| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except |
| * in compliance with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software distributed under the License |
| * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express |
| * or implied. See the License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package androidx.leanback.transition; |
| |
| import android.graphics.Rect; |
| |
| import androidx.annotation.RestrictTo; |
| |
| /** |
| * Class to get the epicenter of Transition. |
| * @hide |
| */ |
| @RestrictTo(RestrictTo.Scope.LIBRARY) |
| public abstract class TransitionEpicenterCallback { |
| |
| /** |
| * Implementers must override to return the epicenter of the Transition in screen |
| * coordinates. |
| * |
| * @param transition The transition for which the epicenter applies. |
| * @return The Rect region of the epicenter of <code>transition</code> or null if |
| * there is no epicenter. |
| */ |
| public abstract Rect onGetEpicenter(Object transition); |
| } |