Question

这就是我到目前为止，我有一个滚动条和两个按钮，我想要在滚动条上，但我不能到第二个按钮，因为它不会滚动到它。如果有人能在我的代码中看到错误，我将不胜感激。

    UIScrollView *mainScroll = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 65, 320, 4000)];
mainScroll.contentSize = CGSizeMake(320, 4000);
mainScroll.showsHorizontalScrollIndicator = YES;
[self.view addSubview:mainScroll];
[mainScroll setScrollEnabled:YES];


UIButton *mainCreateGame = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[mainCreateGame addTarget:self
                   action:@selector(goToCreateGameViewController)
         forControlEvents:UIControlEventTouchUpInside];
[mainScroll addSubview:mainCreateGame];
mainCreateGame.frame = CGRectMake(75, 10, 170, 60);



UIButton *anotherButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[anotherButton addTarget:self
                  action:@selector(goFuckOffApple)
        forControlEvents:UIControlEventTouchUpInside];
[mainScroll addSubview: anotherButton];
anotherButton.frame = CGRectMake(75, 3000, 170, 60);

Answer 1

好吧，除了热闹的方法名称（goF ** kOffApple，LOL）之外，您还要将滚动视图的帧设置为与其内容相同的大小。框架和内容大小是不同的动物。试试这个：

 UIScrollView *mainScroll = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 65, 320, 395)];
mainScroll.contentSize = CGSizeMake(320, 4000);
mainScroll.showsVerticalScrollIndicator = YES;
[self.view addSubview:mainScroll];
[mainScroll setScrollEnabled:YES];


UIButton *mainCreateGame = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[mainCreateGame addTarget:self
                   action:@selector(goToCreateGameViewController)
         forControlEvents:UIControlEventTouchUpInside];
[mainScroll addSubview:mainCreateGame];
mainCreateGame.frame = CGRectMake(75, 10, 170, 60);



UIButton *anotherButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[anotherButton addTarget:self
                  action:@selector(goFuckOffApple)
        forControlEvents:UIControlEventTouchUpInside];
[mainScroll addSubview: anotherButton];
anotherButton.frame = CGRectMake(75, 3000, 170, 60);

UIScrollView无法正确滚动

1 个答案: