UIWebView——OC 与 JS交互

1，在webView 的代理方法中截取指定的URL。

- (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType{

NSURL*url=[requestURL];

NSString*strURL=[[urlabsoluteString]stringByReplacingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

NSLog(@"%@-------------%@",url,strURL);

//判断strURL

[selfloadMoreComment:webViewstrURL:strURL];

return YES;

}

2，根据截取的URL判断URL中指定的特殊字段，去处理对应的事件。

- (void)loadMoreComment:(UIWebView*)webView strURL:(NSString*)strURL {

//根据返回的url，判断这个url是头条评论详情的url，还是资深评论详情的url，防止资讯详情页面加载评论详情页面的web页

self.stringArrr= [strURLcomponentsSeparatedByString:@"?"];

if([self.stringArrr[0]rangeOfString:@"consult/allcomments"].location!=NSNotFound) {

// do something

}elseif([self.stringArrr[0]rangeOfString:@"Information/deepComments"].location!=NSNotFound){

// do something

}elseif([self.stringArrr[0]rangeOfString:@"Information/deepinformationDetail"].location!=NSNotFound){

// do something

}elseif([self.stringArrr[0]rangeOfString:@"HeadLines/detail"].location!=NSNotFound){

// do something

}else{

}

}

3，将Native数据传给JS端。

#pragma mark -评论过后将用户的数据传给web端

- (void)setUpCommentAfterGiveWeb{

//用户

MemberObject*member = XXXX;

//用户头像

NSString*replyhead = [XLArchiverHelpergetObject:@"headImageMine"];

NSMutableDictionary*dict2 = [NSMutableDictionarydictionary];

[dict2 setObject:member.userNameforKey:@"xxxx"];

[dict2 setObject:replyheadforKey:@"xxxx"];

//评论的id

[dict2setObject:self.replyIDforKey:@"xxxx"];

[dict2setObject:self.KBInputTextforKey:@"xxxx"];

NSString*data = [dict2JSONString];

NSString*addComment = [NSStringstringWithFormat:@"addComment(%@)",data];

NSLog(@"^^^^^^^^^^^^^^^^^^^^^%@",addComment);

[self.commentWebViewstringByEvaluatingJavaScriptFromString:addComment];

}

4，总结

这是JS与Native是最简单的也是最基础的交互操作，几乎可以满足我们OC与JS的交互索要做到事情。