ios 修改webview的 ua

[objc] view plain copy

1. - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {  
2.       
3.     //欢迎页显示3秒  
4.     [NSThread sleepForTimeInterval:2.0];  
5.   
6.     //修改app默认UA  
7.     @autoreleasepool {  
8.         UIWebView* tempWebView = [[UIWebView alloc] initWithFrame:CGRectZero];  
9.         NSString* userAgent = [tempWebView stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];  
10. //        NSLog(@"------%@",userAgent);  
11.         NSString *executableFile = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleExecutableKey];  
12.         NSString *version = [[[NSBundle mainBundle] infoDictionary] objectForKey:(NSString *)kCFBundleVersionKey];  
13.         NSString *ua = [NSString stringWithFormat:@"%@ %@/%@",  
14.                         userAgent,  
15.                         executableFile,version];  
16. //        NSLog(@"------%@",ua);  
17.           
18.         [[NSUserDefaults standardUserDefaults] registerDefaults:@{@"UserAgent" : ua, @"User-Agent" : ua}];  
19. #if !__has_feature(objc_arc)  
20.         [tempWebView release];  
21. #endif  
22.     }  
23. }  

在网页中查看效果

[objc] view plain copy

1. //在Safari中打开文章中的文档  
2. - (BOOL)webView:(UIWebView*)webView shouldStartLoadWithRequest:(NSURLRequest*)request navigationType:(UIWebViewNavigationType)navigationType {  
3.     NSLog(@"ua=======%@",[request valueForHTTPHeaderField:@"User-Agent" ]);  
4.     //判断是否是单击  
5.     if (navigationType == UIWebViewNavigationTypeLinkClicked) {  
6.         NSURL *url = [request URL];  
7.         [[UIApplication sharedApplication]openURL:url];  
8.         return NO;  
9.     }  
10.     return YES;  
11. }