如何在macOS上使用WKWebView支持类似缩放的Safari

我遇到了同样的问题,找到了解决办法。您需要将JavaScript代码注入设置为 WkWebView

完整代码如下:

NSString *jScript = @"document.body.style.zoom = 0.8";
WKUserScript *wkUScript = [[WKUserScript alloc] initWithSource:jScript injectionTime:WKUserScriptInjectionTimeAtDocumentEnd forMainFrameOnly:YES];

WKUserContentController *wkUController = [[WKUserContentController alloc] init];
[wkUController addUserScript:wkUScript];

WKWebViewConfiguration *configuration = [[WKWebViewConfiguration alloc] init];
configuration.userContentController = wkUController;

WKWebView *webContentView = [[WKWebView alloc] initWithFrame:NSMakeRect(0, 0,sizeWidth, sizeHeight) configuration:configuration];

webView.evaluateJavaScript("document.body.style.zoom = 1.5", completionHandler: nil)

这当然也可以与 WKNavigationDelegate

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
    webView.evaluateJavaScript("document.body.style.zoom = 1.5", completionHandler: nil)
}

这种方法更灵活一些,但比代码注入慢一些,这取决于加载的页面的复杂性。