Xamarin Forms: scroll position in scrollview

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Is there no possibility to read and set the position of the scrollview? For example, I would like to start the app with the scroll position at the bottom, not at the top.

For Android, I have found a solution:

I write a custom renderer and in the OnDraw override Method, I call FullScroll(FocusSearchDirection.Down) the first time when the method is called.

What it makes easy, the Android ScrollViewRenderer is subtype of Android.Widget.ScrollView.

At the moment, I don't need an implementation for iOS, so I have no solution for iOS.

ScrollView.ScrollToAsync Method (Xamarin.Forms), Xamarin Forms - Recognize Scroll Position First Screenshot: This one is without the entry field and when the user scrolls down. Second  Returns a task that scrolls the scroll view to a position asynchronously. ScrollToAsync(Element, ScrollToPosition, Boolean) Returns a task that scrolls the scroll view to an element asynchronously.

You can get the X and Y position of a ScrollView from the ScrollX and ScrollY properties of the ScrollView object. Then you can set the position with the ScrollView method ScrollToAsync.

var x = scrollView.ScrollX;
var y = scrollView.ScrollY;

...

bool animate = false;
scrollView.ScrollToAsync(x, y, animate);

Xamarin.Forms ScrollView, Is there no possibility to read and set the position of the scrollview? For example, I would like to start the app with the scroll position at the bottom, not at the top. You can get the X and Y position of a ScrollView from the ScrollX and ScrollY properties of the ScrollView object. Then you can set the position with the ScrollView method ScrollToAsync. var x = scrollView.ScrollX; var y = scrollView.ScrollY; bool animate = false; scrollView.ScrollToAsync (x, y, animate); share.

I've a better approach to this!

You can add this to your onAppearing() method:

protected override void OnAppearing()
    {
        base.OnAppearing();

        /*Other stuff*/

        viewModel.Messages.CollectionChanged += (sender, e) =>
        {
            var target = viewModel.Messages[viewModel.Messages.Count - 1];                

            ItemsListView.ScrollTo(target, ScrollToPosition.End, false);
        };            
    }

This means that if your collection change, you get the target which is the last item (the one in the bottom) the you use scrollTo target, position end, with animation false.

when you get to the page it will open in the bottom, you don't see the scrolling because animation is false!

Xamarin Forms, Xamarin forms – keep visual element in view linked to content scroll view Now if you just put the whole page in a ScrollView, the user will loose the So how do we position this TitleText to the bottom of the bear image? Scrolling in Xamarin ListView (SfListView) Programmatic scrolling Scrolling to row index. The SfListView allows programmatically scrolling based on the index by using the ScrollToRowIndex method for both linear and grid layouts. It also enables and disables the scrolling animation when changing the view. By default, the scrolling will be animated.

Xamarin Forms: scroll position in scrollview - xamarin - iOS, For vertical scrolling, consider NestedScrollView instead of scroll view which Called from layout when this view should assign a size and position to each of its​  ScrollView contains layouts and enables them to scroll offscreen. ScrollView is also used to allow views to automatically move to the visible portion of the screen when the keyboard is showing. Note: ScrollViews should not be nested.

Xamarin forms – keep visual element in view linked to content scroll , Learn about Scrolling support in Syncfusion Xamarin ListView (SfListView) reached on scrolling; Maintain the scroll position while updating ItemsSource at runtime; See Also scroll to the appropriate row index, or else view does not scrolled in Android. Due to some restrictions in native ScrollView renderer in Xamarin. Hi, I am trying to make a grid with one static bar on the top and under it I want the scrollview fill the rest of the page. When I scroll I want the content go under the top bar. <ContentPage.Content> <Grid> <Grid.RowDefinitions> <RowDef

ScrollView, There's a request from a customer to have a scroll down prompt when the content is too tall to be displayed in a single screen height. C# (CSharp) Xamarin.Forms ScrollView.ScrollToAsync - 3 examples found. These are the top rated real world C# (CSharp) examples of Xamarin.Forms.ScrollView.ScrollToAsync extracted from open source projects. You can rate examples to help us improve the quality of examples.

Comments
  • Nothing. But i can't find any properties or methods which look like they do something like this.
  • For Android, I have found a solution: I write a custom renderer and in the OnDraw override Method, I call FullScroll(FocusSearchDirection.Down) the first time when the method is called.