installation screen manager general ui

IM creating a basic application which is mainly an interface to a database. its especially listfields where according to what is selected, the corresponding information is displayed (or a new screen with a new list of things to choose from).   so the question is - when I want to display a new list, do I create a pushing a new screen? or compensation and recreating the current Manager (or one of them) on the current screen.  I use the former, each option pushes a new screen, which is poped when the user is done with it. but I was wondering if it is the preferred more just compensation/re-create method, or maybe just add or remove different managers?

Make some adjustments with the way you expect your users to navigate in your application.

As you found, you can push the new screens above the 'old', and this makes it easier for your users to return to the previous screen.

In terms of efficiency, it's a mixed bag.  Clearly do not have several means screens ask you the footprint is smaller, however adding and removing fields of a screen takes a little time, I timed it removing and adding 30 fields to 5 seconds on a single device.  Clearly, this kind of weather is not acceptable for end users.

ListFields are, in my experience, one of the most effective areas.  It's understandable if one considers, there is little work to do on the device, because you do it all in the drawListRow!  The biggest impact may well be the size of the data behind a ListField - in your case, potentially a large number of lines.  As long as you are sure that your data needs won't kill the memory on the device, I would continue to do what you're doing.

Tags: BlackBerry Developers

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