Sorry for reposting this thread ( my last post was incomplete so I deleted that post )
So ,
APP RELATED INFO :-
» App name :- FreeDemy
» Application :- Free Udemy Courses Notifier
» Description :- FreeDemy is app which notifies users daily free Udemy courses ( coupon code applied ) which are available for limited time.
ABOUT APP BUILDING OR USED EXTENSIONS ( AND THANKS TO EXTENSION DEVELOPERS 
)
- FusionTable
- CardView :- [Free] Material Cards + Camera Viewer (SPONSORED!) - ClassicExtensions - Community
- [ Template ] :- Material style bottom menu :- https://community.thunkable.com/t/template-material-style-bottom-menu-templates-free/20001
- OneSignal - for pushing notification :- whenever I push notification with image then app force stops on Oreo users.
- Material Icons
- Google sans font
- InfiniteProgressBar :- [FREE] Extension InfinityProgressBars (Version 2) - ClassicExtensions - Community
- Asynchronous Image Loader :-
Asynchronous Image Loader - AsyncImageLoader by ColinTree - ClassicExtensions - Community - Dialog Extension
Play store app link :-
https://play.google.com/store/apps/details?id=com.binarybite.freedemy
Suggestions accepted 
And don’t worry about posts , I’ll start updating posts by tomorrow
Known issues :- Because I used CardView Extension after some cards ( ~25 cards, app starts lagging )
Any solution for that ?
One of my friend suggested to load only 10 cards at a time…
By the way, huge thanks to @Surendra_Parihar , @The_Developer_2.0 for guidance ! And also @hitesh
This is my 1st app and I was very excited while building process ( this learns us how to think logical, various ways of performing actions etc 
) okk,
End…
great