Android GameEntwicklung App strürtz dauerd ab.

Hallo ich habe mich mal an die Game Entwicklung gewagt und habe das Problem das meine App beim Start abstürtzt.
Hier die GameActivity:

package com.example.nimaldev;

import android.app.Activity;
import android.os.Bundle;

public class GameActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(new GameView(this));
}

}

Hier der Game View

package com.example.nimaldev;

import android.content.Context;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.Color;
import android.view.SurfaceHolder;
import android.view.SurfaceView;

public class GameView extends SurfaceView {

private SurfaceHolder surfaceHolder;
private Bitmap bmp;
private int y =0;
private GameLoopThread theGameLoopThread;

public GameView(Context context) {
    super(context);
    surfaceHolder = getHolder();
    surfaceHolder.addCallback(new SurfaceHolder.Callback() {

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

                    }
                }

            }

            public void surfaceCreated(SurfaceHolder holder) {
                theGameLoopThread.setRunning(true);
                theGameLoopThread.start();
            }

        @Override
        public void surfaceChanged(SurfaceHolder holder, int format, int width,
                int height) {

        }
    });
    bmp = BitmapFactory.decodeResource(getResources(), R.drawable.ic_launcher);
}

@Override
protected void onDraw(Canvas canvas) {
    canvas.drawColor(Color.DKGRAY);
    if(y <= getHeight() - bmp.getHeight()){
        y=y+3;
    }
    canvas.drawBitmap(bmp, 25, y, null);
}

}

und hier der GameLoopThread:

package com.example.nimaldev;

import android.annotation.SuppressLint;
import android.graphics.Canvas;

public class GameLoopThread extends Thread {
private GameView theView;
private boolean isRunning = false;

public GameLoopThread(GameView theView) {
    this.theView = theView;
}

public void setRunning(boolean run) {
    isRunning = run;
}
@SuppressLint("WrongCall") 
@Override
public void run() {
    while (isRunning) {
        Canvas theCanvas = null;
        try {
            theCanvas = theView.getHolder().lockCanvas();
            synchronized (theView.getHolder()) {
                theView.onDraw(theCanvas);
            }
        } finally {
            if (theCanvas != null) {
                theView.getHolder().unlockCanvasAndPost(theCanvas);
            }
        }
    }
}

}

und hier der LogCat:

07-25 17:13:30.626: E/AndroidRuntime(24986): FATAL EXCEPTION: main

07-25 17:13:30.626: E/AndroidRuntime(24986): Process: com.example.nimaldev, PID: 24986
07-25 17:13:30.626: E/AndroidRuntime(24986): java.lang.NullPointerException
07-25 17:13:30.626: E/AndroidRuntime(24986): at com.example.nimaldev.GameView$1.surfaceCreated(GameView.java:38)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.SurfaceView.updateWindow(SurfaceView.java:601)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.SurfaceView.access$000(SurfaceView.java:94)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.SurfaceView$3.onPreDraw(SurfaceView.java:183)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.ViewTreeObserver.dispatchOnPreDraw(ViewTreeObserver.java:879)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:2129)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1234)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:6465)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.Choreographer$CallbackRecord.run(Choreographer.java:803)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.Choreographer.doCallbacks(Choreographer.java:603)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.Choreographer.doFrame(Choreographer.java:573)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:789)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.os.Handler.handleCallback(Handler.java:733)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.os.Handler.dispatchMessage(Handler.java:95)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.os.Looper.loop(Looper.java:157)
07-25 17:13:30.626: E/AndroidRuntime(24986): at android.app.ActivityThread.main(ActivityThread.java:5356)
07-25 17:13:30.626: E/AndroidRuntime(24986): at java.lang.reflect.Method.invokeNative(Native Method)
07-25 17:13:30.626: E/AndroidRuntime(24986): at java.lang.reflect.Method.invoke(Method.java:515)
07-25 17:13:30.626: E/AndroidRuntime(24986): at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1265)
07-25 17:13:30.626: E/AndroidRuntime(24986): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1081)
07-25 17:13:30.626: E/AndroidRuntime(24986): at dalvik.system.NativeStart.main(Native Method)
07-25 17:13:32.668: I/Process(24986): Sending signal. PID: 24986 SIG: 9

— geändert am 25.07.2014, 17:18:47

Ja das weiß ich auch nur hab ich das Problem das ich nichgt weiß wie ich das behebe weil in dem Video von Panjutorials funktioniert es perfekt

hab den fehler hatte in der Gameview class vergessen den GameloopThread zu übergeben