NSPlaceholderDictionary: essayez d'insérer néant objet à partir d'objets[1]

J'ai deux UITextField cases, une pour minPrice, et un pour maxPrice. Lorsque je tente d'exécuter la fonction déclenchée par la submitButton IBAction, à l'aide de ces deux textfield contenu en tant que paramètres, il précise que les objets sont vide avec le message d'erreur suivant:

'*** -[__NSPlaceholderDictionary initWithObjects:forKeys:count:]: attempt to insert nil object from objects[1]'

Je n'arrive pas à comprendre pourquoi le texte qui est entrée dans l'un de ces champs n'est pas enregistré correctement. Suis-je oublier quelque chose quand I du programme, les initialiser?

CriteriaViewController.h:

#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#import "SearchViewController.h"

@interface CriteriaViewController : UIViewController{

IBOutlet UISegmentedControl *Segment;
}


//@property (nonatomic) IBOutlet UITextField *itemSearch;
@property (weak, nonatomic) IBOutlet UITextField *minPrice;
@property (weak, nonatomic) IBOutlet UITextField *maxPrice;
@property (nonatomic, copy) NSNumber *chosenCategory;
@property (nonatomic, copy) NSString *chosenCategoryName;
@property (weak, nonatomic) NSString *itemCondition;
@property (weak, nonatomic) NSString *itemLocation;
@property (weak, nonatomic) NSString *itemSearch;

@end

CriteriaViewController.m:

#import "CriteriaViewController.h"
@interface CriteriaViewController ()
@property (weak, nonatomic) IBOutlet UISegmentedControl *itemConditionSegment;
@property (weak, nonatomic) IBOutlet UISegmentedControl *itemLocationSegment;
@end
@implementation CriteriaViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
//Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self addMinTextField];
[self addMaxTextField];
//Condition UISegment
UISegmentedControl *conditionSegmentedControl = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"Only New", @"Any", nil]];
conditionSegmentedControl.frame = CGRectMake(87, 190, 157, 30);
conditionSegmentedControl.selectedSegmentIndex = 0;
conditionSegmentedControl.tintColor = [UIColor blackColor];
[conditionSegmentedControl addTarget:self action:@selector(ConditionSegmentControlAction:) forControlEvents: UIControlEventValueChanged];
[self.view addSubview:conditionSegmentedControl];
//Location UISegment
UISegmentedControl *locationSegmentedControl = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"Fast Shipping", @"Large Selection", nil]];
locationSegmentedControl.frame = CGRectMake(67, 275, 200, 30);
locationSegmentedControl.selectedSegmentIndex = 0;
locationSegmentedControl.tintColor = [UIColor blackColor];
[locationSegmentedControl addTarget:self action:@selector(LocationSegmentControlAction:) forControlEvents: UIControlEventValueChanged];
[self.view addSubview:locationSegmentedControl];
//Submit button
UIButton *submitButton = [UIButton buttonWithType:UIButtonTypeRoundedRect]; //Create Round Rect Type button.
submitButton.frame = CGRectMake(100, 100, 100, 100); //define position and width and height for the button.
[submitButton setTitle:@"Submit" forState:UIControlStateNormal];
[submitButton addTarget:self action:@selector(submitButton:) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:submitButton];
}
-(void)addMinTextField{
//This allocates a label
UILabel *prefixLabel = [[UILabel alloc]initWithFrame:CGRectZero];
//This sets the font for the label
[prefixLabel setFont:[UIFont boldSystemFontOfSize:14]];
//This fits the frame to size of the text
[prefixLabel sizeToFit];
//This allocates the textfield and sets its frame
UITextField *minPrice = [[UITextField  alloc] initWithFrame:
CGRectMake(70, 105, 75, 30)];
//This sets the border style of the text field
minPrice.borderStyle = UITextBorderStyleRoundedRect;
minPrice.contentVerticalAlignment =
UIControlContentVerticalAlignmentCenter;
[minPrice setFont:[UIFont boldSystemFontOfSize:12]];
//Placeholder text
minPrice.placeholder = @"150";
//Prefix label is set as left view and the text starts after that
minPrice.leftView = prefixLabel;
//It set when the left prefixLabel to be displayed
minPrice.leftViewMode = UITextFieldViewModeAlways;
//Adds the textField to the view.
[self.view addSubview:minPrice];
//sets the delegate to the current class
minPrice.delegate = self;
}
-(void)addMaxTextField{
//This allocates a label
UILabel *prefixLabel = [[UILabel alloc]initWithFrame:CGRectZero];
//This sets the font for the label
[prefixLabel setFont:[UIFont boldSystemFontOfSize:14]];
//This fits the frame to size of the text
[prefixLabel sizeToFit];
UITextField *maxPrice = [[UITextField  alloc] initWithFrame:
CGRectMake(185, 105, 75, 30)];
//for max price
maxPrice.borderStyle = UITextBorderStyleRoundedRect;
maxPrice.contentVerticalAlignment =
UIControlContentVerticalAlignmentCenter;
[maxPrice setFont:[UIFont boldSystemFontOfSize:12]];
//Placeholder text is displayed when no text is typed
maxPrice.placeholder = @"300";
//Prefix label is set as left view and the text starts after that
maxPrice.leftView = prefixLabel;
//It set when the left prefixLabel to be displayed
maxPrice.leftViewMode = UITextFieldViewModeAlways;
//Adds the textField to the view.
[self.view addSubview:maxPrice];
//sets the delegate to the current class
maxPrice.delegate = self;
}
- (void)ConditionSegmentControlAction:(UISegmentedControl *)segment
{
if(segment.selectedSegmentIndex == 0)
{
//set condition to new
self.itemCondition = @"new";
}
else if (segment.selectedSegmentIndex == 1)
{
//set condition to all
self.itemCondition = @"all";
}
}
- (void)LocationSegmentControlAction:(UISegmentedControl *)segment
{
if(segment.selectedSegmentIndex == 0)
{
//set location to us
self.itemLocation = @"US";
}
else if (segment.selectedSegmentIndex == 1)
{
//set clocation to worldwide
self.itemLocation = @"Worldwide";
}
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
//Dispose of any resources that can be recreated.
}
//add all the info to users respective new category object
- (IBAction)submitButton:(id)sender
{
//if (self.minPriceField.text.length > 0 && self.maxPrice.text.length > 0) {
[PFCloud callFunctionInBackground:@"userCategorySave"
withParameters:@{@"categoryId": self.chosenCategory,
@"minPrice": self.minPrice,
@"maxPrice": self.maxPrice,
@"itemCondition": self.itemCondition,
@"itemLocation": self.itemLocation,
@"categoryName": self.chosenCategoryName,
}
block:^(NSString *result, NSError *error) {
if (!error) {
NSLog(@"Criteria successfully saved.");
[self performSegueWithIdentifier:@"SearchCategoryChooserToMatchCenterSegue" sender:self];
}
}];
//}
}
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
//   [PFCloud callFunctionInBackground:@"addToMatchCenter"
//                      withParameters:@{
//                                       @"searchTerm": self.itemSearch,
//                                       @"categoryId": self.chosenCategory,
//                                       @"minPrice": self.minPrice,
//                                       @"maxPrice": self.maxPrice,
//                                       @"itemCondition": self.itemCondition,
//                                       @"itemLocation": self.itemLocation,
//                                       }
//                               block:^(NSString *result, NSError *error) {
//                                   
//                                   if (!error) {
//                                       NSLog(@"'%@'", result);
//                                   }
//                               }];
//Get the new view controller using [segue destinationViewController].
//Pass the selected object to the new view controller.
}
@end

OriginalL'auteur Ghobs | 2014-07-06