在片段中播放歌曲

Question

你好我的项目当我点击一个按钮时我会播放一首歌这个按钮是一个片段布局，但是如果我需要将代码放在片段或MainActivity中，我现在不会。所以在这里我把它放在片段中，protected void的＆＃34; protected＆＃34; 在红色下划线为＃34;（this，resId）＆＃ 34 ;.有人可以帮助感谢很多。

这是我的 fragment.java

public class thekairi78 extends Fragment {

private AdView adView;
private MediaPlayer mPlayer = null;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {


    View rootView = inflater.inflate(R.layout.thekairi78, container,
            false);



    Button regarde = (Button) getView().findViewById(R.id.regarde);
    regarde.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {
            playSound(R.raw.regarde);
        }
    });


    adView = new AdView(getActivity());
    adView.setAdUnitId("ca-app-pub-3940256099942544/6300978111");
    adView.setAdSize(AdSize.SMART_BANNER);
    LinearLayout layout = (LinearLayout) rootView.findViewById(R.id.layout_admob);
    layout.addView(adView);
    AdRequest adRequest = new AdRequest.Builder().build();
    adView.loadAd(adRequest);
    return rootView;





}

@Override
protected void onPause() {
    if(mPlayer != null && mPlayer.isPlaying()){
        mPlayer.pause();
    }
    super.onPause();

}

private void playSound(int resId){
    if (mPlayer != null) {
        mPlayer.stop();
        mPlayer.release();

    }
    mPlayer = MediaPlayer.create(this, resId);
    mPlayer.start();
}

}

这里是 MainActivity.java

public class MainActivity extends AppCompatActivity {

    private MediaPlayer mPlayer = null;



    private SectionsPagerAdapter mSectionsPagerAdapter;


    private ViewPager mViewPager;

    InterstitialAd mInterstitialAd;
    private InterstitialAd interstitial;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        AdRequest adRequest = new AdRequest.Builder().build();


        interstitial = new InterstitialAd(MainActivity.this);

        interstitial.setAdUnitId(getString(R.string.admob_interstitial_id));

        interstitial.loadAd(adRequest);

        interstitial.setAdListener(new AdListener() {
            public void onAdLoaded() {

                displayInterstitial();
            }
        });



        Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
        setSupportActionBar(toolbar);
        mSectionsPagerAdapter = new SectionsPagerAdapter(getSupportFragmentManager());


        mViewPager = (ViewPager) findViewById(R.id.container);
        mViewPager.setAdapter(mSectionsPagerAdapter);

        TabLayout tabLayout = (TabLayout) findViewById(R.id.tabs);
        tabLayout.setupWithViewPager(mViewPager);


    }




    @Override
    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }


 public class SectionsPagerAdapter extends FragmentPagerAdapter {

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
        }

        @Override
        public Fragment getItem(int position) {

            switch (position)  {
                case 0:
                  thekairi78 tab1 = new thekairi78();

                    return tab1;
                case 1:
                  kenny tab2 = new kenny();
                    return tab2;
                case 2:
                    autres tab3 = new autres();
                    return tab3;
                default:
                    return null;
            }


        }



        @Override
        public int getCount() {

            return 3;
        }

        @Override
        public CharSequence getPageTitle(int position) {
            switch (position) {
                case 0:
                    return "TheKairi78";
                case 1:
                    return "Kenny";
                case 2:
                    return "Autres SoundBox";
            }
            return null;
        }
    }

    public void displayInterstitial() {

        if (interstitial.isLoaded()) {
            interstitial.show();
        }
    }

    @Override
    protected void onPause() {
        if(mPlayer != null && mPlayer.isPlaying()){
            mPlayer.pause();
        }
        super.onPause();

    }


    private void playSound(int resId){
        if (mPlayer != null) {
            mPlayer.stop();
            mPlayer.release();

        }
        mPlayer = MediaPlayer.create(this, resId);
        mPlayer.start();
    }
}