tippr is a tip calculator application for iOS.
Submitted by: Zach Glick
Time spent: 10 hours spent in total
The following required 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.
The following additional features are implemented:
- Changing default tip percentage values
- Choosing between light and dark color themes
- App Icon
- Option to restore all parameters to default.
- Option to calculate fraction of bill/tip/total split between multiple people
- Tipping etiquette guide
Here's a walkthrough of implemented user stories:
GIF created with LiceCap.
This app was a lot of fun to build. The viewcontroller model was difficult to understand at first, but once I got the hang of it I realized how much I could do. Manipulating the NSUserdefaults and connecting actions with objects were probably the two most difficult aspects of the project. Also, I had trouble getting an icon to show up for the app (which is why I didn't bother changing the ugly icon that remains in my final version).
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.