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    <p>Regarding the issue you are facing, as an immediate fix, instead of keeping 'alert' as a local object, try declaring it as a strong property of the class.</p> <p>But better keep 'customAlert' as subclass of 'UIAlertView' instead of having 'UIAlertView' as a property of customAlert.</p> <p>An example of a custom alert class (Haven't added much comments. Code is simple and self descriptive).</p> <p><strong>CustomAlert.h</strong></p> <pre><code> #import &lt;UIKit/UIKit.h&gt; @protocol customAlertDelegate&lt;NSObject&gt; - (void)pressedOnYES; - (void)pressedNO; @end @interface CustomAlert : UIAlertView - (CustomAlert *)initWithDelegate:(id)delegate; @property (weak) id &lt;customAlertDelegate&gt; delegate1; @end </code></pre> <p><strong>CustomAlert.m</strong></p> <pre><code>#import "CustomAlert.h" @implementation CustomAlert @synthesize delegate1; - (id)initWithFrame:(CGRect)frame { self = [super initWithFrame:frame]; if (self) { // Initialization code } return self; } - (CustomAlert *)initWithDelegate:(id)delegate { self = [super initWithTitle:@"Title" message:@"Message" delegate:self cancelButtonTitle:@"No" otherButtonTitles:@"Yes", nil]; if (self) { //Assigning an object for customAlertDelegate self.delegate1 = delegate; } return self; } //Method called when a button clicked on alert view - (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex { if (buttonIndex) { [self.delegate1 pressedOnYES]; } else { [self.delegate1 pressedNO]; } } @end </code></pre> <p>Your View controller with delegate methods</p> <p><em>ViewController.h</em></p> <pre><code>#import &lt;UIKit/UIKit.h&gt; #import "CustomAlert.h" @interface ViewController : UIViewController &lt;customAlertDelegate&gt; @end </code></pre> <p><em>ViewController.m</em></p> <pre><code>#import "ViewController.h" @implementation ViewController - (IBAction)pressBtn:(id)sender { CustomAlert *alert=[[CustomAlert alloc] initWithDelegate:self] ; [alert show]; } - (void)pressedOnYES { //write code for yes } - (void)pressedNO { //write code for No } @end </code></pre>
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    1. COso customClass : UIAlertView.. I will try
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    2. COok. Did the immediate fix work(alert - strong property)?
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    3. COno, it's not about UIAlertView, the reason is - customAlert instance is deallocated. If customAlert instance is retained by someone else (f.e property "strong") sure it works
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