What is PageView in Flutter?
Why Interviewers Ask This
This tests whether you can apply Flutter knowledge to real-world scenarios. Interviewers are looking for clarity of thought and evidence that you've encountered this in production code.
Answer
PageView is a scrollable widget where each child fills the entire viewport and users swipe horizontally (or vertically) to navigate between them. It is perfect for onboarding screens, image carousels, and tabbed content without a visible tab bar. Control it with a PageController, which lets you programmatically jump to a specific page with controller.animateToPage() or check the current page with controller.page. Add a PageView.builder() for large or infinite page sets.
Pro Tip
Before answering, structure your response: one-line definition → real-world analogy → concrete example from a project. This makes even complex Flutter answers easy to follow.