1 /* 2 * Copyright 2018 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 17 package androidx.leanback.preference; 18 19 import static androidx.annotation.RestrictTo.Scope.LIBRARY_GROUP; 20 21 import android.app.Fragment; 22 import android.transition.Transition; 23 import android.view.Gravity; 24 25 import androidx.annotation.RequiresApi; 26 import androidx.annotation.RestrictTo; 27 import androidx.leanback.transition.FadeAndShortSlide; 28 29 /** 30 * @hide 31 */ 32 @RequiresApi(21) 33 @RestrictTo(LIBRARY_GROUP) 34 public class LeanbackPreferenceFragmentTransitionHelperApi21 { 35 36 public static void addTransitions(Fragment f) { 37 final Transition transitionStartEdge = new FadeAndShortSlide(Gravity.START); 38 final Transition transitionEndEdge = new FadeAndShortSlide(Gravity.END); 39 40 f.setEnterTransition(transitionEndEdge); 41 f.setExitTransition(transitionStartEdge); 42 f.setReenterTransition(transitionStartEdge); 43 f.setReturnTransition(transitionEndEdge); 44 } 45 46 47 private LeanbackPreferenceFragmentTransitionHelperApi21() { 48 } 49 } 50
