CODEWITHSUNDEEP
iosxcodexcode4window
user1103460
user1103460

Reputation:

Xcode: Label making error

    - (void)viewDidLoad
{
    CGRect frame = CGRectMake(20, 45, 140, 21);
    UILabel *label = [[UILabel alloc] initWithFrame:frame];

    [window addSubview:label];
    [label setText:@"Hello world"];
    [label release];

    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}

The error is: Use of underclared identifier 'window'

Upvotes: 1

Views: 157

Answers (1)

Lucien
Lucien

Reputation: 8403

You could set the tag property of UIImageView of each one of the letters and check against them on touchesMoved.

- (void)touchesMoved:(NSSet*)touches withEvent: (UIEvent*)event{

    UITouch *touch = [[event allTouches] anyObject];
    CGPoint location = [touch locationInView:touch.view.superview];

    switch (touch.view.tag) {
        case 0:
            a.center=location;
            break;
        case 1:
            b.center=location;
            break;
        case 3:
            c.center=location;
            break;
    }
}

Edit

Using @beryllium 's comment:

- (void)touchesMoved:(NSSet*)touches withEvent: (UIEvent*)event{

    UITouch *touch = [[event allTouches] anyObject];
    CGPoint location = [touch locationInView:touch.view.superview];
    touch.view.center = location;
}

Also note that you should get the images' superview location, and not from the image itself.

Upvotes: 1

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