问题描述
我有一个带有分页的滚动视图.在 viewDidLoad 我检查当前方向是否为横向,然后我将其 contentsize 的高度设置为 440
I have a scrollview with pagination. In viewDidLoad i check if the current orientation is landscape then i set its contentsize's height 440
if (UIDeviceOrientationIsPortrait([[UIDevice currentDevice] orientation]))
{
[scroll setContentSize:CGSizeMake(self.scroll.frame.size.width*numberOfPages,340)];
}
else if (UIDeviceOrientationIsLandscape([[UIDevice currentDevice] orientation]))
{
[scroll setFrame:CGRectMake(0,0,480,480)];
[scroll setContentSize:CGSizeMake(self.scroll.frame.size.width*numberOfPages, 440)];
}
一切正常滚动视图滚动流畅,没有对角滚动.
everything works fine scrollview scrolls smoothy and there is no diagonal scrolling.
但是当方向改变时,
我必须再次设置滚动视图的框架和内容大小,我将其设置如下
i have to set scrollview's frame and contentsize again and i am setting it as follow
-(void)orientationChanged:(id)object
{
if(UIDeviceOrientationIsPortrait([[UIDevice currentDevice] orientation]))
{
self.scroll.frame = [[UIScreen mainScreen]bounds];
[scroll setContentSize:CGSizeMake(self.scroll.frame.size.width*numberOfPages, 340)];
}
else
{
self.scroll.frame = CGRectMake(0,0,480,480);
[scroll setContentSize:CGSizeMake(self.scroll.frame.size.width*numberOfPages, 600)];
}
}
我不明白为什么我必须在横向模式下将内容大小的高度设置为 600,这还不够.它又增加了一个问题,即滚动视图开始对角滚动,这是我不想要的,因为它看起来很奇怪.谁能帮助我了解我在哪里以及缺少什么?
i cant understand why i have to set content size's height upto 600 in landscape mode, and that too isnt enough. and it adds one more problem that scrollview starts scrolling diagonally which i dont want as it looks so weird. Can anyone help me understanding where and what i am missing?
我已将滚动视图的自动调整大小掩码设置为
i have set scrollview's autoresizing mask as
[scroll setAutoresizingMask:UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin|UIViewAutoresizingFlexibleHeight];
但改变它没有帮助.
推荐答案
这是您的代码中的问题.为什么要这样设置帧大小?你只有 320px width
的屏幕尺寸.而当它变为landscape
时,高度将只有320px
.但是您将滚动 height
设置为 480px
并且它 走出屏幕
并且 开始对角滚动
.
Here it is a problem in your code. Why you are setting the frame size like this?? You have only the screen size of 320px width
. And when it changes to landscape
, height will be only 320px
. But you are setting the scroll height
as 480px
and it goes out of the screen
and start to scroll diagonally
.
self.scroll.frame = CGRectMake(0,0,480,480);
不是那个帧大小,而是像这样改变
Instead of that frame size, change like this
self.scroll.frame = CGRectMake(0,0,480,320);
您需要设置内容大小,具体取决于您在任一方向的滚动视图中拥有的内容.
And you need to set the content size depend on the content you are having inside the scroll view in either orientation.
这篇关于方向更改时的 UIScrollview 内容大小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编程学习网!