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POAndroid Webview Slow Performance For Large Form
 

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  1. POAndroid Webview Slow Performance For Large Form
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    <p>I'm using Android <code>WebView</code> for viewing local <code>HTML</code> file. This <code>HTML</code> file has about 500 text boxes and when I try to input something on a text box, it can't display the character automatically. It was displayed late and very slow. </p> <p>I'm using the following code:</p> <pre><code>WebView webview = (WebView) this.findViewById(R.id.appWebView); webview.addJavascriptInterface(new DemoJavaScriptInterface(), "demo"); //webview.clearHistory(); //webview.clearFormData(); //webview.clearCache(true); webview.setScrollBarStyle(WebView.SCROLLBARS_OUTSIDE_OVERLAY); webview.setVerticalScrollBarEnabled(false); webview.setHorizontalScrollBarEnabled(false); // disable scroll on touch webview.setOnTouchListener(new View.OnTouchListener() { @Override public boolean onTouch(View v, MotionEvent event) { if(!AppView.this.origin.equalsIgnoreCase("termsofuse")){ return (event.getAction() == MotionEvent.ACTION_MOVE); } return false; } }); WebSettings webSettings = webview.getSettings(); webSettings.setSavePassword(false); webSettings.setSaveFormData(false); webSettings.setJavaScriptEnabled(true); webSettings.setSupportZoom(true); webSettings.setCacheMode(WebSettings.LOAD_NO_CACHE); webSettings.setPluginsEnabled(true); webSettings.setAllowFileAccess(true); webSettings.setLoadWithOverviewMode(true); webSettings.setUseWideViewPort(true); webSettings.setLayoutAlgorithm(LayoutAlgorithm.SINGLE_COLUMN); webSettings.setRenderPriority(RenderPriority.HIGH); final Activity activity = this; webview.setWebChromeClient(new WebChromeClient() { /* public void onProgressChanged(WebView view, int progress) { // Activities and WebViews measure progress with different scales. // The progress meter will automatically disappear when we reach 100% activity.setProgress(progress * 1000); } */ }); webview.setWebViewClient(new WebViewClient() { public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { Toast.makeText(activity, "Oh no! " + description, Toast.LENGTH_SHORT).show(); } @Override public void onPageStarted(WebView view, String url,Bitmap favicon) { // TODO Auto-generated method stub super.onPageStarted(view, url, favicon); if(AppView.this.bgHeigth.equalsIgnoreCase("470px")){ view.setInitialScale(155); }else{ //420px view.setInitialScale(126); } } }); webview.loadUrl( "file:///" + Environment.getExternalStorageDirectory() + "/Some/Directory/main.html" ); </code></pre> <p>Any ideas how to solve this?</p>
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    1. USVivek Kalkur
    1. USMico
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      1. VTApproveEditSuggestion
    2. VO
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      1. POAndroid Webview Slow Performance For Large Form
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      1. VTUpMod
    1. CO......Check this out, http://stackoverflow.com/a/7528833/563306
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      1. POAndroid Webview Slow Performance For Large Form
      1. USdcanh121
 

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