Using Icon Fonts in MAUI .NET 9 [GamesCatalog] - Part 7

Emanuel Martins
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GamesCatalogmain.zip|Icons.rar

Previous part: Passing an Object from a List to Another Page in MAUI MVVM .NET 9 [GamesCatalog] - Part 6

Step 1. Let's add icons to the system. For this, we will use the free version of FontAwesome.

https://docs.fontawesome.com/v5/desktop/setup/get-started

FontAwesome

Step 1.1. After downloading the zip file, extract the desired font file and copy it into the project’s fonts folder. In this case, we will use Free-Solid-900.otf.

Desired font file

With this, the font is now defined as a MauiFont.

MauiFont

Step 2. Add the font to the system in MauiProgram.

MauiProgram

Code

fonts.AddFont("Free-Solid-900.otf", "FontAwesomeIcons");

Step 3. Generate a file with the Unicode or use them individually. Here, we will work with a generated font class (class attached).

Unicode

Step 3.1. To generate the class with the Unicode.

https://andreinitescu.github.io/IconFont2Code

Step 4. In AddGame, let's add the path to the file containing the icon Unicode.

AddGame

Step 4.1. Code.

xmlns:Icons="clr-namespace:GamesCatalog.Resources.Fonts"

Step 5. Let's add more colors to the Colors.xaml file.

<Color x:Key="PrimaryElementColor">#4DACFF</Color>  
<Color x:Key="SecondaryElementColor">#2B659B</Color>  
<Color x:Key="SecondaryLabelColor">#98BDD3</Color>  
<Color x:Key="Success">#2B9B74</Color>

Step 6. In AddGame.xaml, we will add one more column to the Grid and, between the image and the summary, we will insert a HorizontalStackLayout that will contain buttons with the icons.

HorizontalStackLayout

Step 6.1. Code.

<VerticalStackLayout Grid.Row="2" Grid.Column="1">
    <HorizontalStackLayout Padding="0,5,0,5" HorizontalOptions="Center">
    </HorizontalStackLayout>
</VerticalStackLayout>

Step 6.2. Inside the HorizontalStackLayout, we will add a button with the icon representing the "Want to play" status. It will have a border with the default color we defined and the clock icon from the icon font we are using.

<Button
    Margin="0,0,10,0"
    BackgroundColor="{StaticResource SecondaryElementColor}"
    ContentLayout="Top,0"
    HorizontalOptions="Start"
    Text="Want"
    WidthRequest="70">
    <Button.ImageSource>
        <FontImageSource
            FontFamily="FontAwesomeIcons"
            Glyph="{x:Static Icons:IconFont.Clock}"
            Size="30"
            Color="White" />
    </Button.ImageSource>
</Button>

Step 6.3. After this button, we will add two more: one for the "Playing" status and another for "Played".

<Button
    BackgroundColor="{StaticResource SecondaryElementColor}"
    ContentLayout="Top,0"
    HorizontalOptions="Start"
    Text="Playing"
    WidthRequest="70">
    <Button.ImageSource>
        <FontImageSource
            FontFamily="FontAwesomeIcons"
            Glyph="{x:Static Icons:IconFont.Gamepad}"
            Size="30"
            Color="White" />
    </Button.ImageSource>
</Button>

<Button
    Margin="10,0,0,0"
    BackgroundColor="{StaticResource SecondaryElementColor}"
    ContentLayout="Top,0"
    HorizontalOptions="Start"
    Text="Played"
    WidthRequest="70">
    <Button.ImageSource>
        <FontImageSource
            FontFamily="FontAwesomeIcons"
            Glyph="{x:Static Icons:IconFont.CircleCheck}"
            Size="30"
            Color="White" />
    </Button.ImageSource>
</Button>

Step 6.4. After the HorizontalStackLayout group, inside the VerticalStackLayout, we will add a button that will serve as the confirmation button for the status and rating.

<Button
    Margin="0,10,0,10"
    BackgroundColor="{StaticResource Success}"
    FontAttributes="Bold"
    FontSize="20"
    HorizontalOptions="Center"
    Text="Confirm">
    <Button.ImageSource>
        <FontImageSource
            FontFamily="FontAwesomeIcons"
            Glyph="{x:Static Icons:IconFont.Check}"
            Size="30"
            Color="White" />
    </Button.ImageSource>
</Button>

Step 7. Now we have our buttons with their respective icons.

Buttons

Step 8. Let's add variables to handle the visual behavior of these buttons in AddGameVM.cs.

private bool confirmIsVisible = false;

static readonly Color BgButtonStatusSelectedColor = Color.FromArgb("#2b9b74");
static readonly Color BgButtonStatusNormalColor = Color.FromArgb("#2B659B");

private enum GameStatus
{
    Want,
    Playing,
    Played
}

private GameStatus? GameSelectedStatus = null;

private Color wantBgColor = BgButtonStatusNormalColor;
private Color playingBgColor = BgButtonStatusNormalColor;
private Color playedBgColor = BgButtonStatusNormalColor;

public Color WantBgColor
{
    get => wantBgColor;
    set => SetProperty(ref wantBgColor, value);
}

public Color PlayingBgColor
{
    get => playingBgColor;
    set => SetProperty(ref playingBgColor, value);
}

public Color PlayedBgColor
{
    get => playedBgColor;
    set => SetProperty(ref playedBgColor, value);
}

public bool ConfirmIsVisible
{
    get => confirmIsVisible;
    set => SetProperty(ref confirmIsVisible, value);
}

We will have a variable to control the visibility of the confirmation button, which will only be visible when a status is selected. And we will have variables to control the background color of the status buttons, to show which one is currently selected.

Step 9. Let's create the commands to define the visibility of the confirmation button and the colors of the status buttons.

[RelayCommand]
private Task Want()
{
    GameSelectedStatus = GameStatus.Want;
    WantBgColor = BgButtonStatusSelectedColor;
    PlayingBgColor = BgButtonStatusNormalColor;
    PlayedBgColor = BgButtonStatusNormalColor;
    ConfirmIsVisible = true;

    return Task.CompletedTask;
}

[RelayCommand]
private Task Playing()
{
    GameSelectedStatus = GameStatus.Playing;
    WantBgColor = BgButtonStatusNormalColor;
    PlayingBgColor = BgButtonStatusSelectedColor;
    PlayedBgColor = BgButtonStatusNormalColor;
    ConfirmIsVisible = true;

    return Task.CompletedTask;
}

[RelayCommand]
private Task Played()
{
    GameSelectedStatus = GameStatus.Played;
    WantBgColor = BgButtonStatusNormalColor;
    PlayingBgColor = BgButtonStatusNormalColor;
    PlayedBgColor = BgButtonStatusSelectedColor;
    ConfirmIsVisible = false;

    return Task.CompletedTask;
}

For the "Played" status, the confirmation button will only be enabled after defining the rating.

Step 10. Define the bindings for the buttons on the AddGame.xaml page.

XML Page

Step 10.1. Code.

<VerticalStackLayout Grid.Row="2" Grid.Column="1">
    <HorizontalStackLayout Padding="0,5,0,5" HorizontalOptions="Center">
        <Button
            Margin="0,0,10,0"
            BackgroundColor="{Binding WantBgColor}"
            Command="{Binding WantCommand}"
            ContentLayout="Top,0"
            HorizontalOptions="Start"
            Text="Want"
            WidthRequest="70">
            <Button.ImageSource>
                <FontImageSource
                    FontFamily="FontAwesomeIcons"
                    Glyph="{x:Static Icons:IconFont.Clock}"
                    Size="30"
                    Color="White" />
            </Button.ImageSource>
        </Button>

        <Button
            BackgroundColor="{Binding PlayingBgColor}"
            Command="{Binding PlayingCommand}"
            ContentLayout="Top,0"
            HorizontalOptions="Start"
            Text="Playing"
            WidthRequest="70">
            <Button.ImageSource>
                <FontImageSource
                    FontFamily="FontAwesomeIcons"
                    Glyph="{x:Static Icons:IconFont.Gamepad}"
                    Size="30"
                    Color="White" />
            </Button.ImageSource>
        </Button>

        <Button
            Margin="10,0,0,0"
            BackgroundColor="{Binding PlayedBgColor}"
            Command="{Binding PlayedCommand}"
            ContentLayout="Top,0"
            HorizontalOptions="Start"
            Text="Played"
            WidthRequest="70">
            <Button.ImageSource>
                <FontImageSource
                    FontFamily="FontAwesomeIcons"
                    Glyph="{x:Static Icons:IconFont.CircleCheck}"
                    Size="30"
                    Color="White" />
            </Button.ImageSource>
        </Button>
    </HorizontalStackLayout>

    <Button
        Margin="0,10,0,10"
        BackgroundColor="{StaticResource Success}"
        FontAttributes="Bold"
        FontSize="20"
        HorizontalOptions="Center"
        IsVisible="{Binding ConfirmIsVisible}"
        Text="Confirm">
        <Button.ImageSource>
            <FontImageSource
                FontFamily="FontAwesomeIcons"
                Glyph="{x:Static Icons:IconFont.Check}"
                Size="30"
                Color="White" />
        </Button.ImageSource>
    </Button>
</VerticalStackLayout>

Step 11. Now we have our status buttons with their behaviors defined.

Status buttons