Delegating UIAlertView to another class / file? Not working? - objective-c

Question

so I'm new to iOS development and I'm trying to delegate the button click event to another class. Whenever I click a button on the alert, the app crashes and I get an error saying Thread_1 EXC_BAD_ACCESS.
This is my code.
// theDelegateTester.h
#import <UIKit/UIKit.h>
#interface theDelegateTester : UIResponder <UIAlertViewDelegate>
- (void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;
#end
Implementation..
// theDelegateTester.m
#import "theDelegateTester.h"
#implementation theDelegateTester
- (void) alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
NSLog(#"Delegated");
}
#end
And here's the implementation for my view file..
#import "appleTutorialViewController.h"
#import "theDelegateTester.h"
#interface appleTutorialViewController ()
- (IBAction)tapReceived:(id)sender;
#end
#implementation appleTutorialViewController
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
}
- (void)viewDidUnload
{
// Release any retained subviews of the main view.
}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown);
}
- (IBAction)tapReceived:(id)sender {
theDelegateTester *newTester = [[theDelegateTester alloc] init];
UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:#"Alert!" message:#"This is a delegated alert" delegate:newTester cancelButtonTitle:#"Close" otherButtonTitles:#"Cool!", nil];
[myAlert show];
}
#end

Answer 1

First of all, you should always start your class names with a capital letter, so you can differentiate between classes and instances or methods easily.
And you probably leak the delegate class. You should declare a strong/retained property TheDelegateTester *myDelegate in your view controller. Then in tapReceived: something like this:
- (IBAction)tapReceived:(id)sender {
if (!self.myDelegate) {
TheDelegateTester *del = [[TheDelegateTester alloc] init];
self.myDelegate = del;
[del release];
}
UIAlertView *myAlert = [[UIAlertView alloc] initWithTitle:#"Alert!" message:#"This is a delegated alert" delegate:newTester cancelButtonTitle:#"Close" otherButtonTitles:#"Cool!", nil];
[myAlert show];
[myAlert release];
}