9.4 Android Libraries
In addition to a set of standard Java development libraries (providing support for such general purpose tasks as string handling, networking and file manipulation), the Android development environment also includes the Android Libraries. These are a set of Java-based libraries that are specific to Android development. Examples of libraries in this category include the application framework libraries in addition to those that facilitate user interface building, graphics drawing and database access.
A summary of some key core Android libraries available to the Android developer is as follows:
•android.app – Provides access to the application model and is the cornerstone of all Android applications.
•android.content – Facilitates content access, publishing and messaging between applications and application components.
•android.database – Used to access data published by content providers and includes SQLite database...