Xamarin XAML Language Tutorial Basic View CONTENTVIEWG Architecture scope Framework

Xamarin XAML Language Tutorial Basic View CONTENTVIEWG Architecture scope Framework

The Contentview view basically has three functions, which are described in turn.

(1) Scope frame: Contentview view you can construct a scoping framework to constrain the child elements in it.

Example 14-1:contentviewscopeframe the following will use Contentview to construct a scope framework to constrain its child elements. The code is as follows:

• <?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:contentviewscopeframe"
• x:class= "Contentviewscopeframe.mainpage" >
• <contentview backgroundcolor= "#B3EE3A"
• widthrequest= "300"
• heightrequest= "300"
• Horizontaloptions= "Center"
• verticaloptions= "Center" >
• <label text= "Hello,xamarin.forms"
• Fontattributes= "Bold"
• Fontsize= "18"
• Horizontaloptions= "End"
• verticaloptions= "End"/>
• </ContentView>
• </ContentPage>

In this code, we use the Contentview view as the scope frame, and the label can only be laid out in this frame. When you run the program, you see the effect shown in 14.8~14.9.

Xamarin XAML Language Tutorial Basic View CONTENTVIEWG Architecture scope Framework