js调用oc代码和 oc调用js代码

来源：互联网发布：淘宝虚标电池编辑：程序博客网时间：2024/05/01 16:21

1.js调用oc代码 oc中的网页html

<!DOCTYPE html><html><head lang="en">    <metacharset="UTF-8">    <title></title>    <style>        body{            margin:40px;        }    </style></head><body>   <buttononclick="openCamera();">访问相册</button>      <scripttype="text/javascript">       function openCamera(){           window.location.href ='dswq:///openCamera';       }   </script></body></html>

oc的代码

- (void)viewDidLoad {    [superviewDidLoad];       NSURL *url = [[NSBundlemainBundle] URLForResource:@"test"withExtension:@"html"];    NSURLRequest *request = [NSURLRequestrequestWithURL:url];    [self.webViewloadRequest:request];}- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType{    NSLog(@"%@", request.URL.absoluteString);        NSString *str = request.URL.absoluteString;    NSRange range = [strrangeOfString:@"dswq:///"];    NSUInteger location = range.location;    if (location !=NSNotFound) {        NSString *method = [strsubstringFromIndex:location + range.length];        SEL sel =NSSelectorFromString(method);        [selfperformSelector:sel];    }        returnYES;}//实现访问相册- (void)openCamera{    UIImagePickerController *pickerVC = [[UIImagePickerControlleralloc] init];    pickerVC.sourceType =UIImagePickerControllerSourceTypePhotoLibrary;    [selfpresentViewController:pickerVC animated:YEScompletion:nil];}

2.oc调用js代码

- (void)viewDidLoad {    [superviewDidLoad];       self.webView.scrollView.hidden =YES;   self.webView.backgroundColor = [UIColorgrayColor];       // 加载一个网页   NSURL *url = [NSURLURLWithString:@"http://www.xianhua.cn/m/"];   NSURLRequest *request = [NSURLRequestrequestWithURL:url];    [self.webViewloadRequest:request];}#pragma mark - <UIWebViewDelegate>-(void)webViewDidFinishLoad:(UIWebView *)webView{   // 删除底部的广告   NSString *str = @" document.getElementsByClassName('detail_btns2')[0].remove();";    [webViewstringByEvaluatingJavaScriptFromString:str];       // 修改标题   NSString *str2 = @"document.getElementsByTagName('h1')[0].innerText = '－－鲜花网－－';";    [webViewstringByEvaluatingJavaScriptFromString:str2];       // 修改底部的标题   NSString *str3 = @"document.getElementById('xiazaiapp').getElementsByTagName('a')[0].innerText = '－－下载鲜花网APP－－';";    [webViewstringByEvaluatingJavaScriptFromString:str3];}

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js调用oc代码 和 oc调用js代码

js调用oc代码和 oc调用js代码