Question

This is most likely a very obvious answer, but I am just not seeing it. I want to open the phone application when I click a button.

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://???????"]];

That line of code should do it. The problem is, depending on what happens in the app, I want it to dial a different number. I made a string variable, and I want to put it into the space with the ???

Something like:

[[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"tel://(myPhoneNumberString)"]];

Any ideas?

Thanks

Answer 1

Take a look at the NSString documentation.

Something like that will work:

[ NSURL URLWithString: [ NSString stringWithFormat: @"tel://%@", myPhoneNumberStringVar ]

String format is basically the same as in the printf C function, with the additional %@ format, used to print object representations.