Questions:
I created the music player app and i want to set the volume up/down programmatically .
I want to implement two another Button for increase/decrease of volume and set to the media player .
Please help me in accessing volume up/down in android.
Activity Codes :
control = (ImageView) findViewById(R.id.control);
mediaPlayer = new MediaPlayer();
mediaPlayer.setAudioStreamType(AudioManager.STREAM_MUSIC);
control.setOnClickListener(pausePlay);
control.setBackgroundResource(R.drawable.pause);
control id is my play and pause button :
{
// TODO Auto-generated method stub
// TODO Auto-generated method stub
if (playPause) {
control.setBackgroundResource(R.drawable.play);
if (mediaPlayer.isPlaying())
mediaPlayer.pause();
media.stop();
intialStage = false;
playPause = false;
} else {
control.setBackgroundResource(R.drawable.pause);
if (intialStage) {
new Player()
.execute("http://streaming.shoutcast.com/MUKILFMRADIO");
} else {
if (!mediaPlayer.isPlaying())
mediaPlayer.start();
}
playPause = true;
}
}
Layout codes:
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center">
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:id="@+id/control1"
android:layout_margin="10dp"
android:layout_gravity="center"
android:background="@drawable/decrement"
android:layout_above="@+id/latestAddedSongs"
android:layout_alignEnd="@+id/musicArtistName" />
<ImageView
android:layout_width="70dp"
android:layout_height="70dp"
android:id="@+id/control"
android:layout_margin="10dp"
android:layout_gravity="center"
android:background="@drawable/play"
android:layout_above="@+id/latestAddedSongs"
android:layout_alignEnd="@+id/musicArtistName" />
<ImageView
android:layout_width="40dp"
android:layout_height="40dp"
android:id="@+id/control2"
android:layout_margin="10dp"
android:layout_gravity="center"
android:background="@drawable/increment"
android:layout_above="@+id/latestAddedSongs"
android:layout_alignEnd="@+id/musicArtistName" />
</LinearLayout>
Give a link or tutorial about Mute/UnMute and Volume Up/Down in android Programmatically.
How to&Answers:
Create an object for audio manager
AudioManager audioManager = (AudioManager) getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
Button upButton = (Button) findViewById(R.id.upButton);
upButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//To increase media player volume
audioManager.adjustVolume(AudioManager.ADJUST_RAISE, AudioManager.FLAG_PLAY_SOUND);
}
});
Button downButton = (Button) findViewById(R.id.downButton);
downButton.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
//To decrease media player volume
audioManager.adjustVolume(AudioManager.ADJUST_LOWER, AudioManager.FLAG_PLAY_SOUND);
}
});
The above example used Button label
for volume up and down
code
@Override
public boolean dispatchKeyEvent(KeyEvent event) {
int action = event.getAction();
int keyCode = event.getKeyCode();
switch (keyCode) {
case KeyEvent.KEYCODE_VOLUME_UP:
if (action == KeyEvent.ACTION_DOWN) {
audioManager.adjustVolume(AudioManager.ADJUST_RAISE, AudioManager.FLAG_PLAY_SOUND);
}
return true;
case KeyEvent.KEYCODE_VOLUME_DOWN:
if (action == KeyEvent.ACTION_DOWN) {
audioManager.adjustVolume(AudioManager.ADJUST_LOWER, AudioManager.FLAG_PLAY_SOUND);
}
return true;
default:
return super.dispatchKeyEvent(event);
}
}
Answer：
Try below code
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
seekbar.setMax(audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC));
seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int newVolume, boolean b) {
textview.setText("Media Volume : " + newVolume);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, newVolume, 0);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {}
});
Answer：
Following up on solution of jesu, if you want to change volume within Service instead of Activity, replace:
AudioManager audioManager = (AudioManager) getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
with:
AudioManager audioManager;
audioManager = (AudioManager) YourServiceName.this.getSystemService(Context.AUDIO_SERVICE);
Answer：
if your type is AudioManager.STREAM_MUSIC： use this code ，follow phone volume button
@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_PLAY_SOUND | AudioManager.FLAG_SHOW_UI);
return true;
case KeyEvent.KEYCODE_VOLUME_DOWN:
audio.adjustStreamVolume(
AudioManager.STREAM_MUSIC,
AudioManager.ADJUST_LOWER,
AudioManager.FLAG_PLAY_SOUND | AudioManager.FLAG_SHOW_UI);
return true;
default:
break;
}
return super.onKeyDown(keyCode, event);
}
Answer：
Below code worked great
There are several streams available in Android using which audio can be managed
/** The audio stream for phone calls */
public static final int STREAM_VOICE_CALL = AudioSystem.STREAM_VOICE_CALL;
/** The audio stream for system sounds */
public static final int STREAM_SYSTEM = AudioSystem.STREAM_SYSTEM;
/** The audio stream for the phone ring */
public static final int STREAM_RING = AudioSystem.STREAM_RING;
/** The audio stream for music playback */
public static final int STREAM_MUSIC = AudioSystem.STREAM_MUSIC;
/** The audio stream for alarms */
public static final int STREAM_ALARM = AudioSystem.STREAM_ALARM;
/** The audio stream for notifications */
public static final int STREAM_NOTIFICATION = AudioSystem.STREAM_NOTIFICATION;
/** @hide The audio stream for phone calls when connected to bluetooth */
public static final int STREAM_BLUETOOTH_SCO = AudioSystem.STREAM_BLUETOOTH_SCO;
/** @hide The audio stream for enforced system sounds in certain countries (e.g camera in Japan) */
public static final int STREAM_SYSTEM_ENFORCED = AudioSystem.STREAM_SYSTEM_ENFORCED;
/** The audio stream for DTMF Tones */
public static final int STREAM_DTMF = AudioSystem.STREAM_DTMF;
/** @hide The audio stream for text to speech (TTS) */
public static final int STREAM_TTS = AudioSystem.STREAM_TTS;
Depending on your need you can change the stream here is STREAM_MUSIC example :
You can get constant value using refelction from AudioSytem class:
private int getStreamType(String streamName) {
final String streamSourceClassName = "android.media.AudioSystem";
int streamType = 0;
try {
streamType = (int) Class.forName(streamSourceClassName).getDeclaredField(streamName).get(null);
} catch (ClassNotFoundException | IllegalAccessException | NoSuchFieldException e) {
e.printStackTrace();
}
return streamType;
}
audioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE);
seekbar.setMax(audioManager.getStreamMaxVolume(AudioManager.STREAM_MUSIC));
seekbar.setOnSeekBarChangeListener(new SeekBar.OnSeekBarChangeListener() {
@Override
public void onProgressChanged(SeekBar seekBar, int newVolume, boolean b) {
textview.setText("Media Volume : " + newVolume);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, newVolume, 0);
}
@Override
public void onStartTrackingTouch(SeekBar seekBar) {}
@Override
public void onStopTrackingTouch(SeekBar seekBar) {}
});
Tags: androidandroid
