检测我在页面顶部滚动UIWebView的时间 [英] Detect when I scroll my UIWebView at top of the page

问题描述

我想在我的webview上添加一个URL / google栏，并通过像Safari一样向上滚动我的网页来访问它。
要做到这一点，我会检测用户何时滚动页面，以及当滚动到达顶部时更多。

I would like to add an URL/google bar on top of my webview, and access it by scrolling up my web page exactly as Safari do. To do this, I would detect when the user is scrolling the page, and more over when the scroll reaches the top.

但我真的不这样做知道如何。

But I really don't know how.

一个想法？ Thanx很多。

An idea ? Thanx a lot.

Martin

推荐答案

我也在挖掘同样并找到了解决方案。我编写了以下方法来检测滚动坐标。见下文：

I was also digging for the same and found a solution. I coded the following method to detect the scrolling coordinates. See below:

-(void)userDidScrollWebView:(id)scrollPoint{
    // NSLog(@"scrolled:::");

    NSString *x1 = [webView stringByEvaluatingJavaScriptFromString: @"scrollX"];


    NSString *y1 = [webView stringByEvaluatingJavaScriptFromString: @"scrollY"];


    NSLog(@"scroll x=%@ y=%@", x1,y1);      

    if ([y1 isEqualToString: @"0"]) {
        NSLog(@"RELAOD ME");
    }   
}

希望对您有所帮助。

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