What are the characteristics of activities in Android?
Some features of Activity in Android include:
- Lifecycle management: Activity contains a variety of lifecycle methods that allow corresponding operations to be carried out at different stages, such as creation, starting, resuming, pausing, stopping, and destroying.
- The presentation of the user interface: An Activity is the visual display unit of an Android application, which can be defined and controlled through layout files or code.
- Interactivity: Activities can receive and handle user input events, such as clicking buttons, swiping screens, and so on.
- Task and navigation management: Activity serves as a bridge between different tasks and navigation pages within an application, allowing for switching and navigation between pages by launching other Activities.
- Resource management: Activity can access various resources of the application, such as images, strings, colors, etc., through resource files.
- Lifecycle callback methods: Activity offers a series of lifecycle callback methods that allow you to perform various operations at different stages of the lifecycle, such as onCreate(), onStart(), onResume(), and so on.
- Switching animations: Smooth page transition effects can be achieved between activities, improving user experience.
- Data transfer: Data can be shared and exchanged between activities through Intents.
- Multiple window support: Android 7.0 and higher versions support the function of multiple windows, allowing you to display multiple activities at the same time and interact between them.
- Configuration changes handling: When the device configuration changes, such as screen rotation or system language switching, the Activity can automatically be recreated or restore its state to adapt to the new configuration.
