com/android/systemui/statusbar/tv/micdisclosure/AudioActivityObserver.java

/*
 * Copyright (C) 2020 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 com.android.systemui.statusbar.tv.micdisclosure;

import android.content.Context;

import java.util.Set;

/**
 * A base class for implementing observers for different kinds of activities related to audio
 * recording. These observers are to be initialized by {@link AudioRecordingDisclosureBar} and to
 * report back to it.
 */
abstract class AudioActivityObserver {

    interface OnAudioActivityStateChangeListener {
        void onAudioActivityStateChange(boolean active, String packageName);
    }

    final Context mContext;

    final OnAudioActivityStateChangeListener mListener;

    AudioActivityObserver(Context context, OnAudioActivityStateChangeListener listener) {
        mContext = context;
        mListener = listener;
    }

    abstract Set<String> getActivePackages();
}