Open Android activity on HTML button click in web view

Question

I have an Android program to display an HTML page in a web view. The HTML page exists locally in "asset/www/index.html".

I want to put a button on the HTML page and open a new activity when the button is clicked.

Here is the Java code:

public class HelloWebApp extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        WebView webView = (WebView)findViewById(R.id.webView);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.setWebChromeClient(new WebChromeClient());
        webView.loadUrl("file:///android_asset/www/index.html");
    }
}

MFP · Accepted Answer · 2015-03-31 11:08:18Z

1

You have to pass url on button click from html like below,

index.html

<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width; user-scalable=0;" />
<script type="text/javascript" charset="utf-8" src="jquery-2.0.0.min.js"></script>
<script type="text/javascript" charset="utf-8" src="quantize.js"></script>

<title>My HTML</title>
</head>
<body>
<h1>My HTML</h1>
<INPUT TYPE="button" value="Test" onClick="window.location='Navigation://OpenNativeScreen'">
</body>
</html>

Now you will get the that url in shouldOverrideUrlLoading method of web view when button click.see the below code,

MainActivity.java

public class MainActivity extends Activity {

WebView myBrowser;

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.dropdown_html);
    myBrowser = (WebView) findViewById(R.id.mybrowser);
    myBrowser.setWebViewClient(new MyBrowser());
    myBrowser.getSettings().setJavaScriptEnabled(true);
    myBrowser.loadUrl("file:///android_asset/www/index.html");
}

private class MyBrowser extends WebViewClient {

    @Override
    public boolean shouldOverrideUrlLoading(WebView view, String url) {
        if (url.equals("Navigation://OpenNativeScreen")) {
            startActivity(new Intent(MainActivity.this,SecondActivity.class));
            finish();
            return true;
        }
        return false;
    }       
   }
 }

edited Mar 31, 2015 at 11:08

answered Mar 31, 2015 at 10:53

MFP

1,14110 silver badges24 bronze badges

Sign up to request clarification or add additional context in comments.

8 Comments

Somnath Pal Over a year ago

LogCat: Error opening trace file: No such file or directory. In Emulator: Webpage not available...

MFP Over a year ago

where you have put your html file?

MFP Over a year ago

put your file in asstes folder and write the url file:///android_asset/index.html instead of file:///android_asset/www/index.html

Somnath Pal Over a year ago

Did that...still same result. "Webpage not available". Its not exiting from the webview. It should exit webview and open a new activity.

MFP Over a year ago

have you remove WWW from the url ?

|

Collectives™ on Stack Overflow

Open Android activity on HTML button click in web view

1 Answer 1

8 Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

8 Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related