What are the differences between the two page loading modes provided by HarmonyOS?

Question

HarmonyOS provides two ways to load pages. One approach involves binding multiple pages to a single UIAbility, allowing for navigation between these pages. The other approach binds one page to one UIAbility, with page loading achieved by switching between UIAbilities. What the are differences between these two approaches, and how should I decide which one to use?

Answer

Differences:

Binding multiple pages to one UIAbility: This approach uses fewer resources and offers faster switching speeds. The transitions between pages are lightweight, making it suitable for scenarios where frequent switching occurs.

Binding one page to one UIAbility: This approach consumes more resources and has slower switching speeds. It is better suited for complex service logic that requires independent lifecycle management.

Recommendations:

1. For modular functions with frequent switching:
   • Choose to bind multiple pages to one UIAbility.
   • This is ideal for scenarios like navigation bar switching or tab page transitions.
2. For independent functions with complex lifecycle management:
   • Choose to bind one page to one UIAbility.
   • This is suitable for independent functional modules and complex service logic.