Question

我正在尝试在我的android项目的几个类中播放我的soundpool方法，但是它们不是活动类，所以我需要使用上下文。每当我编写代码并启动应用程序时，它每次都会崩溃。我很好地正确使用上下文。任何帮助将不胜感激。我会在这里发布代码。

public class Sound1{

    static SoundPool soundPool;
    static int soundId;
    static AudioManager audioManager;
    static int[] sm;

    // private final Context mContext;
    Context context;


    public Sound1(Context context){
        this.context = context;
       // mContext = context.getApplicationContext();
    int maxStreams = 4;
        if (VERSION.SDK_INT >= VERSION_CODES.LOLLIPOP) {
            soundPool = new SoundPool.Builder()
                    .setMaxStreams(maxStreams)
                    .build();
        } else {
            soundPool = new SoundPool(maxStreams, AudioManager.STREAM_MUSIC, 0);
        }

        sm = new int[3];
        // fill your sounds
        sm[0] = soundPool.load(context, R.raw.sound1, 1);
        sm[1] = soundPool.load(context, R.raw.sound1, 1);
        sm[2] = soundPool.load(context, R.raw.sound1, 1);

        audioManager = (AudioManager)context.getSystemService(Context.AUDIO_SERVICE);
    }

    public void playSound(int sound) {

        soundPool.play(sm[sound], 1, 1, 1, 0, 1f);
    }
}



Sound1 sound1 = new Sound1(this);


    public Player(GameScreen gameScreen, GameEventHandler mGameEventHandler) {
        // Store the centre of the screen
        //screenCentre.x = gameScreen.getGame().getScreenWidth() / 2;
        //screenCentre.y = gameScreen.getGame().getScreenHeight() / 2;
        this.mGameEventHandler = mGameEventHandler;
        //mDeck = new Deck(mGameScreen);
        Move1BoundingBox = new BoundingBox(
                mGameScreen.getGame().getScreenWidth()/2, mGameScreen.getGame().getScreenHeight()/2 + 20,
                210, 90);
        Move2BoundingBox = new BoundingBox(
                mGameScreen.getGame().getScreenWidth()/2, mGameScreen.getGame().getScreenHeight()/2 + 110,
                210, 90);
        ExpandedBoundingBox = new BoundingBox(mGameScreen.getGame().getScreenWidth()/2,
                mGameScreen.getGame().getScreenHeight()/2, 210, 150);
    }

    public void update(ElapsedTime elapsedTime) {
        // Consider any touch events occurring since the update;
        Input input = mGameScreen.getGame().getInput();
        sound1.playSound(1);
        if (input.getTouchEvents().size() != 0) {
            if (input.existsTouch(0)) {
                // Get the primary touch event
                isPlayerTouch = true;

STACK TRACE

04-21 14：08：08.609 18358-18358 / uk.ac.qub.eeecs.gage D / ViewRootImpl： ViewPostImeInputStage ACTION_DOWN 04-21 14：08：08.649 18358-18398 / uk.ac.qub.eeecs.gage V / MediaPlayer-JNI：isPlaying：0 04-21 14：08：08.699 18358-18398 / uk.ac.qub.eeecs.gage V / MediaPlayer-JNI： isPlaying：0 04-21 14：08：08.749 18358-18398 / uk.ac.qub.eeecs.gage V / MediaPlayer-JNI：isPlaying：0 04-21 14：08：08.969 18358-18398 / uk.ac.qub.eeecs.gage E / AndroidRuntime：FATAL EXCEPTION：螺纹2376 过程：uk.ac.qub.eeecs.gage，PID：18358 java.lang.RuntimeException：无法在线程内创建处理程序没有调用Looper.prepare（）在android.os.Handler。（Handler.java:200）在android.os.Handler。（Handler.java:114）在android.app.Activity。（Activity.java:889）在uk.ac.qub.eeecs.game.cardDemo.Player。（Player.java:0）在 uk.ac.qub.eeecs.game.cardDemo.CardDemoGameScreen。（CardDemoGameScreen.java:127）在uk.ac.qub.eeecs.game.MenuScreen.update（MenuScreen.java:103） at uk.ac.qub.eeecs.gage.Game.doUpdate（Game.java:330） at uk.ac.qub.eeecs.gage.Game.access $ 200（Game.java:26） at uk.ac.qub.eeecs.gage.Game $ GameLoop.run（Game.java:527）在java.lang.Thread.run（Thread.java:818）

在非活动类中播放声音类方法（上下文不起作用）Android

0 个答案: