1.  Diffrence Color each of charactersThis code to select different color in one label@IBOutlet weak var label: UILabel! ... // diff color in character let text = "Sample text *" let range = (text as NSString).range(of: "*") let attributedString = NSMutableAttributedString(string:text) attributedString.addAttribute(NSAttributedString.Key.foregroundColor, value: UIColor.red , range: range) label.attributedText = attributedString 2.  Navigation Push after set present navigationIn First...

1. Cannot assign to property: 'parameters' is get-only propertyto fixing that error add "set" after  {get}//Before var parameters: [String: Any]? { get } //After var parameters: [String: Any]? { get set }2.  When keyboard appear textfield scroll upwhen the keyboard covers the display of the textfield when it appears,  here are two ways you can do#First methodIf textfield is...

1. *** Terminating app due to uncaught exception 'NSUnknownKeyException'when you find this crash below it mean in xib file has error outlet, to fixiing that check your .xib and remove the error outlet in outlet collection."' *** Terminating app due to uncaught exception 'NSUnknownKeyException', reason: '[<Module.yourView 0x7f929006e6f0> setValue:forUndefinedKey:]: this class is not key value coding-compliant for the key...