XML
<TextView android:id="@+id/marqueeText" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="25sp" android:ellipsize="marquee" android:marqueeRepeatLimit="marquee_forever" android:padding="10dp" android:scrollHorizontally="true" android:singleLine="true" android:text="Hello guys !! Welcome to GeeksforGeeks Portal !!" android:textSize="20sp" android:textStyle="bold" />
Java
*****AppCompatActivity TextView txtMarquee;
Java
*****setContentView*********
txtMarquee = (TextView) findViewById(R.id.marqueeText);
// Now we will call setSelected() method
// and pass boolean value as true
txtMarquee.setSelected(true);
