trackroll does not works as i want or expect to do,blackberry
- by SWATI
i am working on blackberry curve 8300
i have added some components in the main screen,now i want to move the focus vertically when the trackball moves up or down and move the focus horizontally when track-Wheel moves left or right.
==================================================================================
--Title area that contains a focusable field(BACK)--
--Non focusable Label field that indicates the name of the user--
--A horizontal field manager1 that contains 4 buttons--
--A horizontal field manager2 that contains 4 buttons--
--A horizontal field manager2 that contains 4 buttons--
==================================================================================
now suppose currently focus is on BACK button and i scroll the track-wheel downwards then,
focus should come on 1st button of manager1
Again when i scroll downwards,then focus should come on the 1st button of manager2 and not the 2nd button of manager1(as its happening on device)
my code is :::
protected boolean trackwheelRoll(int amount, int status, int time)
{
focusIndex = this.getFieldWithFocusIndex();
System.out.println("focus index ::::::::::::::::"+focusIndex);
Field f;
if(focusIndex!=0)
{
if(amount==-1)
{
//move up
if(focusIndex>=0)
{
focusIndex = focusIndex-1;
f = getField(focusIndex);
f.setFocus();
}
}
if(amount==1)
{
//moving down
if(focusIndex<=3)
{
f = getField(++focusIndex);
f.setFocus();
}
}
}
return super.trackwheelRoll(amount, status, time);
}
even after this control moves abruptly on simulator
but on device no change took place
