Calling AddView in a JavaScriptInterface class

I'm trying to add a textview dynamically to a linear layout. But there is a problem.

In my button, this code works very well:

TextView ASDF = (TextView) getLayoutInflater().inflate(R.layout.note_date, null);
ASDF.setText("TEST");
HomeContainer.addView(ASDF);

But when I try to add this view in a function which called by a JavaScriptInterface class, it does not work. I am using @JavaScriptInterface in order to get my webview's page source. And briefly, I am trying to add new textviews to my layout when web page is loaded in my webview.

So it is like:

public class WebAppInterface
{
     Context mContext;
     WebAppInterface(Context c) {mContext = c;}

     @JavascriptInterface
     public void GetHTML(String html)
     {
         ...
         ...
         TextView ASDF = (TextView) getLayoutInflater().inflate(R.layout.note_date, null);
         ASDF.setText("TEST");
         HomeContainer.addView(ASDF);
     }
}

When I check, I see that webview's source is correct, and also ASDF is not returned null by inflate(), then problem is about addView, I think.

How can I fix that problem?

EDIT: Tried this one, did not work:

TextView ASDF = (TextView) getLayoutInflater().from(this.getParent()).inflate(R.layout.note_nick, null);
ASDF.setText("TEST");
((MainActivity)this.getParent()).HomeContainer.addView(ASDF);

EDIT:

Solved, Thanks to @SimonSays, This will solve your problem:

        runOnUiThread(new Runnable()
        {
            public void run()
            {
                TextView ASDF = (TextView) getLayoutInflater().inflate(R.layout.note_date, null);
                ASDF.setText("TEST");
                HomeContainer.addView(ASDF);
            }
        });