1 /* 2 * Copyright (C) 2024 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.hardware.display; 18 19 /** 20 * Interface for notifying the display owner about brightness changes. 21 * 22 * @hide 23 */ 24 oneway interface IBrightnessListener { 25 /** 26 * Called when the display's brightness has changed. 27 * 28 * @param brightness the new brightness of the display. Value of {@code 0.0} indicates the 29 * minimum supported brightness and value of {@code 1.0} indicates the maximum supported 30 * brightness. 31 */ onBrightnessChanged(float brightness)32 void onBrightnessChanged(float brightness); 33 } 34