IOS Get User-agent

Source: Internet
Author: User

The first of these methods

UIWebView *webview = [[UIWebView alloc] Initwithframe:cgrectzero];
NSString *useragent = [WebView stringbyevaluatingjavascriptfromstring:@ "navigator.useragent"];
NSLog (@ "-----------------%@", useragent);

The second method of

@interface Viewcontroller () <UIWebViewDelegate>

{
UIWebView *_webview;

NSString *_useragent;
}

{

  _webview = [[UIWebView alloc] init];
_webview.delegate = self;
[_webview loadrequest:[nsurlrequest requestwithurl:[nsurl urlwithstring:@ "http://www.baidu.com"]];
NSLog (@ "-----------------%@", [self useragentstring]);

}

-(NSString *) useragentstring {
    
While (_useragent = = nil)
        
    {
        
NSLog (@ "%@", @ "in while");
        
[[Nsrunloop Currentrunloop] Runmode:nsdefaultrunloopmode beforedate:[nsdate distantfuture]];
        
    }
    
return _useragent;
    
}



-(BOOL) WebView: (UIWebView *) WebView shouldstartloadwithrequest: (nsurlrequest *) Request Navigationtype: ( Uiwebviewnavigationtype) Navigationtype {
    
if (WebView = = _webview) {
        
_useragent = [Request valueforhttpheaderfield:@ "User-agent"];
        
//Return No, we don ' t care on executing an actual request.
        
return NO;
        
    }
    
return YES;
    
}

IOS Get user-agent

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