AI-generated Key Takeaways
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Photostores metadata for a single photo associated with a place, including attributions, author information, and maximum size. -
It conforms to
CustomStringConvertible,Equatable, andHashablefor describing, comparing, and uniquely identifying photos. -
The
attributionsproperty provides an attributed string detailing data provider credits, which should be displayed to users. -
Photos can be instantiated for testing purposes using initializers that accept size, attributions, and author details.
Photo
struct Photoextension Photo : Copyable, CustomStringConvertible, Equatable, Escapable, Hashable, SendableThe metadata corresponding to a single photo associated with a place.
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Returns a Boolean value indicating whether two values are equal.
Equality is the inverse of inequality. For any values
aandb,a == bimplies thata != bisfalse.Declaration
Swift
static func == (lhs: Photo, rhs: Photo) -> BoolParameters
lhsA value to compare.
rhsAnother value to compare.
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The data provider attribution string for this photo.
These are provided as a NSAttributedString, which may contain hyperlinks to the website of each provider.
In general, these must be shown to the user if data from this
PlacePhotoMetadatais shown, as described in the Places SDK Terms of Service.Declaration
Swift
var attributions: AttributedString? { get } -
Declaration
Swift
var authorAttributions: [AuthorAttribution] { get } -
A textual representation of this instance.
Calling this property directly is discouraged. Instead, convert an instance of any type to a string by using the
String(describing:)initializer. This initializer works with any type, and uses the customdescriptionproperty for types that conform toCustomStringConvertible:struct Point: CustomStringConvertible { let x: Int, y: Int var description: String { return "(\(x), \(y))" } } let p = Point(x: 21, y: 30) let s = String(describing: p) print(s) // Prints "(21, 30)"The conversion of
pto a string in the assignment tosuses thePointtype’sdescriptionproperty.Declaration
Swift
var description: String { get } -
Hashes the essential components of this value by feeding them into the given hasher.
Implement this method to conform to the
Hashableprotocol. The components used for hashing must be the same as the components compared in your type’s==operator implementation. Callhasher.combine(_:)with each of these components.Important
In your implementation of
hash(into:), don’t callfinalize()on thehasherinstance provided, or replace it with a different instance. Doing so may become a compile-time error in the future.Declaration
Swift
func hash(into hasher: inout Hasher) -
The hash value.
Hash values are not guaranteed to be equal across different executions of your program. Do not save hash values to use during a future execution.
Important
hashValueis deprecated as aHashablerequirement. To conform toHashable, implement thehash(into:)requirement instead. The compiler provides an implementation forhashValuefor you.Declaration
Swift
var hashValue: Int { get } -
Instantiates a
Photowith the specified information.Photos can be gotten from aPlaceobject. This initializer can be used for testing.Declaration
Swift
init(maxSize: CGSize, attributions: AttributedString? = nil, authorAttributions: [AuthorAttribution] = [])Parameters
maxSizeThe maximum pixel size in which this photo is available.
attributionsThe data provider attribution string for this photo.
authorAttributionsThe optional author attributions for this photo.
Return Value
A
Photocontaining the specified information. -
Instantiates a
Photowith the specified information.Photos can be gotten from aPlaceobject. This initializer can be used for testing.Declaration
Swift
init(maxSize: CGSize, attributions: NSAttributedString?, authorAttributions: [AuthorAttribution] = [])Parameters
maxSizeThe maximum pixel size in which this photo is available.
attributionsThe data provider attribution string for this photo.
authorAttributionsThe optional author attributions for this photo.
Return Value
A
Photocontaining the specified information. -
The data provider attribution string for this photo.
These are provided as a NSAttributedString, which may contain hyperlinks to the website of each provider.
In general, these must be shown to the user if data from this
PlacePhotoMetadatais shown, as described in the Places SDK Terms of Service.Declaration
Swift
var legacyAttributions: NSAttributedString? { get } -
The maximum pixel size in which this photo is available.
Declaration
Swift
var maxSize: CGSize { get }