AndroidWebview.java

public class AndroidWebview extends CordovaWebView {
  
  
  /**
  * Use webview.sendJavascript is deprecated in latest cordova-android
  * Insteadof, pass a JS callback like a success function in cordova.exec()
  * cordova plugin JS Bridge, and execute a callbackContext.sendPluginResult(result);
  * in Java.
  * 
  * Use this, only if you wish call JS from Java webview/cordova app in old
  * Android versions
  * 
  * @see http://d.hatena.ne.jp/yohpapa/20130819/1376947942
  * @see https://github.com/ionic-team/ionic-plugin-keyboard/pull/40/files
  */
  @Deprecated
  @TargetApi(Build.VERSION_CODES.KITKAT)
	private void sendJavascript(final String javascript) {

		webView.getView().post(new Runnable() {
		    @Override
		    public void run() {
				if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
					webView.sendJavascript(javascript);
				} else {
					webView.loadUrl("javascript:" + javascript);
				}
		    }
		});
	}
}