public class AndroidBuildingMusicPlayerActivity extends Activity implements OnCompletionListener, SeekBar.OnSeekBarChangeListener {
	private ImageButton btnPlay;
	public ArrayList<Model> mSurrahList;
	public Context mContext;
	public ListView listView;
	public TextView tvomorTitle;
	private ImageButton btnForward;
	private ImageButton btnBackward;
	private ImageButton btnNext;
	private ImageButton btnPrevious;
	private SeekBar songProgressBar;
	private TextView songTitleLabel;
	private TextView songCurrentDurationLabel;
	private TextView songTotalDurationLabel;
	private FancyAdapter mFancyAdapter;
	// Media Player
	private  MediaPlayer mp;
	// Handler to update UI timer, progress bar etc,.
	private Handler mHandler = new Handler();
	private Utilities utils;
	private int seekForwardTime = 5000; // 5000 milliseconds
	private int seekBackwardTime = 5000; // 5000 milliseconds
	private long startTime = 0;
	private long finalTime = 0;
	private int currentSongIndex = 0;
	private boolean isShuffle = false;
	private boolean isRepeat = false;
	private Handler myHandler = new Handler();


	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.player);
		mContext=this;
		mSurrahList=new ArrayList<Model>();
		listRawMp3List();

		listView=(ListView)findViewById(R.id.listView);
		mFancyAdapter = new FancyAdapter(mSurrahList);
		listView.setAdapter(mFancyAdapter);
		listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
			@Override
			public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
			playSong(i);
			}
		});
		tvomorTitle=(TextView)findViewById(R.id.tvomorTitle);
		// All player buttons
		btnPlay = (ImageButton) findViewById(R.id.btnPlay);
		btnForward = (ImageButton) findViewById(R.id.btnForward);
		btnBackward = (ImageButton) findViewById(R.id.btnBackward);
		btnNext = (ImageButton) findViewById(R.id.btnNext);
		btnPrevious = (ImageButton) findViewById(R.id.btnPrevious);
		songProgressBar = (SeekBar) findViewById(R.id.songProgressBar);
		songTitleLabel = (TextView) findViewById(R.id.songTitle);
		songCurrentDurationLabel = (TextView) findViewById(R.id.songCurrentDurationLabel);
		songTotalDurationLabel = (TextView) findViewById(R.id.songTotalDurationLabel);

		// Mediaplayer
		mp = new MediaPlayer();

		utils = new Utilities();

		// Listeners
		songProgressBar.setOnSeekBarChangeListener(this); // Important
		mp.setOnCompletionListener(this); // Important

		// Getting all songs list


		// By default play first song


		playSong(0);

		/**
		 * Play button click event
		 * plays a song and changes button to pause image
		 * pauses a song and changes button to play image
		 * */
		btnPlay.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View arg0) {
				// check for already playing
				if(mp.isPlaying()){
					if(mp!=null){
						mp.pause();
						// Changing button image to play button
						btnPlay.setImageResource(R.drawable.btn_play);
					}
				}else{
					// Resume song
					if(mp!=null){
						mp.start();
						// Changing button image to pause button
						btnPlay.setImageResource(R.drawable.btn_pause);
					}
				}

			}
		});

		/**
		 * Forward button click event
		 * Forwards song specified seconds
		 * */
		btnForward.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View arg0) {
				// get current song position
				int currentPosition = mp.getCurrentPosition();
				// check if seekForward time is lesser than song duration
				if(currentPosition + seekForwardTime <= mp.getDuration()){
					// forward song
					mp.seekTo(currentPosition + seekForwardTime);
				}else{
					// forward to end position
					mp.seekTo(mp.getDuration());
				}
			}
		});

		/**
		 * Backward button click event
		 * Backward song to specified seconds
		 * */
		btnBackward.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View arg0) {
				// get current song position
				int currentPosition = mp.getCurrentPosition();
				// check if seekBackward time is greater than 0 sec
				if(currentPosition - seekBackwardTime >= 0){
					// forward song
					mp.seekTo(currentPosition - seekBackwardTime);
				}else{
					// backward to starting position
					mp.seekTo(0);
				}

			}
		});

		/**
		 * Next button click event
		 * Plays next song by taking currentSongIndex + 1
		 * */
		btnNext.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View arg0) {
				// check if next song is there or not
				if(currentSongIndex < (mSurrahList.size() - 1)){
					playSong(currentSongIndex + 1);
					currentSongIndex = currentSongIndex + 1;
				}else{
					// play first song
					playSong(0);
					currentSongIndex = 0;
				}

			}
		});

		/**
		 * Back button click event
		 * Plays previous song by currentSongIndex - 1
		 * */
		btnPrevious.setOnClickListener(new View.OnClickListener() {

			@Override
			public void onClick(View arg0) {
				if(currentSongIndex > 0){
					playSong(currentSongIndex - 1);
					currentSongIndex = currentSongIndex - 1;
				}else{
					// play last song
					playSong(mSurrahList.size() - 1);
					currentSongIndex = mSurrahList.size() - 1;
				}

			}
		});



	}

	public void listRawMp3List(){
		Field[] fields=R.raw.class.getFields();
		for(int count=0; count < fields.length; count++){

			try
			{
			    int id=count;
				String name=fields[count].getName();
			    String path="R.raw."+name;
			    long resourceID=fields[count].getInt(fields[count]);
				mSurrahList.add(new Model(id, name, path, resourceID));
				// Toast.makeText(mContext,"resourceID:"+resourceID,Toast.LENGTH_LONG).show();
			}
			catch (Exception e)
			{
				Toast.makeText(mContext,"Exception:"+e.toString(),Toast.LENGTH_LONG).show();
			}

		}
	}

	/**
	 * Function to play a song
	 * @param songIndex - index of song
	 * */
	public void  playSong(int songIndex){
		// Play song
		try {
        	mp.reset();
		//	mp.setDataSource(songsList.get(songIndex).get("songPath"));
			Log.e("logg",Uri.parse("android.resource://com.androidhive.musicplayer/" + R.raw.al_ahzab).toString());
			Log.e("loggf",Uri.parse("android.resource://com.androidhive.musicplayer/" + mSurrahList.get(songIndex).getResourceID()).toString());
			Log.e("logg1",Uri.parse("android.resource://com.androidhive.musicplayer/" + mSurrahList.get(songIndex).getPath()).toString());
//			mp.setDataSource(getApplicationContext(),
//					Uri.parse("android.resource://com.androidhive.musicplayer/" + "R.raw."+mSurrahList.get(songIndex).getName()));
			mp.setDataSource(getApplicationContext(),
					Uri.parse("android.resource://com.androidhive.musicplayer/" + mSurrahList.get(songIndex).getResourceID()));
			mp.prepare();
			mp.start();
			// Displaying Song title
			String songTitle = mSurrahList.get(songIndex).getName();
        	songTitleLabel.setText(songTitle);
        	tvomorTitle.setText("Now playing: "+songTitle);

        	// Changing Button Image to pause image
			btnPlay.setImageResource(R.drawable.btn_pause);

			// set Progress bar values
			songProgressBar.setProgress(0);
			songProgressBar.setMax(100);

			// Updating progress bar
			updateProgressBar();
		} catch (IllegalArgumentException e) {
			e.printStackTrace();
		} catch (IllegalStateException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	/**
	 * Update timer on seekbar
	 * */
	public void updateProgressBar() {
        mHandler.postDelayed(mUpdateTimeTask, 100);
    }

	/**
	 * Background Runnable thread
	 * */
	private Runnable mUpdateTimeTask = new Runnable() {
		   public void run() {
			   try
			   {
				   long totalDuration = mp.getDuration();
				   long currentDuration = mp.getCurrentPosition();

				   // Displaying Total Duration time
				   songTotalDurationLabel.setText(""+utils.milliSecondsToTimer(totalDuration));
				   // Displaying time completed playing
				   songCurrentDurationLabel.setText(""+utils.milliSecondsToTimer(currentDuration));

				   // Updating progress bar
				   int progress = utils.getProgressPercentage(currentDuration, totalDuration);
				   //Log.d("Progress", ""+progress);
				   songProgressBar.setProgress(progress);

				   // Running this thread after 100 milliseconds
				   mHandler.postDelayed(this, 100);
			   }
			   catch (Exception e)
			   {

			   }

		   }
		};

	/**
	 *
	 * */
	@Override
	public void onProgressChanged(SeekBar seekBar, int progress, boolean fromTouch) {

	}

	/**
	 * When user starts moving the progress handler
	 * */
	@Override
	public void onStartTrackingTouch(SeekBar seekBar) {
		// remove message Handler from updating progress bar
		mHandler.removeCallbacks(mUpdateTimeTask);
    }

	/**
	 * When user stops moving the progress hanlder
	 * */
	@Override
    public void onStopTrackingTouch(SeekBar seekBar) {
		mHandler.removeCallbacks(mUpdateTimeTask);
		int totalDuration = mp.getDuration();
		int currentPosition = utils.progressToTimer(seekBar.getProgress(), totalDuration);

		// forward or backward to certain seconds
		mp.seekTo(currentPosition);

		// update timer progress again
		updateProgressBar();
    }

	/**
	 * On Song Playing completed
	 * if repeat is ON play same song again
	 * if shuffle is ON play random song
	 * */
	@Override
	public void onCompletion(MediaPlayer arg0) {

		// check for repeat is ON or OFF
		if(isRepeat){
			// repeat is on play same song again
			playSong(currentSongIndex);
		} else if(isShuffle){
			// shuffle is on - play a random song
			Random rand = new Random();
			currentSongIndex = rand.nextInt((mSurrahList.size() - 1) - 0 + 1) + 0;
			playSong(currentSongIndex);
		} else{
			// no repeat or shuffle ON - play next song
			if(currentSongIndex < (mSurrahList.size() - 1)){
				playSong(currentSongIndex + 1);
				currentSongIndex = currentSongIndex + 1;
			}else{
				// play first song
				playSong(0);
				currentSongIndex = 0;
			}
		}
	}


	@Override
	 public void onDestroy(){
	 super.onDestroy();
	    mp.release();
	 }
	private class FancyAdapter extends BaseAdapter {

		private ArrayList<Model> mData;

		public FancyAdapter(ArrayList<Model> data) {
			mData = data;
		}

		@Override
		public int getCount() {
			return mData.size();
		}

		@Override
		public Model getItem(int position) {
			return mData.get(position);
		}

		@Override
		public long getItemId(int position) {
			return position;
		}

		@Override
		public View getView(int position, View convertView, ViewGroup parent) {

			TextView result;

			if (convertView == null) {
				result = (TextView) getLayoutInflater().inflate(R.layout.text_item, parent, false);
			} else {
				result = (TextView) convertView;
			}

			final String cheese = getItem(position).name;
			result.setText(cheese);

			return result;
		}

	}
}