XCT Long press doesn't work in the Listview or SwipeView control.

Question

Hi everyone !

I am using a detailed SwipeView control in Listview. I am trying to integrate the long press control on each card in my list. For this, I want to use xamarin community toolkit long press. Xct long press works in areas outside of listview on my screen. For example, label, image etc.

But xct long press does not work on any controls inside my listview. How can I solve this problem?

Thanks in advance

Answer 1

Hello,

Welcome to our Microsoft Q&A platform!

You can use Custom Renderers to achieve this.

In android:

 [assembly: ExportRenderer(typeof(CustomListView), typeof(CustomListViewDroid))]  
    namespace FormsListViewSample.Droid  
    {  
        public class CustomListViewDroid: ListViewRenderer  
        {  
      
            public CustomListViewDroid(Android.Content.Context context):base(context) {   
              
              
            }  
            protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.ListView> e)  
            {  
                base.OnElementChanged(e);  
                if (e.OldElement == null)  
                {  
                    var view = (CustomListView)Element;  
      
                    this.Control.ItemLongClick += (s, args) =>  
                    {  
                        this.Control.SetItemChecked(args.Position, true);  
                        Java.Lang.Object item = this.Control.GetItemAtPosition(args.Position);  
                        view.OnLongClicked(item.GetType().GetProperty("Instance").GetValue(item));  
                    };  
                }  
      
            }  
        }  
    }  

In forms:

 public class CustomListView:ListView  
{  
    public event EventHandler LongClicked;  

    public void OnLongClicked()  
    {  
        if (LongClicked != null)  
            LongClicked(this, new ItemTappedEventArgs(this, this.SelectedItem));  
    }  

    public void OnLongClicked(object v)  
    {  
        Log.Warning("test", "OnLongClicked is triggered");  
    }  
}  

Refer: https://forums.xamarin.com/discussion/1013/catching-long-presses-on-a-list-view

And there is a similar thead about this, you can check it:
https://stackoverflow.com/questions/62895490/long-press-event-on-listview-items-in-xamarin-forms

https://www.c-sharpcorner.com/article/longpress-event-for-image/

Best Regards,

Jessie Zhang

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