ios 修改webview的 ua

最新推荐文章于 2025-09-21 12:03:53 发布

转载最新推荐文章于 2025-09-21 12:03:53 发布 · 1w 阅读

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#webview

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本文介绍了一种在iOS应用中修改WebView默认UserAgent的方法，并通过一个具体实现案例展示了如何结合应用程序的版本信息定制UserAgent字符串。

（转）iOS中修改WebView默认的User Agent

使用了第二种方法，略作修改，

- (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

//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;
}