【iOS和HTML 5交互】iOS中加载html5调用html方法和修改html5内容

NSURL *url = [[NSBundle mainBundle] URLForResource:@"test" withExtension:@"html"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];

NSURL *url = [NSURL URLWithString:@"http://www.baidu.com"];
NSURLRequest *request = [NSURLRequest requestWithURL:url];
[self.webView loadRequest:request];

// 网页视图加载完毕会调用代理的这个方法
- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    NSString *str = @"document.getElementsByClassName(‘detail_btns2‘)[0].remove();";
    [webView stringByEvaluatingJavaScriptFromString:str];
}

- (void)webViewDidFinishLoad:(UIWebView *)webView
{
    NSString *headerStr = @"document.getElementsByTagName(‘h1‘)[0].innerText = ‘测试文字‘;";
    [webView stringByEvaluatingJavaScriptFromString:headerStr];

    NSString *downLoadStr = @"document.getElementById(‘xiazaiapp‘).getElementsByTagName(‘a‘)[0].innerText = ‘下个鸡蛋‘;";
    [webView stringByEvaluatingJavaScriptFromString:downLoadStr];
}