iPhone SDK:UIScrollView 不滚动

问题描述

我只是无法让我的滚动视图真正滚动.一切都显示正常，只是它不会滚动.....这是我的代码:

I just can't get my scroll view to actually scroll.. Everything displays fine except it just won't scroll..... Here's my code:

- (void)viewDidLoad {
    [super viewDidLoad];

    UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 600)];
    scrollView.contentSize = CGSizeMake(320, 600);
    scrollView.scrollEnabled = YES;
    scrollView.clipsToBounds = YES;
    [self.view addSubview:scrollView];

    planView = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:@"WorkoutTable.png"]];
    planView2 = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:@"WorkoutTable.png"]];
    planView2.frame = CGRectMake(0, 164, 320, 165);
    planView3 = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:@"WorkoutTable.png"]];
    planView3.frame = CGRectMake(0, 328, 320, 165);
    planView4 = [[WorkoutPlanView alloc] initWithImage:[UIImage imageNamed:@"WorkoutTable.png"]];
    planView4.frame = CGRectMake(0, 505, 320, 165);
    [scrollView addSubview:planView];
    [scrollView addSubview:planView2];
    [scrollView addSubview:planView3];
    [scrollView addSubview:planView4];
}

我该如何解决这个问题?

How do I fix this problem?

推荐答案

contentSize 必须大于滚动视图的框架才能滚动.:)

The contentSize must be larger than the scrollview's frame for there to be anything to scroll. :)

在这种情况下，它们都是 (320, 600) 所以将你的 scrollView 的初始化更改为

In this case, they're both (320, 600) so change your scrollView's init to

UIScrollView *scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];

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