Loading existing .html file with android WebView

Android Problem Overview

I did try samples, demos from Google codes and other resources with WebView, but when i try to do it in my own code, it doesn't work for me.

I want to load myfile.html which i put in assets folder, and using:

private WebView myWebView;

myWebView.loadUrl("file:///android_assets/myfile.html");

On emulator shows error

> The web page at file:///android_assets/myfile.html could not be > loaded as: The requested file was not found. > /android_assets/myfile.html

When i put that file to res/raw/ folder and using:

myWebView.loadUrl("file:///android_res/raw/myfile.html");

then only emulator android 2.2 API level 8 can load the file probably, other older versions show the same error. Am i missing something?

Is there any way of loading an existing .html file in the application package which works on all API versions ?

Android Solutions

Solution 1 - Android

ok, that was my very stupid mistake. I post the answer here just in case someone has the same problem.

The correct path for files stored in assets folder is file:///android_asset/* (with no "s" for assets folder which i was always thinking it must have a "s").

And, mWebView.loadUrl("file:///android_asset/myfile.html"); works under all API levels.

I still not figure out why mWebView.loadUrl("file:///android_res/raw/myfile.html"); works only on API level 8. But it doesn't matter now.

Solution 2 - Android

If your structure should be like this:

/assets/html/index.html

/assets/scripts/index.js

/assets/css/index.css

Then just do ( https://stackoverflow.com/questions/1002085/android-webview-handling-orientation-changes/27020832#27020832 )

    if(WebViewStateHolder.INSTANCE.getBundle() == null) { //this works only on single instance of webview, use a map with TAG if you need more
        webView.loadUrl("file:///android_asset/html/index.html");
    } else {
        webView.restoreState(WebViewStateHolder.INSTANCE.getBundle());
    }

Make sure you add

    WebSettings webSettings = webView.getSettings();
    webSettings.setJavaScriptEnabled(true);
    webSettings.setJavaScriptCanOpenWindowsAutomatically(true);
    if(android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.JELLY_BEAN) {
        webSettings.setAllowFileAccessFromFileURLs(true);
        webSettings.setAllowUniversalAccessFromFileURLs(true);
    }

Then just use urls

<html>
<head>
    <meta charset="utf-8">
    <title>Zzzz</title>
    <script src="../scripts/index.js"></script>
    <link rel="stylesheet" type="text/css" href="../css/index.css">

Solution 3 - Android

paste your .html file in assets folder of your project folder. and create an xml file in layout folder with the fol code: my.xml:

<WebView  xmlns:android="http://schemas.android.com/apk/res/android"
  android:id="@+id/webview"
  android:layout_width="fill_parent"
  android:layout_height="fill_parent"
    />

add fol code in activity

setContentView(R.layout.my);
    WebView mWebView = null;
    mWebView = (WebView) findViewById(R.id.webview);
    mWebView.getSettings().setJavaScriptEnabled(true);
    mWebView.loadUrl("file:///android_asset/new.html"); //new.html is html file name.

Solution 4 - Android

Copy and Paste Your .html file in the assets folder of your Project and add below code in your Activity on onCreate().

        WebView view = new WebView(this);
		view.getSettings().setJavaScriptEnabled(true);
		view.loadUrl("file:///android_asset/**YOUR FILE NAME**.html");
		view.setBackgroundColor(Color.TRANSPARENT);
		setContentView(view);

Solution 5 - Android

You could read the html file manually and then use loadData or loadDataWithBaseUrl methods of WebView to show it.

Solution 6 - Android

The debug compilation is different from the release one, so:

Consider your Project file structure like that [this case if for a Debug assemble]:

src
  |
  debug
      |
      assets
           |
           index.html

You should call index.html into your WebView like:

web.loadUrl("file:///android_asset/index.html");

So forth, for the Release assemble, it should be like:

src
  |
  release
        |
        assets
             |
             index.html

>The bellow structure also works, for both compilations [debug and release]:

src
  |
  main
     |
     assets
          |
          index.html

Content Type	Original Author	Original Content on Stackoverflow
Question	laph	View Question on Stackoverflow
Solution 1 - Android	laph	View Answer on Stackoverflow
Solution 2 - Android	EpicPandaForce	View Answer on Stackoverflow
Solution 3 - Android	Naresh	View Answer on Stackoverflow
Solution 4 - Android	Arunkumar	View Answer on Stackoverflow
Solution 5 - Android	Lachezar	View Answer on Stackoverflow
Solution 6 - Android	PYK	View Answer on Stackoverflow