为什么UIScrollView会将空间留在顶部而不会滚动到底部 [英] Why is UIScrollView leaving space on top and does not scroll to the bottom

问题描述

我是Objective-C编程的新手。

I am new to objective-C programming.

我正在使用带有标签，图像和文本视图的UIScrollView。

I am using UIScrollView with some labels, image and text view on it.

我已关闭Autolayout并且已经尝试使用调整滚动视图插入（标题中描述的情况）和关闭（不滚动）。

I have turned off Autolayout and already tried with "Adjust scroll View Insets" on (situation described in title) and off (doesn't scroll).

这是我插入到viewDidLoad中的内容：

This is what I insert into viewDidLoad:

    [scroller setScrollEnabled:YES];
[scroller setContentSize:CGSizeMake(320, 687)];

但我必须遗漏一些非常简单的东西。

But I must be missing something very simple.

推荐答案

1 ...为什么UIScrollView将空间留在最上面

1... Why is UIScrollView leaving space on top

使用故事板 - 转到视图控制器>属性检查器>取消选中调整滚动视图插入属性

With Storyboard- Goto view controller > Attribute Inspector > Uncheck Adjust Scroll View Insets property

使用代码 - 对于额外的空间集 viewController property automaticAdjustsScrollViewInsets to NO ，默认情况下，它是 YES 。

With Code- For extra space set viewController property automaticallyAdjustsScrollViewInsets to NO, by default it is YES.

self.automaticallyAdjustsScrollViewInsets = false; 
scroller.contentInset = UIEdgeInsetsZero;
scroller.scrollIndicatorInsets = UIEdgeInsetsZero;
scroller.contentOffset = CGPointMake(0.0, 0.0);

2 ...不会滚动到底部

2... does not scroll to the bottom

要使其滚动尝试在 contentSize 中使用大数字，如 CGSizeMake （320,1687）。如果它有效则意味着您没有将 contentSize 设置得足够大以包含其所有内容。

To make it scroll try with large number in contentSize like CGSizeMake(320, 1687). If it works that means you are not setting the contentSize large enough to have all its content.

这篇关于为什么UIScrollView会将空间留在顶部而不会滚动到底部的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！