本文介绍了检测我何时在页面顶部滚动 UIWebView的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着跟版网的小编来一起学习吧!
问题描述
我想在我的 webview 顶部添加一个 URL/google 栏,并像 Safari 一样通过向上滚动我的网页来访问它.为此,我会检测用户何时滚动页面,以及何时滚动到达顶部.
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.
但我真的不知道怎么做.
But I really don't know how.
一个想法?非常感谢.
马丁
推荐答案
我也在挖掘同样的问题并找到了解决方案.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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