iOS中修改WebView默认的User Agent

（转）iOS中修改WebView默认的User Agent使用了第二种方法，略作修改，[objc] viewplaincopy- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictiona

By_Kevin_Yang

1665人浏览 · 2015-04-30 09:35:23

By_Kevin_Yang · 2015-04-30 09:35:23 发布

（转）iOS中修改WebView默认的User Agent

使用了第二种方法，略作修改，

[objc]view plaincopy
   
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {  
      
    //欢迎页显示3秒  
    [NSThread sleepForTimeInterval:2.0];  
  
    //修改app默认UA  
    @autoreleasepool {  
        UIWebView* tempWebView = [[UIWebView alloc] initWithFrame:CGRectZero];  
        NSString* userAgent = [tempWebView stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];  
//        NSLog(@"------%@",userAgent);  
        NSString *executableFile = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleExecutableKey];  
        NSString *version = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleVersionKey];  
        NSString *ua = [NSString stringWithFormat:@"%@ %@/%@",  
                        userAgent,  
                        executableFile,version];  
//        NSLog(@"------%@",ua);  
          
        [[NSUserDefaults standardUserDefaults] registerDefaults:@{@"UserAgent" : ua, @"User-Agent" : ua}];  
#if !__has_feature(objc_arc)  
        [tempWebView release];  
#endif  
    }  
}  

在网页中查看效果

[objc]view plaincopy
   
//在Safari中打开文章中的文档  
- (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {  
    NSLog(@"ua=======%@",[request valueForHTTPHeaderField:@"User-Agent" ]);  
    //判断是否是单击  
    if (navigationType == UIWebViewNavigationTypeLinkClicked) {  
        NSURL *url = [request URL];  
        [[UIApplication sharedApplication]openURL:url];  
        return NO;  
    }  
    return YES;  
}  