TextView实现滚动

xml文件：

<TextView
        android:id="@+id/viewLocation"
        android:layout_width="match_parent"
        android:layout_height="120dp"
        android:hint="now location"
        android:scrollbars="vertical"
        android:fadeScrollbars="false"
        />

java代码：

viewLocation = (TextView) findViewById(R.id.viewLocation);
        viewLocation.setMovementMethod(ScrollingMovementMethod.getInstance());