如何在 webView 中启用 javascript

Posted 2023-05-07

【中文标题】如何在 webView 中启用 javascript

【英文标题】：How to enable javascript into webView

【发布时间】：2012-02-09 09:23:21

【问题描述】：

在 android 中，如果我在 webView 中使用 javascript，它会强制关闭。有没有可能在 webView 中使用 java 脚本。请帮忙...

01-10 10:08:51.513: W/dalvikvm(5994): JNI WARNING: jarray 0x407447a8 points to non-array object (Ljava/lang/String;)
01-10 10:08:51.513: I/dalvikvm(5994): "WebViewCoreThread" prio=5 tid=9 NATIVE
01-10 10:08:51.513: I/dalvikvm(5994):   | group="main" sCount=0 dsCount=0 obj=0x40567400 self=0x1f9e58
01-10 10:08:51.513: I/dalvikvm(5994):   | sysTid=6010 nice=0 sched=0/0 cgrp=default handle=2269896
01-10 10:08:51.513: I/dalvikvm(5994):   | schedstat=( 44479977019 41285891893 14352 )
01-10 10:08:51.513: I/dalvikvm(5994):   at android.webkit.WebViewCore.nativeTouchUp(Native Method)
01-10 10:08:51.513: I/dalvikvm(5994):   at android.webkit.WebViewCore.nativeTouchUp(Native Method)
01-10 10:08:51.543: I/dalvikvm(5994):   at android.webkit.WebViewCore.access$3300(WebViewCore.java:53)
01-10 10:08:51.543: I/dalvikvm(5994):   at android.webkit.WebViewCore$EventHub$1.handleMessage(WebViewCore.java:1158)
01-10 10:08:51.543: I/dalvikvm(5994):   at android.os.Handler.dispatchMessage(Handler.java:99)
01-10 10:08:51.543: I/dalvikvm(5994):   at android.os.Looper.loop(Looper.java:123)
01-10 10:08:51.543: I/dalvikvm(5994):   at android.webkit.WebViewCore$WebCoreThread.run(WebViewCore.java:629)
01-10 10:08:51.557: I/dalvikvm(5994):   at java.lang.Thread.run(Thread.java:1019)
01-10 10:08:51.557: E/dalvikvm(5994): VM aborting

【参考方案1】：

默认情况下，WebView 中禁用 JavaScript。

WebView myWebView = (WebView) findViewById(R.id.webview);
WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);

【参考方案2】：

 WebView webView = (WebView) findViewById(R.id.webview);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.getSettings().setJavaScriptCanOpenWindowsAutomatically(true);

【参考方案3】：

在Kotlin的WebView中启用JS：

val webView = web_view_id
webView.settings.javaScriptEnabled = true

【参考方案4】：

在某些版本中，您可能必须这样做：

WebView browser = new WebView();
WebEngine webEngine = browser.getEngine();
webEngine.setJavaScriptEnabled(true);

【参考方案5】：

要启用 JavaScript 创建，您需要为 WebView init 创建一个 configuration 参数

struct VideoView: View, UIViewRepresentable 
        func makeUIView(context: Context) -> WKWebView 
            let configuration: WKWebViewConfiguration = WKWebViewConfiguration()
            let preferences: WKWebpagePreferences = WKWebpagePreferences()
            preferences.allowsContentJavaScript = true
            configuration.defaultWebpagePreferences = preferences
            let webView: WKWebView = WKWebView(
                frame: .zero,
                configuration: configuration
            )
            return webView
        
        
        func updateUIView(_ UIView: WKWebView, context: Context) 
            guard let url = URL("") else return
            UIView.scrollView.isScrollEnabled = false
            UIView.load(URLRequest(url: url))