How to distinguish ContentProvider work from interaction with the file system in Android?

ContentProvider in Android is an abstraction for data access that provides a unified interface for reading and writing data between applications. Unlike direct interaction with the file system, ContentProvider operates through URIs and methods such as query(), insert(), update(), delete(), ensuring access control and change notifications.

Main differences:

• Security and access control: ContentProvider can restrict access to data, whereas files can be accessed directly if no special settings are applied.
• Unified interface: ContentProvider uses ContentResolver and URIs for access, while the file system uses direct file paths.
• Inter-process communication: ContentProvider allows data exchange between applications, while the file system does so only if files are accessible and permitted.

Example of using ContentProvider:

Uri uri = Uri.parse("content://com.example.provider/items");
Cursor cursor = getContentResolver().query(uri, null, null, null, null);

While working with the file system looks like this:

File file = new File(getFilesDir(), "data.txt");
FileInputStream fis = new FileInputStream(file);