Can't get view to load after following iPhone SDK Final tutorial

[chuck]

Hi,

I recently watched the Hello World Final SDK tutorial and I've been using that and the HelloWorld app from Apple as examples. I have the basic window-based app set up and it initializes, but I don't think the view loads. I imagine this is something really stupid that I just need to learn and if someone could help me get over this initial hump, I'd greatly appreciate it. Right now, I just want an app where I type something in the search bar and it appears in the text view below which I'll use as a foundation to make something really cool.

Here is my code:

MyAppDelegate.h (unmodified from template)

MyAppDelegate.m

#import "MyAppDelegate.h"

@implementation MyAppDelegate

@synthesize window;

- (void)applicationDidFinishLaunching:(UIApplication *)application {	
	NSLog( @"Initialized." );

	// Override point for customization after app launch	
    [window makeKeyAndVisible];
}

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

@end

MainView.h

#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>

@interface MainView : UIView <UISearchBarDelegate> {
    IBOutlet UITextView *mainText;
    IBOutlet UISearchBar *searchBar;
}

@property (nonatomic, retain) UITextView *mainText;
@property (nonatomic, retain) UISearchBar *searchBar;

@end

MainView.m

#import "MainView.h"

@implementation MainView

@synthesize mainText;
@synthesize searchBar;

- (void)viewDidLoad {
	NSLog( @"At least the delegate loads." );
	searchBar.delegate = self;
}

- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText {
    // When the user presses return, take focus away from the text field so that the keyboard is dismissed.
	[self resignFirstResponder];
	// Invoke the method that changes the greeting.
	
	mainText.text = searchText;
	NSLog( @"This should have been set.");
}

- (void)dealloc {
	[string release];
	[mainText release];
	[searchBar release];
	[super dealloc];
}

@end

In the console I only see the following message:

[Session started at 2008-08-06 22:29:43 +0200.]
2008-08-06 22:29:45.465 My[879:20b] Initialized.

I get no errors. I know it's initializing, but it's not running ViewDidLoad. Perhaps I have to specifically call the view to load? Anyway, as I said, if anyone could help, I'd greatly appreciate it. I'm using iPhone SDK Final. Thanks in advance!

[chuck]

I'm still banging my head against the wall on this. I recently added the following code to MainView.m:

- (BOOL)respondsToSelector:(SEL)sel {
    NSLog(@"Queried about %@", NSStringFromSelector(sel));
    return [super respondsToSelector:sel];
}

and now I get the following on the console, so it's apparently at least recognizing this class:

[Session started at 2008-08-07 10:19:28 +0200.]
2008-08-07 10:19:36.674 My[940:20b] Queried about actionForLayer:forKey:
2008-08-07 10:19:36.675 My[940:20b] Queried about displayLayer:
2008-08-07 10:19:36.677 My[940:20b] Queried about drawLayer:inContext:
2008-08-07 10:19:36.678 My[940:20b] Queried about _layoutSublayersOfLayer:
2008-08-07 10:19:36.679 My[940:20b] Queried about animationDidStart:
2008-08-07 10:19:36.679 My[940:20b] Queried about animationDidStop:finished:
2008-08-07 10:19:37.071 My[940:20b] Initialized.

If anyone could give me any help, I'd be very grateful. Thanks!

[Bucky]

I haven't looked at the tutorial, but do you need this in the applicationDidFinishLaunching: method?

MainView *mainView = [[MainView alloc] init];

[window addSubView:mainView];

I say this because the viewDidLoad: method obviously hasn't run, since the console did not have "At least the delegate loads"

[chuck]

Thanks for your answer. However, when I try to build, I get the following warning:

'UIWindow' may not respond to '-addSubView:'

When I try to run, I see the following cryptic message in the console:

2008-08-07 17:21:43.611 My[4016:20b] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '*** -[UIWindow addSubView:]: unrecognized selector sent to instance 0x458200'
2008-08-07 17:21:43.613 My[4016:20b] Stack: (
    2530709835,
    2459984123,
    2530739018,
    2530732364,
    2530732562,
    9514,
    816174362,
    816210018,
    2472847710,
    2530212677,
    2530213112,
    829005112,
    829005309,
    816175835,
    816221412,
    9240,
    9094
)

The thing I can't figure out is that I can indeed see the view fields in the iPhone Simulator, it's just the search field doesn't do anything nor does viewDidLoad even run. I'm guessing the Interface Builder already set up some kind of relationship from the window to the MainView, but I don't know how you would access it. Any ideas?

[chuck]

Update: I changed viewDidLoad to didMoveToWindow and now "At least the delegate loads" appears on the console, although it still doesn't work...

[chuck]

Final Update for Today: I believe I need to set up the project anew for a View-based application instead of a Window-based application, so I can get a View Controller. I'm pretty sure how to do it now, but I'm quite too tired tonight to keep on. I'll update again tomorrow with my progress.

[jag]

Hi,

I'm not sure if you figured this out or not (2 months later) but, I found this thread searching for the same error message. Turns out it's just a typo, it should be addSubview (with a lowercase v) instead of addSubView. I guess subview is one word, not two...

I thought it might be helpful to have this up here in case anyone else stumbles across this with google...

-Jeremy

[airjordan12345]

Let us know how it went.

The project type you select is essential, as there is a big difference between them.

Also, even though your code might be written correctly, you also need to make sure your connections in Interface Builder are set up correctly.

Try it out tomorrow with the View Controller, as a view-based application.

If that doesnt work then go ahead and share your project so I can see what is wrong.

Cheers,
Felipe.

[Cardinal]

Originally Posted by jag

Hi,

I'm not sure if you figured this out or not (2 months later) but, I found this thread searching for the same error message. Turns out it's just a typo, it should be addSubview (with a lowercase v) instead of addSubView. I guess subview is one word, not two...

I thought it might be helpful to have this up here in case anyone else stumbles across this with google...

-Jeremy

Thank you for posting this. I wasted about an hour trying to figure this out before I searched this forum.