File list (Check if you may need any files):
ios-tip-calculator-master
.........................\LICENSE.md
.........................\README.md
.........................\demo.gif
.........................\tips.xcodeproj
.........................\..............\project.pbxproj
.........................\..............\project.xcworkspace
.........................\..............\...................\contents.xcworkspacedata
.........................\..............\xcuserdata
.........................\..............\..........\beau.xcuserdatad
.........................\..............\..........\................\xcschemes
.........................\..............\..........\................\.........\tips.xcscheme
.........................\..............\..........\................\.........\xcschememanagement.plist
.........................\tips
.........................\....\AppDelegate.swift
.........................\....\Assets.xcassets
.........................\....\...............\AppIcon.appiconset
.........................\....\...............\..................\Contents.json
.........................\....\Base.lproj
.........................\....\..........\LaunchScreen.storyboard
.........................\....\..........\Main.storyboard
.........................\....\Info.plist
.........................\....\ViewController.swift