- (void)webViewDidFinishLoad:(UIWebView *)webView
{
NSString *meta = [NSString stringWithFormat:@"document.getElementsByName("viewport")[0].content = "width=%f, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no"", IPHONE_WIDTH];
[webView stringByEvaluatingJavaScriptFromString:meta];
}
注意：使用这个方法时要把UIWebView的scalesPageToFit设成NO
webView.scalesPageToFit = NO;
2.为网页中的图片添加点击事件，当点击图片时放大查看
思路是给每一个img标签添加onclick事件，在事件中把img的src属性封装成一个特殊的url，然后进行拦截
如果是通过loadHTMLString去加载网页的话，可以执行下面一句进行替换：
复制代码
html = [html stringByReplacingOccurrencesOfString:@"<img " withString:@"<img onclick="window.location.href=('http://www.easck.com/p>
如果是通过loadRequest，那就要再webViewDidFinishLoad中执行以下JS：
NSString *js = @"var imgs = document.getElementsByTagName("img");"
"for(var i=0;i<imgs.length;i++){"
" var img = imgs[i];"
" img.onclick=function(){window.location.href=('http://www.easck.com/pre>
然后通过webview的代理方法去拦截，拿到图片的url，之后就可以做各种处理了
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType
{
NSString *url = request.URL.absoluteString;
if ([url hasPrefix:@"http://www.easck.com// Do something..
return NO;
}
return YES;
}
