Nóta
Aðgangur að þessari síðu krefst heimildar. Þú getur prófað aðskrá þig inn eða breyta skráasöfnum.
Aðgangur að þessari síðu krefst heimildar. Þú getur prófað að breyta skráasöfnum.
This iOS platform-specific sets the default background color of Cell instances. It's consumed in XAML by setting the Cell.DefaultBackgroundColor bindable property to a Color:
<ContentPage ...
xmlns:ios="clr-namespace:Xamarin.Forms.PlatformConfiguration.iOSSpecific;assembly=Xamarin.Forms.Core">
<StackLayout Margin="20">
<ListView ItemsSource="{Binding GroupedEmployees}"
IsGroupingEnabled="true">
<ListView.GroupHeaderTemplate>
<DataTemplate>
<ViewCell ios:Cell.DefaultBackgroundColor="Teal">
<Label Margin="10,10"
Text="{Binding Key}"
FontAttributes="Bold" />
</ViewCell>
</DataTemplate>
</ListView.GroupHeaderTemplate>
...
</ListView>
</StackLayout>
</ContentPage>
Alternatively, it can be consumed from C# using the fluent API:
using Xamarin.Forms.PlatformConfiguration;
using Xamarin.Forms.PlatformConfiguration.iOSSpecific;
...
var viewCell = new ViewCell { View = ... };
viewCell.On<iOS>().SetDefaultBackgroundColor(Color.Teal);
The ListView.On<iOS> method specifies that this platform-specific will only run on iOS. The Cell.SetDefaultBackgroundColor method, in the Xamarin.Forms.PlatformConfiguration.iOSSpecific namespace, sets the cell background color to a specified Color. In addition, the Cell.DefaultBackgroundColor method can be used to retrieve the current cell background color.
The result is that the background color in a Cell can be set to a specific Color:
