Toast Messages Overlap Each Other

[Erudition]

I'm submitting a ... (check one with "x")
[x ] bug report
[ ] feature request

Current behavior:
When a toast message is displayed, it stays on screen for a period of time and then goes away. If a second toast message is produced before it disappears, it will overlap the first, even if there was not enough time to read the first toast (or even notice it appear).

Expected behavior:
The subsequent toast messages would either a) stack up vertically, as in other usages or b) queue up to be displayed one-by-one, like android toasts

Steps to reproduce:

1. Send a Toast.
2. Immediately send another Toast.