CLLocationButton
A button that grants one-time location authorization.
Declaration
class CLLocationButtonOverview
CLLocationButton simplifies requesting one-time authorization to access location data. Add this button to your user interface in situations when users may want to grant temporary access to their location data each time they use a particular feature of your app.
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The first time a user taps this button, Core Location asks the user to confirm that they’re comfortable using this UI element when they want to grant temporary access to their location data. If the user agrees, the app receives temporary CLAuthorizationStatus.authorizedWhenInUse authorization, like when the user chooses Allow Once in response to your app’s standard location authorization request. This temporary authorization expires when your app is no longer in use.
After the user agrees to using CLLocationButton, the button becomes approved to request future authorizations without displaying an additional alert to the user. The next time the user taps it, this button simply grants one-time authorization without requiring confirmation.
After you receive this temporary authorization, fetch the user’s location using the Core Location API and perform any app-specific tasks related to that location data. Connect the button to initiate the tasks you want to perform after getting authorization by adding a target and action to the button. Keep in mind that this action activates every time the user taps this button, regardless of whether the app already has location authorization.
Create a CLLocationButton in Interface Builder or in code, like this:
let locationButton = CLLocationButton()
locationButton.icon = .arrowFilled
locationButton.label = .currentLocation
locationButton.cornerRadius = 25.0
locationButton.addTarget(self, action: #selector(userPressedLocationButton), for: .touchUpInside)Configure the button’s content by specifying its icon and label styles. Customize its appearance using the cornerRadius and fontSize properties, or the standard view appearance properties backgroundColor and tintColor. For design guidance, see Human Interface Guidelines.