# Tip Calculator

# Pre-work - *Name of App Here*

**Name of your app** is a tip calculator application for iOS.

Submitted by: **Your Name Here**

Time spent: **X** hours spent in total

## User Stories

The following **required** functionality is complete:

* [ ] User can enter a bill amount, choose a tip percentage, and see the tip and total values.
:::info

view.endEditing(true)

- textfield editing changed

//1. Get bill amount
    let bill = Double(billField.text!) ?? 0
//2. Calculate the tip and total
    let tipPercentages = [0.1, 0.18, 0.2]
    let tip = bill * tipPercentages[tipControl.selectSegmentIndex]
    let total = bill + tip
//3. Update the tip and total labels
    tipLabel.text = String(format: "$%.2f", tip)
    totalLabel.text = String(format: "%.2f", total)

:::

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:

- [ ] List anything else that you can get done to improve the app functionality!

## Video Walkthrough

Here's a walkthrough of implemented user stories:

<img src='http://i.imgur.com/link/to/your/gif/file.gif' title='Video Walkthrough' width='' alt='Video Walkthrough' />

GIF created with [LiceCap](http://www.cockos.com/licecap/).

## Notes

Describe any challenges encountered while building the app.

## 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.