iOS Application Development Tutorial 5: Simple Calculator Application

Create a simple addition and subtraction calculator app!

[mikecritchley]

Double thumbs up! Works like a charm. Thanks. That Tab feature in the attributes inspector is a HUGELY cool time saver for view objects calling the same IBAction. I spruced mine up with a background image, and I messed with the .m to make it able to keep adding / subtracting using the output label after =. Feeling pretty freakin' proud of myself haha Thanks for another awesome tutorial! 

[shiyuzhang]

One thing I figured out:
secondEntry = [NSString tag ];
// shoud be secondEntry there.
That was the problem, not because the buttons were too close. BTW, your IOS series is awesome, thanks.

[sreenubilla]

Thank you very much.
such a good explanation

[langer]

I don't have a viewcontroller.h file to edit??

[SphyxGreifing]

do i need to be a registered apple developer to develop an app?

[alfredmanoj]

the application s superb and interesting ..guyscheck out this app