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POObjective-c Novice - Needs help with UIViews
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  1. POObjective-c Novice - Needs help with UIViews
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    copied!<p>Im new to iphone development and after lots of reading on it im still trying to figure out how UIViews operate properly. I have been playing about with it and i this is where i am at so far:</p> <p>I have created a new xcode project using the view-based application. I have my MMAppViewController classes and i created a new UIViewController subclass called "Level1View".</p> <p>There is a button titled "Level 1" that takes me to the "Level1View" viewController. In this viewController there is there is a "next" button, a "main menu" button (that returns to MMAppViewController) and there is a label, currently titled "Level 1". </p> <p>My problem is that the code i have used to change the title of label does not work! Does anyone know why this is? Here is my code:</p> <pre><code>@class MMAppViewController; @interface MMAppAppDelegate : NSObject &lt;UIApplicationDelegate&gt; { UIWindow *window; MMAppViewController *viewController; } @property (nonatomic, retain) IBOutlet UIWindow *window; @property (nonatomic, retain) IBOutlet MMAppViewController *viewController; @end </code></pre> <p>and</p> <pre><code>@implementation MMAppViewController -(IBAction)pushLevel1{ Level1View *level1View = [[Level1View alloc] initWithNibName:nil bundle:nil]; [self presentModalViewController:level1View animated:YES]; } ... </code></pre> <p>and </p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface Level1View : UIViewController { IBOutlet UILabel *labelTitle; } -(IBAction)pushBack; -(IBAction)pushNext; @end </code></pre> <p>and</p> <pre><code> #import "Level1View.h" #import "MMAppViewController.h" @implementation Level1View -(IBAction)pushBack{ MMAppViewController *MainView = [[MMAppViewController alloc] initWithNibName:nil bundle:nil]; [self presentModalViewController:MainView animated:YES]; } -(IBAction)pushNext{ [labelTitle setText:(@"Thanks for playing :)")]; } - (void)didReceiveMemoryWarning { ... </code></pre> <p>Currently the app runs but the label wont change when i hit the "next" button. Can anyone help?</p>
 

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