android 的 libGDX 动画

问题描述

如果我为桌面启动它，它运行得非常好，但在我的 Android 导出后它在我启动应用程序后立即崩溃.

If I start it for Desktop it runs pretty nice, but after the export for my Android it crashes right after I start the application.

所以我的问题...:

它适用于桌面但不适用于我的 Android 有什么问题?

What's wrong that it works for the Desktop but not for my Android?

public class Player implements Serializable{

/**
 * 
 */
private static final long serialVersionUID = -7913517465400462738L;

Vector2 position;
private static final int col = 4;
private static final int row = 4;
private Animation animation;
private Texture playerTexture;
private TextureRegion[] frames;
private TextureRegion currentFrame;
private float stateTime;
private int x,y, deltaX, deltaY;



public Player(Vector2 position){
    this.position = position;
    playerTexture = new Texture(Gdx.files.internal("Charackter/charackter_sprite.png"));
    TextureRegion[][] temp = TextureRegion.split(playerTexture, playerTexture.getWidth() / col, playerTexture.getHeight() / row);
    frames = new TextureRegion[col* row];

    int index = 0;
    for(int i = 0; i < row; i++){
        for(int j = 0; j < col; j++){
            frames[index++] = temp[i][j];
        }
    }
    animation = new Animation(1, frames);
    stateTime = 0;
    currentFrame = animation.getKeyFrame(0);
    deltaX = Gdx.graphics.getWidth();
    deltaY = Gdx.graphics.getHeight();
}

public void update(){

    if(stateTime < 4){
    stateTime += Gdx.graphics.getDeltaTime();
    }
    else{
        stateTime = 0;
    }       

    if (Gdx.input.isTouched())
    {
        x = Gdx.input.getX();
        y = Gdx.input.getY();
        if(x < deltaX * 50 / 100 && y > deltaY * 35 / 100 && y < deltaY * 65 / 100){
            position.x -= 1;
            currentFrame = animation.getKeyFrame(4 + stateTime);
        }
        if(x > deltaX * 50 / 100 && y > deltaY * 35 / 100 && y < deltaY * 65 / 100){
            position.x += 1;
            currentFrame = animation.getKeyFrame(8 + stateTime);
        }
        if(y < deltaY * 35 / 100 ){
            position.y += 1;
            currentFrame = animation.getKeyFrame(12 + stateTime);
        }
        if(y > deltaY * 65 / 100 ){
            position.y -= 1;
            currentFrame = animation.getKeyFrame(0 + stateTime);
        }
    }
}


public Vector2 getPosition() {
    return position;
}
public void setPosition(Vector2 position) {
    this.position = position;
}
public TextureRegion getCurrentFrame() {
    return currentFrame;
}
}

.

public class PlayScreen implements Screen {

private SpriteBatch batch;
private Vector2 position;
private Game game;
private Player player;
private Texture bild;

public PlayScreen(Game game){
    this.game = game;
}

@Override
public void render(float delta) {       
    Gdx.gl.glClearColor(1, 1, 1, 1);
    Gdx.gl.glClear(GL20.GL_COLOR_BUFFER_BIT);
    player.update();
    batch.begin();
    batch.draw(player.getCurrentFrame(), player.getPosition().x, player.getPosition().y);
    batch.end();
}

@Override
public void resize(int width, int height) {
    // TODO Auto-generated method stub

}

@Override
public void show() {
    batch = new SpriteBatch();
    position = new Vector2(Gdx.graphics.getWidth() / 2, Gdx.graphics.getHeight() / 2);
    player = new Player(position);
    bild = new Texture("spongebob.png");
}

@Override
public void hide() {
    // TODO Auto-generated method stub

}

@Override
public void pause() {
    // TODO Auto-generated method stub

}

@Override
public void resume() {
    // TODO Auto-generated method stub

}

@Override
public void dispose() {
    batch.dispose();

}

}

Logcat

11-25 11:25:20.990: D/dalvikvm(862): Trying to load lib /data/app-lib/com.mygdx.game.android-2/libgdx.so 0xb1caad50
11-25 11:25:21.040: D/dalvikvm(862): Added shared lib /data/app-lib/com.mygdx.game.android-2/libgdx.so 0xb1caad50
11-25 11:25:21.040: D/dalvikvm(862): No JNI_OnLoad found in /data/app-lib/com.mygdx.game.android-2/libgdx.so 0xb1caad50, skipping init
11-25 11:25:21.100: D/AndroidRuntime(862): Shutting down VM
11-25 11:25:21.100: W/dalvikvm(862): threadid=1: thread exiting with uncaught exception (group=0xb1a73d70)
11-25 11:25:21.110: E/AndroidRuntime(862): FATAL EXCEPTION: main
11-25 11:25:21.110: E/AndroidRuntime(862): Process: com.mygdx.game.android, PID: 862
11-25 11:25:21.110: E/AndroidRuntime(862): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mygdx.game.android/com.mygdx.game.android.AndroidLauncher}: com.badlogic.gdx.utils.GdxRuntimeException: Libgdx requires OpenGL ES 2.0
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2197)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2258)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.ActivityThread.access$800(ActivityThread.java:138)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1209)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.os.Handler.dispatchMessage(Handler.java:102)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.os.Looper.loop(Looper.java:136)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.ActivityThread.main(ActivityThread.java:5026)
11-25 11:25:21.110: E/AndroidRuntime(862):  at java.lang.reflect.Method.invokeNative(Native Method)
11-25 11:25:21.110: E/AndroidRuntime(862):  at java.lang.reflect.Method.invoke(Method.java:515)
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:777)
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:602)
11-25 11:25:21.110: E/AndroidRuntime(862):  at dalvik.system.NativeStart.main(Native Method)
11-25 11:25:21.110: E/AndroidRuntime(862): Caused by: com.badlogic.gdx.utils.GdxRuntimeException: Libgdx requires OpenGL ES 2.0
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.badlogic.gdx.backends.android.AndroidGraphics.createGLSurfaceView(AndroidGraphics.java:122)
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.badlogic.gdx.backends.android.AndroidGraphics.<init>(AndroidGraphics.java:102)
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.badlogic.gdx.backends.android.AndroidGraphics.<init>(AndroidGraphics.java:95)
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.badlogic.gdx.backends.android.AndroidApplication.init(AndroidApplication.java:133)
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.badlogic.gdx.backends.android.AndroidApplication.initialize(AndroidApplication.java:99)
11-25 11:25:21.110: E/AndroidRuntime(862):  at com.mygdx.game.android.AndroidLauncher.onCreate(AndroidLauncher.java:14)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.Activity.performCreate(Activity.java:5242)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1087)
11-25 11:25:21.110: E/AndroidRuntime(862):  at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2161)
11-25 11:25:21.110: E/AndroidRuntime(862):  ... 11 more

我是 Java 新手所以我希望这是正确的部分:x

I'm pretty new in Java so I hope it's the right part :x

推荐答案

已经有一些人出现异常，logcat 说:

There has been some persons with exceptions where the logcat says:

GdxRuntimeException: Libgdx requires OpenGL ES 2.0   

这是由于您的模拟器没有使用您的 gpu 进行图形处理，最好的解决方案是使用您的手机测试您的应用程序，但如果由于任何原因您不能，您可以像 @AngelAngel 一样应用此解决方案:libgdx android 启动失败.
出于某种原因(可能是opengl没有出现故障)以下错误的解决方案也可能对您有所帮助

This is due to your emulator not using your gpu for graphics and the best solution would be to use your phone to test your application but if for any reason you can't you can as @AngelAngel apply this solution: libgdx android failed on launch.
For some reason ( probably the opengl not glitching ) the solution to the following error might also help you

 com.badlogic.gdx.utils.GdxRuntimeException: Error reading file: xxx.xxx

如果您仅在 Android 上进行试验而在 Windows 上运行时遇到此错误，则可能是因为您的资产之一与您在代码中使用的名称不完全匹配.Unix 区分大小写，因此 image.jpg 与 Image.jpg 不同.所以检查你必须的每一个资产，看看名字是否匹配！

If you have this error only while experimenting in Android while it works on Windows it probably is because one of your assets doesn't exactly match the name you used on your code. Unix is case-sensative so image.jpg is different from Image.jpg . So check every asset you have to see if the names match!

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