How to hide the keyboard when scrolling in Xamarin.Forms ListView?
The soft keyboard can be hidden by scrolling the Xamarin.Forms SfListView.
C#
Define an interface to hide the soft keyboard.
public interface IKeyboardHelper
{
void HideKeyboard();
}
C#
In a native Android project, create a class to hide the keyboard and register the dependency for the same. Hide the soft keyboard using HideSoftInputFromWindow method , and clear the focus using ClearFocus method.
[assembly: Dependency(typeof(KeyboardHelper))]
namespace ListViewXamarin.Droid
{
[Preserve(AllMembers = true)]
public class KeyboardHelper : IKeyboardHelper
{
static Context _context;
public KeyboardHelper()
{
}
public static void Init(Context context)
{
_context = context;
}
public void HideKeyboard()
{
var context = Android.App.Application.Context;
var inputMethodManager = context.GetSystemService(Context.InputMethodService) as InputMethodManager;
if (inputMethodManager != null && context is Activity)
{
var activity = context as Activity;
var token = activity.CurrentFocus?.WindowToken;
inputMethodManager.HideSoftInputFromWindow(token, HideSoftInputFlags.None);
activity.Window.DecorView.ClearFocus();
}
}
}
}
C#
In native iOS project, register the Dependency for KeyBoardHelper class. Hide the soft keyboard using the EndEditing method.
[assembly: Dependency(typeof(KeyboardHelper))]
namespace ListViewXamarin.iOS
{
[Preserve(AllMembers = true)]
public class KeyboardHelper : IKeyboardHelper
{
public KeyboardHelper()
{
}
public void HideKeyboard()
{
UIApplication.SharedApplication.KeyWindow.EndEditing(true);
}
}
}
C#
Trigger the ScrollStateChanged method to hide the keyboard. In the event call back, call the HideKeyBoard method using DependencyService when the ScrollState is not Idle.
public class Behavior : Behavior<ContentPage>
{
SfListView ListView;
protected override void OnAttachedTo(ContentPage bindable)
{
ListView = bindable.FindByName<SfListView>("listView");
ListView.ScrollStateChanged += ListView_ScrollStateChanged;
base.OnAttachedTo(bindable);
}
private void ListView_ScrollStateChanged(object sender, ScrollStateChangedEventArgs e)
{
if (e.ScrollState != ScrollState.Idle)
{
DependencyService.Get<IKeyboardHelper>().HideKeyboard();
}
}
}
Conclusion
I hope you enjoyed learning about how to hide the keyboard when scrolling in Xamarin.Forms ListView.
You can refer to our Xamarin.Forms ListView feature tour page to know about its other groundbreaking feature representations. You can also explore our Xamarin.Forms ListView documentation to understand how to create and manipulate data.
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