Swift 4.1+ Xcode 9+

The Application Implement a iOS app that contains three text fields (Red, Green Blue) with labels, one button (with label Color) and a UIView. The UIView we will call the color view. The color view starts with a black background. The user is to enter values 0 through 100 in the text fields. When one presses the button the background color of the color view is changed us- ing the values that the user entered in the text fields. Sample screen shot below. Note that the keyboard is not shown after pressing the button. The application should store the values in the text fields. So when the user "kills" the applica- tion and then restarts the app the values in the test fields are restored to the values they had before the app was killed and the color view is the same color is was before the app was killed. Killing the app is different than just placing the app in the background. The Application Implement a iOS app that contains three text fields (Red, Green Blue) with labels, one button (with label Color) and a UIView. The UIView we will call the color view. The color view starts with a black background. The user is to enter values 0 through 100 in the text fields. When one presses the button the background color of the color view is changed us- ing the values that the user entered in the text fields. Sample screen shot below. Note that the keyboard is not shown after pressing the button. The application should store the values in the text fields. So when the user "kills" the applica- tion and then restarts the app the values in the test fields are restored to the values they had before the app was killed and the color view is the same color is was before the app was killed. Killing the app is different than just placing the app in the