Issue when back page

[VAdaihiep]

Thanks for your libs, but I have a problem.
In your demo at https://github.com/openaphid/android-flip/tree/master/FlipView/Demo/APK/Aphid-FlipView-Demo.apk -> Flip Text Views.
I slide down FAST to view NEXT page, it work fine: 0 -> 1 -> 2 -> 3 -> 4
But problem when I slide up FAST to view PREW page, it work not perfectly: 4 -> 2 -> 0 instead of 4->3->2->1->0
This problem occurs with all activity in this Demo.
So please help me to make it work fine like next page.
Thanks in advance!

P.s: I feel when back page: the animation has a little delay (lag) (next page does not). Could someone tell me why?

[VAdaihiep]

UPDATE: I think this bug happen because when backward page is slightly slower, I post this issue #2.
@openaphid Please help me, i need to fix it urgently :(

[openaphid]

@VAdaihiep I fixed #16 which may cause incorrect order during flipping.

Please try the demo APK in develop branch: https://github.com/openaphid/android-flip/blob/develop/FlipView/Demo/APK/Aphid-FlipView-Demo.apk