android - Android: アニメーションで onTouch の 2 つのオブジェクト (円) を回転させます

Question

基本的には、2 つの円 (赤と青) を描き、回転アニメーションで回転させたいだけです。すでに何日も試していますが、成功していません。

また、アニメーション メソッドを GameView クラスに移動しようとしましたが、そこでも機能しませんでした。

現在、onTouch でクラッシュするだけです。これまでの私のコードは次のとおりです。

ゲーム画面

    public class GameScreen  extends Activity  {

    private GameView myGameView;
    private DrawThread drawThread ;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_game_screen);

        myGameView = (GameView) (findViewById(R.id.gameView1));

        myGameView.setZOrderOnTop(true);
        myGameView.getHolder().setFormat(PixelFormat.TRANSLUCENT);
    }


    public boolean onTouchEvent(MotionEvent e) {
        int eventaction = e.getAction();
        switch (eventaction) {
            case MotionEvent.ACTION_DOWN:
                System.out.println("Clicked");
                myGameView.rotate(myGameView);
                myGameView.invalidate();
                break;

        }
        return true;
    }
}

ゲームビュー

    public class GameView extends SurfaceView implements
        SurfaceHolder.Callback {


    private BleenCatcher blueCatcher;
    private BleenCatcher redCatcher;
    private DrawThread drawThread;
    private int colorBlue = -16776961;
    private int colorRed = -65536;



    public GameView(Context context) {
        super(context);
        initialize();
    }

    public GameView(Context context, AttributeSet attrs) {
        super(context, attrs);
        initialize();
    }

    public GameView(Context context, AttributeSet attrs, int defStyle) {
        super(context, attrs, defStyle);
        initialize();
    }

    private void initialize() {
        getHolder().addCallback(this);
        drawThread = new DrawThread(getHolder(), this);
        setFocusable(true);
    }

    public void surfaceCreated(SurfaceHolder holder) {
        blueCatcher = new BleenCatcher(540, 850, colorBlue);
        redCatcher = new BleenCatcher(540, 950, colorRed);
        drawThread.setRunning(true);
        drawThread.start();
    }

    public void surfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int  
       arg3) {
        // TODO Auto-generated method stub
    }

    public void surfaceDestroyed(SurfaceHolder arg0) {
        boolean retry = true;
        drawThread.setRunning(false);
        while (retry) {
            try {
                drawThread.join();
                retry = false;
            } catch (InterruptedException e) {   }
        }
    }

    public void onDraw(Canvas canvas) {

        redCatcher.onDraw(canvas);
        blueCatcher.onDraw(canvas);
    }

    public void rotate(GameView game ){
        redCatcher.changePosition(game);
        blueCatcher.changePosition(game);

    }

}

ブリーンキャッチャー

    public class BleenCatcher {

    int x, y, rad = 50;
    private Animation anima;
    private boolean rotate = false;
    private GameView myGameView;
    BleenPaint catcherPaint;


    public BleenCatcher(int x, int y, int color) {
        this.x = x;
        this.y = y;
        catcherPaint = new BleenPaint(1, Paint.Cap.SQUARE, Paint.Style.FILL,
            color);
    }


    public void onDraw(Canvas canvas) {
        if(rotate){
            canvas.drawCircle(x, y, rad, catcherPaint);
            createAnimation(canvas);
            rotate = false;
        }else{
            canvas.drawCircle(x, y, rad, catcherPaint);
        }
     }


    public void changePosition(GameView game){
        rotate = true;
        myGameView = game;
    }


    protected void createAnimation(Canvas canvas) {
        anima = new RotateAnimation(0, 180, 540 , 850);
        anima.setRepeatMode(Animation.RESTART);
        anima.setRepeatCount(Animation.INFINITE);
        anima.setDuration(1000L);
        myGameView.startAnimation(anima);
    }
}

ドロースレッド

    public class DrawThread extends Thread {
    private SurfaceHolder surfaceHolder;
    private GameView surfaceView;
    private boolean run = false;

    public DrawThread(SurfaceHolder surfaceHolder, GameView surfaceView) {
        this.surfaceHolder = surfaceHolder;
        this.surfaceView = surfaceView;
        run = false;
    }

    public void setRunning(boolean run) {
        Log.d("setRunning@DrawThread", "Run status is " + run);
        this.run = run;
    }

    @Override
    public void run() {
        Canvas canvas = null;
        while (run) {
            try {
                canvas = surfaceHolder.lockCanvas(null);
                synchronized (surfaceHolder) {
                    surfaceView.onDraw(canvas);
                }
            } finally {
                if (canvas != null) {
                    surfaceHolder.unlockCanvasAndPost(canvas);
                }
            }
        }
    }
}

ブリーンペイント

    public class BleenPaint extends Paint {
    public BleenPaint(int strokeWidth, Paint.Cap cap, Paint.Style style,
                  int color) {
        setStrokeWidth(strokeWidth);
        setAntiAlias(true);
        setStrokeCap(cap);
        setStyle(style);
        setColor(color);
    }
}

どんな助けでも大歓迎です。