trying to assign "name" which is the textInput to arg1.

#import <SpringBoard/SpringBoard.h>
#import <CoreTelephony/CTCarrier.h>

NSString *name;

-(void)applicationDidFinishLaunching:(id)application {

UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Welcome"
        message:@"Enter Carrier Name"
        delegate:self
        cancelButtonTitle:@"Cancel"
        otherButtonTitles:nil];
				alert.alertViewStyle = UIAlertViewStylePlainTextInput;
		[alert show];
}

- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (buttonIndex == 1) {
        name = [alertView textFieldAtIndex:0].text;
    }
}

- (void)setCarrierName:(id)arg1{
  arg1 = [self name];
}