Hi, on my textbook I am using to learn Swift, report a method from the Swift library to generate random numbers. They are in the chapter where the protocols are explained. How come it gives me error on the arc4random method? Thank you Powered by…

Hi,   In my application, I am using UIImagePickerController to take the photos, videos, choosing images from gallery and saving them in application document directory. If we launch camera and take picture/videos, app starts terminating without any crash log. For every launch of camera in…

Hey, i want a Player object; grey and orange. (Orange underneath grey) now this Player should fall and React to bars in grey or orange (so obviously when orange Hits a grey bar or other way round: Game Over) Now i wondered How to have…

NSDictionary array used in the application.   But some items are null.   selectedCategory [NSDictionary] 24 values [0] __NSDictionaryM * 3 key/value pairs 0x00000002811ccde1 [1] __NSDictionaryM * 3 key/value pairs 0x00000002811ccde2 [2] NSNull * 0x1ef2e5810 0x00000001ef2e5813 [3] __NSDictionaryM * 3 key/value pairs 0x00000002811ccde4 [4] __NSDictionaryM…