How to autoload the first click of a button in iOS?

Question

I have a button created using the .xib file. I want the app to autoload the first question (meaning the ViewController to autoload the "showQuestion" method when the app first started. I am a beginner. How do you do it? Please help! Thanks!

ViewController.m

- (instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{ //call the init method implemented by the superclass self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]; self.questions = @[@"What is your name?", @"How old are you?", @"Where are you from?"]; return self; } - (IBAction)showQuestion:(id)sender{ self.questionLabel.text = self.questions[currentIndex]; }

the AppDelegate.m file

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. ViewController *vc = [[ViewController alloc] init]; self.window.rootViewController = vc; return YES; }

Iowa15 · Accepted Answer · 2015-08-29 00:34:02Z

In your -viewDidLoad method of the view controller, just manually call the -showQuestion method.

i.e. in your ViewController.m, add this:

- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. [self showQuestion:nil]; }

NeverHopeless · Accepted Answer · 2015-08-29 00:34:21Z

Try like this:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. ViewController *vc = [[ViewController alloc] init]; self.window.rootViewController = vc; // Autoload first question [vc showQuestion:nil]; return YES; }

ViewController.h

- (IBAction)showQuestion:(id)sender;

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