Miwok app: OnAudioFocusChangeListener declaration from NumberActivity

NumbersActivity.java

/**
 * This listener gets triggered whenever the audio focus changes
 * (i.e., we gain or lose audio focus because of another app or device).
 */
private AudioManager.OnAudioFocusChangeListener mOnAudioFocusChangeListener = new AudioManager.OnAudioFocusChangeListener() {
    @Override
    public void onAudioFocusChange(int focusChange) {
        if (focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT ||
                focusChange == AudioManager.AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK) {
            // The AUDIOFOCUS_LOSS_TRANSIENT case means that we've lost audio focus for a
            // short amount of time. The AUDIOFOCUS_LOSS_TRANSIENT_CAN_DUCK case means that
            // our app is allowed to continue playing sound but at a lower volume. We'll treat
            // both cases the same way because our app is playing short sound files.

            // Pause playback and reset player to the start of the file. That way, we can
            // play the word from the beginning when we resume playback.
            mMediaPlayer.pause();
            mMediaPlayer.seekTo(0);
        } else if (focusChange == AudioManager.AUDIOFOCUS_GAIN) {
            // The AUDIOFOCUS_GAIN case means we have regained focus and can resume playback.
            mMediaPlayer.start();
        } else if (focusChange == AudioManager.AUDIOFOCUS_LOSS) {
            // The AUDIOFOCUS_LOSS case means we've lost audio focus and
            // Stop playback and clean up resources
            releaseMediaPlayer();
        }
    }
};

I don't understand. I had the same code however, I simply made AudioManager and AudioManager.OnAudioFocusChangeListener class variables and whenever I am trying to access them inside the onCreate() method, I am getting this message on Debugger 'No instance found:'audioManager'" Do I need to initialize them as you did?

@cabudies Since AudioManager.OnAudioFocusChangeListener it has no implementation so you have to implement it yourself or it won't work

Hi All,

After initializing the AudioManager reference variable , to get the AUDIO_SERVICE S i am using below code. i am getting the Context unable to recognize.
mAudioManager is private global variable.
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); could you please help me.

Thanks & Regards,
Yeswanth.

This task was kind of hard, but at the end somehow I nailed it.

The screenshot in the video was not showing @OverRide and was not showing 'Private' before the line ...

AudioManager.OnAudioFocusChangeListener mOnAudioFocusChangeListener =
new AudioManager.OnAudioFocusChangeListener() {...

EDIT:.... however, even though this is in the final code sample, it doesn't seem to have brought up any errors by leaving it out

NB: In the video from 07:23 to 07:33 there is a quick deletion of a couple of lines of code from the sample. Personally I missed this and only deleted it from the final code given in the link. This gets rid of the 2nd error. Maybe just me but if anyone else missed it, thought I'd share, it was very quick.

@yeswanth599 try adding a context
mAudioManager = (AudioManager) getApplicationContext().getSystemService(Context.AUDIO_SERVICE);

Done it

I was a little bit hard for me to understand the way how it works, but at the end, everything is clear now. Thank you so much

good

good

It was challenging. This solution is very simple compared to mine. I created a new class put all my code for audiofocus in there. Then I created an instance of this new class to handle audio events. This way there is very little changes made to my existing code and no unnecessary code duplication.

I don't understand. I had the same code however, I simply made AudioManager and AudioManager.OnAudioFocusChangeListener class variables and whenever I am trying to access them inside the onCreate() method, I am getting this message on Debugger 'No instance found:'audioManager'" Do I need to initialize them as you did?

Define it globally. It worked for me.

I did use a switch statement for different audio focus states

Hi All,

After initializing the AudioManager reference variable , to get the AUDIO_SERVICE S i am using below code. i am getting the Context unable to recognize.
mAudioManager is private global variable.
mAudioManager = (AudioManager) getSystemService(Context.AUDIO_SERVICE); could you please help me.

Thanks & Regards,
Yeswanth.

try using mAudioManager=(AudioManager) contextActivity.getSystemService(Context.AUDIO_SERVICE);

Does someone have a problem with deprecations, how did you solve it?

mAudioManager.registerMediaButtonEventReciever(); ????

Nice code up there!!!