线程同步问题和动画问题，高手进来帮忙一下

[xzx983]

这是我的思路

出现的问题：线程不会同步，问题在哪里？
补充：
我在主界面直接放置了两个自定义组件：GameView和CDiceAnimation

部分代码：
GameUIActivity

public class GameUIActivity extends AppCompatActivity implements Handler.Callback {
    Handler mMainHandler;
    Handler mGameHandler;
    GameView mGameView;
    GameDesk mGameDesk;
    CDiceAnimation mDice;
@Override
    public boolean handleMessage(Message msg) {
        switch (msg.what){
            case MessagesDefine.DICE_HIDE://隐藏骰子
                mDice.setVisibility(View.INVISIBLE); break;
            case MessagesDefine.DICE_SHOW:
                mDice.setVisibility(View.VISIBLE);
            case MessagesDefine.GAME_DISPLAY_DESK:
                if (mGameDesk.mGameState == GameState.PrepareGame){
                    mGameView.invalidate();
                }
                break;
        }
        return false;
    }
 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_game_ui);
        mGameView = (GameView) findViewById(R.id.gameDisplayView);
        mDice = (CDiceAnimation) findViewById(R.id.imageViewAnim);
        InitGame();
    }
    void InitGame(){
        mMainHandler = new Handler( this);
        mGameDesk = new GameDesk(this);
        mGameView.mGameDesk = mGameDesk;
          …………
        mDice.mThread = new Thread(mDice);
        mDice.mThread.start();
        mGameDesk.start();      //准备游戏线程
        mGameHandler = new Handler(mGameDesk);
        mGameHandler.sendEmptyMessage(MessagesDefine.GAME_START);     //游戏开始
    }
}

CDiceAnimation

public class CDiceAnimation extends ImageView implements Runnable,Handler.Callback{
     Handler mDiceHandler;
    GameDesk mGameDesk;
    public int mResult;    //最后返回的结果
    int mRand1,mRand2;//两个骰子显示的数字，他们的和为最总的结果   mResult;
    Thread mThread;
    Handler mUIHandler;

      @Override
    protected void onDraw(Canvas canvas) {
        super.onDraw(canvas);
        if (mBitmapDice == null) return;
        canvas.drawBitmap(mBitmapBuffer,0,0,null);
    }

    @Override
    public void run() {
        Looper.prepare();
        mDiceHandler = new Handler(this);
        Looper.loop();
    }
     @Override
    public boolean handleMessage(Message msg) {
        switch (msg.what){
            case MessagesDefine.DICE_SET_PLAYER:
                mResult = 0;
                new Thread(new Runnable() {
                    @Override
                    @SuppressWarnings("unchecked")
                    public void run() {
                    Log.w("Dice","开始扔骰子，起庄");
                    mCanvas.drawText("起  庄",mScreenWidth * 4/9,mScreenHeight * 5/14,mPaint);
                    startDice();
                    Log.w("Dice","起庄结果：mResult = "  + mResult);
                    try {
                        //向阻塞队列中 压入结果CGameDesk中定义：public LinkedBlockingQueue mDiceResult
//下面这句会有个警告unchecked call to add(E)，怎么处理一下？
                        mGameDesk.mDiceResult.put(mResult); 
                    }catch (InterruptedException ie){
                        Log.e("Dice","出错，阻塞队列已满");
                    }
                    mGameDesk.mGameHandler.sendEmptyMessage(MessagesDefine.GAME_SET_FIRST_PLAYER);
                    }
                }).start();
                break;
         }
        return false;
    }
    public  void startDice(){
        mUIHandler.sendEmptyMessage(MessagesDefine.DICE_SHOW
        ……        //改变位置、载入位图资源、绘制到缓存位图，定时更新缓存位图postInvalidate()；
        mResult = mRand1 + mRand2 + 2;            //最后的结果，两个骰子的和
        mUIHandler.sendEmptyMessage(MessagesDefine.DICE_HIDE);
     }
}

GameDesk

 public class GameDesk extends Thread implements Handler.Callback {
      public CDiceAnimation mDice;    //骰子
    public LinkedBlockingQueue mDiceResult = new LinkedBlockingQueue(1); //阻塞队列，同步数据
    public Handler mGameHandler;
    public Handler mMainHandler;
    private  GameUIActivity mGameUIActivity;
@Override
    public boolean handleMessage(Message msg) {
        switch (msg.what){
            case MessagesDefine.GAME_START:
                PrepareGame();  break;
            case MessagesDefine.GAME_SET_FIRST_PLAYER:
                SetTheFirstPlayer(); break;
            case MessagesDefine.GAME_SET_FIRST_MJ:
                SetTheFirstMJ();  break;
        }
        return false;
    }
   private void SetTheFirstPlayer(){// 设定庄家
        Log.e("GameDesk","SetTheFirstPlayer");
        int iRet = 0 ;
        try {
            iRet = (int) mDiceResult.take();
        }catch (InterruptedException ie){
            ie.printStackTrace();
        }
        try {
            if (iRet == 0 ){
                throw new Exception("骰子线程出错，没有返回结果");
            }
        }catch (Exception e){
            Log.e("GameDesk","SetTheFirstPlayer中没有接受返回结果，骰子线程出错，没有返回结果");
        }


        if (mGameCount == 0 ){// 第一局
            iRet = (iRet - 1) % 4;
            mTheFirstPlayer = mPlayer[iRet];
        }else {//  不是第一局
            if (mContinueCount ==0) //没有连庄
                 mTheFirstPlayer = mTheFirstPlayer.mNext;
           // else//连庄
            //   mTheFirstPlayer;//mTheFirstPlayer不变
        }
        Log.w("GameDesk","SetTheFirstPlayer 当前庄家：" + mTheFirstPlayer.mIndex +mTheFirstPlayer.mName);
        try {
            sleep(500);
        }catch (InterruptedException ie){
            ie.printStackTrace();
        }
        mDice.mDiceHandler.sendEmptyMessage(MessagesDefine.DICE_SET_FIRST_MJ);
    }
 private void SetTheFirstMJ(){
//略……
}

    @Override
    public void run() {
        super.run();
        Looper.prepare();
        mGameHandler = new Handler(this);
        Looper.loop();
    }


}

public class GameView extends ImageView {
@Override
    protected void dispatchDraw(Canvas canvas) {
        super.dispatchDraw(canvas);
        if (mPaint == null)
            mPaint = new Paint();
        if (mDrawBuffer == null || mDrawBuffer.isRecycled())
            mDrawBuffer = BitmapFactory.decodeResource(getResources(),R.drawable.bg1);
        DrawMenuAndOther(canvas,mPaint);
        if (mGameDesk.mGameState == GameState.DrawDesk ){
            DrawAllUnitInOrder(canvas,mPaint);//绘制桌面
            //mGameDesk.mGameHandler.sendEmptyMessage(MessagesDefine.GAME_SET_FIRST_PLAYER);
            mDice.mDiceHandler.sendEmptyMessage(MessagesDefine.DICE_SET_PLAYER); //开始骰子动画
        }
        if (mGameDesk.mGameState == GameState.DispatchMJ){
            DrawInDispatch(canvas,null);
        }

    }
}

[xzx983]

线程的lock与unlocked区域或者synchronized ()区域用invalidate（）刷新界面，貌似OnDraw要等到 “ lock与unlocked区域或者synchronized () ”结束以后才会执行？

[键盘舞者113]

我就加个状态改变就好了

    @Override
    protected void dispatchDraw(Canvas canvas) {
        super.dispatchDraw(canvas);
        if (mPaint == null)
            mPaint = new Paint();
        if (mDrawBuffer == null || mDrawBuffer.isRecycled())
            mDrawBuffer = BitmapFactory.decodeResource(getResources(),R.drawable.bg1);
        DrawMenuAndOther(canvas,mPaint);
        if (mGameDesk.mGameState == GameState.DrawDesk ){
            DrawAllUnitInOrder(canvas,mPaint);
            //mGameDesk.mGameHandler.sendEmptyMessage(MessagesDefine.GAME_SET_FIRST_PLAYER);
            mDice.mDiceHandler.sendEmptyMessage(MessagesDefine.DICE_SET_PLAYER);
            mGameDesk.mGameState = GameState.DispatchMJ;

        }
        if (mGameDesk.mGameState == GameState.DispatchMJ){
            DrawInDispatch(canvas,null);
        }

    }

[xzx983]

难道说，GameView的dispatchDraw执行了两次？所以dice开了两个线程？ 那么绘制的时机在哪里啊

[xzx983]

引用 2 楼 z979451341 的回复:

我就加个状态改变就好了

    @Override
    protected void dispatchDraw(Canvas canvas) {
        super.dispatchDraw(canvas);
        if (mPaint == null)
            mPaint = new Paint();
        if (mDrawBuffer == null || mDrawBuffer.isRecycled())
            mDrawBuffer = BitmapFactory.decodeResource(getResources(),R.drawable.bg1);
        DrawMenuAndOther(canvas,mPaint);
        if (mGameDesk.mGameState == GameState.DrawDesk ){
            DrawAllUnitInOrder(canvas,mPaint);
            //mGameDesk.mGameHandler.sendEmptyMessage(MessagesDefine.GAME_SET_FIRST_PLAYER);
            mDice.mDiceHandler.sendEmptyMessage(MessagesDefine.DICE_SET_PLAYER);
            mGameDesk.mGameState = GameState.DispatchMJ;

        }
        if (mGameDesk.mGameState == GameState.DispatchMJ){
            DrawInDispatch(canvas,null);
        }

    }

难道说，GameView的dispatchDraw执行了两次？所以dice开了两个线程？ 那么绘制的时机在哪里啊 老大，会不会是，在界面上Dice覆盖了GameView会造成这个结果吗？