Tipster is a tip calculator application for iOS.
Submitted by: Sophia Feng
Time spent: 12 hours
The following required functionality is complete:
- User can enter a bill amount, choose a tip percentage, and see the tip and total values.
- 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:
- Custom segment control with animations
- Split bill information
- App color changes based on tip percent selection
Here's a walkthrough of implemented user stories:
Here's a walkthrough demoing <10 min state restoration. Since this was done in simulator, I first background the app and then killed it in Xcode's Stop button, then open the app again.
GIF created with LiceCap.
I spent the most time on state restoration. I took some time to understand methods in the AppDelegate and the order at which they were called. I had read about how to enabled state restoration but ran into a bug where even though I added restoration identifiers the encode/decode methods weren't being called.
Copyright 2016 Sophia Feng
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.
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