Yupi questions

Yupi answers

• Should I use a nested fragment for tabs in a fragment?
• Deprecated FacebookSdk method throws RuntimeException
• How to send push notifications FROM an android app with Firebase?
• BottomNavigationView overlapping FrameLayout in CoordinatorLayout
• ConstraintLayout vs "Traditional" Layouts
• FacebookSdk.sdkInitialize (Context) is deprecated
• How do I get the value of setFormatter using numberPicker?
• How to avoid duplicate data in firebase Realtime database