sharee.bike-App/Meinkonrad/TINK/View/FindBike/FindBikePage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
            xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
            x:Class="TINK.View.FindBike.FindBikePage"
            xmlns:local_bike="clr-namespace:TINK.View.Bike">
    <ContentPage.Resources>
        <ResourceDictionary>
            <local_bike:BikeViewCellTemplateSelector x:Key="bikeTemplateSelector"/>
        </ResourceDictionary>
    </ContentPage.Resources>
    <ContentPage.Content>
        <Frame>
            <StackLayout>
                <Entry 
                    Placeholder="Fahrrad-Nummer bitte hier eingeben"
                    IsVisible="{Binding IsSelectBikeVisible}"
                    MaxLength="10"
                    CursorPosition="0"
                    Text="{Binding BikeIdUserInput}">
                </Entry>
                <Button                    
                    Text="Rad Wählen"
                    IsEnabled="{Binding IsSelectBikeEnabled}"
                    IsVisible="{Binding IsSelectBikeVisible}"
                    Command="{Binding OnSelectBikeRequest}">
                </Button>
                <ListView
                    x:Name="FindBikeListView"
                    SelectionMode="None"
                    SelectedItem="{Binding SelectedBike}"
                    IsEnabled="{Binding IsIdle}"                
                    IsVisible="{Binding IsBikesListVisible}"
                    HasUnevenRows="True"
                    ItemTemplate="{StaticResource bikeTemplateSelector}"/>
                <StackLayout 
                    VerticalOptions="EndAndExpand"
                    Orientation="Horizontal">
                    <Label 
                        HeightRequest="20" 
                        Text="{Binding StatusInfoText}"
                        VerticalOptions="Center"
                        HorizontalOptions="FillAndExpand"/>
                    <ActivityIndicator IsRunning="{Binding IsRunning}"
                         IsVisible="{Binding IsRunning}"
                          HeightRequest="20"
                          VerticalOptions="CenterAndExpand"
                          HorizontalOptions="End">
                        <ActivityIndicator.WidthRequest>
                            <OnPlatform x:TypeArguments="x:Double" iOS="40" Android="40" WinPhone="40" />
                        </ActivityIndicator.WidthRequest>
                        <ActivityIndicator.Color>
                            <OnPlatform x:TypeArguments="Color"
                      iOS="#2499CE" WinPhone="#2499CE" />
                        </ActivityIndicator.Color>
                    </ActivityIndicator>
                </StackLayout>
            </StackLayout>
        </Frame>
    </ContentPage.Content>
</ContentPage>