Java 活动正在被破坏

我只想感谢昨天回复我帖子的人，这对我帮助很大，但现在话题不同了。我设法修复了NPE，但显然我的活动被破坏了

这是logcat：

03-26 06:55:27.411: E/AndroidRuntime(1321): java.lang.IllegalStateException: Activity has been destroyed
03-26 06:55:27.411: E/AndroidRuntime(1321):     at android.support.v4.app.FragmentManagerImpl.enqueueAction(FragmentManager.java:1342)
03-26 06:55:27.411: E/AndroidRuntime(1321):     at android.support.v4.app.BackStackRecord.commitInternal(BackStackRecord.java:595)
03-26 06:55:27.411: E/AndroidRuntime(1321):     at android.support.v4.app.BackStackRecord.commit(BackStackRecord.java:574)
03-26 06:55:27.411: E/AndroidRuntime(1321):     at As2.packageTK.TicTacToeGame.changeLayout(TicTacToeGame.java:157)
03-26 06:55:27.411: E/AndroidRuntime(1321):     at As2.packageTK.TicTacToeGame.checkTurn(TicTacToeGame.java:132)
03-26 06:55:27.411: E/AndroidRuntime(1321):     at As2.packageTK.PlayerTurn1$1.onClick(PlayerTurn1.java:34)
03-26 06:55:27.411: E/AndroidRuntime(1321):     at android.view.View.performClick(View.java:4202)

以下是位于my TictoEgame FragmentActivity类中的checkTurn（）和changeLayout（）：

public class TicTacToeGame extends FragmentActivity{

    //fields..
    public int checkTurn()
    {
        if(turn == 1)
        {
            changeLayout(turn);
            turn = 2;
            return 1;
        }
        else
        {
            changeLayout(turn);
            turn = 1;
            return 2;
        }
    }

    //changeLayout method
    public void changeLayout(int turn)
    {
        FragmentManager fm       = getSupportFragmentManager();
        Fragment        fragment = fm.findFragmentById(R.id.fragment_container);
        FragmentTransaction ft;

        if(turn == 1) //if its player 1's turn
        {  
            if(fragment == null) //checks wether the current framelayout contains a fragment or not
            {   
                ft = fm.beginTransaction();
                ft.add(R.id.fragment_container, new PlayerTurn1());
                ft.commit(); 
                //setPlayer1();
            }
            else
            {
                ft = fm.beginTransaction();
                ft.replace(R.id.fragment_container, new PlayerTurn1());
                ft.commit();
                //setPlayer1();

            }
        }
        else
        {   
            if(fragment == null)
            {
                ft = fm.beginTransaction();;
                ft.add(R.id.fragment_container, new PlayerTurn2());
                ft.commit(); 
                //setPlayer2();
            }
            else
            {
                ft = fm.beginTransaction();;
                ft.replace(R.id.fragment_container, new PlayerTurn2());
                ft.commit(); 
                //setPlayer2();
            }
        }
    }
}

以下是我的片段的onCreatedActivity和onCreateView：

 public View onCreateView(LayoutInflater inflater,
        ViewGroup container, Bundle savedInstanceState) {
            View view = inflater.inflate(R.layout.playerturn1, container, false);


        return view;
    }

        public void onActivityCreated(Bundle savedInstanceState) {
            super.onActivityCreated(savedInstanceState);

            doneP1 = (Button) getActivity().findViewById(R.id.doneP1);
            //resetP1 = (Button) this.getActivity().findViewById(R.id.resetP2);

            doneP1.setOnClickListener(new View.OnClickListener() {          
                public void onClick(View v) {   
                    object.checkTurn();
                }
            });
        }

---

有什么想法吗？

问题似乎出在第34行“Player1”类的“onClick”方法中。第34行是我的括号的结尾。也许我调用object.checkTurn（）时出错了？您可以在onClick中调试代码，并获得有关问题的正确见解，是吗？签出后很冷，我修复了它，花了我几个小时，代码工作正常。我正在发布一个新问题，稍后我将发布解决方案