Create-a-Chat-Application-using-the-MAUI-ListView

This sample demonstrates how to create a chat application using the MAUI ListView control within a .NET MAUI application.

Sample

<ContentPage.Resources>
    <ResourceDictionary>
        <DataTemplate x:Key="IncomingMessage">
            <Grid Padding="10,5">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="Auto"/>
                    <ColumnDefinition Width="*"/>
                </Grid.ColumnDefinitions>

                <Image WidthRequest="40" HeightRequest="40" HorizontalOptions="Start"
                       VerticalOptions="Start" Margin="5"
                       Source="{Binding ProfilePicture}">
                </Image>

                <StackLayout Grid.Column="1" Orientation="Vertical" Padding="5,0">
                    <Label Text="{Binding Name}" TextColor="Gray" FontSize="12"
                           FontAttributes="Bold" HorizontalOptions="Start"/>
                    <Label Text="{Binding Text}" TextColor="Black" BackgroundColor="LightGray"
                           Padding="10" MaximumWidthRequest="250"
                           HorizontalOptions="StartAndExpand" VerticalOptions="Center"/>
                    <Label Text="{Binding Timestamp, StringFormat='{0:HH:mm}'}"
                           TextColor="Gray" FontSize="10" HorizontalOptions="Start"/>
                </StackLayout>
            </Grid>
        </DataTemplate>

        <DataTemplate x:Key="OutgoingMessage">
            <Grid Padding="10,5">
                <Grid.ColumnDefinitions>
                    <ColumnDefinition Width="*" />
                    <ColumnDefinition Width="Auto" />
                    <ColumnDefinition Width="Auto"/>
                </Grid.ColumnDefinitions>

                <StackLayout Grid.Column="1" Orientation="Vertical" Padding="5,0" 
                             VerticalOptions="CenterAndExpand">
                    <Label Text="{Binding Name}" TextColor="Gray" FontSize="12"
                           FontAttributes="Bold" HorizontalOptions="End" />
                    <Label Text="{Binding Text}" TextColor="White" 
                           BackgroundColor="DodgerBlue" Padding="10" 
                           HorizontalOptions="EndAndExpand" VerticalOptions="Center"
                           MaximumWidthRequest="250" />
                    <Label Text="{Binding Timestamp, StringFormat='{0:HH:mm}'}"
                           TextColor="Gray" FontSize="10" HorizontalOptions="End"/>
                </StackLayout>

                <Image Grid.Column="2" WidthRequest="40" HeightRequest="40" Margin="5"
                       HorizontalOptions="End" VerticalOptions="Start"
                       Source="{Binding ProfilePicture}">
                </Image>
            </Grid>
        </DataTemplate>

        <local:MyDataTemplateSelector x:Key="dataTemplateSelector"
                                      IncomingDataTemplate="{StaticResource IncomingMessage}"
                                      OutgoingDataTemplate="{StaticResource OutgoingMessage}"/>
    </ResourceDictionary>
</ContentPage.Resources>

<listView:SfListView ItemsSource="{Binding Messages}"
                     ItemTemplate="{StaticResource dataTemplateSelector}"
                     AutoFitMode="Height">
</listView:SfListView>

Requirements to run the demo

To run the demo, refer to System Requirements for .NET MAUI

Troubleshooting:

Path too long exception

If you are facing path too long exception when building this example project, close Visual Studio and rename the repository to short and build the project.

License

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