How to implement Lock Screen widget?

To implement a Lock Screen widget, you can use the new controls feature introduced in iOS 18. Controls are a type of widget that can be placed in system spaces like the Lock Screen, Control Center, and the Action Button. They are created using WidgetKit and focus on providing quick access to actions from your app.

Here's a basic outline of how to create a Lock Screen widget:

Define the Control: Use WidgetKit to define your control, specifying its appearance and the action it performs. You can include a symbol, title, tint color, and additional content.
Configure the Control: Make your control configurable to suit different user needs. This involves setting up parameters that users can adjust.
Integrate with System Spaces: Once your control is defined, it can be added to supported system spaces like the Lock Screen. Users can also assign it to the action button on their devices.

For more detailed guidance, you can refer to the session Extend your app’s controls across the system (03:04) which covers building a control and integrating it with system spaces.