How important is it to animate when changing screen orientation for a smooth transition of the view?

Animation when changing screen orientation is important to ensure a smooth and pleasant user experience. Without animation, the transition can appear abrupt and jerky, which reduces the perceived quality of the application.

A smooth transition helps:

• Maintain context for the user by showing that the interface adapts rather than simply reloading.
• Avoid visual discomfort and sudden changes.

In iOS, animation methods in UIViewController are often used for this purpose when handling orientation change events, for example, in viewWillTransition(to:with:), where you can add animations for changing the layout and sizes of interface elements.