Not support set badge count in text format

[itman85]

I currently cannot set badge count in text format. In case number is large such as 150,200... i want to display badge number as "99+". But there is method set badge with integer only.

[leonardo2204]

The problem with this approach is that some logic is performed behind the badge count (like hiding or showing if greater or less than 0), so I'm not sure how the app should behave when having String values.
IMO, I'd agree implementing something like TextView's ellipse (using a threshold), like, if count > x show '+' sign.
What do you think @itman85 and @roughike ?
I'd gladly drop a PR !

[itman85]

That's awesome if support a threshold to show plus sign and setting text size

[leonardo2204]

@itman85 PR #859 created.
Now we wait :)