問題描述

我有一個帶有分頁的滾動視圖.在 viewDidLoad 我檢查當前方向是否為橫向，然后我將其 contentsize 的高度設置為 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)];


    }

一切正常滾動視圖滾動流暢，沒有對角滾動.

everything works fine scrollview scrolls smoothy and there is no diagonal scrolling.

但是當方向改變時，

我必須再次設置滾動視圖的框架和內容大小，我將其設置如下

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)];
}


}

我不明白為什么我必須在橫向模式下將內容大小的高度設置為 600，這還不夠.它又增加了一個問題，即滾動視圖開始對角滾動，這是我不想要的，因為它看起來很奇怪.誰能幫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?

我已將滾動視圖的自動調整大小掩碼設置為

i have set scrollview's autoresizing mask as

[scroll setAutoresizingMask:UIViewAutoresizingFlexibleLeftMargin|UIViewAutoresizingFlexibleRightMargin|UIViewAutoresizingFlexibleHeight];

但改變它沒有幫助.

推薦答案

這是您的代碼中的問題.為什么要這樣設置幀大小?你只有 320px width 的屏幕尺寸.而當它變為landscape時，高度將只有320px.但是您將滾動 height 設置為 480px 并且它 走出屏幕 并且 開始對角滾動.

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);

不是那個幀大小，而是像這樣改變

Instead of that frame size, change like this

self.scroll.frame = CGRectMake(0,0,480,320);

您需要設置內容大小，具體取決于您在任一方向的滾動視圖中擁有的內容.

And you need to set the content size depend on the content you are having inside the scroll view in either orientation.

這篇關于方向更改時的 UIScrollview 內容大小的文章就介紹到這了，希望我們推薦的答案對大家有所幫助，也希望大家多多支持html5模板網！