ios - UIScrollView 不在 UiView 中滚动

Question

当我在 UIScrollView 上滚动时，它没有滚动。此外，我正在设置 ScrollView 的 contentSize。当我显示另一个 subview 和显示我的 View 之后，它正在滚动。

你可以看到这个 video 上有什么问题.我怎么解决这个问题？

myViewController.h文件

#import <UIKit/UIKit.h>

@interface myViewController : UIViewController



@property(nonatomic,retain)UIView * rightTabView;
@property(nonatomic,retain)UIView * leftTabView;
@property(nonatomic,retain)UIView * middleTabView;
@property(nonatomic,retain)UIScrollView *myscrollview;

@end

myViewController.m文件

- (void)viewDidLoad
{

    // Do any additional setup after loading the view from its nib.
    [super viewDidLoad];



    //create Tab views and addSubview


     CGFloat barHeight=58;
    self.rightTabView=[[UIView alloc] initWithFrame:CGRectMake(0, barHeight+55,self.view.bounds.size.width,self.view.bounds.size.height-barHeight-55)];
    [self.view addSubview:self.rightTabView];

    self.leftTabView=[[UIView alloc] initWithFrame:CGRectMake(0, barHeight+5,self.view.bounds.size.width,self.view.bounds.size.height-barHeight-55)];
    self.leftTabView.backgroundColor=[UIColor redColor];
    [self.view addSubview:self.leftTabView];


    self.middleTabView=[[UIView alloc] initWithFrame:CGRectMake(0, barHeight+55,self.view.bounds.size.width,self.view.bounds.size.height-barHeight-55)];
    [self.view addSubview:self.middleTabView];

    //add Subview to leftTabView
    myscrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(10, 10,300, 340)];
    myscrollview.userInteractionEnabled=YES;
    myscrollview.backgroundColor = [UIColor greenColor];
    myscrollview.delegate = self;
    [self.leftTabView addSubview:myscrollview];

    myscrollview.contentSize = CGSizeMake(2000, 2000);
}

Answer 1

看起来您的 middleTabView 正在遮挡您的 leftTabView(这是您的 ScrollView 的 super View )。要么将 leftTabView 置于 View 层次结构的顶部:

[self.leftTabView.superview bringSubViewToFront:self.leftTabView];

或禁用用户交互或您的 middleTabView 的可见性(或最后添加 leftTabView)。