CODEWITHSUNDEEP
iphoneobjective-cxcode
Shyta
Shyta

Reputation: 21

iPhone View Sliding effect - Beginner

What is the event in iPhone development to write code to a slide left and slide right operation.

As in when you slide the view of your phone, you go into another view. What is the event that i should write my code ?

Upvotes: 1

Views: 2774

Answers (2)

FeifanZ
FeifanZ

Reputation: 16316

Darvids0n covered a gesture to slide the view out. I interpreted the question as an animation to slide the view out, in which case you'll want UIView's transitionFromView:toView:duration:options:completion: class method:

[UIView transitionFromView:view1 toView:view2 duration:1.0 options:(UIViewAnimationOptionCurveEaseInOut | UIViewAnimationOptionTransitionFlipFromLeft) completion:NULL];

This actually gives you a curl. If you want a slide, you'll have to code a custom animation. Check out UIView's documentation and especially the 'animateWithDuration:animations:' class method.

Upvotes: 1

user244343
user244343

Reputation:

The event you are looking to catch is called a swipe. Apple provides a UISwipeGestureRecognizer class to handle this for you. Implementation advice can be found in the Gesture Recognizers section of the Event Handling Guide for iOS.

Briefly, you create the recognizer:

UISwipeGestureRecognizer *swipeGestureRecognizer =
[[[UISwipeGestureRecognizer alloc]
  initWithTarget:self action:@selector(swipe:)] autorelease];

Then set how many fingers the swipe is, and what direction it needs to be in:

swipeGestureRecognizer.numberOfTouchesRequired = 2; // default is 1
// allow swiping either left or right, default is right only
swipeGestureRecognizer.direction = UISwipeGestureRecognizerDirectionLeft |
                                   UISwipeGestureRecognizerDirectionRight;

And then add it to your view:

[self.view addGestureRecognizer:swipeGestureRecognizer];

When the user swipes, your swipe: method will get called.

Upvotes: 1

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