPage">
<RelativeLayout BackgroundColor="Yellow">
<views:SKCanvasView PaintSurface="OnSecondPainting" EnableTouchEvents="True" x:Name="MyCanvas"
RelativeLayout.XConstraint=
"{ConstraintExpression Type=RelativeToParent,
Property=X,
Constant=0}"
RelativeLayout.YConstraint=
"{ConstraintExpression Type=RelativeToParent,
Property=Y,
Constant=0}">
</views:SKCanvasView>
<BoxView Color="Blue"
WidthRequest="100"
HeightRequest="50"
RelativeLayout.XConstraint=
"{ConstraintExpression Type=RelativeToView,
Property=Width,
ElementName=MyCanvas,
Factor=0.5}"
RelativeLayout.YConstraint=
"{ConstraintExpression Type=RelativeToView,
Property=Y,
ElementName=MyCanvas,
Constant=25}" />
</RelativeLayout>
</ContentPage>
您可以設置畫布的X和Y的限制,但沒有寬度和高度 –
設置相對於母公司的寬度和高度與係數設置爲父1 –
我可以把它作爲答案解決? :-)爲中心框我通常使用代碼背後,因爲你需要知道框的大小,我不知道如何在xaml中做到這一點。這可以接受嗎? –