Android Binding JavaScript code to Android code not Working?

Question

I have used JavaScript code to android using this one THIS DOCUMENT but i'am not getting String value why i am facing this problem ,any one have idea on this one, help me.

This is my code

 webview = (WebView) findViewById(R.id.webView);             
    webview.getSettings().setJavaScriptEnabled(true);   

    String html = " <input type='button' value='Say hello' onClick='showAndroidToast('Hello Android!')' />" +
            "<script type='text/javascript'>   function showAndroidToast(toast) { Android.showToast(toast); }</script>";     

    webview.loadDataWithBaseURL(null, html, "text/html", "UTF-8", null);    
    webview.addJavascriptInterface(new WebAppInterface(MainActivity.this), "Android");

And WebAppInterface class like this

public class WebAppInterface {
Context mContext;

/** Instantiate the interface and set the context */
WebAppInterface(Context c) {
    mContext = c;
}

/** Show a toast from the web page */
@JavascriptInterface
public void showToast(String toast) {
    Log.i(" ", " " + toast);
    Toast.makeText(mContext, toast, Toast.LENGTH_LONG).show();

}
}

Boris Strandjev · Accepted Answer · 2013-04-19 07:41:15Z

2

This part does not seem very viable:

'showAndroidToast('Hello Android!')'

Your quotes will not be closed correctly. Use escaped double quotes instead for the outer:

\"showAndroidToast('Hello Android!')\"

answered Apr 19, 2013 at 7:41

Boris Strandjev

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2 Comments

NagarjunaReddy Over a year ago

in that tutorial i will see this one Caution: If you've set your targetSdkVersion to 17 or higher, is it possible only 17 or highet what about lower versions

Boris Strandjev Over a year ago

@NagarjunaReddy This is basically a subject of new question. However: you can add javascript interfaces for API 8 and above. However it will not be using the annotation -it will go to ordinary class

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