否，您将无法使用allowsMagnification.您将扩展到自己的WebView组件版本，以便更新元配置以停止缩放.

No, you will not be able to use allowsMagnification. You will have extend to your own version of WebView component in order to update meta configuration to stop zooming.

更新:

从{N}核心模块(v5.x)注入的默认视口必须进行修改以禁用缩放，这是这样做的.

The default viewport being injected from {N} core module (v5.x) has to be modified in order to disable zoom, here is how it done.

import { WebView } from 'tns-core-modules/ui/web-view';

declare var WKUserScript, WKUserScriptInjectionTime, WKUserContentController, WKWebViewConfiguration, WKWebView, CGRectZero;

(<any>WebView.prototype).createNativeView = function () {
    const jScript = `var meta = document.createElement('meta'); 
    meta.setAttribute('name', 'viewport');
    meta.setAttribute('content', 'initial-scale=1.0 maximum-scale=1.0');
    document.getElementsByTagName('head')[0].appendChild(meta);`;
    const wkUScript = WKUserScript.alloc().initWithSourceInjectionTimeForMainFrameOnly(jScript, WKUserScriptInjectionTime.AtDocumentEnd, true);
    const wkUController = WKUserContentController.new();
    wkUController.addUserScript(wkUScript);
    const configuration = WKWebViewConfiguration.new();
    configuration.userContentController = wkUController;
    configuration.preferences.setValueForKey(
        true,
        "allowFileAccessFromFileURLs"
    );
    return new WKWebView({
        frame: CGRectZero,
        configuration: configuration
    });
};

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