A question on the example of RIM splashSreen

I noticed that thatUiApplication.getUIApplication () is passed to the SplashScreen() constructor.

Public SplashScreen (UiApplication ui, the next screen) { }

now, as the SplashScreen object is part of the same application, and there is only a single user interface by app, why it is passed in the constructor rather than simply having the GET SplashScreen() with the static method as follows:

protected static UiApplication applications = UiApplication.getUiApplication ();

within the SplashScreen class?  Does not seem necessary to pass, and he created and additional variable.  I have coded this way and know it works both ways, but I wonder why that was the sign chosen decision.

Is interesting, if I 'chain' splash screens derived an abstract SplashScreen that uses approach 'get it internally', the first in the chain works, but the second call of the first winds with a UiApplication that has the value zero, and this results in an exception.  This makes me believe that I do not understand the underlying infrastructure.

Patrick

UiApplication.getUiApplication returns an instance of the current application in the foreground.  If it is called when the application is in the background, it will not receive the appropriate UiApplication and sample might fail.  Having a developer put it in to ensure that the value is valid.

Tags: BlackBerry Developers

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