What is difference between contentprovider and contentResolver in android

Question

What is the difference between ContentProviders and ContentResolver? I do not want for the SQLite database. I am developing an app

Answer 1

ContentProviders are used to abstract the database from other parts and acts as an interface between your database and UI/other classes. You must create your own ContentProvider to share your app data with other apps.

ContentResolver is used to select the right ContentProvider based on the ContentUris. A ContentUri may look like

content://com.android.contacts/contacts/3

• content:// is called scheme and indicates that it is a ContentUri.
• com.android.contacts is called Content authority and ContentResolver uses it to resolve to a unique provider (in this case, ContactProvider).
• contacts is the path that identify some subset of the provider's data (for example, Table name).
• 3 is the id used to uniquely identify a row within the subset of data.

NOTE : Your own app can also use this route to handle its data.

See Content Providers in Android for more detail