MAUI APIs Reference

Label Class

Displays a string of text.

Namespace: Microsoft.Maui.Controls

Inheritance: View > Element > BindableObject

Common Properties:

• Text: The text content to display.
• TextColor: The color of the text.
• FontSize: The size of the font.
• FontAttributes: Specifies font style (e.g., Bold, Italic).
• HorizontalTextAlignment: Horizontal alignment of the text.
• VerticalTextAlignment: Vertical alignment of the text.

Example:

var myLabel = new Label
                {
                    Text = "Hello, MAUI!",
                    TextColor = Colors.Blue,
                    FontSize = 24,
                    HorizontalTextAlignment = TextAlignment.Center
                };

Button Class

A control that can contain text or an image and that performs an action when clicked by the user.

Namespace: Microsoft.Maui.Controls

Common Properties:

• Text: The text displayed on the button.
• TextColor: The color of the button's text.
• BackgroundColor: The background color of the button.
• CornerRadius: The radius of the button's corners.

Events:

• Clicked: Occurs when the button is clicked.

Example:

var myButton = new Button
                {
                    Text = "Click Me",
                    BackgroundColor = Colors.Green,
                    CornerRadius = 5
                };
                myButton.Clicked += (sender, e) => {
                    // Handle button click
                };

Entry Class

A control that accepts single-line text input.

Namespace: Microsoft.Maui.Controls

Common Properties:

• Text: The current text in the entry.
• Placeholder: Text displayed when the entry is empty.
• Keyboard: Specifies the type of keyboard to display.
• IsPassword: When true, masks the input.

Events:

• TextChanged: Occurs when the text in the entry changes.

Example:

var nameEntry = new Entry
                {
                    Placeholder = "Enter your name",
                    Keyboard = Keyboard.Text
                };

StackLayout Class

Arranges child elements in a vertical or horizontal stack.

Namespace: Microsoft.Maui.Controls

Common Properties:

• Orientation: Specifies whether to stack horizontally or vertically.
• Spacing: The amount of space between elements.

Example:

var verticalStack = new StackLayout
                {
                    Orientation = StackOrientation.Vertical,
                    Spacing = 10,
                    Children = { new Label { Text = "Item 1" }, new Button { Text = "Item 2" } }
                };

Grid Class

Arranges child elements in a grid, defined by rows and columns.

Namespace: Microsoft.Maui.Controls

Common Properties:

• RowDefinitions: Defines the rows in the grid.
• ColumnDefinitions: Defines the columns in the grid.

To position an element, use Grid.Row and Grid.Column attached properties.

Example:

var myGrid = new Grid
                {
                    RowDefinitions = { new RowDefinition(), new RowDefinition() },
                    ColumnDefinitions = { new ColumnDefinition(), new ColumnDefinition() }
                };
                Grid.SetRow(myLabel, 0);
                Grid.SetColumn(myLabel, 0);
                myGrid.Children.Add(myLabel);

Geolocation Class

Provides APIs for accessing the device's location.

Namespace: Microsoft.Maui.Essentials

Methods:

• GetLastKnownLocationAsync(): Gets the last known location.
• GetLocationAsync(GeolocationRequest request): Gets the current location with specified accuracy and timeout.

Example:

var location = await Geolocation.GetLastKnownLocationAsync();
                if (location != null)
                {
                    Console.WriteLine($"Latitude: {location.Latitude}, Longitude: {location.Longitude}");
                }

DeviceInfo Class

Provides information about the device the app is running on.

Namespace: Microsoft.Maui.Essentials

Properties:

• Model: The device model (e.g., "iPhone 13 Pro").
• Manufacturer: The device manufacturer (e.g., "Apple").
• Platform: The operating system platform (e.g., "iOS", "Android").
• Idiom: The device idiom (e.g., Phone, Tablet, Desktop).
• VersionString: The operating system version.

Example:

Console.WriteLine($"Device Model: {DeviceInfo.Model}");
                Console.WriteLine($"Platform: {DeviceInfo.Platform}");