好的,这里的关键是我根本没有使用 IB,因为我正在使用的视图是通过编程方式创建的.UIView
覆盖了屏幕的下半部分,上面有一堆按钮.但是,我想在 UIView
中添加更多按钮,而不使其变得更大.为此,我想在视图中创建一个 UIScrollView
,这将允许我在屏幕外添加更多按钮,以便用户可以滚动到它们.我认为这就是它的工作原理.
Alright, so the key here is I'm not using IB at all, because the View I'm working with is created programmatically. The UIView
covers the lower half the screen, and has a bunch of buttons on it. However, I want to add more buttons to the UIView
, without making it any larger. To do so, I want to make a UIScrollView
inside the view, which will allow me to add more buttons off screen so the user can scroll to them. I think that's how it works.
self.manaView = [[[UIView alloc] initWithFrame:frame] autorelease];
self.manaView.backgroundColor = [UIColor purpleColor];
UIScrollView *scroll = [UIScrollView alloc];
scroll.contentSize = CGSizeMake(320, 400);
scroll.showsHorizontalScrollIndicator = YES;
[self.manaView addSubview:scroll];
代码的第一部分启动了我的 UIView
,效果很好,但我不知道如何以编程方式制作 UIScrollView
并将其添加到视图中,然后向其中添加按钮.
The first part of the code iniates my UIView
, which works great, but I can't figure out how to make the UIScrollView
programmatically and add it to the view, and then add the buttons to it.
UIButton *ret2 = [UIButton buttonWithType:UIButtonTypeRoundedRect];
ret2.tag = 102;
ret2.frame = CGRectMake(255, 5, 60, 50);
[ret2 setTitle:@"Return" forState:UIControlStateNormal];
[ret2 addTarget:self action:@selector(flipAction:) forControlEvents:UIControlEventTouchUpInside];
[scroll addSubview:ret2];
当我这样做时,按钮从我的屏幕上消失了.那么我该如何正确地做到这一点呢?感谢您的帮助!
When I did that, the button simply disappeared off my screen. So How do I do this correctly? Thank you for your help!
代替:
UIScrollView *scroll = [UIScrollView alloc];
执行此操作(将框架设置为您希望滚动视图的大小):
do this (setting the frame to however big you want the scroll view to be):
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:...];
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