Is there a way I can edit the content either to add to or create from scratch via the java? I haven't been able to find any examples.
You should look at the WebView documentation here.
Among other great bits of information there, you'll find:
// OR, you can also load from an HTML string:
String summary = "<html><body>You scored <b>192</b> points.</body></html>";
webview.loadData(summary, "text/html; charset=utf-8", "utf-8");
// ... although note that there are restrictions on what this HTML can do.
// See the JavaDocs for loadData() and loadDataWithBaseURL() for more info.
very close to the top of the page.
WebView.loadData can be passed a straight HTML string. I use a "page" i create from scratch in my app that is just formatted with HTML
Related
I have the URL of a webpage to be displayed into a webview in my Android app. Before showing this page i want to clear the html code of this page from some tag (such as the header, footer, ecc..) in order to show only few information. How can i do it? I tried to solve the issue working with JSoup but i can't understand how to create and pass the "new page" to the webview. Anybody can help me?
EDIT
I cleaned the html code useless through jsoup libraries. Then, always by mean of these, i get head and body content and finally i showing the "cleared" web page through these lines:
headURL = doc.select("head").outerHtml();
bodyURL = doc.select("body").outerHtml();
webview.loadData( "<html>"+headURL+bodyURL+"</html>" , "text/html", "charset=UTF-8");
webview.setWebViewClient(new DisPlayWebPageActivityClient());
The view shows the new page but do not load css files specified in the head(that has not been touched). Who can say me why?
You can fetch the WebPage you want to display as a string, parse and remove whatever you don't want and then load this string as data in your webview.
Something like:
String webContent = fetchPage(url);
String cleanedWebContent = cleanUp(webContent);
webView.loadData(cleanedWebContent, "text/html", "UTF-8");
Of course, you will need to implement fetchPage and cleanUp as they are not Android methods
Some of the not-show characters:
ḍ - ḍ
ḥ - ḥ
ḫ - ḫ
ḳ - ḳ
All the characters that not shown in Android WebView, HTML Entity's are greater than 7000.
I tried the solution below but it didn't work.
WebSettings settings = myWebView.getSettings();
settings.setDefaultTextEncodingName("utf-8");
myWebView.loadDataWithBaseURL(null, "#ḍḥḳ#", "text/html", "utf-8", null);
It showed in WebView : " "
I'll be very thankful for any advice.
Using entities for such symbols isn't best idea at all.
You should use UTF-8, which can hold virtually any character. For solution, you've showed (that doesn't seem to work) -- make yourself sure, that either document content or string, you're passing is actually encoded in UTF-8. It's not just setting the encoding, but actually encoding correctly the file as well.
And don't mix up entities with UTF-8. Either use one or another solution to encode special characters.
I had Database in which data stored in hindi as \u092e\u0948\u0902 \u0924\ and setting that content to webview using below.
webview1.loadData(hindi_content, "text/html", "UTF-8");
But it will display as
I don't know why that's happening. Any one please suggest. how to fix that !
This happens because of a bug with the encoding parameter of loadData in most Android versions. This parameter is ignored for some reason so the UTF-8 based hindi characters will not be rendered.
To fix this you can use one of the following alternatives.
webview1.loadData(hindi_content, "text/html; charset=UTF-8", null);
webview1.loadDataWithBaseURL(null, hindi_content, "text/html", "utf-8", null);
This is a duplicate of this answer:
You will also need to unescape those sequences and to do that refer to How to Unescape Unicode in Java
Rendering UTF-8 in a WebView using loadData has been broken in some form or fashion forever.
Issue 1733
Use loadDataWithBaseURL instead of loadData.
// Pretend this is an html document with those three characters
String scandinavianCharacters = "øæå";
// Won't render correctly
webView.loadData(scandinavianCharacters, "text/html", "UTF-8");
// Will render correctly
webView.loadDataWithBaseURL(null, scandinavianCharacters, "text/html", "UTF-8", null);
Now the part that is truly annoying is that on the Samsung Galaxy S II (4.0.3) loadData() works just fine, but testing on the Galaxy Nexus (4.0.2) the multi-byte characters are garbled unless you use loadDataWithBaseURL(). WebView Documentation
you will need to use font in order to support hindi (Hindi language is not yet fully supported by android)
create Singleton instance of Typeface and invoke createFromAsset();
and add it to WebSettings like this
WebSettings webSettings = webView.getSettings();
webSettings.setFixedFontFamily(InstaceOFTypeFace);
Finally I have come up with the solution of Loading hindi content to the webview.
I had simply change my loading string and unfortunately it will work.
webview.loadData(Hindi_css, "text/html; charset=UTF-8", null);
Thank you all for your effort. :)
You can use this one also.
String uri= Uri.encode(html file/url);
webView.loadUrl(uri);
may be this will help you.
http://stackoverflow.com/questions/3479833/is-it-possible-to-get-the-html-code-from-webview
got many links to get the html code from webview, but need to manipulate it and then again load it back.
Is it possible to do that.if yes, please give some ideas.
I have not that much idea of java script.
you can load from an HTML string:
String summary = "<html><body>You scored <b>192</b> points.</body></html>";
webview.loadData(summary, "text/html", null);
Got it:
webview.loadUrl("javascript:document.getElementById(\"N\").value = 'dfdfdfd';"+
"document.getElementById(\"Pass\").value = 'fdfdfde'");
where "N" and "Pass" are control names in the html
I have done it in onPageFinished().
If a page has a URL or a phone number on it that isn't a link is there any way to have WebView recognize it and automatically turn it into a link like you can with TextViews?
With a TextView you would simply set the android:autoLink to the desired settings:
<TextView
android:autoLink="web|phone"
... />
but I can't find any equivalent for WebView.
If you are loading your own (web) content from a String, then you can do something like this:
final String content = "My email is: firstname#email.com ...";
Spannable sp = new SpannableString(content);
Linkify.addLinks(sp, Linkify.ALL);
final String html = "<body>" + Html.toHtml(sp) + "</body>";
myWebView.loadData(html, "text/html", "utf-8");
I don't know about any way which would make this work just by changing a setting, but a workaround would be to wait until the web page finishes loading and then do:
yourWebView.loadUrl("javascript:(function(){ /* code that creates links */ })()");
This will inject javaScript into the already loaded web page.
There's a slightly longer example available here: http://lexandera.com/2009/01/injecting-javascript-into-a-webview/.
You can find the JavaScript source for creating links if you take a look at the source of Linkify script for Greasemonkey (it's a plugin for Firefox in case you're not familiar with it). I believe it comes with the default install.