auto-scrolling TextView in android to bring text into view

Question

I have a TextView that I\'m dynamically adding text to.

in my main.xml file I have the properties set to make my max lines 19 and scrollbar

Answer 1

Previous answers did not work correctly for me, this however works.

Create a TextView and do the following:

// ...
mTextView = (TextView)findViewById(R.id.your_text_view);
mTextView.setMovementMethod(new ScrollingMovementMethod());
// ...

Use the following function to append text to the TextView.

private void appendTextAndScroll(String text)
{
    if(mTextView != null){
        mTextView.append(text + "\n");
        final Layout layout = mTextView.getLayout();
        if(layout != null){
            int scrollDelta = layout.getLineBottom(mTextView.getLineCount() - 1) 
                - mTextView.getScrollY() - mTextView.getHeight();
            if(scrollDelta > 0)
                mTextView.scrollBy(0, scrollDelta);
        }
    }
}

Hope this helps.