I'm developing my own DataField on Edge 820, but why when I tap the DataScreen with my Field the bottom toolbar with "prev", "home" and "next" button does not appear?
Sounds to me like if you don't have a delegate, then the behaviour is just to ignore all taps, rather than to get the default tap behaviour. (I'm sure that's not the behaviour anyone was expecting, and it doesn't seem to be documented...)
This is the kind of situation where I wish the simulator was more fully-fledged and/or the docs more complete. There's a lot of apps I would be afraid to try to develop unless I had the physical device sitting in front of me....
Now it works thanks. I have implemented an InputDelegate and returned false onTap() as you suggested.
You should not need to do this. As I understand it, the behavior you see if you provide no InputDelegate should be the same as the behavior you see when you return false from all of the InputDelegate functions.
You should create a test case and report this in the ConnectIQ Bug Reports forum.
Travis is correct. No input delegate should behave the same has having one and returning false, but I saw an identical report to this one recently, so I am pretty confident that it is a system bug. Creating a bug report post as Travis suggested would be a good idea (if you have not already).