Developers building for HarmonyOS Next often face a frustrating issue: the app's tab bar vanishes when users navigate deeper into a screen. This happens because the standard router jumps to a new page, leaving the original Tabs component behind. The user experience suffers as the primary navigation tool disappears.

The solution involves pairing the Tabs component with HarmonyOS Next's Navigation component. This combination keeps the tab bar fixed at the bottom while allowing each tab to manage its own navigation stack internally. It's a shift from page-level routing to component-level routing for a smoother flow.

This approach requires defining a main Tabs structure, then placing a Navigation container within a specific tab. The NavPathStack manages the history for that tab's content. Users can drill down into details within a tab and still see the main tab bar, enabling seamless switching between sections without losing context.