Android 无法创建Arraylist，内存不足异常

我正在尝试构建一个应用程序，在这个应用程序中，我试图从数据库中获取数字，然后将它们添加到ArrayList中，下面是我的创建方法上的服务代码

public void onCreate() {
    connectivityManager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
    locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
    geocoder = new Geocoder(sendmessage.this);
    numbers=new ArrayList<String>();
    servicerunning = true;
    Log.d("here", "till here");

    ph = new phoneblock(this);
    try {
        cursor = ph.getAllContacts();
         cursor.moveToFirst();
            if(cursor!=null){
            while(cursor.isAfterLast()==false){

                numbers.add(cursor.getString(2));


            }}
            cursor.close();
    } catch (Exception e) {
    Log.d("error",e.toString());
    }

    msg = new messageholder();

    // TODO Auto-generated method stub
    mSensorManager = (SensorManager) getSystemService(Context.SENSOR_SERVICE);
    mSensorListener = new sendmessage();
    PowerManager pm = (PowerManager) getSystemService(Context.POWER_SERVICE);

    wl = pm.newWakeLock(PowerManager.FULL_WAKE_LOCK, "partial wakelock");
    wl.acquire();

    mSensorListener.setOnShakeListener(new sendmessage.OnShakeListener() {

        public void onShake() {
            Vibrator v = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
            // Vibrate for 500 milliseconds
            v.vibrate(500);

                    sendtoall();



        }
    });
    super.onCreate();

}`

在实例化这个arraylist时，我得到了这个异常

09-06 12:07:46.733: E/AndroidRuntime(339): FATAL EXCEPTION: main
09-06 12:07:46.733: E/AndroidRuntime(339): java.lang.OutOfMemoryError
09-06 12:07:46.733: E/AndroidRuntime(339):  at java.util.ArrayList.add(ArrayList.java:123)
09-06 12:07:46.733: E/AndroidRuntime(339):  at com.example.listview.sendmessage.onCreate(sendmessage.java:128)
09-06 12:07:46.733: E/AndroidRuntime(339):  at android.app.ActivityThread.handleCreateService(ActivityThread.java:1945)
09-06 12:07:46.733: E/AndroidRuntime(339):  at android.app.ActivityThread.access$2500(ActivityThread.java:117)
09-06 12:07:46.733: E/AndroidRuntime(339):  at android.app.ActivityThread$H.handleMessage(ActivityThread.java:985)
09-06 12:07:46.733: E/AndroidRuntime(339):  at android.os.Handler.dispatchMessage(Handler.java:99)
09-06 12:07:46.733: E/AndroidRuntime(339):  at android.os.Looper.loop(Looper.java:123)
09-06 12:07:46.733: E/AndroidRuntime(339):  at android.app.ActivityThread.main(ActivityThread.java:3683)
09-06 12:07:46.733: E/AndroidRuntime(339):  at java.lang.reflect.Method.invokeNative(Native Method)
09-06 12:07:46.733: E/AndroidRuntime(339):  at java.lang.reflect.Method.invoke(Method.java:507)
09-06 12:07:46.733: E/AndroidRuntime(339):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
09-06 12:07:46.733: E/AndroidRuntime(339):  at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
09-06 12:07:46.733: E/AndroidRuntime(339):  at dalvik.system.NativeStart.main(Native Method)

---

填写列表的内部循环：

while(cursor.isAfterLast() == false) {
   numbers.add(cursor.getString(2));
}

---

cursor.isAfterLast（）是否可以返回false？我没有看到任何方法调用来推进游标。我怀疑，这个循环永远不会结束，用相同的值填充数组列表，直到耗尽可用的内存。提示：可能有用。
是的，这是一个多么可耻的错误，谢谢你指出，先生！
while(cursor.isAfterLast() == false) {
   numbers.add(cursor.getString(2));
}