Disable Scroll on a UIWebView allowed?

2019-01-16 05:10发布

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问题:

I have to show a web article with a UITableView under the article.

The only option I found was to display the article in a UIWebView in the tableView header.

In order to do that I have to get the height of the webView content and I have to disable scrolling for the webView.

I found two solutions to disable scrolling:

for (id subview in webView.subviews)
    if ([[subview class] isSubclassOfClass: [UIScrollView class]])
        ((UIScrollView *)subview).scrollEnabled=NO;

or in JavaScript:

<script type="text/javascript">
touchMove = function(event) {
    event.preventDefault();
}

I heard that the first solution is forbidden by Apple but I don't have any proof of it. Will my application be rejected by using this solution? If so, can I use the second solution without being rejected?

回答1:

Starting with iOS5 we have direct access to the scrollview of the UIWebView.
You can disable scrolling and bounces like this:

webView.scrollView.scrollEnabled = NO; 
webView.scrollView.bounces = NO;

回答2:

Since this question is still applicable, there is a new way to do it! (iOS 7.0+, perhaps iOS 6 also, not confirmed)

webView.scrollView.scrollEnabled = NO;

Take care :)

回答3:

You can simply set the web view user interaction property to no i.e.

webView.userInteractionEnabled = NO;

Its pretty simple and works fine,thanks :)

回答4:

for all ios versions you can use this code instead of setScrollEnabled :

for (UIView *view in webview.subviews) {
    if ([view isKindOfClass:[UIScrollView class]]) {
       UIScrollView *scrollView = (UIScrollView *)view;
       scrollView.scrollEnabled = NO;
    }
}

回答5:

Use this one <body ontouchmove="event.preventDefault()">

回答6:

I think the Javascript

<script type="text/javascript">
touchMove = function(event) {
event.preventDefault();
}

is far the best solution.

Indeed :

Your first examle, or the

[[[WebView subviews] lastObject] setScrollingEnabled:NO];

one (same things) could be rejected because not documented, or make you app crash in a further ios update.

And the

[[myWebView scrollView] setBounces:NO];

method won't work with iOS < 5.

回答7:

SWIFT 3 version

    webView.scrollView.bounces = false
    webView.scrollView.isScrollEnabled = false

回答8:

[[[WebView subviews] lastObject] setScrollingEnabled:NO];

that sorted it for me

回答9:

I don't think the first option is forbidden by Apple.

You could try

[[[Webview subviews] lastObject] setScrollingEnabled:NO];

If you don't want any links to work in your UIWebView, you can also do

[myWebView setUserInteractionEnabled:NO];

回答10:

The first is rejected by Apple. It happened to me just this morning.

回答11:

[[myWebView scrollView] setBounces:NO];

回答12:

Use it :

[[webView scrollView] setBounces:NO];
[[webView scrollView] setScrollingEnabled:NO];

回答13:

Try this,

[(UIScrollView *)[[webView subviews] lastObject] setScrollEnabled:NO];

回答14:

I placed some UIWebViews inside a UIScrollView and it wasn't scrolling for me, unless I disable the user interaction on the webviews (even with the [[webview scrollview] setScrollEnabled:NO]). So I placed the UIWebViews inside a UIView and that worked for me but then the interactive links or divs in my HTML inside the UIWebView were not working anymore.

The only thing that worked for me is to keep the UIWebView inside the UIScrollView so the HTML interactions work but the UIScrolling does not.

I then created a custom delegate for the webviews to listen for window.open("http:/customEvent") that is called from the HTML contained in the webview. I also added a JavaScript swipe detection that will fire up my custom event.

When the webview delegate receives this, I pass a notification to a controller which then dynamically scrolls my UIScrollView. Obviously I had to build a logic to monitor and scroll to the next or previous page. Not the prettiest solution but It's working for me.

回答15:

Try this in your HTML (<HEAD> tag)

<script> 
  document.ontouchmove = function(event) { event.preventDefault(); }
</script>

It will disable scrolling on your web page.

(works on any webpage, not just UIWebView)

回答16:

I needed to disable scrolling because dismissing a custom keyboard really messed up scrolling with the webView. Nothing else worked and I resorted to something like this:

-(void)viewDidLoad{
  [super viewDidLoad];
  [self.webView.scrollView addObserver:self forKeyPath:@"contentOffset" options:NSKeyValueObservingOptionNew context:nil];
  self.webView.scrollView.showsVerticalScrollIndicator = NO;
}  

-(void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context{
    if (!CGPointEqualToPoint(self.webView.scrollView.contentOffset, CGPointZero)){
        self.contentOffset = CGPointZero;
    }
}

回答17:

Is a UIWebview and a UITableView on a UIScrollview, and setting the height of the webview (and adding to the total ContentSize of the Scrollview) like what you want?

回答18:

[[[WebView subviews] lastObject] setScrollingEnabled:NO];

标签： iphone uiwebview scroll