Android webview獲取html的內容

時間 2019-11-15

標籤 android webview 獲取 html 內容欄目 Android 简体版

原文原文鏈接

Android用文本view加載HTML時，能夠首先獲取到html的內容，而後對html作本身想要的效果調整javascript

@Override
protected void onCreate(Bundle savedInstanceState) {html

       super.onCreate(savedInstanceState);
       setContentView(R.layout.activity_main);
       webView = (WebView) findViewById(R.id.web);
       loadHtml();java

}web

    private void loadHtml() {
       WebSettings webSettings = webView.getSettings();
       webSettings.setJavaScriptEnabled(true);
       webSettings.setSupportZoom(true);
       webView.addJavascriptInterface(new InJavaScriptLocalObj(), "java_obj");
       webView.loadUrl("http://www.baidu.com");
       webView.setWebViewClient(new CustomWebViewClient());
       WindowManager wm = (WindowManager) getSystemService(Context.WINDOW_SERVICE);
        int width = wm.getDefaultDisplay().getWidth();
       webView.scrollTo(width, 0);
   }ide

    final class CustomWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }
        @Override
        public void onPageStarted(WebView view, String url, Bitmap favicon) {
            super.onPageStarted(view, url, favicon);
        }
        @Override
        public void onPageFinished(WebView view, String url) {
            view.loadUrl("javascript:window.java_obj.getSource('<head>'+" +
                    "document.getElementsByTagName('html')[0].innerHTML+'</head>');");
            super.onPageFinished(view, url);
        }
    }url

    final class InJavaScriptLocalObj {
        @JavascriptInterface
        public void getSource(String html) {
            Log.e("html=", html);
        }
    }.net

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