iOS 11 wrong working

[senosora]

First thanks for your code.

iOS 11 running but not completely...

View 1 ok (swipe, next button all ok)
View 2 ok (swipe, next button all ok)
View 2 to View 3 can't move next view

[imougy]

Unfortunately, useless in iOS 11 because of this issue.

[ainsky]

solution :

WalkThroughViewcontroller.m

• (void)addViewController:(UIViewController *)vc
  {

  [self.controllers addObject:vc];

  [vc.view setTranslatesAutoresizingMaskIntoConstraints:NO];
  [self.scrollview addSubview:vc.view];

  NSLayoutFormatOptions options = 0;

  NSDictionary *metricDict = @{@"w": @(SCREEN_WIDTH),
  @"h": @(SCREEN_HEIGHT)};

  NSArray *constraints = [NSLayoutConstraint constraintsWithVisualFormat:@"V:[view(==container)]"
  options:options
  metrics:metricDict
  views:@{@"view":vc.view, @"container":self.scrollview}];
  [self.scrollview addConstraints:constraints];

  constraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[view(==container)]"
  options:options
  metrics:metricDict
  views:@{@"view":vc.view, @"container":self.scrollview}];

  [self.scrollview addConstraints:constraints];

  constraints = [NSLayoutConstraint constraintsWithVisualFormat:@"V:|-0-[view]|"
  options:options
  metrics:metricDict
  views:@{@"view":vc.view, @"container":self.scrollview}];

  [self.scrollview addConstraints:constraints];

  if ([self.controllers count] == 1) {
  constraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|-0-[view]"
  options:options
  metrics:metricDict
  views:@{@"view":vc.view, @"container":self.scrollview}];
  [self.scrollview addConstraints:constraints];
  } else {
  UIViewController *previousVC = [self.controllers objectAtIndex:([self.controllers count] - 2) ];

    UIView *previousView = previousVC.view;
    
    constraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[previousView]-0-[view]"
                                                          options:0
                                                          metrics:nil
                                                            views:@{@"previousView": previousView,
                                                                    @"view": vc.view}];
    [self.scrollview addConstraints:constraints];
    
    
    NSArray *cst = lastViewConstraint;
    
    NSLog(@"%@", cst);
    
    if (cst) {
        [self.scrollview removeConstraints:cst];
    }
    
    lastViewConstraint = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[view]-0-|" options:0 metrics:nil views:@{@"view": vc.view}];
    [self.scrollview addConstraints:lastViewConstraint];
  

  }
  }

[imougy]

Works like a charm.