Question

我正在使用一个使用scrollViewController的应用程序，因为我需要有一个垂直和水平滚动，所以它加载NIB的嵌套。

这一切都运行正常但是当我将UIPicker添加到我的一个嵌套的笔尖中时它不会滚动，我已经读过这可以通过在UIScrollView中禁用滚动来轻松修复但是我不是100％确定如何从另一堂课。

scrollViewController.h

@interface scrollViewController : UIViewController <UIScrollViewDelegate>{

    UIScrollView* scrollView;
    UIPageControl* pageControl;

    UIScrollView *vScrollView;
    UIScrollView *hScrollView;

    BOOL pageControlBeingUsed;
}

@property (nonatomic, retain) IBOutlet UIScrollView* scrollView;
@property (nonatomic, retain) IBOutlet UIPageControl* pageControl;

@property (nonatomic, retain) UIScrollView *vScrollView;
@property (nonatomic, retain) UIScrollView *hScrollView;

- (IBAction)changePage;

@end

scrollViewController.m

- (void)viewDidLoad
{
    [super viewDidLoad];

    CGRect bounds = self.view.bounds;

    // main guy is a horizontal scroller
    hScrollView = [[UIScrollView alloc] initWithFrame:bounds];
    hScrollView.contentSize = CGSizeMake(bounds.size.width * 2, bounds.size.height);
    hScrollView.delegate = self;
    [self.view addSubview:hScrollView];

    // the horizontal scroller contains a vertical scroller
    vScrollView = [[UIScrollView alloc] initWithFrame:bounds];
    vScrollView.contentSize = CGSizeMake(bounds.size.width, bounds.size.height * 2);
    vScrollView.delegate = self;
    [hScrollView addSubview:vScrollView];


    2ndView *view2 = [[2ndView alloc] initWithNibName:@"2ndView" bundle:nil];
    [vScrollView addSubview:view2.view];
    vScrollView.contentOffset = CGPointMake(0, bounds.size.height);

    mainView *vc = [[mainView alloc] initWithNibName:@"mainView" bundle:nil];
    vc.view.frame = CGRectOffset(bounds, 0, bounds.size.height); 
    [vScrollView addSubview:vc.view];


    // 3rd View
    ValidatorView *vc3 = [[ValidatorView alloc] initWithNibName:@"ValidatorView" bundle:nil];
    vc3.view.frame = CGRectOffset(bounds, bounds.size.width, 0); 

    [hScrollView addSubview:vc3.view]; 

    // enable paging in both directions
    hScrollView.pagingEnabled = TRUE;
    vScrollView.pagingEnabled = TRUE;

    hScrollView.showsHorizontalScrollIndicator = FALSE;
    vScrollView.showsVerticalScrollIndicator = FALSE;
    hScrollView.alwaysBounceHorizontal = FALSE;
    vScrollView.alwaysBounceVertical = FALSE;
    vScrollView.canCancelContentTouches =   NO;
    vScrollView.delaysContentTouches = NO;    
    hScrollView.bounces = FALSE;
    vScrollView.bounces = FALSE;
}

在mainView.m中我创建了一个将UIPicker带到视图上的按钮，但是我希望它能够使用属性更新scrollViewController中的vScrollView

vScrollView.scrollEnabled = NO;

对此有任何帮助将不胜感激。

谢谢Aaron

Answer 1

您可以在应用程序委托类中拥有一个指向scrollViewController的实例变量，然后您可以将该实例变量的scrollEnabled用于NO

UIScrollView控制器 - 从嵌套的笔尖更改scrollview属性？

1 个答案: