Forums | NoesisGUI

Im using NoesisGUI inside Unreal Engine 5.6 and I'm having trouble with basic UI interaction on Android

What Works:
- Running on windows (either in editor or stand alone) builds, everything works fine
- Buttons respons to my click and show visual press basketball stars feedback or actions set on them
- No custom code is used

On Android Phone experience:
- UI Renders correctly in Phone/Android
- I put a timer action just to make sure overall that works and that worked
- No touch interaction works, feels like a disabled page
- I set breakpoins and I can see in NoesisInstance.cpp HandleMouseButtonDownEvent is called, but it doesnt do `NoesisInstance->NativeOnMouseButtonDown(MyGeometry, InPointerEvent)` because it is not a 3d widget
- If using debugger, I jump code to `NoesisInstance->NativeOnMouseButtonDown(MyGeometry, InPointerEvent)` and run it, my button key press event then works!

My sample xaml file

Code: Select all

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:sys="clr-namespace:System;assembly=mscorlib" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" xmlns:b="http://schemas.microsoft.com/xaml/behaviors"
        mc:Ignorable="d" d:DataContext="MyStructure000 Data 02" Focusable="True" IsManipulationEnabled="True" AllowDrop="True" FocusManager.IsFocusScope="True" IsFocusEngagementEnabled="True" IsFocusEngaged="True"  d:DesignWidth="720" d:DesignHeight="1280">

    <Grid>
        <VisualStateManager.VisualStateGroups>
            <VisualStateGroup x:Name="VisualStateGroup0">
                <VisualState x:Name="VisualState0">
                    <Storyboard>
                        <StringAnimationUsingKeyFrames Storyboard.TargetName="TextBlock0" Storyboard.TargetProperty="(TextBlock.Text)">
                            <DiscreteStringKeyFrame KeyTime="00:00:00" Value="Default"/>
                            <DiscreteStringKeyFrame KeyTime="00:00:01" Value="TimerChanged"/>
                        </StringAnimationUsingKeyFrames>
                    </Storyboard>
                </VisualState>
            </VisualStateGroup>
        </VisualStateManager.VisualStateGroups>
        <b:Interaction.Triggers>
            <b:TimerTrigger TotalTicks="1000">
                <b:GoToStateAction StateName="VisualState0"/>
            </b:TimerTrigger>
        </b:Interaction.Triggers>
       
        <Grid.RowDefinitions>
            <RowDefinition Height="48*"/>
            <RowDefinition Height="32*"/>
        </Grid.RowDefinitions>
        <!-- Hidden element to track index -->
        
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="1*"/>
            <ColumnDefinition Width="2*"/>
            <ColumnDefinition Width="1*"/>
        </Grid.ColumnDefinitions>
        
        
        
        <TextBlock x:Name="TextBlock0" Text="Default" TextWrapping="Wrap" Foreground="#FF3078C0" Margin="0" Grid.Row="1" Grid.Column="1" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="43"/>
        <Button x:Name="Button1" Grid.Column="1" Width="200" Height="80" Content="Hello click on me" Margin="0">
            <b:Interaction.Triggers>
                <b:EventTrigger EventName="Click">
                    <b:ChangePropertyAction PropertyName="Content" Value="Clicked"/>
                </b:EventTrigger>
                <b:EventTrigger EventName="Tapped">
                    <b:ChangePropertyAction PropertyName="Content" Value="Tapped"/>
                </b:EventTrigger>
                <b:EventTrigger EventName="MouseDown">
                    <b:ChangePropertyAction PropertyName="Content" Value="MouseDown"/>
                </b:EventTrigger>
                <b:EventTrigger EventName="PreviewMouseDown">
                    <b:ChangePropertyAction PropertyName="Content" Value="PreviousMouseDown"/>
                </b:EventTrigger>
                <b:EventTrigger EventName="TouchDown">
                    <b:ChangePropertyAction PropertyName="Content" Value="TouchDown"/>
                </b:EventTrigger>
            </b:Interaction.Triggers>
            <Button.Triggers>
                <EventTrigger RoutedEvent="Button.Click">
                </EventTrigger>
            </Button.Triggers>
        </Button>
    </Grid>
</Page>

and I just clicked on xaml asset and used "Add to viewport" logic to add it to blank level.