Hi I would like to know if there is a way to make the Android Webview cache changes made to the DOM of the loaded page so that when I go back to it, the previously loaded changes remain.
An example would be I'm on page A, call javascript that adds more html content (from an ajax call or w/e), and then I go to Page B. When I hit the back button to go back to page A, page A only displays what the original page load displays.
Is there any quick way around this?
Try this
WebView view = new WebView(this);
view.getSettings().setJavaScriptEnabled(true);
view.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);
view.clearCache(false);
Related
I tried refreshing my page in an android webapp using the html refresh meta tag, the page refreshes but my page content updates didn't .
How can I refresh both the page and it's content in android webview?
Just reload the url will do what you want.
either mWebView.reload() or mWebView.loadUrl(URL) is fine.
similar answer:
https://stackoverflow.com/a/2563482/1573348
I have a list and when I click on one item of the list, one HTML page is called like that:
webView.loadDataWithBaseURL("file:///android_asset/", content, "text/html", "utf-8", "about:blank");
Inside this webview, there is HTML5 video (I'm using this library https://github.com/cprcrack/VideoEnabledWebView). When I enter in full screen mode with the video, then return to the list and click on another item to load an HTML page, this page takes too long to load (like minutes).
This only happens on some 4.4.2 devices, on the emulator it loads quickly.
My hardwareAccelerated is enabled.
I found out that if I rotate the screen, the second page loads quickly. But I tried to reload the page ou setting to clear the view, but it didn't work.
Does anyone has any idea why this happens?
I'm also getting this error:
[ERROR:in_process_view_renderer.cc(193)] Failed to request GL process. Deadlock likely: 0
If your working on web view i would suggest to look on crosswalk and chromium. Its best way to bring in hardware acceleration into the project.
I am having a Webview with some HTML contains on it. If I click on any url link on that HTML based Webview I am navigated on that url. if there is again any url further I am able to nevigate to that url also. When I click on the back button I am able to get back also. But when I need to get back on the last Webview with HTML contains, it comes back with blank screen, My HTML contains on that Webview are not visiable or present. Can anyone tell me what should I include in my code to get those HTML contains back on Backbutton pressed in Webview.
I am using webview.loadDataWithBaseURL("baseurl", "html_string","text/html","UTF-8",""); to populate my Webview.
Any help will be appreciated. Thanks in advance.
Well I used this WebViewClient Interface
public boolean shouldOverrideUrlLoading(WebView view, String url)
It opens the url of my webview on the local browser of the Device. and when I press back button. it comes back on my HTML based Webpage. Hence no blank page is shown now on comming back on the webview from the URL of the webview.
Thanks to all how commented on this post.
I have a simple Activity to show a webview and a back button. Here is the code that I use to load the URL that I want in the webview.
The webpage that I am loading in on a server online, it has a few form elements plus a few links that when clicked I need to keep loading them inside the webview.
Now the problem is very often the page loads without the images, I can see the form elements though or only blank white page. I am testing this on wifi so internet is working fine.
Why is it not loading images and how can I make sure it does? I even tried making all images in the html page have absolute paths, but that did not help.
Later Edit: I found out what was causing this. Maybe others will run into this. I had this in the manifest file android:hardwareAccelerated="true". After removing it the content inside all the webviews is loading smoothly.
Second later edit: It is terrible, I get the initial page load now, but forms are not submitting and after some going back and forward to the webview, new images do not load anymore. Is it a memory problem? How do I make it start fresh every time?
WebView wv = (WebView) findViewById(R.id.webview);
wv.getSettings().setBuiltInZoomControls(false);
wv.getSettings().setJavaScriptEnabled(true);
wv.setWebViewClient(new WebViewClient());
wv.loadUrl(filepath);
I am working on a webview with local html file as source.
I am trying to copy a Webview on to another webview.
If I do this.
WebView1.loadUrl(webView2.getUrl());
I works, but it is same as loading the webview again,which i dont want. If I do this
WebView1=WebView2;
It doesn't copy. The content of WebView1 doesn't change. Am I doing anything wrong.
You'll have to remove the current WebView from your Layout (by calling removeView(WebView1) on it's container) and then add the new WebView to it (addView(WebView2) on the same container). Obviously you'll have to take care that it gets inserted at the right place again. Easiest way would be to just wrap a FrameLayout around it and call said methods on it.
Can't promise you that this will work though, since I don't know how WebView behaves offscreen.