You don't need to use a ScrollView actually.

Just set the

android:scrollbars = "vertical"

properties of your TextView in your layout's xml file.

Then use:

yourTextView.setMovementMethod(new ScrollingMovementMethod());

in your code.

Bingo, it scrolls!

This is how I did it purely in XML:

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent">    <ScrollView        android:id="@+id/SCROLLER_ID"        android:layout_width="fill_parent"        android:layout_height="wrap_content"        android:scrollbars="vertical"        android:fillViewport="true">        <TextView            android:id="@+id/TEXT_STATUS_ID"            android:layout_width="fill_parent"            android:layout_height="fill_parent"            android:layout_weight="1.0"/>    </ScrollView></LinearLayout>

NOTES:

1. android:fillViewport="true" combined with android:layout_weight="1.0" will make the textview take up all available space.

2. When defining the Scrollview, DO NOT specify android:layout_height="fill_parent" otherwise the scrollview doesn't work! (this has caused me to waste an hour just now! FFS).

PRO TIP:

To programmatically scroll to the bottom after appending text, use this:

mTextStatus = (TextView) findViewById(R.id.TEXT_STATUS_ID);mScrollView = (ScrollView) findViewById(R.id.SCROLLER_ID);private void scrollToBottom(){    mScrollView.post(new Runnable()    {        public void run()        {            mScrollView.smoothScrollTo(0, mTextStatus.getBottom());        }    });}

All that is really necessary is the setMovementMethod(). Here's an example using a LinearLayout.

File main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:orientation="vertical"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    ><TextView    android:id="@+id/tv1"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:text="@string/hello"    /></LinearLayout>

File WordExtractTest.java

public class WordExtractTest extends Activity {    TextView tv1;    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.main);        tv1 = (TextView)findViewById(R.id.tv1);        loadDoc();    }    private void loadDoc() {        String s = "";        for(int x=0; x<=100; x++) {            s += "Line: " + String.valueOf(x) + "\n";        }        tv1.setMovementMethod(new ScrollingMovementMethod());        tv1.setText(s);    }}