Tippy is a tip calculator application for iOS.
Submitted by: Ryan Nathan Luu
Time spent: 5 hours spent in total
The following functionality is complete:
- User can enter a bill amount, choose a tip percentage, and see the tip and total values.
The following optional features are implemented:
- Settings page to change the default tip percentage.
- 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.
Here's a walkthrough of implemented user stories:
GIF created with Recordit (http://www.recordit.co).
During the process of building the application, I ran into three main difficulties related to Xcode, designing a user interface, and using autolayout. First off, I was unfamiliar with Xcode and could not find the object library mentioned in the instructions. After watching the video, I realized that pressing CMD + Shift + L gives the shortcut for the object library. Because I am not particularly skilled at UI development, I found it difficult to design a clean and nice looking interface. Last, I ran into issues with autolayout constraints because I could not initially find the constraint error messages. After some digging, I realized how to address over and under constrained elements.
Copyright 2019 Ryan Nathan Luu
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.