CODEWITHSUNDEEP
iphoneobjective-cxcodelabelnslog
myles
myles

Reputation: 75

Why does my code show the NSLog but not change the label text?

Why does my code show the NSLog but not change the label text? I'm trying to show the appDelegate.times but it's not working.

-(void)Dothis
{
    //retain
    appDelegate = [[[UIApplication sharedApplication] delegate] retain];

    //display in label
    differenceLabel.text = [[NSString alloc] initWithFormat:@"%.3f", appDelegate.times];

    //display in console
    NSLog(@"Computed time wasrggsdfgd: %@", appDelegate.times);
}

Upvotes: 1

Views: 831

Answers (2)

jlink
jlink

Reputation: 692

You need to do it like this :

[differenceLabel setText:[NSString stringWithFormat:@"%@", appDelegate.times]];

You really don't need to instantiate by a new NSString object by yourself for that... And moreover then you forgot to release your NSString object...

And according to your log , it seems that "appDelegate.times" is actually not a float (%f...)

Upvotes: 1

Radix
Radix

Reputation: 3657

This should do the trick:

here's my function which sets the label text and it looks like this

-(void)seeValue
{
appdelegate = (stackoverflowQueriesAppDelegate*)[[UIApplication sharedApplication]delegate];
lbl.text = [NSString stringWithFormat:@"%.f",appdelegate.f];    
}

I am assigning a float value as the text of my label lbl and here's a view of the code present inside my appdelegate file

@interface stackoverflowQueriesAppDelegate : NSObject  {

    float f;  
}
@property (nonatomic,assign) float f;
@property (nonatomic, retain) IBOutlet UIWindow *window;
@end

and here's a view to my appdelegate.m file

@implementation stackoverflowQueriesAppDelegate
@synthesize window=_window,f;

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    f= 225.32;
    myview *obj = [[myview alloc]init];
    [self.window addSubview:obj.view];
    [self.window makeKeyAndVisible];
    return YES;
}

hope this helps

Upvotes: 0

Related Questions