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I have a ContentProvider which is declared in the Manifest, when is it really created ? When the application is launched but before launching the first activity ? When the first query/update/insert is done ? When ?
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A content provider manages access to a central repository of data. A provider is part of an Android application, which often provides its own UI for working with the data. However, content providers are primarily intended to be used by other applications, which access the provider using a provider client object.
Create a class in the same directory where the that MainActivity file resides and this class must extend the ContentProvider base class. To access the content, define a content provider URI address. Create a database to store the application data. Implement the six abstract methods of ContentProvider class.
An Intent is involved when we start an activity, start or bind to a service, or send a broadcast. However, comparing an Intent to a ContentProvider is akin to comparing a shovel with a boot, arguing that both can be used to carry dirt.
A content provider manages access to a central repository of data. You implement a provider as one or more classes in an Android application, along with elements in the manifest file. One of your classes implements a subclass ContentProvider , which is the interface between your provider and other applications.
From http://developer.android.com/reference/android/content/ContentProvider.html#onCreate():
Implement this to initialize your content provider on startup. This method is called for all registered content providers on the application main thread at application launch time. It must not perform lengthy operations, or application startup will be delayed.
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