iOS increment with button...

[beautifulblood]

So I started this program thinking it was going to be really easy. Basically my idea was to make an app that just kept track of a baseball team's score, nothing fancy just trying to start understanding objective-c/iphone development , there is one button you click on it and the number in the text field increments by one.

PitchCounter.h

#import <UIKit/UIKit.h>

@interface PitchCounterViewController : UIViewController 
{
	IBOutlet UITextField *homeScore;
}

@property (nonatomic, retain) IBOutlet UITextField *homeScore;

- (IBAction) homeScoreButton;

@end

PitchCounter.m

#import "PitchCounterViewController.h"

@implementation PitchCounterViewController

@synthesize homeScore;

- (IBAction) homeScoreButton
{
	int i = 0;
	NSString *homeScoreCounter = [[NSString alloc] initWithFormat:@"%i", i];
	homeScore.text = homeScoreCounter;
	i++;
	NSLog(@"%@", homeScoreCounter);
}


/*
// The designated initializer. Override to perform setup that is required before the view is loaded.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
    }
    return self;
}
*/

/*
// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
}
*/


/*
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
    [super viewDidLoad];
}
*/


/*
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    return (interfaceOrientation == UIInterfaceOrientationPortrait);
}
*/

- (void)didReceiveMemoryWarning {
	// Releases the view if it doesn't have a superview.
    [super didReceiveMemoryWarning];
	
	// Release any cached data, images, etc that aren't in use.
}

- (void)viewDidUnload {
	// Release any retained subviews of the main view.
	// e.g. self.myOutlet = nil;
}


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

@end

I thought you could set a variable and then increase it by one but apparently not. Any help would be appreciated thanks.

 

[dejo]

I thought you could set a variable and then increase it by one but apparently not.

You can. It's just that every time you call homeScoreButton, you're setting your i back to 0. Maybe try making i an instance variable.

 

[beautifulblood]

WOW, worked perfectly don't know why that didn't even cross my mind.

One more question, when you are using IBAction on a button you are basically saying every time I hit this button I want to run this piece of code correct?

Thanx again for the help.

 

[dejo]

One more question, when you are using IBAction on a button you are basically saying every time I hit this button I want to run this piece of code correct?

In a ways, yes. You're saying, assuming you have the button configured in a standard way, that every time your button receives the Touch Up Inside event, call the method you have connected for that. Realize, though, that there are a number of other events to which you can respond and trigger code.

 

[beautifulblood]

Gotcha, thanks