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POApplication state preservation and restoration without using storyboard?
 

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  1. POApplication state preservation and restoration without using storyboard?
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    <p>I have added <code>uinavigationcontroller</code> in <strong>AppDelegate.m</strong> like this</p> <pre><code> self.viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil]; UINavigationController *nav = [[UINavigationController alloc]initWithRootViewController:self.viewController]; nav.restorationIdentifier = @"nav1"; self.window.rootViewController = nav; </code></pre> <p>My <strong>ViewController.m</strong> look like this</p> <pre><code>- (void)viewDidLoad { [super viewDidLoad]; self.restorationIdentifier = @"secondViewController"; // Do any additional setup after loading the view, typically from a nib. } -(IBAction)click:(id)sender { secondViewController *svc = [[secondViewController alloc]initWithNibName:@"secondViewController" bundle:nil]; svc.restorationIdentifier = @"secondViewController"; svc.restorationClass = [self class]; [self.navigationController pushViewController:svc animated:YES]; } </code></pre> <p>My <strong>secondViewController.m</strong> like</p> <pre><code>+(UIViewController *)viewControllerWithRestorationIdentifierPath:(NSArray *)identifierComponents coder:(NSCoder *)coder { NSLog(@"viewControllerWithRestorationIdentifierPath"); UIViewController * myViewController = [[secondViewController alloc] initWithNibName:@"secondViewController" bundle:nil]; return myViewController; } - (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; if (self) { // Custom initialization } return self; } - (void)viewDidLoad { [super viewDidLoad]; label.text = @"sdfkheiowodhnskjfdgewluri3y2oejdscndjshfiledhdsfhewilufhyeows"; // Do any additional setup after loading the view from its nib. } -(void)encodeRestorableStateWithCoder:(NSCoder *)coder { NSLog(@"encodeRestorableStateWithCoder"); [coder encodeObject:label.text forKey:@"UnsavedText"]; [super encodeRestorableStateWithCoder:coder]; } -(void)decodeRestorableStateWithCoder:(NSCoder *)coder { NSLog(@"decodeRestorableStateWithCoder"); [super decodeRestorableStateWithCoder:coder]; label.text = [coder decodeObjectForKey:@"UnsavedText"]; } </code></pre> <p><strong>In Output</strong></p> <p>I get encodeRestorableStateWithCoder but after this when I press home button and then again run application my application state not present secondViewController and decodeRestorableStateWithCoder not get called.</p> <p>I dont know where I'm doing wrong?</p>
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    1. CONow i'm getting all logs in output window by adding self.restorationIdentifier = @"secondViewController"; self.restorationClass = [self class]; but navigationcontroller always shows first view ... any help please.
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      1. POApplication state preservation and restoration without using storyboard?
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