A project which supports the devices to screen both touch and non touch screen.
Our team works at the request of BB, which is oriented to a wide range of supported devices. It should support devices with OS version 4.2 - 5.0. We decided to use the v4.2 OS APIs. Then our application would be supported by all devices. It was a successful until recent times. Problems arose when we started to use navigationMovement() function to handle events of movement. This function works very well on devices with a trackball and it does not work on touch screens. On touchscreens, we should replace touchEvent() function.
When we added touchEvent function to our project, then the project could not be started on devices with OS< v4.7="" (error="" starting="" application:="" class="" 'net.rim.device.api.ui.touchevent'="" not="" found).="" so="" i="" think="" we="" should="" split="" our="" project="" in="" two="" branches:="" the="" first="" will="" support ="" touch="" screens="" and="" the="" second="" one="" will="" not.="" there="" will="" be="" two="" shortcomings="" in="" this="">
1. we must ensure on corrections in the two projects. It can happen that one branch has been updated and the other is not observed (has been forgotten for example).
2 instead of this a binary, we will have two binary. But it is easier to have a binary that works on all desired platforms.
So please give me an advice how should we update our project to make it work on touch and non-touch screen devices.
Software development we use: JDE 4.2 and 4.7 JDE.
you could build a library for the base classes 4.7 project and use the dynamicy for them class (class.forname) loading. or use the preprocessor, but then you would still have 2 versions
Tags: BlackBerry Developers
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