1 /* 2 * Copyright (C) 2022 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 distributed under the 11 * License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 12 * KIND, either express or implied. See the License for the specific language governing 13 * permissions and limitations under the License. 14 */ 15 package com.android.systemui.unfold.updates 16 17 import java.util.concurrent.Executor 18 19 interface FoldProvider { registerCallbacknull20 fun registerCallback(callback: FoldCallback, executor: Executor) 21 fun unregisterCallback(callback: FoldCallback) 22 23 fun interface FoldCallback { 24 fun onFoldUpdated(isFolded: Boolean) 25 } 26 } 27