UIWebView添加头部视图

来源：互联网发布：神周瑜皮肤知乎编辑：程序博客网时间：2024/05/17 03:23

环境：系统版本：OSX 10.10.2

Xcodel版本：7.1.1

模拟器：iPhone6

功能：网页滚动的时候，表头也跟着滚动

1.首先创建webView的类，定义属性

UIWebView *webView = [[UIWebView alloc]initWithFrame:CGRectMake(0, 0, 375, 667)];        webView.scalesPageToFit = YES;        NSURL *url = [NSURL URLWithString:@"https://m.yhouse.com/meal-app/774"];        [webView loadRequest:[NSURLRequest requestWithURL:url]];        [self.contentView addSubview:webView];

2.创建表头视图

UIView *myview = [[UIView alloc]initWithFrame:CGRectMake(0, -500, 375, 500)]; // 头部视图的y要给负值        myview.backgroundColor = [UIColor magentaColor];        <span style="background-color: rgb(255, 255, 153);">webView.scrollView.contentInset = UIEdgeInsetsMake(500, 0, 0, 0);// 设置内部偏移量</span>        [webView.scrollView addSubview:myview];

关键需要设置网页的内部偏移量

4.此外webView还有4个代理方法，可以在里面处理点击事件

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType;- (void)webViewDidStartLoad:(UIWebView *)webView;- (void)webViewDidFinishLoad:(UIWebView *)webView;- (void)webView:(UIWebView *)webView didFailLoadWithError:(nullable NSError *)error;

0 0