webView代理

webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 44, 320, 440)];  [webView setUserInteractionEnabled:YES];//是否支持交互  //[webView setDelegate:self];  webView.delegate=self;  [webView setOpaque:NO];//opaque是不透明的意思  [webView setScalesPageToFit:YES];//自动缩放以适应屏幕  [self.view addSubview:webView];  

#pragma mark - webView高度代理

- (void)webViewDidFinishLoad:(UIWebView *)webView{

    

    

    NSString *meta = [NSStringstringWithFormat:@"document.getElementsByName(\"viewport\")[0].content = \"width=%f, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, user-scalable=no\"", webView.frame.size.width];

    [webView stringByEvaluatingJavaScriptFromString:meta];

    

    [webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextSizeAdjust= '100%'"];

    //字体颜色

    [webView stringByEvaluatingJavaScriptFromString:@"document.getElementsByTagName('body')[0].style.webkitTextFillColor= 'gray'"];

    

    //获取页面高度（像素）

    float clientheight = webView.scrollView.contentSize.height;

    //设置到WebView上

    webView.frame = CGRectMake(0, 0, iPhoneWidth, clientheight);

    

    // 修改界面的高度

    height_All += clientheight;

    [selfreloadRootContentSize];

    

}

1.隐藏上下滚动时出边界的后面的黑色的阴影- (void) hideGradientBackground:(UIView*)theView{  for (UIView * subview in theView.subviews)  {    if ([subview isKindOfClass:[UIImageView class]])      subview.hidden = YES;    [self hideGradientBackground:subview];  }}2. 禁用拖拽时的反弹效果[(UIScrollView *)[[webView subviews] objectAtIndex:0] setBounces:NO];  3. 判断用户点击类型- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{    switch (navigationType)     {        //点击连接        case UIWebViewNavigationTypeLinkClicked:        {            NSLog(@"clicked");        }            break;        //提交表单        case UIWebViewNavigationTypeFormSubmitted:        {            NSLog(@"submitted");        }        default:            break;    }    return YES;}