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libgdx中的音乐流不';t工作(JAVA)_Java_Libgdx_Audio Streaming_Background Music - Fatal编程技术网

libgdx中的音乐流不';t工作(JAVA)

libgdx中的音乐流不';t工作(JAVA),java,libgdx,audio-streaming,background-music,Java,Libgdx,Audio Streaming,Background Music,所以我一直在做一个libGDX项目,我在这里遇到了一个问题: public class Main extends ApplicationAdapter implements Screen { (...) @Override public void create() { (...) //Starts playing Main theme Music MusicPlayer.determineMusic(mainTheme, splash); } public voi

所以我一直在做一个libGDX项目,我在这里遇到了一个问题:

 public class Main extends ApplicationAdapter implements Screen {
      (...)
 @Override
 public void create() {
 (...)
 //Starts playing Main theme Music
 MusicPlayer.determineMusic(mainTheme, splash);

 }

 public void render() {

    Gdx.gl.glClearColor(1, 1, 1, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);

    batch.begin();

        //was:
        //splash.splashRenderer(mainTheme, batch, splashSprite);

        //changed to:
        splash.splashRenderer(batch, splashSprite);

    batch.end();

    System.out.println("******************End of Render******************");
}


public class SplashScreen {


 Music gameTheme ;

    public SplashScreen(){
    }

    public void splashRenderer(SpriteBatch batch, Sprite splashSprite) {
    batch.draw(splashSprite, 0, 0, MyConstants.WINDOW_WIDTH,                    MyConstants.WINDOW_HEIGHT);
    }

   @Override
   public void show() {
       //gameTheme = Gdx.audio.newMusic(Gdx.files.internal("blah.mp3"));
       //gameTheme.play();
   }

   @Override
   public void hide() {
       //gameTheme.dispose();
   }

   @Override
   public void dispose() {
      //gameTheme.dispose();

   }

}

public class MusicPlayer {

   protected MusicPlayer(){
   }

   public static void determineMusic(Music Theme, AbstractScreen screen){

       if ((screen instanceof GameScreen) == false){
           Theme.play();
       }
   }

}
到目前为止,代码基本上只是加载一个音乐文件和一个精灵,并通过splashRenderer方法将其绘制到屏幕上,但我的问题是音乐没有启动。 任何帮助都将不胜感激。提前谢谢

EDIT1~我实现了Screen,将方法更改为splashRenderer(SpriteBatch,Sprite)&在show方法中加载并播放音乐文件,并在hide和dispose方法中对其进行处理()。我没有向pause()方法添加任何内容,因为我认为它是自动完成的

EDIT2~我注意到这次音乐也没有开始。我提出的解决方案是创建一个新类MusicPlayer(),它将决定是否播放以及播放哪个曲目。MusicLayer首先在create()中显式调用,并在需要时(可能是在处理MouseeEvents时)调用

请提供关于这些变更的反馈(好/坏/由于这个和那个原因需要避免)。谢谢

我做了以下工作:

public abstract class BaseScreen implements Screen, InputProcessor
{
     public BaseScreen() 
     {
         windowWidth = Gdx.graphics.getWidth();
         windowHeight = Gdx.graphics.getHeight();
         AudioManager.getScreenThemes().put(this, getScreenMusic());
     }

     public void pause()
     {
         AudioManager.pause();
     }

     public void resume()
     {
         AudioManager.play();
     }

     public void show()
     {
         Gdx.input.setInputProcessor(this);
         AudioManager.switchMusic(this);
     }


     public abstract Music getScreenMusic();
     ...
}
另一屏幕:

@Override
public Music getScreenMusic()
{
    return Resources.soundGameTheme;
}
音频经理:

static
{
    screenThemes = new HashMap<Screen, Music>();
    currentlyPlayed = null;
}

public static boolean getSoundEnabled()
{
    return MyGame.getPreferences().getBoolean(Resources.soundEnabledKey);
}

private static Map<Screen, Music> screenThemes;

public static Music currentlyPlayed;

public static void play()
{
    if(getSoundEnabled() != false)
    {
        if(currentlyPlayed != null)
        {
            if(currentlyPlayed.isPlaying() == false)
            {
                currentlyPlayed.play();
            }
        }
    }
}

public static void initialize()
{
    Resources.soundMainMenuTheme = Gdx.audio.newMusic(Gdx.files.internal("data/main_menu.mp3"));
    Resources.soundGameTheme = Gdx.audio.newMusic(Gdx.files.internal("data/game.mp3")); 
    Resources.soundMainMenuTheme.setLooping(true);
    Resources.soundGameTheme.setLooping(true);
}

public static void stop()
{
    if(currentlyPlayed != null)
    {
        if(currentlyPlayed.isPlaying() == true)
        {
            currentlyPlayed.stop();
        }
    }
}

public static void pause()
{
    if(getSoundEnabled() != false)
    {
        if(currentlyPlayed != null)
        {
            if(currentlyPlayed.isPlaying() == true)
            {
                currentlyPlayed.pause();
            }
        }
    }
}

public static void switchMusic(Screen screen)
{
    if(screenThemes.get(screen) != currentlyPlayed)
    {
        if(screenThemes.get(screen) != null)
        {
            stop();
            currentlyPlayed = screenThemes.get(screen);
            play();
        }
    }
}

public static void dispose()
{
    Resources.soundMainMenuTheme.dispose();
    Resources.soundGameTheme.dispose();
    screenThemes = null;
}

public static Map<Screen, Music> getScreenThemes()
{
    return screenThemes;
}

SplashScreen
似乎没有实现
Screen
,这很奇怪。另外,当您在
render()
函数中调用
play()
时,您每秒调用
play()
大约60次,而不是在
屏幕中调用
show()
,这将解释为什么它不会“启动”.请参见EDIT1和2嗯,是的,我真的不需要这么复杂的应用程序,因为它只会在从主菜单转到游戏屏幕时改变轨迹,反之亦然,相反,我认为我已经制作了一个简化版本。你认为呢?听起来很合理,我还注意到我忘记了复制粘贴中最重要的方法调用,那就是
BaseScreen
中的
show()
函数,所以我需要让我的整个手机静音,以确保它不会播放愚蠢的音乐。我甚至在手机上玩过一个游戏,在手机静音的情况下播放音乐,这让我很生气。这应该成为每一场比赛的一部分P
public class MyGame extends Game
{
    private static Preferences preferences;

    @Override
    public void create()
    {
        ... 
        preferences = Gdx.app.getPreferences(Resources.preferencesName);
        ...
    }

    public static Preferences getPreferences()
    {
        return preferences;
    }
}