[TIMOB-23258] Android: Support audioSessionId getters

[AngelkPetkov]

JIRA

Community PR , FT please.

[ashcoding]

Test Code:

var win = Titanium.UI.createWindow({  
    title:'Audio Test',
    backgroundColor:'#fff',
    layout: 'vertical'
});

var startStopButton = Titanium.UI.createButton({
    title:'Start/Stop Streaming',
    top:10,
    width:200,
    height:40
});

var pauseResumeButton = Titanium.UI.createButton({
    title:'Pause/Resume Streaming',
    top:10,
    width:200,
    height:40,
    enabled:false
});

var getID = Titanium.UI.createButton({
    title:'getId',
    top:10,
    width:200,
    height:40
});

win.add(startStopButton);
win.add(pauseResumeButton);
win.add(getID);

// allowBackground: true on Android allows the 
// player to keep playing when the app is in the 
// background.
var audioPlayer = Ti.Media.createAudioPlayer({ 
    url: 'http://www.noiseaddicts.com/samples_1w72b820/17.mp3',
    allowBackground: true
});           

startStopButton.addEventListener('click',function() {
    // When paused, playing returns false.
    // If both are false, playback is stopped.
    if (audioPlayer.playing || audioPlayer.paused)
    {
        audioPlayer.stop();
        pauseResumeButton.enabled = false;
        if (Ti.Platform.name === 'android')
        { 
            audioPlayer.release();
        }   
    }
    else
    {
        audioPlayer.start();
        pauseResumeButton.enabled = true;
    }
});

pauseResumeButton.addEventListener('click', function() {
    if (audioPlayer.paused) {
        audioPlayer.start();
    }
    else {
        audioPlayer.pause();
    }
});

audioPlayer.addEventListener('progress',function(e) {
    Ti.API.info('Time Played: ' + Math.round(e.progress) + ' milliseconds');
});

audioPlayer.addEventListener('change',function(e)
{
    Ti.API.info('State: ' + e.description + ' (' + e.state + ')');
});

win.addEventListener('close',function() {
    audioPlayer.stop();
    if (Ti.Platform.osname === 'android')
    { 
        audioPlayer.release();
    }
});

getID.addEventListener('click', function() {
    alert("Audio Player Id:"+ audioPlayer.getAudioSessionId());
});


win.open();

Test steps:-

1. Press GetID. You will get 0.
2. Press Start streaming.
3. Press GetID. You will get an ID.
4. While still streaming, press stop.
5. Press GetID. You will get 0.

[ashcoding]

@AngelkPetkov we are feature freezing for 5.4.0. This should be fine to be added for 5.4.0. Before that, could you do a few things?

1. Your PR code alignment is off. Please format the code correctly.
2. Add documentation.

After that's done, could you get someone to review the documentation and code alignment? I think Hans should be fine with checking it. Once that's done, please merge this.

[ashcoding]

Code functionally tested with the test case above and reviewed as mentioned above. This can be merged (by Hans, Hieu or Angel) once the above comments have been addressed.
@AngelkPetkov please get it in before Friday ends.

[sgtcoolguy]

indentation is off

[AngelkPetkov]

Made indentation same as the rest of the class and added docs. Thanks Ash!