countBottomSpace method
Implementation
double countBottomSpace(int position){
if(position==keyArray.length-1||heightArray.length==0){
return verticalSpace;
}
double bottom=0;
for(int i=position;i<keyArray.length-1;i++){
bottom=bottom+verticalSpace+(heightArray.length==0?0:heightArray[i+1]);
}
return (bottom)*animation.value+verticalSpace;
}