Java 在非活动类(上下文不工作)Android中播放声音类方法
我试图在我的android项目的几个类中播放我的声音池方法,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,每次都会崩溃。我不能正确地使用上下文。任何帮助都将不胜感激。我会在这里发布代码Java 在非活动类(上下文不工作)Android中播放声音类方法,java,android,audio,methods,soundpool,Java,Android,Audio,Methods,Soundpool,我试图在我的android项目的几个类中播放我的声音池方法,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,每次都会崩溃。我不能正确地使用上下文。任何帮助都将不胜感激。我会在这里发布代码 public class Sound1{ static SoundPool soundPool; static int soundId; static AudioManager audioManager; static int[] sm; /
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;
堆栈跟踪
04-21 14:08:08.609 18358-18358/uk.ac.qub.eeecs.gage D/ViewRootImpl:
VIEWPOSTMEINPUTSTAGE操作向下04-21 14:08:08.649
18358-18398/uk.ac.qub.eeecs.gage V/MediaPlayer JNI:isplay:0 04-21
14:08:08.699 18358-18398/uk.ac.qub.eeecs.gage V/MediaPlayer JNI:
显示: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:致命异常:
螺纹-2376
流程:uk.ac.qub.eeecs.gage,PID:18358
java.lang.RuntimeException:无法在该线程内创建处理程序 尚未调用Looper.prepare() android.os.Handler.(Handler.java:200) 位于android.os.Handler.(Handler.java:114) 在android.app.Activity。(Activity.java:889) 在uk.ac.qub.eeecs.game.cardemo.Player.(Player.java:0) 在 uk.ac.qub.eeecs.game.cardDemo.CardDemoGameScreen.(CardDemoGameScreen.java:127) 位于uk.ac.qub.eeecs.game.MenuScreen.update(MenuScreen.java:103) 在uk.ac.qub.eeecs.gage.Game.doUpdate上(Game.java:330) 在uk.ac.qub.eeecs.gage.Game.access$200(Game.java:26) 位于uk.ac.qub.eeecs.gage.Game$GameLoop.run(Game.java:527) 运行(Thread.java:818)
“每当我编写代码并启动应用程序时,每次都会崩溃”--使用LogCat检查与崩溃相关的Java堆栈跟踪:“Java.lang.RuntimeException:无法在未调用Looper.prepare()的线程内创建处理程序”这是我收到的消息,但是每当我使用Sound1 Sound1=new Sound1(此);和声音1.播放声音(1);我认为问题在于这两行代码。请编辑您的问题并发布整个Java堆栈跟踪。还请确保堆栈跟踪中引用的代码在您的问题中。