This is the code to add UINavigationController to UITabBarController. Implemented by including UINavigationBarController in UITabBarController. The implementation of UITabBarController is here. Implementing NavigationController

This is a sample implementation of UITabBarController, which is used to switch views. The icon for UITabBarController is a 30×30 transparent png.

Starting with Xcode9 (iOS 11), you can now manage your colors with Assets. I made a UIColor Extension and registered a color and made a function. Read more

My friends often tell me that AppleDeveloper registration fees are too high, but there are many good things in spite of the high fees. One of them is Technical Support Incident (TSI), where Apple engineers can answer questions and consult with you at the code level about bugs or problems that cannot be fixed. Read more

This is a sample code to make the background of UIView gradient. Reference 【Swift x iOSアプ Read more

This is a sample code to create and paste a custom button class that extends UIButton. By separating the look and feel of the ViewController into separate files, you can make the ViewController look neat. Read more

This is a sample code to delete a Cell by editing TableView. You can add an edit button to the NavigationBar and remove the cell by pressing that button. Read more

This is a sample code to delete a Cell by editing TableView. By adding the following functions, you can add the ability to delete a cell by sliding it horizontally. Read more

I tried to find out how to divide the Japanese Yen by 3 digits, as in the Japanese Yen display. It's like 123,456,789 yen or Read more

Sample code to get the current date, day of the week, and current time in Swift4.1. You can get it as a string of the Read more