# FAQ ## Why use single activity architecture? The cost of screen switching and data transfer between activities is high, Single-Activity architecture can reduce the cost and improve the performance, which is suitable for some small and medium-sized projects. However, a single activity is not a silver bullet and may not be suitable for all projects. ## What are the advantages over Jetpack Navigation? There are some advantages as follows: * There is no need to configure `NavGraph` * Lifecycle is more reasonably * API is easier to use ## Is this library stable and will be will it be maintained continuously ? Fragivity is implemented based on navigation, which ensures the stability of basic capabilities; Before there is no better alternative, the project will be maintained continuously. Maybe `Jetpack Compose` will become a good alternative in the future ## Is it supported in Java ? Fragivity will provide Java side compatibility, but kotlin is recommended ## Support for DI ? Fragivity does not affect the use of fragment for any three-party libraries, and DI library such as Koin or hilt can be used normally