You can develop it using a Grid or a Frame to create a popup overlay; implement INotifyPropertyChanged
to update the UI when CurrentPageIndex
changes; and ensure the changes are being reflected correctly
Something like this:
using System.Windows.Input;
using System.ComponentModel;
using System.Runtime.CompilerServices;
public class OnboardingViewModel : INotifyPropertyChanged
{
private int _currentPageIndex;
public int CurrentPageIndex
{
get => _currentPageIndex;
set
{
_currentPageIndex = value;
OnPropertyChanged();
}
}
private bool _isTutorialVisible = true;
public bool IsTutorialVisible
{
get => _isTutorialVisible;
set
{
_isTutorialVisible = value;
OnPropertyChanged();
}
}
public ICommand PreviousCommand { get; }
public ICommand NextCommand { get; }
public ICommand SkipCommand { get; }
public OnboardingViewModel()
{
PreviousCommand = new Command(GoToPreviousPage);
NextCommand = new Command(GoToNextPage);
SkipCommand = new Command(SkipTutorial);
}
private void GoToPreviousPage()
{
if (CurrentPageIndex > 0)
{
CurrentPageIndex--;
}
}
private void GoToNextPage()
{
if (CurrentPageIndex < 4)
{
CurrentPageIndex++;
}
}
private void SkipTutorial()
{
IsTutorialVisible = false;
}
public event PropertyChangedEventHandler PropertyChanged;
protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
}
<Grid>
<Frame x:Name="TutorialPopup" BackgroundColor="Green" CornerRadius="10" Padding="10" IsVisible="{Binding IsTutorialVisible}">
<StackLayout>
<Label Text="Label Text" TextColor="White" />
<StackLayout Orientation="Horizontal" HorizontalOptions="Center" VerticalOptions="End">
<Button Text="Previous" Command="{Binding PreviousCommand}" />
<Button Text="Next" Command="{Binding NextCommand}" />
<Button Text="Skip" Command="{Binding SkipCommand}" />
</StackLayout>
</StackLayout>
</Frame>
</Grid>
Please let me know if this works for you
Best regards!