several signals for AbstractPane

I want AbstractPane to emit a signal when it is pushed or view depilated. This will have many uses for everyone, but a specific use that I have is that my component currently connects to the signals of the other classes (and done a lot of work when it receives a signal), and I would call disconnect when the pane is not visible, in order to avoid the heavy calculations which are relevant only if the pane is visible.

Currently, only NavigationPane emits a signal, for example when the upper part changes, but this tells you just what the new top is not seen just disappeared. I can subclass of the NavigationPane courses, keeps a snapshot of the view stack, and emit a signal suitable for the pane disappears and the pane that appears, but the best place for this code is in Cascased itself, not in my code.

Please request a feature Issue Tracker: http://supportforums.blackberry.com/t5/Java-Development/Developer-Issue-Tracker/td-p/271768

Ideally these signals should be issued of the NavigationPane rather than the AbstractPane as AbstractPane is too general and does not control when pages are displayed or hidden.

Tags: BlackBerry Developers

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