S.J questions

• self.navigationController.tabBarController.selectedIndex not working
• Need assistance regarding Objective-c properties concept
• Can [self.window makeKeyAndVisible]; be called before setting rootviewcontroller
• Trying to understand TranslationInView
• Need assistance setting two buttons of equal width, side by side Autolayout
• How do I set an NSCalendarUnitMinute repeatInterval on iOS 10 UserNotifications?
• NSNotificationCenter removeObserver not working
• How to set repeat frequency in User Notification [duplicate]
• UIMenuController method setTargetRect:inView: not working in UITableView
• What is the difference between transformable and binary data

S.J answers