1 /** 2 * Copyright (c) 2021, 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 android.service.dreams; 18 19 import android.service.dreams.IDreamOverlayClientCallback; 20 21 /** 22 * {@link IDreamOverlay} provides a way for a component to annotate a dream with additional view 23 * elements. Registered through the DreamManager, a IDreamOverlay is bound to by the dream and 24 * passed the necessary window details to participate in the user interface. 25 26 * @hide 27 */ 28 interface IDreamOverlay { 29 /** 30 * Retrieves a client the caller can use to interact with the dream overlay. 31 */ getClient(in IDreamOverlayClientCallback callback)32 void getClient(in IDreamOverlayClientCallback callback); 33 } 34