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POProblem with navigation controller when set title
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  1. POProblem with navigation controller when set title
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    copied!<p>I want to make Navigation with 3 levels. I make the root controller and fill the table with data. But when I touch on some cell my application crash. This is part of my code:</p> <h1>NavAppDelegate.h</h1> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface NavAppDelegate : NSObject &lt;UIApplicationDelegate&gt; { } @property (nonatomic, retain) IBOutlet UIWindow *window; @property (nonatomic, retain) IBOutlet UINavigationController *navigationController; @end </code></pre> <h1>NavAppDelegate.m</h1> <h1>import "NavAppDelegate.h"</h1> <pre><code>@implementation NavAppDelegate @synthesize window=_window; @synthesize navigationController=_navigationController; - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. // Add the navigation controller's view to the window and display. self.window.rootViewController = self.navigationController; [self.window makeKeyAndVisible]; return YES; } - (void)dealloc { [_window release]; [_navigationController release]; [super dealloc]; } @end </code></pre> <h1>RootViewController.h</h1> <pre><code>#import &lt;UIKit/UIKit.h&gt; @class SubCategory; @interface RootViewController : UITableViewController &lt;UITableViewDelegate, UITableViewDataSource&gt; { SubCategory *subCategories; } @property (nonatomic, retain) SubCategory *subCategories; @end </code></pre> <h1>RootViewController.m</h1> <pre><code>#import "RootViewController.h" #import "SubCategory.h" #import "OffersViewController.h" @implementation RootViewController @synthesize subCategories; - (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; self.title = @"Sub Categories"; NSString *jsonArray = [NSString stringWithFormat:@"{ " @" \"sub-categories\": { " @" \"parent\": \"1\", " @" \"count\": \"2\", " @" \"sub-category\": [{ " @" \"id\": \"1\", " @" \"name\": \"Buy\" " @" }, " @" { " @" \"id\": \"2\", " @" \"name\": \"Sell\" " @" }] " @" } " @" }"]; SubCategory* categories = [[SubCategory alloc] init]; [categories parseJSON:jsonArray]; subCategories = categories; } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { return [subCategories.subCategoryName count]; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewController * offers = [[OffersViewController alloc] initWithNibName:@"OffersView" bundle:nil]; //offers.title = [NSString stringWithFormat:@"%@", [subCategories.subCategoryName objectAtIndex:indexPath.row]]; [self.navigationController pushViewController:offers animated:YES]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cachedCell"]; if (cell == nil) { cell = [[[UITableViewCell alloc] init] autorelease]; } cell.textLabel.text = [subCategories.subCategoryName objectAtIndex:indexPath.row]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; } @end </code></pre> <h1>OffersViewController.h</h1> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface OffersViewController : UITableViewController &lt;UITableViewDelegate, UITableViewDataSource&gt;{ } @end </code></pre> <h1>OffersViewController.m</h1> <pre><code>#import "OffersViewController.h" @implementation OffersViewController - (id)initWithStyle:(UITableViewStyle)style { self = [super initWithStyle:style]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; } - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 0; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. return 1; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"cachedCell"]; if (cell == nil) { cell = [[[UITableViewCell alloc] init] autorelease]; } cell.textLabel.text = @"niki"; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; } </code></pre> <p>The exception is:</p> <pre><code>Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: '-[UIViewController _loadViewFromNibNamed:bundle:] loaded the "OffersView" nib but the view outlet was not set.' </code></pre>
 

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