How can I set a defaultWindowPlacement

To set a defaultWindowPlacement in SwiftUI, you can use the default window placement modifier. This allows you to programmatically set the initial position and size of a window. Depending on the platform, windows can be positioned and sized in various ways, such as relative to other windows or the screen. For example, on macOS, you can calculate a position manually by accessing the context, which contains information about the default display, and then using the visible rect to determine a safe placement for your content.

Here's a brief overview of how you might implement this:

1. Access the Context: Use the context provided by the default window placement modifier to get information about the display, such as the visible rect.

2. Calculate Position and Size: Use methods like sizeThatFits to determine the desired size of the window content. Then, calculate a position based on the display bounds and size variables.

3. Return Window Placement: Return a window placement with the calculated position and size.

For more detailed guidance, you can refer to the session Work with windows in SwiftUI (06:25) where these concepts are discussed.