Scrolling problem in Blackberry application

问题

I am not able to scroll through the application screen using trackball. I am using Blackberry Pearl 8100 simulator. Please help.

Thanks in advance.

回答1:

Does it work on other simulators and just not the 8100? How about a real handset?

For your screen class you can try using the style attribute to specifically tell it to have vertical scrolling,

super(MainScreen.VERTICAL_SCROLL | MainScreen.VERTICAL_SCROLLBAR);

similarly you should make sure that it's not set to

super(MainScreen.NO_VERTICAL_SCROLL)

来源：https://stackoverflow.com/questions/833324/scrolling-problem-in-blackberry-application