保存板的状态以进行定向

Question

嗨，我是android的新手，正在学习tictactoe教程。 我需要保存电路板的状态，以便当我改变方向时，电路板会显示完整的字符。 这是代码段-反复尝试字符串已保存并显示，但板上没有X和O。 我不知道为什么

MainActivity.java

           mGame = new TicTacToeGame();

       if (savedInstanceState == null) { 
            startNewGame();
            } 
            else { 
             // Restore the game's state                    
            mGame.setBoardState(savedInstanceState.getCharArray("board"));              
            mGameOver = savedInstanceState.getBoolean("mGameOver"); 
            mInfoTextView.setText(savedInstanceState.getCharSequence("info")); 
            mHumanWins = savedInstanceState.getInt("mHumanWins"); 
            mComputerWins = savedInstanceState.getInt("mComputerWins"); 
            mTies = savedInstanceState.getInt("mTies"); 
            mTurn = savedInstanceState.getChar("mTurn"); 
            } 
            displayScores(); 

       }

        @Override
    protected void onSaveInstanceState(Bundle outState) {
     super.onSaveInstanceState(outState);
     outState.putCharArray("board", mGame.getBoardState());
     outState.putBoolean("mGameOver", mGameOver);
     outState.putInt("mHumanWins",Integer.valueOf(mHumanWins));
     outState.putInt("mComputerWins",Integer.valueOf(mComputerWins));
     outState.putInt("mTies", Integer.valueOf(mTies));
     outState.putCharSequence("info", mInfoTextView.getText());
     outState.putChar("mTurn", mTurn);
    }

以下是tictactoe游戏中返回棋盘状态的方法：

    public char[] getBoardState() {
    return mBoard;
}

public void setBoardState(char[] board) {
    mBoard = board.clone();
}

在此先感谢您的帮助。

Answer 1

我认为问题可能出在您的setBoardGame方法中。 clone（）方法返回类型“ Object”，但是mBoard类型为“ char []”（字符数组）。 因此，您需要从Object类型转换为char []类型

尝试这个：

public void setBoardState(char[] board) {
    mBoard = (char[]) board.clone();
}

Answer 2

尝试

public char[] getBoardState() {
return mBoard.clone();

}