[Android] Data Storage contentproviders

This topic describes how to use content providers.

Content providers is a bridge between data storage and retrieval among all applications. It enables data sharing between applications.

Content providers is a special data storage type that provides a set of standard excuses for data acquisition and operation. The system also provides several frequently-used content providers, such as audio, video, and image. If you want to publish private data of your application, you can create your own content providers class.

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