java - How do I use the TrackBall API in Blackberry? -

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i want scroll , down in custom menu have made using trackball, how receive , filter trackball events? (i know how process keyboard events using protected boolean keychar(char key, int status, int time).)

your best bet use navigationclick, navigationmovement , navigationunclick methods in field:

http://www.blackberry.com/developers/docs/4.2.1api/net/rim/device/api/ui/screen.html#navigationmovement%28int,%20int,%20int,%20int%29

or if want events before of fields do, override same methods on top-level screen.

rim discourages use of old trackwheel api. navigation way go.


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