Refer to the following site to set up the certificate and put the following .htaccess as root to complete the process. It's a bit jammed. Read more

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