Enhancement

[fxmeister]

Suggestion to add drag-dismiss functionality to the X axis, in addition to the Y.

[klinker24]

This probably isn't something I will personally add, I don't really like that style and it doesn't really fit with what the library is designed for. I would be willing to look at any pull requests though, if this is something that others really would like.

It uses the up and down direction because the activity contains scrollable content, which scrolls vertically. The point of this library is to work itself in to that scrollable content. That way, when you are at the end of the content, you can dismiss it.