I view a lot of htmls with text inside, but there seems to be one html that is not displayed correctly, for some reason all the tilde characters display an unknown character, this is strictly related to that particular html document?
Since all the others htmls are viewed perfectly in webview, i guess it has nothing to do inside android studio?
Intial portion of html document
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html><head>
<link href="Content/watermark.css" rel="stylesheet" />
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Código de Proceso Penal</title></head>
<script src="Scripts/jquery-2.1.4.min.js"></script>
CADE
This happens due to fact that Webview is not able to detect encoding.
If you are using Webview loadData() or void loadDataWithBaseURL() method, try passing "UTF-8" as encoding, you can check same here, on developer.android.com..
it this doesn't work try with "iso-8859-1" or "iso-8859-15" encoding
Related
Actually I want to load complete site from internet link but i want to load css files from mobile (means not from internet). Because I want to load all page faster using internal local css file.
Example :
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="dist/css/bootstrap.min.css" />
<link rel="stylesheet" href="dist/css/font-awesome.min.css" />
</head>
</html>
So Here I want to Load "bootstrap.min.css" and "font-awesome.min.css" from mobile memory only.
My Android Code :
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
String url = "http://www.MySiteName.com/";
view = (WebView) this.findViewById(R.id.webView);
view.getSettings().setJavaScriptEnabled(true); // Enable JavaScript Support
view.setWebViewClient(new WebViewClient()); // Links open or Navigate in same webView not in Browser
view.loadUrl(url);
}
Please put CSS in assets folder, and refer to CSS by relative path, and load HTML to WebView by loadDataWithBaseURL() method:
if your css file name is mycss.css
StringBuilder data = new StringBuilder();
data .append("<HTML><HEAD><LINK href=\"mycss.css\" type=\"text/css\" rel=\"stylesheet\"/></HEAD><body>");
data .append(tables.toString());
data .append("</body></HTML>");
webView.loadDataWithBaseURL("file:///android_asset/", data .toString(), "text/html", "utf-8", null);
thank you
Because the two other answers are just copy pastas and I happened to have the same issue I will help you with my solution:
You need to specify the file path in the head section of your html file.
Pay attention to the part after href
<!DOCTYPE html>
<html lang="en">
<head>
<link rel="stylesheet" href="file:///android_asset/bootstrap.min.css" />
<link rel="stylesheet" href="file:///android_asset/font-awesome.min.css" />
</head>
</html>
I just can't get my head around why the other posters just copied and pasted and didn't even read what you were trying to tell them.
I hope this helps.
Be aware that your resources folder can be named differently.
I am working on an application in Android, where I am using a local html file which includes css files, but It won't work and I have no Idea why.
The Java code is like this:
view.loadDataWithBaseURL("file:///android_asset/", content, "text/html", "UTF-8", null);
The HTML code is like this
<head>
<meta charset="utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta name="description" content="">
<meta name="author" content="">
<title>Starter Template for Bootstrap</title>
<!-- Bootstrap core CSS -->
<link href="../css/main.css" rel="stylesheet">
<style>
</style>
The path is correct, Eclipse WebBrowser shows the html Page correct but if I test it on my Device it's without styles.
The Logcat throws the Error "Unknown Chromium Error: -6"
Thanks a lot in advance
you cannot refer to this path inside a webview. you probably need to store your css file in assets folder and refer to it dynamically:
put CSS in assets folder, do your manipulation with HTML, but refer to CSS by relative path, and load HTML to WebView by loadDataWithBaseURL() method:
webView.loadDataWithBaseURL("file:///android_asset/", htmlString, "text/html", "utf-8", null);
E.g. you have styles.css file, put it to assets folder, create HTML and load it:
StringBuilder sb = new StringBuilder();
sb.append("<HTML><HEAD><LINK href=\"styles.css\" type=\"text/css\" rel=\"stylesheet\"/></HEAD><body>");
sb.append(tables.toString());
sb.append("</body></HTML>");
webView.loadDataWithBaseURL("file:///android_asset/", sb.toString(), "text/html","utf-8", null);
from: WebView, add local .CSS file to an HTML page?
On a related note, if you're not storing the file in the assets folder and want to use relative paths, Webview on Android sometimes requires dot-slash before relative paths.
<LINK href="./styles/file.css" type="text/css" rel="stylesheet">
See this post
In your case the error -6 means FILE_NOT_FOUND, which probably due to access permission issue on your device.
You may need to put the CSS file under the same folder of your HTML files. For security consideration, webkit engine will apply same-domain policy when accessing local files. i.e. accessing sub-resource files (such as CSS, JS, images) that are not in the same folder of your main HTML file is not allowed.
I'm trying to load local html file:
WebView webView = (WebView)findViewById(R.id.webView1);
webView.getSettings().setDefaultTextEncodingName("utf-8");
webView.setWebChromeClient(new WebChromeClient());
webView.loadUrl("file:///android_asset/www/index.html");
index.html contains this:
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"/>
</head >
<body>
რაღაც ტექსტი
</body>
</html>
but it doesn't work. Can anyone help?
P.S. that text is in Georgian
Edit: I've tried loading that text using almost every possible method I've found - loadDataWithBaseURL and loadData methods didn't work either.
Closed: Here is the problem: That version of Android didn't recognize Georgian characters.
You can use HTML codes of UNICODE characters to display them in WebView.
Just replace the characters with their respective html code.
Refer here for Html codes of Georgian characters.
You can use this approach;
String start = "<html><head><meta http-equiv='Content-Type' content='text/html' charset='UTF-8' /></head><body>";
String end = "</body></html>";
webView.loadData(start + YOURCONTENT + end,"text/html; charset=UTF-8", null);
Ensure that your file is actually encoded as UTF-8.
Check if your editor save it as UTF-8. It could be the problem.
I have seen various discussions on the problem of serving WebView pages from assets, none of which seemed definitive.
I want to be able to use a webview to display html (and included css) files stored in the project assets.
I have found that wv.loadUrl("file:///android_asset/html_no_copy/demo_welcome.html") displays that file okay, but links in demo_welcome.html, either local (no url prefixing the file name) or absolute - the same form as fed to loadUrl - don't work. They get a "Web page not available" error displayed on the view.
WebView wv = (WebView)this.findViewById(R.id.splashWebView);
wv.loadUrl("file:///android_asset/html_no_copy/test.html"); // Works
or
wv.loadUrl("file:///android_asset/html_no_copy/demo_welcome.html"); // Works
But neither of the following links in demo_welcome.html work:
CLICK HERE<p>
OR HERE
I know I can get around this by writing a content provider, but that seems extreme.
I want this to work from SDK 1.6 (4) on up.
Does anyone know if this can be done with just HTML, or does one need to kluge up some code to load the data?
Well, I found something that seems to work (on 1.6 and 2.2), in spite of a warning that it would recurse.
I also discovered that a css style-sheet link inside the first and second page both work without the following intercept. Odd and it makes me a bit nervous. Thoughts?
Here's the code:
WebView wv = (WebView)this.findViewById(R.id.splashWebView);
wv.setWebViewClient(new WebViewClient() {
#Override
public boolean shouldOverrideUrlLoading(WebView view, String url)
{
view.loadUrl(url);
return true;
}
});
wv.loadUrl("file:///android_asset/html_no_copy/demo_welcome.html");
Here's the file contents:
demo_welcome.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>Demo Html</title>
<link rel="stylesheet" type="text/css" href="demo.css" />
</head>
<body>
<H1>Testing One Two Three</H1>
CLICK HERE<p>
OR HERE
</body>
</html>
test.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">
<link rel="stylesheet" type="text/css" href="test.css" />
<title>Insert title here</title>
</head>
<body>
<H1>TEST.HTML</H1>
</body>
</html>
instead of loadUrl, try using the loadDataWithBaseURL method:
wv.loadDataWithBaseURL("fake://not/needed", html, mimeType, encoding, "");
I'm trying to access the data inside the assets/css from an external HTML file.
The process goes like this:
<html>
<head>
<meta name="viewport" content="target-densitydpi=device-dpi, width=device-width, height=device-height, user-scalable=yes" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>ola</title>
<link rel="stylesheet" type="text/css" href="file:///android_asset/css/main.css" />
<link rel="stylesheet" type="text/css" href="file:///android_asset/css/sch.css" />
<script type="text/javascript" src="file:///android_asset/css/ethan.js" />
<script type="text/javascript" src="scripts/allinone.js" />
</head>
<body>
<input id="btnTest1" name="button" type="button" style="height:0px;width:0px;" />
</body>
</html>
So here the thing is that, I'm actually calling the HTML file using a link (since the HTML file is not locally present). But main.css, sch.css and ethan.js are locally present in the assets/css folder.
What I'm trying to do is to load the allinone.js which is obviously external and the other three files into the which are internal and run the script.
I found "file:///android_asset/css/main.css" but it looks like it doesn't work.
Please help....
I would be curious to know more about the use case here. My understanding is this:
You're loading an externally hosted HTML file into an Android Webview
You need to overlay some local styles/scripts, which can't be hosted on the external site along with the HTML (presumably because you're generating them dynamically).
If that's so -- and given that the logical approach you conceived of using the file:// URI does not work -- there would seem to be two options, each making use of the webView API:
Load the HTML file from the remote source, modify it, then set it as the webView's source. Locate the tag of the remote HTML and inject your local JS / CSS inline there.
Make use of the 'loadUrl' WebView method to inject your CSS/Javascript dynamically (this seems unnecessarily complicated if #1 is an option). For example:
mWebView.loadUrl("javascript:injectJavascript(js)");
where the parameter 'js' is some inline Javascript that you load within your Android code, and injectJavascript is a method in the remote HTML file that actually inserts it into your DOM. Take an analogous approach to insert your CSS ...
Admittedly these approaches are a bit hackish. Ideally you would use a custom method of the WebView class like 'addCssToDom' or something, but as far as I can see, no such methods are available.