What is the usage of Fragments in Android development?
In Android development, Fragments are reusable components used to build flexible user interfaces. They can be embedded in Activities with each Fragment having its own layout and behavior, similar to an independent sub-Activity.
The main uses of Fragment include the following aspects:
- Interface reuse: By encapsulating different parts of the interface into Fragments, they can be reused in different Activities, improving code reusability and maintainability.
- Interface switching: By replacing different fragments, it is possible to switch between different interfaces within the same activity, creating a more flexible user interface.
- Horizontal screen and tablet adaptation: By displaying different fragments on different screen orientations or screen sizes, the user interface can be better adapted to horizontal screen and tablet devices.
- Fragment has its own mechanism for managing its lifecycle, which can be controlled by overriding relevant methods to handle initialization, starting, pausing, resuming, stopping, and destroying the Fragment.
- Communication with Activity: Fragments can communicate with the hosting Activity to achieve functions such as sharing data and interactive operations, enhancing the degree of coupling between Fragments and Activities.
In conclusion, Fragment is a crucial component in Android development that offers more flexibility in designing user interfaces, reusing code, and also provides developers with greater control and flexibility.
