iOS UIWebView 修改user-agent
2016-02-16 11:54
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WebView 没有提供设置user-agent 的接口,无论是设置要加载的request,还是在delegate 中设置request,经测试都是无效的。如下:
方案一:
[objc] view
plaincopy
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/a7c8e286f463007e2a900848b93dd72c.png)
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/9e12f1d3e499fc949c886e7c9e0484f9)
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request addValue:@"Jiecao/2.4.7" forHTTPHeaderField:@"user-agent"];
[self.webView loadRequest:request];
无效!!!
方案二:
[objc] view
plaincopy
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/a7c8e286f463007e2a900848b93dd72c.png)
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/9e12f1d3e499fc949c886e7c9e0484f9)
#pragma mark - webview delegate
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
NSMutableURLRequest *req = (NSMutableURLRequest *)request;
[req addValue:@"Jiecao/2.4.7" forHTTPHeaderField:@"user-agent"];
}
无效!!!
我的需求是不光要能更改user-agent,而且要保留WebView 原来的user-agent 信息,也就是说我需要在其上追加信息。在stackOverflow上搜集了多方答案,最终汇总的解决方案如下:
在启动时,比如在AppDelegate 中添加如下代码:
[objc] view
plaincopy
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/a7c8e286f463007e2a900848b93dd72c.png)
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/9e12f1d3e499fc949c886e7c9e0484f9)
//get the original user-agent of webview
UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectZero];
NSString *oldAgent = [webView stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];
NSLog(@"old agent :%@", oldAgent);
//add my info to the new agent
NSString *newAgent = [oldAgent stringByAppendingString:@" Jiecao/2.4.7 ch_appstore"];
NSLog(@"new agent :%@", newAgent);
//regist the new agent
NSDictionary *dictionnary = [[NSDictionary alloc] initWithObjectsAndKeys:newAgent, @"UserAgent", nil nil];
[[NSUserDefaults standardUserDefaults] registerDefaults:dictionnary];
这样,WebView在请求时的user-agent 就是我们设置的这个了,如果需要在WebView 使用过程中再次变更user-agent,则需要再通过这种方式修改user-agent, 然后再重新实例化一个WebView。
参考:
http://stackoverflow.com/questions/478387/change-user-agent-in-uiwebview-iphone-sdk/23654363#23654363
转自:http://blog.csdn.net/majiakun1/article/details/49123023
方案一:
[objc] view
plaincopy
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/a7c8e286f463007e2a900848b93dd72c.png)
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL:url];
[request addValue:@"Jiecao/2.4.7" forHTTPHeaderField:@"user-agent"];
[self.webView loadRequest:request];
无效!!!
方案二:
[objc] view
plaincopy
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/a7c8e286f463007e2a900848b93dd72c.png)
#pragma mark - webview delegate
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
NSMutableURLRequest *req = (NSMutableURLRequest *)request;
[req addValue:@"Jiecao/2.4.7" forHTTPHeaderField:@"user-agent"];
}
无效!!!
我的需求是不光要能更改user-agent,而且要保留WebView 原来的user-agent 信息,也就是说我需要在其上追加信息。在stackOverflow上搜集了多方答案,最终汇总的解决方案如下:
在启动时,比如在AppDelegate 中添加如下代码:
[objc] view
plaincopy
![](https://oscdn.geek-share.com/Uploads/Images/Content/201611/a7c8e286f463007e2a900848b93dd72c.png)
//get the original user-agent of webview
UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectZero];
NSString *oldAgent = [webView stringByEvaluatingJavaScriptFromString:@"navigator.userAgent"];
NSLog(@"old agent :%@", oldAgent);
//add my info to the new agent
NSString *newAgent = [oldAgent stringByAppendingString:@" Jiecao/2.4.7 ch_appstore"];
NSLog(@"new agent :%@", newAgent);
//regist the new agent
NSDictionary *dictionnary = [[NSDictionary alloc] initWithObjectsAndKeys:newAgent, @"UserAgent", nil nil];
[[NSUserDefaults standardUserDefaults] registerDefaults:dictionnary];
这样,WebView在请求时的user-agent 就是我们设置的这个了,如果需要在WebView 使用过程中再次变更user-agent,则需要再通过这种方式修改user-agent, 然后再重新实例化一个WebView。
参考:
http://stackoverflow.com/questions/478387/change-user-agent-in-uiwebview-iphone-sdk/23654363#23654363
转自:http://blog.csdn.net/majiakun1/article/details/49123023
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