return [item children] ? nil : item;
}
-- (int)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item {
+- (NSInteger)outlineView:(NSOutlineView *)outlineView numberOfChildrenOfItem:(id)item {
return item ? [[item children] count] : _joysticks.count;
}
return item ? [[item children] count] > 0: YES;
}
-- (id)outlineView:(NSOutlineView *)outlineView child:(int)index ofItem:(id)item {
+- (id)outlineView:(NSOutlineView *)outlineView child:(NSInteger)index ofItem:(id)item {
return item ? [item children][index] : _joysticks[index];
}