我的代码PhysicsRemoveExample.java（AndEngine）有什么问题？

Question

尝试从 此处。

程序启动时收到此消息：

Sorry! The application PhysicsRemoveExample(process org.anddev.andengine.PhysicsRemoveExample) has stopped unexpectedly. Please try again.

我有构建路径 andengine.jar 和 andenginephysicalsbox2dextension.jar 资产/gfx -> face_box_tiled.png 和 face_circle_tiled.png。

这是我在 PhysicsRemoveExample.java 中的 Java 代码。与示例中相同，但我已更改为 extends BaseGameActivity。

package org.anddev.andengine.PhysicsRemoveExample;

import org.anddev.andengine.engine.Engine;
import org.anddev.andengine.engine.camera.Camera;
import org.anddev.andengine.engine.options.EngineOptions;
import org.anddev.andengine.engine.options.EngineOptions.ScreenOrientation;
import org.anddev.andengine.engine.options.resolutionpolicy.RatioResolutionPolicy;
import org.anddev.andengine.entity.primitive.Rectangle;
import org.anddev.andengine.entity.scene.Scene;
import org.anddev.andengine.entity.scene.Scene.IOnAreaTouchListener;
import org.anddev.andengine.entity.scene.Scene.IOnSceneTouchListener;
import org.anddev.andengine.entity.scene.Scene.ITouchArea;
import org.anddev.andengine.entity.scene.background.ColorBackground;
import org.anddev.andengine.entity.shape.Shape;
import org.anddev.andengine.entity.sprite.AnimatedSprite;
import org.anddev.andengine.entity.util.FPSLogger;
import org.anddev.andengine.extension.physics.box2d.PhysicsConnector;
import org.anddev.andengine.extension.physics.box2d.PhysicsFactory;
import org.anddev.andengine.extension.physics.box2d.PhysicsWorld;
import org.anddev.andengine.input.touch.TouchEvent;
import org.anddev.andengine.opengl.texture.Texture;
import org.anddev.andengine.opengl.texture.TextureOptions;
import org.anddev.andengine.opengl.texture.region.TextureRegionFactory;
import org.anddev.andengine.opengl.texture.region.TiledTextureRegion;
import org.anddev.andengine.sensor.accelerometer.AccelerometerData;
import org.anddev.andengine.sensor.accelerometer.IAccelerometerListener;
import org.anddev.andengine.ui.activity.BaseGameActivity;

import android.hardware.SensorManager;
import android.widget.Toast;

import com.badlogic.gdx.math.Vector2;
import com.badlogic.gdx.physics.box2d.Body;
import com.badlogic.gdx.physics.box2d.FixtureDef;
import com.badlogic.gdx.physics.box2d.BodyDef.BodyType;


/**
 * @author Nicolas Gramlich
 * @since 18:47:08 - 19.03.2010
 */
public class PhysicsRemoveExample extends BaseGameActivity implements IAccelerometerListener, IOnSceneTouchListener, IOnAreaTouchListener {
        // ===========================================================
        // Constants
        // ===========================================================


        private static final int CAMERA_WIDTH = 720;
        private static final int CAMERA_HEIGHT = 480;


        // ===========================================================
        // Fields
        // ===========================================================


        private Texture mTexture;


        private TiledTextureRegion mBoxFaceTextureRegion;
        private TiledTextureRegion mCircleFaceTextureRegion;


        private PhysicsWorld mPhysicsWorld;


        private int mFaceCount = 0;


        private final Vector2 mTempVector = new Vector2();


        // ===========================================================
        // Constructors
        // ===========================================================


        // ===========================================================
        // Getter & Setter
        // ===========================================================


        // ===========================================================
        // Methods for/from SuperClass/Interfaces
        // ===========================================================


        @Override
        public Engine onLoadEngine() {
                Toast.makeText(this, "Touch the screen to add objects. Touch an object to remove it.", Toast.LENGTH_LONG).show();
                final Camera camera = new Camera(0, 0, CAMERA_WIDTH, CAMERA_HEIGHT);


                final EngineOptions engineOptions = new EngineOptions(true, ScreenOrientation.LANDSCAPE, new RatioResolutionPolicy(CAMERA_WIDTH, CAMERA_HEIGHT), camera);
                engineOptions.getTouchOptions().setRunOnUpdateThread(true);


                return new Engine(engineOptions);
        }


        @Override
        public void onLoadResources() {
                this.mTexture = new Texture(64, 64, TextureOptions.BILINEAR_PREMULTIPLYALPHA);
                TextureRegionFactory.setAssetBasePath("gfx/");
                this.mBoxFaceTextureRegion = TextureRegionFactory.createTiledFromAsset(this.mTexture, this, "face_box_tiled.png", 0, 0, 2, 1); // 64x32
                this.mCircleFaceTextureRegion = TextureRegionFactory.createTiledFromAsset(this.mTexture, this, "face_circle_tiled.png", 0, 32, 2, 1); // 64x32
                this.mEngine.getTextureManager().loadTexture(this.mTexture);


                this.enableAccelerometerSensor(this);
        }


        @Override
        public Scene onLoadScene() {
                this.mEngine.registerUpdateHandler(new FPSLogger());


                final Scene scene = new Scene(2);
                scene.setBackground(new ColorBackground(0, 0, 0));
                scene.setOnSceneTouchListener(this);


                this.mPhysicsWorld = new PhysicsWorld(new Vector2(0, SensorManager.GRAVITY_EARTH), false);


                final Shape ground = new Rectangle(0, CAMERA_HEIGHT - 2, CAMERA_WIDTH, 2);
                final Shape roof = new Rectangle(0, 0, CAMERA_WIDTH, 2);
                final Shape left = new Rectangle(0, 0, 2, CAMERA_HEIGHT);
                final Shape right = new Rectangle(CAMERA_WIDTH - 2, 0, 2, CAMERA_HEIGHT);


                final FixtureDef wallFixtureDef = PhysicsFactory.createFixtureDef(0, 0.5f, 0.5f);
                PhysicsFactory.createBoxBody(this.mPhysicsWorld, ground, BodyType.StaticBody, wallFixtureDef);
                PhysicsFactory.createBoxBody(this.mPhysicsWorld, roof, BodyType.StaticBody, wallFixtureDef);
                PhysicsFactory.createBoxBody(this.mPhysicsWorld, left, BodyType.StaticBody, wallFixtureDef);
                PhysicsFactory.createBoxBody(this.mPhysicsWorld, right, BodyType.StaticBody, wallFixtureDef);


                scene.getBottomLayer().addEntity(ground);
                scene.getBottomLayer().addEntity(roof);
                scene.getBottomLayer().addEntity(left);
                scene.getBottomLayer().addEntity(right);


                scene.registerUpdateHandler(this.mPhysicsWorld);


                scene.setOnAreaTouchListener(this);


                return scene;
        }


        @Override
        public boolean onAreaTouched(final TouchEvent pSceneTouchEvent, final ITouchArea pTouchArea, final float pTouchAreaLocalX, final float pTouchAreaLocalY) {
                if(pSceneTouchEvent.getAction() == TouchEvent.ACTION_DOWN) {
                        PhysicsRemoveExample.this.removeFace((AnimatedSprite)pTouchArea);
                        return true;
                }


                return false;
        }


        public void onLoadComplete() {


        }


        @Override
        public boolean onSceneTouchEvent(final Scene pScene, final TouchEvent pSceneTouchEvent) {
                if(this.mPhysicsWorld != null) {
                        if(pSceneTouchEvent.getAction() == TouchEvent.ACTION_DOWN) {
                                this.addFace(pSceneTouchEvent.getX(), pSceneTouchEvent.getY());
                                return true;
                        }
                }
                return false;
        }


        @Override
        public void onAccelerometerChanged(final AccelerometerData pAccelerometerData) {
                this.mTempVector.set(pAccelerometerData.getY(), pAccelerometerData.getX());


                this.mPhysicsWorld.setGravity(this.mTempVector);
        }


        // ===========================================================
        // Methods
        // ===========================================================


        private void addFace(final float pX, final float pY) {
                final Scene scene = this.mEngine.getScene();


                this.mFaceCount++;


                final AnimatedSprite face;
                final Body body;


                final FixtureDef objectFixtureDef = PhysicsFactory.createFixtureDef(1, 0.5f, 0.5f);


                if(this.mFaceCount % 2 == 0) {
                        face = new AnimatedSprite(pX, pY, this.mBoxFaceTextureRegion);
                        body = PhysicsFactory.createBoxBody(this.mPhysicsWorld, face, BodyType.DynamicBody, objectFixtureDef);
                } else {
                        face = new AnimatedSprite(pX, pY, this.mCircleFaceTextureRegion);
                        body = PhysicsFactory.createCircleBody(this.mPhysicsWorld, face, BodyType.DynamicBody, objectFixtureDef);
                }


                face.animate(200, true);
                face.setUpdatePhysics(false);


                scene.registerTouchArea(face);
                scene.getTopLayer().addEntity(face);
                this.mPhysicsWorld.registerPhysicsConnector(new PhysicsConnector(face, body, true, true, false, false));
        }


        private void removeFace(final AnimatedSprite face) {
                final Scene scene = this.mEngine.getScene();


                final PhysicsConnector facePhysicsConnector = this.mPhysicsWorld.getPhysicsConnectorManager().findPhysicsConnectorByShape(face);


                this.mPhysicsWorld.unregisterPhysicsConnector(facePhysicsConnector);
                this.mPhysicsWorld.destroyBody(facePhysicsConnector.getBody());


                scene.unregisterTouchArea(face);
                scene.getTopLayer().removeEntity(face);
        }


        // ===========================================================
        // Inner and Anonymous Classes
        // ===========================================================
}

我在 LogCat 中收到此错误：

11-12 20:31:39.482: ERROR/vold(27): Error opening switch name path '/sys/class/switch/test' (No such file or directory)
11-12 20:31:39.482: ERROR/vold(27): Error bootstrapping switch '/sys/class/switch/test' (No such file or directory)
11-12 20:31:39.482: ERROR/vold(27): Error opening switch name path '/sys/class/switch/test2' (No such file or directory)
11-12 20:31:39.482: ERROR/vold(27): Error bootstrapping switch '/sys/class/switch/test2' (No such file or directory)
11-12 20:31:55.381: ERROR/BatteryService(52): usbOnlinePath not found
11-12 20:31:55.381: ERROR/BatteryService(52): batteryVoltagePath not found
11-12 20:31:55.381: ERROR/BatteryService(52): batteryTemperaturePath not found
11-12 20:31:55.401: ERROR/SurfaceFlinger(52): Couldn't open /sys/power/wait_for_fb_sleep or /sys/power/wait_for_fb_wake
11-12 20:32:01.131: ERROR/EventHub(52): could not get driver version for /dev/input/mouse0, Not a typewriter
11-12 20:32:01.131: ERROR/EventHub(52): could not get driver version for /dev/input/mice, Not a typewriter
11-12 20:32:01.351: ERROR/System(52): Failure starting core service
11-12 20:32:01.351: ERROR/System(52): java.lang.SecurityException
11-12 20:32:01.351: ERROR/System(52):     at android.os.BinderProxy.transact(Native Method)
11-12 20:32:01.351: ERROR/System(52):     at android.os.ServiceManagerProxy.addService(ServiceManagerNative.java:146)
11-12 20:32:01.351: ERROR/System(52):     at android.os.ServiceManager.addService(ServiceManager.java:72)
11-12 20:32:01.351: ERROR/System(52):     at com.android.server.ServerThread.run(SystemServer.java:176)
11-12 20:32:01.361: ERROR/AndroidRuntime(52): Crash logging skipped, no checkin service
11-12 20:32:12.683: ERROR/ActivityThread(103): Failed to find provider info for android.server.checkin
11-12 20:32:15.853: ERROR/ActivityThread(103): Failed to find provider info for android.server.checkin
11-12 20:32:16.183: ERROR/ActivityThread(103): Failed to find provider info for android.server.checkin
11-12 20:32:17.303: ERROR/MediaPlayerService(31): Couldn't open fd for content://settings/system/notification_sound
11-12 20:32:17.313: ERROR/MediaPlayer(52): Unable to to create media player
11-12 20:32:23.833: ERROR/AndroidRuntime(135): ERROR: thread attach failed
11-12 20:32:32.292: ERROR/AndroidRuntime(178): ERROR: thread attach failed
11-12 20:32:59.373: ERROR/AndroidRuntime(225): Uncaught handler: thread main exiting due to uncaught exception
11-12 20:32:59.533: ERROR/AndroidRuntime(225): java.lang.ExceptionInInitializerError
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at org.anddev.andengine.PhysicsRemoveExample.PhysicsRemoveExample.onLoadScene(PhysicsRemoveExample.java:125)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at org.anddev.andengine.ui.activity.BaseGameActivity.doResume(BaseGameActivity.java:159)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at org.anddev.andengine.ui.activity.BaseGameActivity.onWindowFocusChanged(BaseGameActivity.java:83)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at com.android.internal.policy.impl.PhoneWindow$DecorView.onWindowFocusChanged(PhoneWindow.java:1969)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at android.view.View.dispatchWindowFocusChanged(View.java:3731)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at android.view.ViewGroup.dispatchWindowFocusChanged(ViewGroup.java:657)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at android.view.ViewRoot.handleMessage(ViewRoot.java:1819)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at android.os.Handler.dispatchMessage(Handler.java:99)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at android.os.Looper.loop(Looper.java:123)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at android.app.ActivityThread.main(ActivityThread.java:4363)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at java.lang.reflect.Method.invokeNative(Native Method)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at java.lang.reflect.Method.invoke(Method.java:521)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:860)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:618)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at dalvik.system.NativeStart.main(Native Method)
11-12 20:32:59.533: ERROR/AndroidRuntime(225): Caused by: java.lang.UnsatisfiedLinkError: Library andenginephysicsbox2dextension not found
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at java.lang.Runtime.loadLibrary(Runtime.java:489)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at java.lang.System.loadLibrary(System.java:557)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     at org.anddev.andengine.extension.physics.box2d.PhysicsWorld.<clinit>(PhysicsWorld.java:30)
11-12 20:32:59.533: ERROR/AndroidRuntime(225):     ... 15 more
11-12 20:32:59.603: ERROR/dalvikvm(225): Unable to open stack trace file '/data/anr/traces.txt': Permission denied

出了什么问题？尝试过模拟器 1.6 和 2.1 并创建了一个全新的 AVD。 我可以做 入门教程（视频 - 5 分钟）没有任何问题。

Answer 1

检查 libandenginephysicalbox2dextension.so 文件是否位于您的 libs/armeabi 文件夹中

Answer 2

这就是我为使物理原理在 Eclipse 中发挥作用所做的工作:::

1。
运行并安装：
Mercurial-2.1.exe

1. Mercurial-2.1 为您提供 HG 命令工具。

2. 在命令(DOS)提示符下使用hg工具获取最新的AndEngine
   和enginephysicalbox2扩展。使用以下hg命令>

hg 克隆 https://code.google.com/p/andenginephysicalsbox2dextension/

hg 克隆 https://andengine.googlecode.com/hg/ 和engine

1. 这将下载这两个项目。将它们导入 Eclipse 中。
   使用文件->导入->现有项目进入工作区 ->选择根目录->浏览
   找到使用hg命令下载的AndEngine项目。
   对 andenginephysicalsbox2dextension 项目执行相同的操作 - 这样您将有两个库项目
   在 Eclipse 中。

2. 您可能需要右键单击该项目并将“项目构建目标”设置为
   安卓2.3。您可能还需要在项目的根目录中创建一个 res 和 gen 文件夹。
   确保项目已编译。

3. 右键单击项目并选择导出 ->在 Java 下选择“jar 文件”选项。
   单击“下一步”。
   取消选中右侧窗格中的所有内容 - AndroidManifest.xml 以及其中的其他所有内容都在哪里
   列表取消选中它。指定 .jar 文件的位置，例如，如果您正在编译 AndEngine.jar
   您可以输入：C:\temp\andengine.jar
   在jar文件输入框中。单击“完成”- 它应该可以编译。

4. 转到此站点：

   http://code.google.com/p/andenginephysicalsbox2dextension/source/browse/libs/?name=ed03082d4a&r=38406ae958c5f5ed89e2e73e9e71385c242e8e28#libs%2Farmeabi-v7a%253Fstate%253Dlated

下载这两个 .所以这些文件需要进入：
阿尔梅阿比
armeabi-v7a

1. .jar 文件位于根目录下的 lib 文件夹中。
   .so 文件 --- 在根目录下创建一个名为 libs 的文件夹。
   在 libs 文件夹下创建两个文件夹armeabi 和armeabi-v7a——.so 文件位于这两个文件夹中。

Answer 3

只需从 andengine 示例项目中复制“libs”文件（而不是“lib”文件）并将其粘贴到您的项目中。

Answer 4

并将旧的 andengine.jar 和enginephysicalsbox2dextension.jar 删除。

并从 andengine 示例项目复制“lib”和“libs”文件夹并将其粘贴到您的项目中。并添加 lib 内部 jar 文件添加到构建路径

Answer 5

我面临着同样的问题，并且无法对发生的问题做任何事情。一次又一次。

啊，终于我能够解决这个问题并想分享了，因为一定有可能有大量的头发松散:)

我只是将尼古拉斯回购协议中的一根替换为 RealMayo 回购协议。下面是链接
https://github.com/RealMayo/AndEnginePhysicsBox2DExtension。

请告诉我。
:)

快乐编码。