public void OnAudioFocusChange([GeneratedEnum] AudioFocus focusChange)
{
switch (focusChange)
{
case AudioFocus.Gain:
musicaplayer.SetVolume(1.0f, 1.0f); //Turn it up!
break;
case AudioFocus.Loss:
//We have lost focus stop!
musicaplayer.SetVolume(0f, 0f); //turn it down!
break;
case AudioFocus.LossTransient:
//We have lost focus for a short time, but likely to resume so pause
musicaplayer.SetVolume(0f, 0f);
break;
case AudioFocus.LossTransientCanDuck:
//We have lost focus but should till play at a muted 10% volume
if (musicaplayer.IsPlaying)
{
musicaplayer.SetVolume(.1f, .1f); //turn it down!
}
break;
}
}
private void ToggleMute()
{
if (IsMuted)
{
_player?.SetVolume(0, 0);
}
else
{
var volume = (float)Volume / 100;
_player?.SetVolume(volume, volume);
}
}
///<Summary>
/// Sets the playback volume as a double between 0 and 1
/// Sets both left and right channels
///</Summary>
void SetVolume(double volume, double balance)
{
volume = Math.Max(0, volume);
volume = Math.Min(1, volume);
balance = Math.Max(-1, balance);
balance = Math.Min(1, balance);
// Using the "constant power pan rule." See: http://www.rs-met.com/documents/tutorials/PanRules.pdf
var left = Math.Cos((Math.PI * (balance + 1)) / 4) * volume;
var right = Math.Sin((Math.PI * (balance + 1)) / 4) * volume;
player?.SetVolume((float)left, (float)right);
}
public void OnSensorChanged(SensorEvent e)
{
Toast.MakeText(this, "CHANGE", ToastLength.Long).Show();
play = !play;
if (play)
{
if (!MP.IsPlaying)
{
MP.Start();
}
Toast.MakeText(this, "START", ToastLength.Long).Show();
MP.SetVolume(0.0f, 1.0f);
}
else
{
MP.Pause();
Toast.MakeText(this, "STOP", ToastLength.Long).Show();
}
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
// Set our view from the "main" layout resource
SetContentView(Resource.Layout.Main);
sensorManager = (SensorManager)GetSystemService(SensorService);
mp = MediaPlayer.Create(this, Resource.Raw.test);
volume = 0.5f;
mp.SetVolume(volume, volume);
SeekBar seekBar = FindViewById <SeekBar>(Resource.Id.seekBar);
seekBar.SetOnSeekBarChangeListener(this);
seekBar.Progress = (int)(volume * 100);
textView = FindViewById <TextView>(Resource.Id.textView);
textView.Text = string.Format("Volume {0}\nProgress {1}", volume, seekBar.Progress);
}
public void OnProgressChanged(SeekBar seekBar, int progress, bool fromUser)
{
volume = seekBar.Progress / 100f;
mp.SetVolume(volume, volume);
}
public void OnProgressChanged(SeekBar seekBar, int progress, bool fromUser)
{
volume = seekBar.Progress / 100f;
mp.SetVolume(volume, volume);
textView.Text = string.Format("Volume {0}\nProgress {1}", volume, seekBar.Progress);
}
void InitBeepSound()
{
if(playBeep && mediaPlayer == null)
{
VolumeControlStream = Android.Media.Stream.Music;
mediaPlayer = new MediaPlayer();
mediaPlayer.SetAudioStreamType(Android.Media.Stream.Music);
mediaPlayer.SetOnCompletionListener(beepListener);
var file = Resources.OpenRawResourceFd(BeepResource);
try{
mediaPlayer.SetDataSource(file.FileDescriptor, file.StartOffset, file.Length);
file.Close();
mediaPlayer.SetVolume(0.1f, 0.1f);
mediaPlayer.Prepare();
}
catch(Java.IO.IOException e)
{
mediaPlayer = null;
}
}
}
