public ExtendedScrollView ()
{
InitializeComponent ();
var container = new StackLayout () {
HorizontalOptions= LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand };
var buttonToScroll = new Button () { Text = "Scroll to end" };
container.Children.Add (buttonToScroll);
for (int i = 0; i < 10; i++) {
container.Children.Add (new Image {
Aspect = Aspect.AspectFill,
Source = ImageSource.FromUri (new Uri("http://www.stockvault.net/data/2011/05/31/124348/small.jpg")),
HeightRequest = _imageHeight
});
}
var sv = new Xamarin.Forms.Labs.Controls.ExtendedScrollView { Content = container, HorizontalOptions= LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand};
sv.Scrolled+= async (ScrollView arg1, Rectangle arg2) => {
if(arg2.Y > sv.Bounds.Height && !_displayAlert)
{
_displayAlert = true;
await DisplayAlert("Scroll event", "User scrolled pass bounds","Ok","cancel");
}
};
buttonToScroll.Clicked+= (object sender, EventArgs e) => {
sv.Position = new Point(sv.Position.X, sv.ContentSize.Height-_imageHeight);
};
Content = sv;
}
public ExtendedScrollView()
{
InitializeComponent();
var container = new StackLayout()
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
var buttonToScroll = new Button()
{
Text = "Scroll to end"
};
container.Children.Add(buttonToScroll);
for (int i = 0; i < 10; i++)
{
container.Children.Add(new Image {
Aspect = Aspect.AspectFill,
Source = ImageSource.FromUri(new Uri("http://www.stockvault.net/data/2011/05/31/124348/small.jpg")),
HeightRequest = _imageHeight
});
}
var sv = new Xamarin.Forms.Labs.Controls.ExtendedScrollView {
Content = container, HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
sv.Scrolled += async(ScrollView arg1, Rectangle arg2) => {
if (arg2.Y > sv.Bounds.Height && !_displayAlert)
{
_displayAlert = true;
await DisplayAlert("Scroll event", "User scrolled pass bounds", "Ok", "cancel");
}
};
buttonToScroll.Clicked += (object sender, EventArgs e) => {
sv.Position = new Point(sv.Position.X, sv.ContentSize.Height - _imageHeight);
};
Content = sv;
}
