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iOS Build a Self-Destructing Message iPhone App Designing and Starting the App Adding Login and Sign Up Screens

Challenge task 1 of 2In the view controller below about songs, tapping on a button to add a new song needs to perform

In the view controller below about songs, tapping on a button to add a new song needs to perform a segue to another view controller. The button is wired up to an IBAction with the signature '- (void)addSong'. Start by defining this method.

import "MusicViewController.h"

@implementation MusicViewController

  • (void)viewDidLoad { [super viewDidLoad]; [self addSong]; // I add this line to add a song

}

@end

I can not recognize two things 1)The button is wired up to an IBAction with the signature '- (void)addSong'. 2)Start by defining this method.

How should I go to think of them

3 Answers

1)The button is wired up to an IBAction with the signature '- (void)addSong'.

it means that he connected a Button (when touched) to the code using assistant editor (tuxedo guy) and name it "addSong"

2)Start by defining this method

it means you should put the method "- (void)addSong" in the implementation file

I wrote my answer as below ,but no work

  • (IBAction)addSong:(UIButton *)sender { }

The methods in .h file must be exactly as the methods on the .m file

So all you have to do is copy the method to the implantation file

Write -(void)addSong{}