How can i verify weather a sticker is already added to whats app or not?

[rpsnaik]

We are sending the Sticker pack to what's app but how can i verify weather a particular sticker is already added or not to whats app...

I would like to show a plus icon if its not added and if it is already added then i would like to show a check mark...
Can any one tell the necessary stuff to do for the verification of this thing..

[applicazza]

Currently this is not implemented in this package.

Also, please note, since iOS applications cannot communicate with each other it won't be possible in near future on iOS.

We may add it for Android platform only. Pull requests are more than welcome.