iOS 使用wkWebView 获取userAgent

__block WKWebView *webView = [[WKWebView alloc] initWithFrame:CGRectZero];[webView evaluateJavaScript:@"navigator.userAgent" completionHandler:^(NSString *result, NSError * error) {webView = nil; ///

刘小哈哈哈

2646人浏览 · 2021-12-28 16:24:14

刘小哈哈哈 · 2021-12-28 16:24:14 发布

  __block WKWebView *webView = [[WKWebView alloc] initWithFrame:CGRectZero];
    [webView evaluateJavaScript:@"navigator.userAgent" completionHandler:^(NSString *result, NSError * error) {
        webView = nil; /// 延迟webview释放，否则无法获取result
        if (!error && result && [result isKindOfClass:[NSString class]]) {
		NSString *userAgent = result;
        }
    }];