Develop Reference

How to know if the media player is opening in background?

I am using Android 5.0 and 6.0. I want to check my default media player (calls from intent) is running/playing in background. Currently, I used the function
AudioManager mAudioManager = (AudioManager) getSystemService(getApplicationContext().AUDIO_SERVICE);
if(mAudioManager.isMusicActive()){
Log.d("TAG","Running");
}
else{
Log.d("TAG","Not running");
}
However, it cannot know if the media player is in background but it is in stop/pause mode (looks like when you scroll down the notification bar and click the pause button in the media player). Do we have any function which can determine the media player is opened in background, but it is in stop/pause mode?

Stopping beep sound of google speech recognizer

I am using the default speech recognizer of Android. But you may know that it plays a beep sound when starting the recognizer and when the onError() event is fired. Beep sound is played from Android version 5.x.
My requirement is to implement continuous recognizer. So I have to start this recognizer again and again. In this situation beep sound is being played again and again. I have tried to have some solution like below:
Mute the media sound before starting recognizer and unmute again onSpeechReady() event. On the other hand, if recognizer do not detect any speech for 4/5 sec then it automatically calls onError() event and this onError() event plays the beep again. To resolve this, I have stopped the recognizer forcefully after 3 sec and called onError() by a timer before system calls this onError() event.
But as I closed the recognizer forcefully, system is getting an exception here and playing a buzz.
Anybody can give any solution on how I can stop this beep sound as well as the buzz.
Thanks in advance.

Use the following code before starting your speech
AudioManager amanager=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
amanager.setStreamMute(AudioManager.STREAM_NOTIFICATION, true);
amanager.setStreamMute(AudioManager.STREAM_ALARM, true);
amanager.setStreamMute(AudioManager.STREAM_MUSIC, true);
amanager.setStreamMute(AudioManager.STREAM_RING, true);
amanager.setStreamMute(AudioManager.STREAM_SYSTEM, true);
Use the following code after getting result
AudioManager amanager=(AudioManager)getSystemService(Context.AUDIO_SERVICE);
amanager.setStreamMute(AudioManager.STREAM_NOTIFICATION, false);
amanager.setStreamMute(AudioManager.STREAM_ALARM, false);
amanager.setStreamMute(AudioManager.STREAM_MUSIC, false);
amanager.setStreamMute(AudioManager.STREAM_RING, false);
amanager.setStreamMute(AudioManager.STREAM_SYSTEM, false);

Turn off ring tone temporarily

When someone calls, my app will turn off the ringing tone in order not to distract the user. So could you please tell me how to turn off the ringing sound in Android?
EDIT:
It seems I will need to use this one :http://developer.android.com/reference/android/media/Ringtone.html

I think I've found the solution. In case someone else needs it, I copy my solution here:
AudioManager manager = (AudioManager) getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
manager.setRingerMode(AudioManager.RINGER_MODE_SILENT);
There is a manager class called AudioManager which controls the audios and such. And it has a instance method setRingerMode(int mode) which accepts a integer flag.
Once you're done with the silence, you can change the status of the ring tone by passing in this flag RINGER_MODE_NORMAL

Adding mute button to application in android?

I my game application am using musics. I need mute and unmute button to put mob i silent mode.
Music runs in every activity like playing game and checking score.But mute button is added in menu activity.
I googled didn't get any exact result.

Use audio manager and set volume
AudioManager audioManager = (AudioManager) getSystemService(ctx.AUDIO_SERVICE);
audioManager.setStreamVolume(AudioManager.STREAM_MUSIC, 0, 0);

I'd choose to set the volume to 0 (mute) or 1 (unmute) with MediaPlayer.setVolume(float volumeLeft, float volumeRight). Also preserves the users volume settings. Trigger by Button is easily achieved with onClickListener().

How to check something at regular intervals?

Beginner here, I have a simple question.
In Android what would be the best what to check for something at regular intervals?
Please bear with me, I'll try to explain the best I can --
For example my audio app is very simple, a main activity and a service. The main activity has a UI with two buttons, start and stop audio. I press start and the audio service starts. Likewise when I click Stop the service stops and the audio ends. If isLooping() is hard-coded to true there is no issue because the audio never ends unless I hit stop button, which stops the audio service and also resets the button states.
This is an issue now because I set isLooping() to false so the audio doesn't loop. So the audio will stop playing but the service is still running.
I want to be able to detect when the audio stops so I can set the states of the UI buttons. So I need something that is always checking whether audio is playing (i.e. check player.isPlaying() so I can end the service and set the enable/disable state of the buttons.
I figured out binding to the service so I can access the MediaPlayer controls via my main activity so I know the code to check if it's playing, but WHERE do I put this code so it's checked all the time?
Am I making sense? I know this is probably very simple. Thanks for any help.

You can repeat it with the TimerTask and Timer. Code below:
public final void RepeatSoundFunction(){
t = new Timer();
tt = new TimerTask() {
#Override
public void run() {
mp.seekTo(0); //Reset sound to beginning position
mp.start(); //Start the sound
t.purge(); //Purge the sound
}
};
t.schedule(tt, 10*1000); //Schedule to run tt (TimerTask) again after 10 seconds
}
then you set a MediaPlayer onCompletionListener and in there you put this.
Inside the run-code you can check for other things than
music, I just show an example with the audio.