My UIScrollView doesn't work with auto-layout in ios6

Question

I have put an UIScrollView in my UIViewController into my storyboard. When I use this code:

- (void)viewDidLoad
{
    [super viewDidLoad];

    [_scrollview          


        

Answer 1

Seems that you are missing some basic stuff about UIScrollView in autolayout environment. Read carefully ios 6.0 release notes

Your code should look like:

- (void)viewDidLoad
{
    [super viewDidLoad];

    CGRect selfBounds = self.view.bounds;
    CGFloat width = CGRectGetWidth(self.view.bounds);
    CGFloat height = CGRectGetHeight(self.view.bounds);
    [_scrollview setPagingEnabled:YES];

    UIView* view1 = [[UIView alloc] initWithFrame:selfBounds];
    [view1 setTranslatesAutoresizingMaskIntoConstraints:NO];
    [view1 setBackgroundColor:[UIColor redColor]];
    [_scrollview addSubview:view1];

    UIView* view2 = [[UIView alloc]initWithFrame:CGRectOffset(selfBounds, width, 0)];
    [view2 setTranslatesAutoresizingMaskIntoConstraints:NO];
    view2.backgroundColor = [UIColor greenColor];
    [_scrollview addSubview:view2];

    [_scrollview addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"|[view1(width)][view2(width)]|" options:0 metrics:@{@"width":@(width)} views:NSDictionaryOfVariableBindings(view1,view2)]];
    [_scrollview addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[view1(height)]|" options:0 metrics:@{@"height":@(height)} views:NSDictionaryOfVariableBindings(view1)]];
    [_scrollview addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[view2(height)]|" options:0 metrics:@{@"height":@(height)} views:NSDictionaryOfVariableBindings(view2)]];
}