paintedlbird7 / tip-calculator2

iOS Calculator that calculates tip amount according to your total bill - made in Swift

Calculator

Pre-work - Tip Calculator iOS app

iOS mobile app using Swift & Xcode 📲🔢

**Tip Calculator or Calculadora de propinas is a tip calculator application for iOS.

Submitted by: Rosa Perez

Time spent: around 25 hours spent in total

User Stories

The following required functionality is complete:

• [ x] User can enter a bill amount, choose a tip percentage, and see the tip and total values.
• [ x] Settings page to change the default tip percentage.

The following optional features are implemented:

• UI animations
• Remembering the bill amount across app restarts (if <10mins)
• Using locale-specific currency and currency thousands separators.
• Making sure the keyboard is always visible and the bill amount is always the first responder. This way the user doesn't have to tap anywhere to use this app. Just launch the app and start typing.

The following additional features are implemented:

• List anything else that you can get done to improve the app functionality!

Video Walkthrough

Here's a walkthrough of implemented user stories:

GIF created with LiceCap.

Project Analysis

As part of your pre-work submission, please reflect on the app and answer the following questions below:

Question 1: "What are your reactions to the iOS app development platform so far? How would you describe outlets and actions to another developer? Bonus: any idea how they are being implemented under the hood? (It might give you some ideas if you right-click on the Storyboard and click Open As->Source Code")

My reactions to the iOS app development platform so far is that it was so easy to use. I enjoyed working on the app & appreciate the easy to follow video tutorial. This is my first iOS application.

Outlets - adds a connection from the UI file to a label in the code. This enables code to send a message to the UI object.

Actions - example when the user clicks a button, the buttons sends an action message. Its the developers responsibility to write the code to implement the action.

Answer: [Enter your answer here in a paragraph or two].

Question 2: "Swift uses Automatic Reference Counting (ARC), which is not a garbage collector, to manage memory. Can you explain how you can get a strong reference cycle for closures? (There's a section explaining this concept in the link, how would you summarize as simply as possible?)"

Answer: [Enter your answer here in a paragraph or two].

License

Copyright [yyyy] [name of copyright owner]

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

:wq :wq

tip-calculator2's Issues

Project Feedback!

Looks good, this exercise is intended in part to give you an introduction to the general rhythm of this course. The course is entirely project-based with an app being assigned each week and then due the following week. Each project builds on the last to help each engineer learn the practical elements of iOS development and best practices as quickly as possible. We also do a code review for each submitted project once the program begins.

The next step is to continue working on extensions to your tip calculator. With regards to extensions to implement, we are looking for developers with an interest in user experience and product development so be sure to focus on additional functional enhancements and/or improving the user interface of the app.

Check out some past excellent submissions here. You can update your submission at any time here, and it will notify us to review again.

We'll be following up with you again shortly to outline the next steps in the admissions process.