webView獲取連結後的url和載入經過處理後的HTML
阿新 • • 發佈:2019-02-05
webview是android比較重要和常用的控制元件,網路上很多相關內容,在此介紹下WebViewClient比較少見的操作:
我們獲取WebView裡面連結別的網頁的url地址
private class MyWebViewClient extends WebViewClient { @Override public boolean shouldOverrideUrlLoading(WebView view, String url) { return true; //返回true才能在當前WebView顯示url連結內容,否則會開啟其它瀏覽器 } @Override public void onPageStarted(WebView view, String url, Bitmap favicon) { super.onPageStarted(view, url, favicon); initCollectionImageBtn(url); //1、 view.getOriginalUrl()初始載入為空null,此後該值==view.getUrl() != url // 2、並且url等於onPageFinished的值 imgButtonFresh.setImageDrawable(getResources().getDrawable( R.drawable.selector_nav_to_refresh_stop)); } @Override public void onPageFinished(WebView view, String url) { // view.getOriginalUrl() == view.getUrl() == url if (isCollection) { changeCollectionImgBg(COLLECTION_SATE_AFTER); } else { changeCollectionImgBg(COLLECTION_SATE_BEFORE); } imgButtonFresh.setImageDrawable(getResources().getDrawable( R.drawable.selector_nav_to_refresh)); view.loadUrl("javascript:" + handleWebViewHeader(url)); super.onPageFinished(view, url); } @Override public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { super.onReceivedError(view, errorCode, description, failingUrl); } }
以上程式碼是專案的一個程式碼片段,url的值參考上面程式碼,其中onPageFinished()函式中view.loadUrl("javascript:"+handleWebViewHeader(url))是載入經過處理後的HTML頁面,該處是去除header內容:
"document.body.removeChild(document.getElementsByTagName(\"header\")[0])";
或者 "document.body.removeChild(document.getElementsByClassName(\"header\")[0])";