SplitViewController reference logic - ios

Question

I read allot about the SplitViewControllers but i am walking in circles because i dont understand something.
You have a masterviewcontroller and a popoverview as a bar button item (filter)
lets say masterviewcontroller is a tableview and in the popoverview is a uiview controller
On the iphone i always alloced the masterviewcontroller and update the reference after some modifications, when you hit the button "search", it pushed a new controller with new data (come to think of it,maybe this wasnt the best idea) now that logic doesnt work anymore.
I have read you have to reference the controllers to each other, so i did it like this.
in the filtercontroller (this is the popoverview)
.h
#property (strong, nonatomic) MasterViewController *masterviewController;
#property (weak, nonatomic) IBOutlet UISlider *filterPrice;
- (IBAction)filterSearch:(id)sender;
.m
- (IBAction)filterSearch:(id)sender {
self.masterviewController.filterSearchPrice = [NSNumber numberWithInt:self.filterPrice.value];
[self.masterviewController performFilterSearch];
}
the performFilterSearch checks the fields, makes a call to an url with the filternames and json objects come back,parse and reload data happens..
Now i expect the masterviewcontroller to show new data but that doesnt happen, in fact nothing happens...
Update this is FilterSearch:
-(void)performFilterSearch
{
[queue cancelAllOperations];
[[AFImageCache sharedImageCache] removeAllObjects];
[[NSURLCache sharedURLCache] removeAllCachedResponses];
isLoading =YES;
[self.tableView reloadData];
searchResults = [NSMutableArray arrayWithCapacity:10];
NSURL *url = [self urlFilterWithSearchPrice:filterSearchPrice];
NSLog(#"%#",url);
NSURLRequest *request = [NSURLRequest requestWithURL:url];
AFJSONRequestOperation *operation = [AFJSONRequestOperation
JSONRequestOperationWithRequest:request
success:^(NSURLRequest *request, NSHTTPURLResponse *response, id JSON) {
[self parseDictionary:JSON];
isLoading = NO;
[self.tableView reloadData];
}
failure:^(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON) {
[self showNetworkError];
isLoading = NO;
[self.tableView reloadData];
}];
operation.acceptableContentTypes = [NSSet setWithObjects:#"application/json", #"text/json", #"text/javascript",#"text/html", nil];
[queue addOperation:operation];
}
btw when i Nslog in filterSearch to check if its updated:
NSLog(#"%d",self.masterviewController.filterSearchPrice);
NSLog(#"%d",[self.filterTypeSegmentedControl selectedSegmentIndex]);
the first one never gets updated the second one gets updated off course
Update 2: (how do i launch the popview):
I added a bar button item on the masterviewcontrollers navigation that has an action.
I added a popover segue from the masterviewcontroller -> filtercontroller
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
filterPopOver = [(UIStoryboardPopoverSegue *)segue popoverController];
}
- (IBAction)filterPopButton:(id)sender {
if (filterPopOver){
[filterPopOver dismissPopoverAnimated:YES];
}
else{
[self performSegueWithIdentifier:#"showFilterPopover" sender:sender];
}
}

Answer 1

When you launch your filterController, you need to pass in a reference to the MasterViewController. You have a property for it in the filter controller, but you never assign a value to that property.
After Edit:
Your prepareForSegue method should look like this:
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
FilterController *fc = (FilterController *)segue.destinationViewController;
fc.masterViewController = self;
}
Make sure that you've imported MasterViewController.h into you FilterController.m