How to use Swipe Gesture Recognizer iPhone ?

ViewController.h

@interface CoRoViewController : UIViewController<UIGestureRecognizerDelegate>

{

    UISwipeGestureRecognizer *gesture;

}

ViewController.m

-(void)viewDidLoad

{

 /* SWIPE GESTURE CODE */

    

    gesture = [[UISwipeGestureRecognizer alloc]init];

    [gesture setDirection:UISwipeGestureRecognizerDirectionLeft]; // you can use right or left ;)

    [gesture addTarget:self action:@selector(methodcalled)];

    

    gesture.delegate  = self;

    [self.view addGestureRecognizer:gesture];

}

-(void)methodcalled

{

      // Code you want to perform

}

Have fun :)

How to hide Navigation Bar ?

- (void)viewWillAppear:(BOOL)animated

{
    [self.navigationController setNavigationBarHidden:YES animated:animated];
    [super viewWillAppear:animated];
}

- (void)viewWillDisappear:(BOOL)animated
{
    [self.navigationController setNavigationBarHidden:NO animated:animated];
    [super viewWillDisappear:animated];
}

How to show Hidden Files on Mac ?

Open Terminal and write command :

defaults write com.apple.Finder AppleShowAllFiles TRUE
killall Finder

To hide the files once again :

defaults write com.apple.Finder AppleShowAllFiles FALSE
killall Finder