I have used WebView quite a bit and usually the performance was perfectly fine and very usable. Html5 compliance is good. JavaScript performance varies but I found it about one third the speed of a recent version of Chrome according to Google’s V8 benchmark (which Chrome is presumably tuned against). Rendering performance didn’t seem to … Read more
The WebView might not be destroyed because you are removing the view in the onDestroy(), which can be called in a few different occasions: when the user exits the app via the back button, when the user presses the home button and then swipes the app from recents, or when the system kills your app … Read more
If you see these reports from devices running Android Lollipop, please ignore them. This likely happens whenever something launches an activity that uses WebView while the WebView package is in the middle of being updated by Play Store (which can only happen on Lollipop currently). During updates, packages are treated as not installed by the … Read more
I finally got the reason of android webview bad performance issue. Notice the image below… It used 12 seconds from OnPageStarted to OnPageFinished. Because it should load CSS,javascript and … AJAX… I notice that JQuery and JQueryMobile need load all DOM struct in Html.So if I lazy load the javascript after OnPageFinished,it should show page … Read more
Try doing requestWindowFeature(Window.FEATURE_NO_TITLE); in onCreate. It’ll need to be done immediately after calling super.onCreate and just before setContentView.
create this file and place it in your assets folder: webdemo.html <!DOCTYPE html PUBLIC “-//W3C//DTD HTML 4.01 Transitional//EN” “http://www.w3.org/TR/html4/loose.dtd”> <html> <head> <meta http-equiv=”Content-Type” content=”text/html; charset=ISO-8859-1″> <title>title</title> </head> <body> <h1>Web View Demo</h1> <br> <input type=”button” value=”Say hello” onClick=”showAndroidToast(‘Hello Android!’)” /> <br /> File Uri: <label id=”lbluri”>no file uri</label> <br /> File Path: <label id=”lblpath”>no file path</label> … Read more
It may be depends on the android build version problem, the below code will work successfully on 2.3+ builds, check this out, ourBrow.setWebViewClient(new WebViewClient() { @Override public void onReceivedError(WebView view, int errorCode, String description, String failingUrl) { Log.d(“WEB_VIEW_TEST”, “error code:” + errorCode + ” – ” + description); } @Override public boolean shouldOverrideUrlLoading(WebView view, String … Read more
This answer is outdated but may be interesting to learn about the technical background. RAD Studio 10.4 Sydney now supports using the Edge browser out of the box. See my other answer. The WebView control is offered via WinRT and does not depend on .net. You can use it from normal Win32 applications. WinRT (Windows … Read more
So , this is what I did and it worked for me – HttpRequestBase request = new HttpGet(uri); request.addHeader(“Cookie”, getCookieFromAppCookieManager(uri.toString())); Now the implmentation for the getCookieFromAppCookieManager is as follows – The method gets the cookies for a given URL from the application CookieManager. The application CookieManager manages the cookies used by an application’s WebView instances. … Read more
Create a GestureListener and a GestureDetector. Call the GestureDetector.onTouchEvent by overriding the webview’s onTouchEvent. You can also just override the Activity onTouchEvent btw. I can post some code if you need. Edit: Code as requested. public class Main extends Activity { /** Called when the activity is first created. */ @Override public void onCreate(Bundle savedInstanceState) … Read more