1 /** 2 * Copyright (c) 2016, 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 package com.android.car.radio.service; 17 18 import android.hardware.radio.RadioManager; 19 20 /** 21 * Interface for applications to listen for changes in the current radio state. 22 */ 23 oneway interface IRadioCallback { 24 /** 25 * Called when the current program info has changed. 26 * 27 * This might happen either as a result of tune operation or just metadata change. 28 * 29 * @param info The current program info. 30 */ 31 void onCurrentProgramInfoChanged(in RadioManager.ProgramInfo info); 32 33 /** 34 * Called when the mute state of the radio has changed. 35 * 36 * @param isMuted {@code true} if the radio is muted. 37 */ 38 void onRadioMuteChanged(boolean isMuted); 39 40 /** 41 * Called when the radio has encountered an error. 42 * 43 * @param status One of the error states in {@link RadioManager}. For example, 44 * {@link RadioManager#ERROR_HARDWARE_FAILURE}. 45 */ 46 void onError(int status); 47 } 48
