回调 数据传递

    public OnTouchCrossListener onTouchCrossListener;
    public interface OnTouchCrossListener {
        void onTouchCross(Object... data);
    }
    public void setOnTouchCrossListener(OnTouchCrossListener l) {
        this.onTouchCrossListener = l;
    }

    @Override
    public boolean onTouchEvent(MotionEvent event) {
        switch (event.getAction()) {
            case MotionEvent.ACTION_DOWN:
            case MotionEvent.ACTION_MOVE:
                x= event.getX();
                y = event.getY();
                drawWave.onTouchCrossListener.onTouchCross(x,y);
            case MotionEvent.ACTION_UP :
                mXCross = -1f;
                mCrossEnabled = false;
                // 重绘
                if(myThread!=null && myThread.myHandler != null) {
                    myThread.myHandler.sendEmptyMessage(0);
                }
                break;
        }
        return true;
    }

mSurfaceView.setOnTouchCrossListener(new StockDrawWave.OnTouchCrossListener() {
			@Override
			public void onTouchCross(Object... data) {// 此方法在StockDrawWave中子线程中被调用
                                        // 子线程不能直接更新当前主线程的UI。需要开启另外的线程，并利用handler发送消息到主线程
				final String xtime = (String)data[0];
				final float y = (float)data[1];
				App.post(new Runnable() {// 
					@Override
					public void run() {
						setTextViewFS(xtime, y, mYesterdayClosePrice);
					}
				});
//				Print.e("xtime,y",xtime + "," + y);
			}
		});