How is the usage of framework in Android?

In Android, the framework refers to a set of APIs and libraries used to build the basic functions of applications and the operating system. Android’s framework provides various classes and interfaces that developers can use to create applications.

Here are the primary uses of the framework in Android.

1. Application development: Developers can utilize the Android framework to design user interfaces, manage the lifecycle of applications, handle user input, and access various device functions and services, such as cameras, sensors, and location information.
2. 系统服务访问：开发者可以使用Android framework提供的系统服务来访问设备的各种功能和服务，如网络连接、媒体播放、存储访问等。
3. Data storage and access: The Android framework offers a variety of APIs and classes to handle data storage and access. Developers can utilize these APIs and classes to retrieve and store data in databases, file systems, shared preferences, and more.
4. Communication and networking: The Android framework offers a variety of APIs and classes to handle communication and networking functions, allowing developers to use these APIs and classes to make network requests, send and receive data, and handle push notifications.
5. Multimedia and graphics processing: The Android framework offers a variety of APIs and classes for handling multimedia and graphic functions, allowing developers to use these APIs and classes to play audio and video, display images, and process graphic effects.

In conclusion, the Android framework offers a wide range of features and services that developers can use to build various types of applications and interact with the device’s hardware and system.