![]() ![]() Instead, store any mutable shared data using persistence strategies such as files, SharedPreferences or SQLite. Note that you should never store mutable shared data inside the Application object since that data might disappear or become invalid at any time. Static methods for easy access to static immutable data such as a shared network client object.Global initialization that needs to be shared across all components (crash reporting, persistence).Specialized tasks that need to run before the creation of your first activity.However, there are a few acceptable uses of a custom application class: In many apps, there's no need to work with an application class directly. Note that custom Application objects should be used carefully and are often not needed at all. This class is primarily used for initialization of global state before the first Activity is displayed. ![]() The Application class, or any subclass of the Application class, is instantiated before any other class when the process for your application/package is created. ![]() The Application class in Android is the base class within an Android app that contains all other components such as activities and services. ![]()
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