Objectif C: erreur de propriétés

Question

Je reçois un type d'erreur lors de la définition d'une valeur sur une propriété NSArray de mon code. Je vais vous envoyer du code et la sortie du débogueur.

@interface RootViewController : UITableViewController { 
@private 
NSArray* regioesArray; 
// NSString *str; 
// NSArray *ar; 
} 

@property(nonatomic, retain) NSArray *regioesArray; 

@implementation RootViewController 

@synthesize regioesArray; 
//@synthesize str; 
//@synthesize ar; 

- (void)viewDidLoad { 
[super viewDidLoad]; 

//Set Title 
self.title = @"Regiões"; 
self.regioesArray = nil; 
} 

- (void)viewDidUnload { 
    self.regioesArray = nil; 
} 


- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { 
return 2; 
} 


- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { 
if(section == 0 && self.regioesArray != nil){ 
    return [regioesArray count]; 
}else { 
    return 0; 
} 
} 


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { 

static NSString *MyIdentifier = @"MyIdentifier"; 

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:MyIdentifier]; 
if (cell == nil) { 
    cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:MyIdentifier] autorelease]; 
} 

// Set up the cell 
Zona *zona = (Zona *)[regioesArray objectAtIndex:indexPath.row]; 
cell.text = [zona nome]; 
[cell.contentView addSubview: [self getDetailDiscolosureIndicatorForIndexPath: indexPath]]; 
[zona release]; 

return cell; 
} 


- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { 
    // Navigation logic 
} 


/* 
Override if you support editing the list 
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath { 

if (editingStyle == UITableViewCellEditingStyleDelete) { 
    // Delete the row from the data source 
    [tableView deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:YES]; 
} 
if (editingStyle == UITableViewCellEditingStyleInsert) { 
    // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view 
} 
} 
*/ 


/* 
Override if you support conditional editing of the list 
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath { 
// Return NO if you do not want the specified item to be editable. 
return YES; 
} 
*/ 


/* 
Override if you support rearranging the list 
- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath { 
} 
*/ 


/* 
Override if you support conditional rearranging of the list 
- (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath { 
// Return NO if you do not want the item to be re-orderable. 
return YES; 
} 
*/ 


- (void)viewWillAppear:(BOOL)animated { 
[super viewWillAppear:animated]; 
} 

- (void)viewDidAppear:(BOOL)animated { 
[super viewDidAppear:animated]; 
} 

- (void)viewWillDisappear:(BOOL)animated { 
} 

- (void)viewDidDisappear:(BOOL)animated { 
} 


- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { 
// Return YES for supported orientations 
return (interfaceOrientation == UIInterfaceOrientationPortrait); 
} 


- (void)didReceiveMemoryWarning { 
[super didReceiveMemoryWarning]; // Releases the view if it doesn't have a superview 
// Release anything that's not essential, such as cached data 
} 


- (void)dealloc { 
[super dealloc]; 
[regioesArray release]; 
} 


- (UIButton *) getDetailDiscolosureIndicatorForIndexPath: (NSIndexPath *) indexPath 
{ 
    UIButton *button = [UIButton buttonWithType: UIButtonTypeDetailDisclosure]; 
    button.frame = CGRectMake(320.0 - 44.0, 0.0, 44.0, 44.0); 
    [button addTarget:self action:@selector(detailDiscolosureIndicatorSelected:) forControlEvents:UIControlEventTouchUpInside]; 
    return button; 
} 

- (void) detailDiscolosureIndicatorSelected: (UIButton *) sender 
{ 
    // 
    // Obtain a reference to the selected cell 
    // 
    UITableViewCell *cell = [self.tableView cellForRowAtIndexPath: [self.tableView indexPathForSelectedRow]]; 

    // 
    // Do something like render a detailed view 
    // 
    /// ... 
} 

@end 

- (void)applicationDidFinishLaunching:(UIApplication *)application { 

// Create the navigation and view controllers 
RootViewController *rootViewController = [[[RootViewController alloc] initWithStyle:UITableViewStylePlain] autorelease]; 

UINavigationController *aNavigationController = [[UINavigationController alloc] initWithRootViewController:rootViewController]; 
self.navigationController = aNavigationController; 

NSArray * regioes = [self createRegions]; 
    rootViewController.regioesArray = regioes; 


[regioes release]; 
[rootViewController release]; 
[aNavigationController release]; 
// Configure and show the window 
[window addSubview:[navigationController view]]; 
[window makeKeyAndVisible]; 

} 

L'erreur est sur la ligne rootViewController.regioesArray = Regiões; Je ne peux pas attribuer de valeur à cette propriété, même pas "néant".

Voici le debug:

 2010-10-16 01:35:43.965 TransitoRio[4224:207] *** -[RootViewController setRegioesArray:]: unrecognized selector sent to instance 0x1813ef0 2010-10-16 01:35:43.968 TransitoRio[4224:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[RootViewController setRegioesArray:]: unrecognized selector sent to instance 0x1813ef0' 

Est-ce que quelqu'un sait ici ce qui pourrait arriver?

Comme demandé, voici la méthode « createRegions »:

 

- (NSArray *)createRegions { 
    NSMutableArray *regioes = [[NSMutableArray alloc] init]; 

    Zona *regiao = [[Zona alloc] init]; 
    regiao.nome = @"Zona Sul"; 
    [regioes addObject:regiao]; 
    [regiao release]; 

    regiao = [[Zona alloc] init]; 
    regiao.nome = @"Zona Norte"; 
    [regioes addObject:regiao]; 
    [regiao release]; 

    regiao = [[Zona alloc] init]; 
    regiao.nome = @"Zona Oeste"; 
    [regioes addObject:regiao]; 
    [regiao release]; 

    regiao = [[Zona alloc] init]; 
    regiao.nome = @"Centro"; 
    [regioes addObject:regiao]; 
    [regiao release]; 

    // Sort the regions. 
    NSSortDescriptor *sortDescriptor = [[NSSortDescriptor alloc] initWithKey:@"nome" ascending:YES]; 
    NSArray *sortDescriptors = [[NSArray alloc] initWithObjects:&sortDescriptor count:1]; 

    NSArray *sortedRegions = [regioes sortedArrayUsingDescriptors:sortDescriptors]; 

    [sortDescriptor release]; 
    [sortDescriptors release]; 

    [regioes release]; 
    [sortedRegions retain]; 

    return sortedRegions; 
}

Answer 1

Je vois que vous avez déclaré votre choix d'être privé dans le fichier d'en-tête, donc vous ne devriez pas accéder à la propriété à l'extérieur de la classe.