package com.alexstyl.searchtransition.transition; import android.transition.AutoTransition; import android.transition.Transition; public class FadeInTransition extends AutoTransition { private static final int FADE_IN_DURATION = 200; private FadeInTransition() { // force callers to call the factory method to instantiate this class } public static Transition createTransition() { AutoTransition transition = new AutoTransition(); transition.setDuration(FADE_IN_DURATION); return transition; } }