Odd Xamarin Forms Listview contextaction Android behavior

Question

I have created a simple ListView with a context menu:

    <ListView x:Name="listview" SelectionMode="Single">  
        <ListView.ItemTemplate>  
            <DataTemplate>  
                <ViewCell>  
                    <StackLayout Orientation="Horizontal" >  
                        <Label Text="{Binding item1}"></Label>  
                        <Label Text="{Binding item2}"></Label>  
                        <Label Text="{Binding item3}"></Label>  
                    </StackLayout>  
                    <ViewCell.ContextActions>  
                        <MenuItem Text="Add" ></MenuItem>  
                        <MenuItem Text="Delete"></MenuItem>  
                        <MenuItem Text="Edit"></MenuItem>  
                    </ViewCell.ContextActions>  
                </ViewCell>  
            </DataTemplate>  
        </ListView.ItemTemplate>  
    </ListView>  

Development environment is Visual Studio 16.9.1, Xamarin Forms Nuget package is at 5.0.0.2012 which I believe are the latest. Pictures below are of the Android Pixel2 Emulator.

Selecting an item works ok:

A long press on the selected rows activates the menu but disables the selection background. Which row is the operation on?:

If I tap around randomly on other rows they may select or may deselect:

When I click the back button to exit the context menu the selections change again (notice the selections are different than the above image):

If I tap on each item they will deselect and return to a single selection.

I have SelectionMode="Single" and still seem to get multiple selections. What am I doing wrong?

Answer 1

Hello,

Welcome to our Microsoft Q&A platform!

In android, you can simply add following tag(s) to styles.xml (location: Android project > Resources > values > styles.xml)

   <item name="android:colorLongPressedHighlight">@color/ListViewHighlighted</item>  

And add color in file colors.xml:

<color name="ListViewHighlighted">#FFFF00</color>  

The result is:

Best Regards,

Jessie Zhang

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