Xcode - IB elements not shown in my view at runtime - ios

Question

I've got a very weird problem with my iOS project.
I have a UIViewController with some labels and buttons and when user enters this view I programmatically build a gameboard (it's the minesweeper game).
What I wanted to do now is add a simple element (in my case a segmented control but i tried also with a button and doesn't work) at the bottom or at the beginning of the board.
When I add something from the Interface Builder I can see that in the storyboard but when I run the app puff, it's disappeared!
View contains only the "old" elements and the new one is not shown.
Yes I made a IBOutlet:
#property (weak, nonatomic) IBOutlet UISegmentedControl *clickTypeSegmentedControl;
And yes I checked if references of segemented control are ok.
I can't really understand what is wrong, if someone can help I'll be very grateful.
** EDIT: I added code of the ViewController, there are some other methods I left out because they only handle the game. I repeat: even if I add a simple button with no actions, it will not be shown.
#import "GameViewController.h"
#import "GameBoardModel.h"
#import "ScoreViewController.h"
#import <AVFoundation/AVFoundation.h>
#define UIColorFromRGB(rgbValue) [UIColor colorWithRed:((float)((rgbValue & 0xFF0000) >> 16))/255.0 green:((float)((rgbValue & 0xFF00) >> 8))/255.0 blue:((float)(rgbValue & 0xFF))/255.0 alpha:1.0]
#interface GameViewController ()
#property (weak, nonatomic) IBOutlet UILabel *timerLabel;
#property (weak, nonatomic) IBOutlet UILabel *bombsLabel;
#property (weak, nonatomic) IBOutlet UIButton *restartButton;
#property(nonatomic, strong) AVAudioPlayer *soundEffects;
#property (weak, nonatomic) IBOutlet UISegmentedControl *clickTypeSegmentedControl;
#end
#implementation GameViewController
#synthesize difficulty, timer, playerName, scoreToAdd, clickTypeSegmentedControl;
double secondsPassed=-1.0f;
int seconds=0;
int totalRowsCols=0, totalMines=0, heightWidth=0, clicKNumber=0;
static NSString * const IMAGE_NAME_FLAG = #"flag.png";
static NSString * const IMAGE_NAME_BOMB_X = #"bomb.png";
- (void)viewDidLoad
{
[super viewDidLoad];
self.navigationItem.hidesBackButton = YES;
UIBarButtonItem *backButton =[[UIBarButtonItem alloc]initWithTitle:#"Menù" style:UIBarButtonItemStyleBordered target:self action:#selector(popAlertAction:)];
self.navigationItem.leftBarButtonItem=backButton;
clickTypeSegmentedControl.selectedSegmentIndex = 0;
rootController = (BombsSeekerViewController *)[self.navigationController.viewControllers objectAtIndex:0];
NSUserDefaults *defaults=[NSUserDefaults standardUserDefaults];
playerName = [defaults objectForKey:#"NomeGiocatore"];
scoreToAdd = [[NSMutableDictionary alloc]init];
[self createGameBoard:difficulty];
[self newGame:nil];
}
-(void) newGame:(UIButton *)sender {
[self.view.subviews makeObjectsPerformSelector: #selector(removeFromSuperview)];
clicKNumber=0;
secondsPassed=0;
self.timerLabel.text = [self labelString:secondsPassed];
self.game = [[Game alloc] initWithWidth:totalRowsCols AndHeight:totalRowsCols AndMineCount:totalMines];
self.buttonArray = [[NSMutableArray alloc] init];
[self.restartButton addTarget:self action:#selector(newGame:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.restartButton];
[self.view addSubview:self.timerLabel];
[self.view addSubview:self.bombsLabel];
for(int i = 0; i < totalRowsCols; i++) {
for (int j = 0; j < totalRowsCols; j++) {
self.button = [[Tile alloc] initWithLocation: CGPointMake(j,i) andHW:heightWidth andBlock:self.game.board[j][i] andTag:(i*totalRowsCols+j)];
[self.buttonArray addObject:self.button];
[self.view addSubview:self.button];
[self.button addTarget:self action:#selector(click:) forControlEvents:UIControlEventTouchUpInside];
}
}
[self.timer invalidate];
}
- (void) createGameBoard:(int)diff{
switch (diff) {
case 1:
totalRowsCols = 6;
totalMines = 2;
heightWidth = 44;
break;
case 2:
totalRowsCols = 8;
totalMines = 16;
heightWidth = 35;
break;
case 3:
totalRowsCols = 10;
totalMines = 25;
heightWidth = 29;
break;
}
self.flagCount = totalMines;
_bombsLabel.text = [NSString stringWithFormat:#"%d",self.flagCount];
}
-(NSString *) labelString: (int) num {
if(num < 10) {
return [NSString stringWithFormat:#"00%i",num];
}
else if(self.timeCount.intValue < 100) {
return [NSString stringWithFormat:#"0%i",num];
}
else if(self.timeCount.intValue < 1000) {
return [NSString stringWithFormat:#"%i",num];
}
else
return #"---";
}
-(void) click:(Tile *)sender {
if(clicKNumber <1){
[self refreshLabel:self.timer];
self.timer = [NSTimer scheduledTimerWithTimeInterval:1
target:self
selector:#selector(refreshLabel:)
userInfo:nil
repeats:YES];
clicKNumber++;
}
if(self.game.gameStatus == STATUS_LOST || self.game.gameStatus == STATUS_WON) return;
if (self.clickTypeSegmentedControl.selectedSegmentIndex == 0 && sender.block.marking == MARKING_BLANK) {
[self.game clickedAtColumn: sender.point.x AndRow: sender.point.y];
for(Tile *b in self.buttonArray) {
if(b.block.marking == MARKING_CLICKED) {
b.enabled = NO;
}
else if(b.block.marking == MARKING_BLANK) {
[b setTitle:#"" forState:UIControlStateNormal];
[b setImage:nil forState:UIControlStateNormal];
}
}
}
else if (self.clickTypeSegmentedControl.selectedSegmentIndex == 1){
if(sender.block.marking == MARKING_BLANK && self.flagCount > 0) {
sender.block.marking = MARKING_FLAGGED;
self.flagCount--;
_bombsLabel.text = [NSString stringWithFormat:#"%d",self.flagCount];
[sender setImage:[UIImage imageNamed:IMAGE_NAME_FLAG] forState:UIControlStateNormal];
}
else if(sender.block.marking == MARKING_FLAGGED) {
sender.block.marking = MARKING_BLANK;
self.flagCount++;
_bombsLabel.text = [NSString stringWithFormat:#"%d",self.flagCount];
[sender setImage:[UIImage imageNamed:#"tile.png"] forState:UIControlStateNormal];
}
}
if(self.game.gameStatus == STATUS_LOST) [self gameLost:sender];
else if(self.game.gameStatus == STATUS_WON) [self gameWon];
}

Answer 1

If this is what I think it is, you should not be doing this:
[self.view.subviews makeObjectsPerformSelector: #selector(removeFromSuperview)];
When the viewDidLoad is called, the newGame method is called, which removes al subviews from Superview. Including the ones added in Storyboard.

Answer 2

Make sure controller in storyboard is linked with the right controller class.

Answer 3

You call this method during -viewDidLoad:
-(void) newGame:(UIButton *)sender {
[self.view.subviews makeObjectsPerformSelector: #selector(removeFromSuperview)];
//...
}
Thus, anything you put in your nib is getting removed after it loads.