EarconsPlayTask.java

/*
 * Copyright (C) 2015 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.talkback;

import android.media.SoundPool;
import android.os.AsyncTask;

/**
 * Task to play earcons in background thread
 */
public class EarconsPlayTask extends AsyncTask<Void, Integer, Boolean> {
    private SoundPool mSoundPool;
    private int soundId;
    private float volume;
    private float rate;

    public EarconsPlayTask(SoundPool soundPool,
                           int soundId,
                           float volume,
                           float rate) {
        this.mSoundPool = soundPool;
        this.soundId = soundId;
        this.volume = volume;
        this.rate = rate;
    }

    /**
     * Play earcon with given soundId in background thread
     * @param voids not using any parameters as they will passed in via constructor
     * @return if play successful or not
     */
    @Override
    protected Boolean doInBackground(Void ... voids) {
        return  mSoundPool.play(soundId, volume, volume, 0, 0, rate) != 0;
    }
}