menu打开时快速滑动listview 回出现复用的itemview 异常情况

应该是与SwipeMenuLayout中的状态标识有关

```
public void smoothCloseMenu() {
state = STATE_CLOSE;
mBaseX = -mContentView.getLeft();
mCloseScroller.startScroll(0, 0, mBaseX, 0, 350);
postInvalidate();
}

public void smoothOpenMenu() {
state = STATE_OPEN;
mOpenScroller.startScroll(-mContentView.getLeft(), 0,
mMenuView.getWidth(), 0, 350);
postInvalidate();
}
public void closeMenu() {
if (mCloseScroller.computeScrollOffset()) {
mCloseScroller.abortAnimation();
}
if (state == STATE_OPEN || mContentView.getLeft()!=0) {
state = STATE_CLOSE;
swipe(0);
}
}

```

动画结束前就改变了状态，造成在快速滑动时动画未结束view被复用。
现在简单的在

在closeMenu中加上了判断state == STATE_OPEN || mContentView.getLeft()!=0

Start in SwipeMenuLayout with smoothCloseMenu(), smoothOpenMenu(), and closeMenu(), then reproduce rapid ListView scrolling while a menu animation is running. Check how state changes interact with recycled item views; done means the reused view remains consistent when scrolling before the close or open animation finishes.

Written by the indexing model from the issue text.