java - android 的 libGDX 动画

Question

如果我为桌面启动它，它运行得很好，但在为我的 Android 导出后，它在我启动应用程序后立即崩溃。

所以我的问题...:

它适用于桌面但不适用于我的 Android，这是怎么回事？

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();

}

}

日志

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

Answer 1

有一些异常(exception)情况，logcat 说:

GdxRuntimeException: Libgdx requires OpenGL ES 2.0   

这是因为您的模拟器没有将您的 gpu 用于图形，最好的解决方案是使用您的手机来测试您的应用程序，但如果出于任何原因您不能，您可以像@AngelAngel 一样应用此解决方案:libgdx android failed on launch .
出于某种原因(可能是 opengl 没有故障)以下错误的解决方案也可能对您有所帮助

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

如果您仅在 Android 上进行试验时出现此错误，而它在 Windows 上运行，则可能是因为您的 Assets 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 不同于 Image.jpg 。因此，请检查您拥有的每项 Assets ，看看名称是否匹配!