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/*
* Copyright (C) 2010 ZXing authors
*
* 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.google.zxing.client.android;
import android.annotation.SuppressLint;
import android.app.Activity;
import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.media.AudioAttributes;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Build;
import android.os.Vibrator;
import android.util.Log;
import java.io.IOException;
/**
* Manages beeps and vibrations.
*/
public final class BeepManager {
private static final String TAG = BeepManager.class.getSimpleName();
private static final float BEEP_VOLUME = 0.10f;
private static final long VIBRATE_DURATION = 200L;
private final Context context;
private boolean beepEnabled = true;
private boolean vibrateEnabled = false;
public BeepManager(Activity activity) {
activity.setVolumeControlStream(AudioManager.STREAM_MUSIC);
// We do not keep a reference to the Activity itself, to prevent leaks
this.context = activity.getApplicationContext();
}
public boolean isBeepEnabled() {
return beepEnabled;
}
/**
* Call updatePrefs() after setting this.
*
* If the device is in silent mode, it will not beep.
*
* @param beepEnabled true to enable beep
*/
public void setBeepEnabled(boolean beepEnabled) {
this.beepEnabled = beepEnabled;
}
public boolean isVibrateEnabled() {
return vibrateEnabled;
}
/**
* Call updatePrefs() after setting this.
*
* @param vibrateEnabled true to enable vibrate
*/
public void setVibrateEnabled(boolean vibrateEnabled) {
this.vibrateEnabled = vibrateEnabled;
}
@SuppressLint("MissingPermission")
public synchronized void playBeepSoundAndVibrate() {
if (beepEnabled) {
playBeepSound();
}
if (vibrateEnabled) {
Vibrator vibrator = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
if (vibrator != null) {
vibrator.vibrate(VIBRATE_DURATION);
}
}
}
public MediaPlayer playBeepSound() {
MediaPlayer mediaPlayer = new MediaPlayer();
if (Build.VERSION.SDK_INT >= 21) {
mediaPlayer.setAudioAttributes(new AudioAttributes.Builder().setContentType(
AudioAttributes.CONTENT_TYPE_MUSIC).build());
} else {
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
}
mediaPlayer.setOnCompletionListener(mp -> {
mp.stop();
mp.reset();
mp.release();
});
mediaPlayer.setOnErrorListener((mp, what, extra) -> {
Log.w(TAG, "Failed to beep " + what + ", " + extra);
// possibly media player error, so release and recreate
mp.stop();
mp.reset();
mp.release();
return true;
});
try {
AssetFileDescriptor file = context.getResources().openRawResourceFd(R.raw.zxing_beep);
try {
mediaPlayer.setDataSource(file.getFileDescriptor(), file.getStartOffset(), file.getLength());
} finally {
file.close();
}
mediaPlayer.setVolume(BEEP_VOLUME, BEEP_VOLUME);
mediaPlayer.prepare();
mediaPlayer.start();
return mediaPlayer;
} catch (IOException ioe) {
Log.w(TAG, ioe);
mediaPlayer.reset();
mediaPlayer.release();
return null;
}
}
}
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