Android-application context (Application context)

Application Context (application context)

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Application Context refers to the process in which the application environment and all its components run.
The Context has its own user ID and Linux processes, and specialized Dalvik virtual machines that store application files for dedicated file systems. The Context is uniquely identified based on the package name of the application,The context is created when the first component of the application is started, and the context is deleted when Activity Manager terminates all components of the application. the context.getapplicationcontext () and Activity.getapplication () methods can obtain a reference to the Context.
activities and services are subclasses of the context class, inheriting (extends) all methods.

Android-application context (Application context)