1/* 2 * Copyright (C) 2015 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License 15 */ 16 17package android.support.v17.preference; 18 19import android.support.annotation.RestrictTo; 20import android.support.v17.leanback.transition.FadeAndShortSlide; 21import android.app.Fragment; 22import android.transition.Transition; 23import android.view.Gravity; 24 25import static android.support.annotation.RestrictTo.Scope.GROUP_ID; 26 27/** 28 * @hide 29 */ 30@RestrictTo(GROUP_ID) 31public class LeanbackPreferenceFragmentTransitionHelperApi21 { 32 33 public static void addTransitions(Fragment f) { 34 final Transition transitionStartEdge = new FadeAndShortSlide(Gravity.START); 35 final Transition transitionEndEdge = new FadeAndShortSlide(Gravity.END); 36 37 f.setEnterTransition(transitionEndEdge); 38 f.setExitTransition(transitionStartEdge); 39 f.setReenterTransition(transitionStartEdge); 40 f.setReturnTransition(transitionEndEdge); 41 } 42 43 44} 45