1 #import "JSHanledWebViewController.h"
 2
 3 //1.遵守协议
 4 @interface JSHanledWebViewController ()<UIWebViewDelegate>
 5 @property (weak, nonatomic) IBOutlet UIWebView *webView;
 6
 7 @end
 8
 9 @implementation JSHanledWebViewController
10
11 - (void)viewDidLoad {
12     [super viewDidLoad];
13
14     //2.设置代理
15     self.webView.delegate = self;
16     [self loadWebView];
17
18 }
19
20 #pragma mark - 加载webView
21 - (void)loadWebView{
22
23     [self.webView loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:@"http://m.dianping.com/tuan/deal/66666"]]];
24     //关闭webView的弹簧效果
25     self.webView.scrollView.bounces = NO;
26     //隐藏滚动条
27     self.webView.scrollView.showsVerticalScrollIndicator = NO;
28
29
30 }
31
32 //3.实现相应代理方法
33 #pragma mark - Sent after a web view finishes loading a frame.
34 - (void)webViewDidFinishLoad:(UIWebView *)webView{
35
36     NSMutableString *jsStrM = [NSMutableString string];
37
38     //参考w3c: http://www.w3school.com.cn/js/js_htmldom.asp
39     //注意取出来的是个数组，注意指定下标
40     //取到顶部的导航栏
41     [jsStrM appendString:@"var header = document.getElementsByTagName('header')[0];"];
42     [jsStrM appendString:@"header.parentNode.removeChild(header);"];
43
44     //取到网页轮播器下的 立即购买
45     [jsStrM appendString:@"var costBox = document.getElementsByClassName('cost-box')[0];"];
46     [jsStrM appendString:@"costBox.parentNode.removeChild(costBox);"];
47
48     //取到灰色的立即购买
49     [jsStrM appendString:@"var buy = document.getElementsByClassName('buy-now btn-gray')[0];"];
50     [jsStrM appendString:@"buy.parentNode.removeChild(buy);"];
51
52     //取到底部的首页 点评团...
53     [jsStrM appendString:@"var footer = document.getElementsByClassName('footer')[0];"];
54     [jsStrM appendString:@"footer.parentNode.removeChild(footer);"];
55
56     //取到黄色的立即购买按钮
57     [jsStrM appendString:@"var footerBtn = document.getElementsByClassName('footer-btn-fix')[0];"];
58     [jsStrM appendString:@"footerBtn.parentNode.removeChild(footerBtn);"];
59
60     //The stringByEvaluatingJavaScriptFromString: method waits synchronously for JavaScript evaluation to complete.
61     [webView stringByEvaluatingJavaScriptFromString:jsStrM];
62
63
64 }
65
66 @end