oc 调用js函数

        id userinfo = notify.userInfo;
        NSInteger code = [userinfo[@"code"] integerValue];
        NSString *platform = userinfo[@"platform"];
        NSString *url = userinfo[@"url"];
        NSString *js = [NSString stringWithFormat:@"onShared(\"%d\",\"%@\",\"%@\");", (int)code, platform, url];
        [self.webView stringByEvaluatingJavaScriptFromString:js];