miwok:PhrasesFragment

.java

package com.example.android.miwok;


import android.content.Context;
import android.media.AudioManager;
import android.media.MediaPlayer;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.ListView;

import java.util.ArrayList;

/**
 * A simple {@link Fragment} subclass.
 */
public class PhrasesFragment extends android.support.v4.app.Fragment {


    public PhrasesFragment() {
        // Required empty public constructor
    }

    MediaPlayer mMediaPlayer;
    private AudioManager audioManager;
    private AudioManager.OnAudioFocusChangeListener mOnAudioFocusChangeListener ;


    //release Mediaplayer resources
    private void releaseMediaPlayerResource() {
        if (mMediaPlayer != null) {
            mMediaPlayer.release();
            mMediaPlayer = null;
        }
    }

    @Override
    public void onStop() {
        super.onStop();
        releaseMediaPlayerResource();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.word_list, container, false);
        // Create a list of words
        final ArrayList<Word> words = new ArrayList<Word>();
        words.add(new Word("Where are you going?", "minto wuksus", R.raw.phrase_where_are_you_going));
        words.add(new Word("What is your name?", "tinnә oyaase'nә", R.raw.phrase_what_is_your_name));
        words.add(new Word("My name is...", "oyaaset...", R.raw.phrase_my_name_is));
        words.add(new Word("How are you feeling?", "michәksәs?", R.raw.phrase_how_are_you_feeling));
        words.add(new Word("I’m feeling good.", "kuchi achit", R.raw.phrase_im_feeling_good));
        words.add(new Word("Are you coming?", "әәnәs'aa?", R.raw.phrase_are_you_coming));
        words.add(new Word("Yes, I’m coming.", "hәә’ әәnәm", R.raw.phrase_yes_im_coming));
        words.add(new Word("I’m coming.", "әәnәm", R.raw.phrase_im_coming));
        words.add(new Word("Let’s go.", "yoowutis", R.raw.phrase_lets_go));
        words.add(new Word("Come here.", "әnni'nem", R.raw.phrase_come_here));

        // Create an {@link WordAdapter}, whose data source is a list of {@link Word}s. The
        // adapter knows how to create list items for each item in the list.
        WordAdapter adapter = new WordAdapter(getActivity(), words, R.color.category_phrases);

        // Find the {@link ListView} object in the view hierarchy of the {@link Activity}.
        // There should be a {@link ListView} with the view ID called list, which is declared in the
        // word_list.xml layout file.
        ListView listView = (ListView) rootView.findViewById(R.id.list);

        // Make the {@link ListView} use the {@link WordAdapter} we created above, so that the
        // {@link ListView} will display list items for each {@link Word} in the list.
        listView.setAdapter(adapter);

        listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                releaseMediaPlayerResource();
                mMediaPlayer = MediaPlayer.create(getActivity(), words.get(position).getMediaplayerId());
                //request audiofocus
                audioManager = (AudioManager) getActivity().getSystemService(Context.AUDIO_SERVICE);
                int requestResult = audioManager.requestAudioFocus(mOnAudioFocusChangeListener, AudioManager.STREAM_MUSIC, AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
                if (requestResult == AudioManager.AUDIOFOCUS_REQUEST_GRANTED) {
                    mMediaPlayer.start();

                    mMediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
                        @Override
                        public void onCompletion(MediaPlayer mp) {
                            releaseMediaPlayerResource();
                        }
                    });
                }
            }
        });
        return rootView;
    }

}