public static async Task ShowAsync(PhotoSelectorOptions options, Action <PicSelectionResult> onCompletionHandler)
{
var page = new ContentPage();
var vm = new PicSelectorViewModel(page, options);
await vm.InitializeAsync();
page.Content = new PicSelectorView(vm);
await Application.Current.MainPage.Navigation.PushModalAsync(page);
// after the page is done, go ahead and run the 'onCompleteHandler' to store the user-selected image
page.Disappearing += (sender, args) => onCompletionHandler(vm.CropViewModel.PicSelectionResult);
}
public PicSelectorView(PicSelectorViewModel viewModel)
{
BindingContext = viewModel;
InitializeComponent();
SizeChanged += (sender, args) => viewModel.CropViewModel.Resized(Width, Height);
}