Modal/Dialog opening direction

[iosiflivadaru]

This function solves the problem (这个功能解决的问题)

A more common way of a modal/dialog popup. A context would be that sometimes I have a button on the edge of the screen and it looks like the modal is coming from that button just to reach the top of my screen. It would be nice to have it fade in the middle of the screen or fade in from the top to the middle, and so on.

Expected API (期望的 API)

I haven't thought about how to make this work, I think is a better experience than the way it is now. Maybe we can make an easy API to change the direction by just one prop.