Scrollable TextView

In the Java source code, after registering your TextView set the movement method:

Example:

tv_var = (TextView) findViewById(R.id.tv_e);

tv_var.setMovementMethod(ScrollingMovementMethod.getInstance());

Also, in the layout for the TextView XML layout file add a scrollbar style attribute:

Example:

android:scrollbarStyle="insideInset"

Note: The scrollbars appear only if the text in the text view exceeds the layout_height.