public override bool OnTouchEvent(MotionEvent e)
{
switch (e.Action)
{
case MotionEventActions.Down:
et = JavaSystem.CurrentTimeMillis();
dx = (int)e.GetX();
dy = (int)e.GetY();
mTouch.X = dx;
mTouch.Y = dy;
actiondownX = dx;
actiondownY = dy;
touch_down = 0;
pagefactory.onDraw(mCurrentPageCanvas);
if (actiondownX >= mScreenWidth / 3 && actiondownX <= mScreenWidth * 2 / 3 &&
actiondownY >= mScreenHeight / 3 && actiondownY <= mScreenHeight * 2 / 3)
{
center = true;
}
else
{
center = false;
calcCornerXY(actiondownX, actiondownY);
if (actiondownX < mScreenWidth / 2) // 从左翻
{
BookStatus status = pagefactory.prePage();
if (status == BookStatus.NO_PRE_PAGE)
{
ToastUtils.showSingleToast("没有上一页啦");
return(false);
}
else if (status == BookStatus.LOAD_SUCCESS)
{
abortAnimation();
pagefactory.onDraw(mNextPageCanvas);
}
else
{
return(false);
}
}
else if (actiondownX >= mScreenWidth / 2) // 从右翻
{
BookStatus status = pagefactory.nextPage();
if (status == BookStatus.NO_NEXT_PAGE)
{
ToastUtils.showSingleToast("没有下一页啦");
return(false);
}
else if (status == BookStatus.LOAD_SUCCESS)
{
abortAnimation();
pagefactory.onDraw(mNextPageCanvas);
}
else
{
return(false);
}
}
listener.onFlip();
setBitmaps(mCurPageBitmap, mNextPageBitmap);
}
break;
case MotionEventActions.Move:
if (center)
{
break;
}
int mx = (int)e.GetX();
int my = (int)e.GetY();
cancel = (actiondownX < mScreenWidth / 2 && mx < mTouch.X) || (actiondownX > mScreenWidth / 2 && mx > mTouch.X);
mTouch.X = mx;
mTouch.Y = my;
touch_down = mTouch.X - actiondownX;
this.PostInvalidate();
break;
case MotionEventActions.Up:
case MotionEventActions.Cancel:
long t = JavaSystem.CurrentTimeMillis();
int ux = (int)e.GetX();
int uy = (int)e.GetY();
if (center) // ACTION_DOWN的位置在中间，则不响应滑动事件
{
resetTouchPoint();
if (System.Math.Abs(ux - actiondownX) < 5 && System.Math.Abs(uy - actiondownY) < 5)
{
listener.onCenterClick();
return(false);
}
break;
}
if ((System.Math.Abs(ux - dx) < 10) && (System.Math.Abs(uy - dy) < 10))
{
if ((t - et < 1000)) // 单击
{
startAnimation();
}
else // 长按
{
pagefactory.cancelPage();
restoreAnimation();
}
PostInvalidate();
return(true);
}
if (cancel)
{
pagefactory.cancelPage();
restoreAnimation();
PostInvalidate();
}
else
{
startAnimation();
PostInvalidate();
}
cancel = false;
center = false;
break;
default:
break;
}
return(true);
}