El idée clé que vous devez définir le cadre ou le centre de la vue de self.navigationController.view . Il y a deux événements que vous devez gérer. (1) barButtonItem press . (2) geste de panique à cause du swiping.
Vous pouvez envoyer le contrôleur de vue en arrière-plan comme ceci :
[self.view sendSubviewToBack:menuViewController.view];
- (void)viewDidLoad
{
[super viewDidLoad];
UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(buttonPressed:)];
UIPanGestureRecognizer *panGestureRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(handlePan:)];
[self.navigationController.view addGestureRecognizer:panGestureRecognizer];
self.navigationItem.leftBarButtonItem = barButtonItem;
}
- (void)buttonPressed:(id)sender {
CGRect destination = self.navigationController.view.frame;
if (destination.origin.x > 0) {
destination.origin.x = 0;
} else {
destination.origin.x = 320;
}
[UIView animateWithDuration:0.25 animations:^{
self.navigationController.view.frame = destination;
}];
}
- (void)handlePan:(UIPanGestureRecognizer *)recognizer
{
static CGPoint originalCenter;
if (recognizer.state == UIGestureRecognizerStateBegan)
{
originalCenter = recognizer.view.center;
} else if (recognizer.state == UIGestureRecognizerStateChanged)
{
CGPoint translation = [recognizer translationInView:self.view];
recognizer.view.center = CGPointMake(originalCenter.x + translation.x, originalCenter.y);
}
else if (recognizer.state == UIGestureRecognizerStateEnded || recognizer.state == UIGestureRecognizerStateCancelled || recognizer.state == UIGestureRecognizerStateFailed)
{
if (recognizer.view.frame.origin.x < 160) {
[UIView animateWithDuration:0.25 animations:^{
recognizer.view.center = CGPointMake(384, 487.5);
}];
} else {
[UIView animateWithDuration:0.25 animations:^{
recognizer.view.center = CGPointMake(384 + 320, 487.5);
}];
}
}
}
