Challenge your understanding of React Native navigation fundamentals, including stack, tab, and drawer navigators, with practical questions covering setup, configuration, and common scenarios. Strengthen your skills in building seamless mobile app navigation using essential navigation components and best practices.
What is the primary purpose of a stack navigator in a React Native app?
Explanation: A stack navigator manages screens in a way similar to a stack data structure, pushing new screens onto the stack and allowing users to go back to previous screens. Arranging screens in a grid is unrelated to navigation and more of a layout concept. The bottom row of icons relates to tab navigation, not stacks. A menu sliding from the top is not the function of a stack navigator.
In a tab navigator, how are different sections of an application typically presented to the user?
Explanation: Tab navigators provide visible tabs, either at the screen's top or bottom, letting users switch between main sections easily. Hidden menus accessed by gestures are a drawer navigation pattern. Stacked screens describe stack navigation, not tabs. Pop-ups are not related to tabbed navigation structures.
What is the typical user interaction for opening a drawer navigator menu in a React Native mobile app?
Explanation: Drawer navigation is commonly opened by a swipe gesture from the edge or by tapping a hamburger menu icon. Long pressing, pinching, or double-tapping are not standard actions associated with drawer navigation and would likely confuse users.
Which scenario best demonstrates combining stack and tab navigators in an app flow?
Explanation: Combining navigators often means nesting a stack navigator inside each tab, so each section has an independent navigation stack. Placing all screens on one bar defeats the purpose of structured navigation. A drawer just for notifications is not related to combining navigators, nor is using tabs only on a splash screen.
When navigating between screens in a stack navigator, how can you pass simple data from one screen to another?
Explanation: Parameters are typically passed in the navigation command, allowing the receiving screen to access them easily. Editing the main file or renaming components does not transmit data. The style prop only affects appearance and can't pass navigation data.
Which setting determines the initial screen shown when a tab navigator is loaded?
Explanation: The initialRouteName property specifies which tab is active when the navigator mounts. There is no defaultTabIndex in this context. The activeColor is a style attribute. useDrawerHeader is not relevant to tab navigation setup.
By default, from which side of the screen does a drawer navigator typically appear in a left-to-right language app?
Explanation: In left-to-right language environments, the drawer usually slides out from the left side for easy thumb access and common usability conventions. Right-side drawers are less common and used in right-to-left settings. Top and bottom drawers are not part of standard drawer navigation patterns.
If a user navigates to a new tab using the tab navigator, what typically happens to the stack or navigation history of the previous tab?
Explanation: Each tab commonly maintains its own navigation history, helping users resume where they left off. Clearing history would disrupt user experience. Disabling or merging tabs does not align with navigation system behavior and would confuse users.
Which approach is most appropriate for customizing the header title for each screen in a stack navigator?
Explanation: Setting a headerTitle directly in each screen's configuration customizes the displayed title. Background color changes appearance only, the manifest file does not control headers, and renaming files is unrelated to header presentation.
What is a common reason to hide the tab bar on a particular screen, such as a full-screen image viewer?
Explanation: Hiding the tab bar is useful for focused experiences, like viewing images or videos, so users are not distracted. It does not affect app startup speed, nor does it relate to preventing app closure or changing font style.