key value observing - UITableView reloads row with unwanted fade when previous section is hidden -


i have uitableviewcontroller displays properties of nsmanagedobject in grouped tableview. values of properties can changed custom uitableviewcell subclasses have uisteppers , uitextfields. table has 9 sections, when of nsmanagedobject's properties nil, hide sections setting numberofrowsinsection 0, heightforheaderinsection , heightforfooterinsection 1. works fine; sections hidden.

the custom cells call delegate method changes nsmanagedobject's property values, , uitableviewcontroller set kvo observe properties of nsmanagedobject, , reload individual rows when corresponding properties change. here's beginning of method:

#define position 3 #define targeted_by 5  - (void)observevalueforkeypath:(nsstring *)keypath ofobject:(id)object change:(nsdictionary *)change context:(void *)context {     if ([keypath isequaltostring:@"positionx"]) {         [self.tableview reloadrowsatindexpaths:[nsarray arraywithobject:[nsindexpath indexpathforrow:0 insection:position]]                               withrowanimation:uitableviewrowanimationnone];      } else if ([keypath isequaltostring:@"positiony"]) {         [self.tableview reloadrowsatindexpaths:[nsarray arraywithobject:[nsindexpath indexpathforrow:1 insection:position]]                               withrowanimation:uitableviewrowanimationnone];      } else if ([keypath isequaltostring:@"istargetedby"]) {         [self.tableview reloadsections:[nsindexset indexsetwithindex:targeted_by]                       withrowanimation:uitableviewrowanimationnone];        } }

it's not complete method properties, idea.

the problem: when i've hidden section above properties, , change value of positionx, cell @ row 0 (the correct positionx cell) reloads not uitableviewrowanimationnone, appears uitableviewrowanimationfade. moves, , don't want to. subclass directly uitableviewcontroller, , there's no other method in class reloads rows or sections other -rowanimationnone. , when try reload whole section no animation, whole section animates. none of other rows in section behave this; reload correctly, no animation. , row 0 reloads no animation when section above not hidden.

i can work around calling [self.tableview reloaddata], i'd rather not way, sake of time , hackiness. have idea how prevent behavior?

this can complicated when many sections involved. think you're trying replicate free sensible tableview framework does. framework automatically generate sections based on managed object's data, , can determine sections make visible based on own rules. worth checking out save tons of time trying reinvent this.


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