IOS and Androed onCurrentPageChanged (Number pagenumber) Not fireing about flexpaper HOT 2 CLOSED

fixed in our upcoming 2.2.4 build. Thanks for reporting! 

Hello, 
On iOS, this fixes the problem of not firing event but introduced a new small 
bug:

$(window).on('onCurrentPageChanged', function (e, page_number) {
    console.log(page_number);
});
For example: the PDF has 2 pages, if you click previous button on page 1, you 
can't see any new page but the console.log above will log page_number is 0. 
Similarly, if you click next button on page 2, it will log 3. 
Expected result: page_number should not go out of range 1-2.