Marten questions

Marten answers

• Parcelable works without correct implementation
• ndb to_dict method does not include object's key
• FATAL EXCEPTION: ThumbnailManager-1 while sharing images to Intent
• rrule for repeating monthly on the 31st or closest day
• Invert paint color based on background
• SSL Certificate Pinning not working anymore on Android 9
• Google's IAB API3 getSkuDetails() method returns failed 5: Developer Error
• Changing contact's image to a large photo via PHOTO_FILE_ID in Android
• Android Contacts not showing my custom account_type
• No dtend as rrule parameters?