The iPhone completely changed the way people use phones. A phone is no longer just a device for making calls: It’s a whole computer in your pocket, full of features and capabilities.
With it, the App Store transformed the way developers deliver their experience to customers. Developers create apps and submit them to the App Store. Apple reviews them, and then they become available to users. Potential users can browse and find many different kinds of apps, and they trust Apple’s review to guarantee the minimum quality of that app.
However, with all the new capabilities developers can access, privacy has become a real concern to everyone. The conversation about who owns your data and how companies can use it is an issue that triggers a never-ending debate.
Apple has taken a strong position on this: People’s privacy is important and they should decide if they want to share any data with developers.
With that in mind, Apple built new features into iOS and the App Store to make developers more transparent and iOS more private.
In this chapter, you’ll learn about:
iOS’s many privacy features.
Requesting location data from users.
Sending the user’s location in the request to Petfinder’s API to find pets near that location.
How apps adapt UI to account for users’ privacy choices.
The App Store’s Privacy section.
Before you start, take a closer look at why privacy is important.
Why privacy is important
Apple takes people’s privacy very seriously. It understands that people don’t want to share every detail of their lives. People have the right to choose what and how much they share. That’s why Apple has worked hard to make privacy features: to give people a choice in what they want to share.
Apps may want to collect data to drive a specific feature, make a more targeted advertisement or even improve released features.
Apple understands that developers may need access to this data to build better features, but that doesn’t mean people don’t have a choice. Transparency, letting users understand what they are sharing and why, is a critical aspect of privacy.
That’s why Apple has built features that allow developers to ask for authorization to access those capabilities and make users aware of when and why.
iOS privacy features
Many of iOS’s privacy features focus on apps and developers being transparent.
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The privacy view modifier
SwiftUI also has a couple of view modifiers to keep sensitive data private. Lock screens can access a widget without unlocking the iPhone, which is a potential problem if a widget shows sensitive information.
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Location and privacy
A user’s location is very sensitive data. It might reveal to developers where the user lives, walks or commutes. So, users should be aware and in control whenever apps have access to their location.
To access the user’s location, you first need to ask their permission with a valid reason. Remember, it’s the user’s choice to allow access to their private details.
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Building a view to ask permission
Inside AnimalsNearYou/views, create a new SwiftUI View and name it RequestLocationView.swift.
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The new Location button
LocationButton is a new SwiftUI button that brings a couple of improvements to asking permission to access the user’s location. This new button doesn’t require you to add a reason text in the info.plist that explains why you want to access the user’s location data. It already has a default text and alert for asking permission when the user taps the button and doesn’t require you to manually call a method.
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Location accuracy
iOS also has a neat feature for protecting people’s privacy. Most features that request the user’s location don’t need their accurate location. They only require an approximate location to recommend or find places nearby them.
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Dealing with location accuracy means the app has to adapt to some situations. Take Apple Maps for example. When the user allows the app to use a precise location, a blue dot in the map represents their location.
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Updating the tests
Before you finish this feature, you have to update your tests to take into account the new location manager property.
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App Store’s Privacy section
When launching an app in the App Store, Apple makes every developer provide a list of data their app collects. App Store’s Privacy Section ensures developers explain to their users what kind of data they’re collecting.
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Understanding different types of data
Apple categorizes the many types of data an app may collect. It requires you to understand which kind of data you collect and disclose them under the following categories:
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Where to go from here?
In this chapter, you went over what’s privacy and why you should care. Also, you added the functionality to get the current location so users of PetSave can enjoy a more personalized experience.
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