UIPickerView with changing JSON values - ios

Question

I am very new to Objective-C so please bear with me.
I have been working on a UIPickerView that uses JSON data and can change the values of the second component based on which option is selected on the first component.
I have used two examples I found online to try and create this, one for using JSON with a UIPickerView and one for a UIPickerView that changes the value of the second component based on the selection in the first.
I have got both of these examples working separately but can't combine them to get them to work.
I have a feeling I might be going about this the wrong way so I came here to get some help and advice.
Heres my code:
#import "ViewController.h"
#interface ViewController ()
{
NSMutableArray *Nations;
NSMutableArray *England;
NSMutableArray *Espana;
NSMutableArray *Netherlands;
NSMutableArray *Germany;
NSMutableArray *Italy;
NSDictionary *Engdict;
NSDictionary *Espdict;
NSDictionary *Netdict;
NSDictionary *Gerdict;
NSDictionary *Itadict;
// Define keys
NSString *footballclub;
NSString *team;
}
#end
#implementation ViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
Nations = [[NSMutableArray alloc]initWithObjects:#"England",#"Espana",#"Netherlands",#"Germany",#"Italy", nil];
footballclub = #"FootballClub";
England = [[NSMutableArray alloc] init];
Espana = [[NSMutableArray alloc] init];
Netherlands = [[NSMutableArray alloc] init];
Germany = [[NSMutableArray alloc] init];
Italy = [[NSMutableArray alloc] init];
NSData *EngjsonData = [NSData dataWithContentsOfURL:
[NSURL URLWithString:#"http://url./England.php"]];
NSData *EspjsonData = [NSData dataWithContentsOfURL:
[NSURL URLWithString:#"http://url.com/Espana.php"]];
NSData *NetjsonData = [NSData dataWithContentsOfURL:
[NSURL URLWithString:#"http://url.com/Netherlands.php"]];
NSData *GerjsonData = [NSData dataWithContentsOfURL:
[NSURL URLWithString:#"http://url.com/Germany.php"]];
NSData *ItajsonData = [NSData dataWithContentsOfURL:
[NSURL URLWithString:#"http://url.com/Italy.php
id EngjsonObjects = [NSJSONSerialization JSONObjectWithData:EngjsonData options:NSJSONReadingMutableContainers error:nil];
id EspjsonObjects = [NSJSONSerialization JSONObjectWithData:EspjsonData options:NSJSONReadingMutableContainers error:nil];
id NetjsonObjects = [NSJSONSerialization JSONObjectWithData:NetjsonData options:NSJSONReadingMutableContainers error:nil];
id GerjsonObjects = [NSJSONSerialization JSONObjectWithData:GerjsonData options:NSJSONReadingMutableContainers error:nil];
id ItajsonObjects = [NSJSONSerialization JSONObjectWithData:ItajsonData options:NSJSONReadingMutableContainers error:nil];
for (NSDictionary *EngdataDict in EngjsonObjects) {
NSString *strFootballClub = [EngdataDict objectForKey:#"FootballClub"];
Engdict = [NSDictionary dictionaryWithObjectsAndKeys:
strFootballClub, footballclub,
nil];
[England addObject:Engdict];
}
for (NSDictionary *EspdataDict in EspjsonObjects) {
NSString *strFootballClub = [EspdataDict objectForKey:#"FootballClub"];
Espdict = [NSDictionary dictionaryWithObjectsAndKeys:
strFootballClub, footballclub,
nil];
[Espana addObject:Espdict];
}
for (NSDictionary *NetdataDict in NetjsonObjects) {
NSString *strFootballClub = [NetdataDict objectForKey:#"FootballClub"];
Netdict = [NSDictionary dictionaryWithObjectsAndKeys:
strFootballClub, footballclub,
nil];
[Netherlands addObject:Netdict];
}
for (NSDictionary *GerdataDict in GerjsonObjects) {
NSString *strFootballClub = [GerdataDict objectForKey:#"FootballClub"];
Gerdict = [NSDictionary dictionaryWithObjectsAndKeys:
strFootballClub, footballclub,
nil];
[Germany addObject:Gerdict];
}
for (NSDictionary *ItadataDict in ItajsonObjects) {
NSString *strFootballClub = [ItadataDict objectForKey:#"FootballClub"];
Itadict = [NSDictionary dictionaryWithObjectsAndKeys:
strFootballClub, footballclub,
nil];
[Italy addObject:Itadict];
}
}
- (NSInteger)numberOfComponentsInPickerView:(UIPickerView *)pickerView
{
return 2;
}
- (NSInteger)pickerView:(UIPickerView *)pickerView numberOfRowsInComponent: (NSInteger)component
{
if(component ==0)
{
return [Nations count];
}
else {
if ([team isEqualToString:#"England"]) {
return [England count];
}
if ([team isEqualToString:#"Espana"]) {
return [Espana count];
}
if ([team isEqualToString:#"Netherlands"]) {
return [Netherlands count];
}
if ([team isEqualToString:#"Germany"]) {
return [Germany count];
}
else {
return [Italy count];
}
}
return 0;
}
- (NSString *)pickerView:(UIPickerView *)pickerView titleForRow:(NSInteger)row forComponent:(NSInteger)component
{
NSDictionary *EngtmpDict = [England objectAtIndex:row];
NSDictionary *EsptmpDict = [Espana objectAtIndex:row];
NSDictionary *NettmpDict = [Netherlands objectAtIndex:row];
NSDictionary *GertmpDict = [Germany objectAtIndex:row];
NSDictionary *ItatmpDict = [Italy objectAtIndex:row];
if(component ==0)
{
return [Nations objectAtIndex:row];
}
else {
if ([team isEqualToString:#"England"]) {
return [EngtmpDict objectForKey:footballclub];
}
if ([team isEqualToString:#"Espana"]) {
return [EsptmpDict objectForKey:footballclub];
}
if ([team isEqualToString:#"Netherlands"]) {
return [NettmpDict objectForKey:footballclub];
}
if ([team isEqualToString:#"Germany"]) {
return [GertmpDict objectForKey:footballclub];
}
else {
return [ItatmpDict objectForKey:footballclub];
}
}
return 0;
}
-(void)pickerView:(UIPickerView *)pickerView didSelectRow:(NSInteger)row inComponent:(NSInteger)component
{
if (component == 0) {
team=[[NSString alloc] initWithFormat:#"%#" , [Nations objectAtIndex:row]];
[pickerView reloadComponent:1];
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (void)dealloc {
}
#end
This comes up in the debug screen when I try to run it.
Terminating app due to uncaught exception 'NSRangeException',
reason: '*** -[__NSArrayM objectAtIndex:]: index 1 beyond bounds [0 .. 0]'