Question

我有这个活动，只要我在播放声音时按下主页按钮声音一直在播放，当声音结束时它会带回应用程序。

public class View5 extends MasterView implements OnCompletionListener {

    int[] tracks = new int[4];
    int[] times = new int[4];
    int currentTrack = 0;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        InputStream stream = null;
        try {
            stream = getAssets().open("herzdruck_animiert2.gif");
        } catch (IOException e) {
            e.printStackTrace();
        }

        SharedPreferences settings = getSharedPreferences("settings", 0);
        String lang = settings.getString("lang", "");


        if (lang.equals("de")) {
            tracks[0] = getResources().getIdentifier("raw/view5_1_de",
                    null, this.getPackageName());

            tracks[1] = getResources().getIdentifier("raw/view5_2_de", null,
                    this.getPackageName());

            tracks[2] = getResources().getIdentifier("raw/view5_3_de", null,
                    this.getPackageName());

            tracks[3] = getResources().getIdentifier("raw/view5_4_de", null,
                    this.getPackageName());

        } else if (lang.equals("tr")) {
            tracks[0] = getResources().getIdentifier("raw/view5_1_tr",
                    null, this.getPackageName());

            tracks[1] = getResources().getIdentifier("raw/view5_2_tr", null,
                    this.getPackageName());

            tracks[2] = getResources().getIdentifier("raw/view5_3_tr", null,
                    this.getPackageName());

            tracks[3] = getResources().getIdentifier("raw/view5_4_tr", null,
                    this.getPackageName());

        } else if (lang.equals("en")) {
            tracks[0] = getResources().getIdentifier("raw/view5_1_en",
                    null, this.getPackageName());

            tracks[1] = getResources().getIdentifier("raw/view5_2_en", null,
                    this.getPackageName());

            tracks[2] = getResources().getIdentifier("raw/view5_3_en", null,
                    this.getPackageName());

            tracks[3] = getResources().getIdentifier("raw/view5_4_en", null,
                    this.getPackageName());

        }

        times[0] = 5000;
        times[1] = 2000;
        times[2] = 2000;
        times[3] = 1000;

        GifMovieView view = new GifMovieView(this, stream);

         mPlayer = MediaPlayer.create(getApplicationContext(), tracks[currentTrack]);
         mPlayer.setOnCompletionListener(this);
         mPlayer.start();



        setContentView(view);
    }

    @Override
    public void onCompletion(MediaPlayer arg0) {
        arg0.release();
        arg0 = MediaPlayer.create(getApplicationContext(),
                tracks[currentTrack]);

        if (currentTrack < tracks.length-1) {
            currentTrack++;
            arg0 = MediaPlayer.create(getApplicationContext(),
                    tracks[currentTrack]);
            arg0.setOnCompletionListener(this);
            try {
                Thread.sleep(times[currentTrack]);
            } catch (InterruptedException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
            arg0.start();
        }else if(currentTrack==tracks.length-1) {
            Intent i = new Intent(getApplicationContext(), ViewBeat1.class);
            startActivity(i);
        }
    }

}

我怎样摆脱这种行为？

MasterView拥有mPlayer，并在onRestart，onDestroy和onPause上关闭它。

Answer 1

enter image description here
以下是MediaPlayer的状态图，它可以帮助您了解Activity生命周期中的哪一点，您应该调用MediaPlayer对象上的各种方法。

就像Jesse J所说的那样，尝试在stop()

中调用onPause()

尽管我关闭了应用程序，MediaPlayer仍在继续播放

1 个答案: