volume – Page 2 – Tarik Billa

Using SeekBar to Control Volume in android?

July 22, 2023 by Tarik

Please look at below code . It solves your problem. import android.app.Activity; import android.content.Context; import android.media.AudioManager; import android.os.Bundle; import android.widget.SeekBar; import android.widget.SeekBar.OnSeekBarChangeListener; public class TestExample extends Activity { /** Called when the activity is first created. */ private SeekBar volumeSeekbar = null; private AudioManager audioManager = null; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setVolumeControlStream(AudioManager.STREAM_MUSIC); … Read more

Get System Volume iOS

May 15, 2023 by Tarik

Update for Swift let vol = AVAudioSession.sharedInstance().outputVolume The audio session can provide output volume (iOS >= 6.0). float vol = [[AVAudioSession sharedInstance] outputVolume]; NSLog(@”output volume: %1.2f dB”, 20.f*log10f(vol+FLT_MIN));

Docker mount to folder overriding content

May 12, 2023 by Tarik

First of all, docker volumes or bind mounts behave like linux mounts. If the host volume/mount exists and contains files it will “override” whatever is in the container. If not the container files will be mirrored onto the host volume/mount and the container folder and the host will be in sync. In both cases editing … Read more

Listen to volume buttons in background service?

May 6, 2023 by Tarik

It is possible. Use code below (for newer Android versions, especially Marshmallow, see bottom of the answer): public class SettingsContentObserver extends ContentObserver { int previousVolume; Context context; public SettingsContentObserver(Context c, Handler handler) { super(handler); context=c; AudioManager audio = (AudioManager) context.getSystemService(Context.AUDIO_SERVICE); previousVolume = audio.getStreamVolume(AudioManager.STREAM_MUSIC); } @Override public boolean deliverSelfNotifications() { return super.deliverSelfNotifications(); } @Override public void … Read more

AVAudioPlayer fade volume out

May 4, 2023 by Tarik

Here’s how I’m doing it: -(void)doVolumeFade { if (self.player.volume > 0.1) { self.player.volume = self.player.volume – 0.1; [self performSelector:@selector(doVolumeFade) withObject:nil afterDelay:0.1]; } else { // Stop and get the sound ready for playing again [self.player stop]; self.player.currentTime = 0; [self.player prepareToPlay]; self.player.volume = 1.0; } } . 11 years later: do note that setVolume#fadeDuration now … Read more

How do you get/set media volume (not ringtone volume) in Android?

April 25, 2023 by Tarik

private AudioManager audio; Inside onCreate: audio = (AudioManager) getSystemService(Context.AUDIO_SERVICE); Override onKeyDown: @Override public boolean onKeyDown(int keyCode, KeyEvent event) { switch (keyCode) { case KeyEvent.KEYCODE_VOLUME_UP: audio.adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_RAISE, AudioManager.FLAG_SHOW_UI); return true; case KeyEvent.KEYCODE_VOLUME_DOWN: audio.adjustStreamVolume(AudioManager.STREAM_MUSIC, AudioManager.ADJUST_LOWER, AudioManager.FLAG_SHOW_UI); return true; default: return false; } }

How to display a 3D plot of a 3D array isosurface in matplotlib mplot3D or similar?

April 11, 2023 by Tarik

Just to elaborate on my comment above, matplotlib’s 3D plotting really isn’t intended for something as complex as isosurfaces. It’s meant to produce nice, publication-quality vector output for really simple 3D plots. It can’t handle complex 3D polygons, so even if implemented marching cubes yourself to create the isosurface, it wouldn’t render it properly. However, … Read more

Is there a broadcast action for volume changes?

April 6, 2023 by Tarik

There is no broadcast action, but I did find you can hook up a content observer to get notified when the settings change, volume of streams being some of those settings. Register for the android.provider.Settings.System.CONTENT_URI to be notified of all settings changes: mSettingsContentObserver = new SettingsContentObserver( new Handler() ); this.getApplicationContext().getContentResolver().registerContentObserver( android.provider.Settings.System.CONTENT_URI, true, mSettingsContentObserver ); The … Read more

How to get audio volume level, and volume changed notifications on iOS?

March 28, 2023 by Tarik

Any chance you did your signature wrong for the volumeChanged: method? This worked for me, dumped in my appdelegate: – (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(volumeChanged:) name:@”AVSystemController_SystemVolumeDidChangeNotification” object:nil]; } – (void)volumeChanged:(NSNotification *)notification { float volume = [[[notification userInfo] objectForKey:@”AVSystemController_AudioVolumeNotificationParameter”] floatValue]; // Do stuff with volume } My volumeChanged: method gets hit every … Read more

Android: MediaPlayer setVolume function

March 11, 2023 by Tarik

This function is actualy wonderful. Thanks to it you can create a volume scale with any number of steps! Let’s assume you want 50 steps: int maxVolume = 50; Then to set setVolume to any value in this range (0-49) you do this: float log1=(float)(Math.log(maxVolume-currVolume)/Math.log(maxVolume)); yourMediaPlayer.setVolume(log1,log1); //set volume takes two paramater Nice and easy! And … Read more