The iOS app crashed right after clicking the button on a UIAlertview

Question

I tried to dial a number with the phone app after the user click on a button on a UIAlertview. The phone app did open, but the original app crashed right after clicking the butt

Answer 1

Your crash is being caused by poor memory management. The primary issue is calling [self release]. It's a pretty rare case that this is appropriate.

Another issue is your attempt to check the message.tag right after setting message to nil. Calling the tag property on a nil object will always result in a value of 0.

Your dealloc method is all wrong. Don't call [self release]. Don't call [message release] since you autoreleased it when you showed it.

BTW - never use a tag of 0. This is the default. If you want to use the tag, always use a non-zero value so you can distinguish the value from the default.