iOS 11 MapKit Annotation Clustering

Transcript

1. iOS 11 MapKit
   Annotation
   Clustering
   ᪴襊妿涢藳 by @denkeni
   

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3. With Clustering1
   Looks cleaner2.
   2 App Store: CafeFreelance - ૡ֢߅珹記
   1 https://github.com/Nandalu/NDLAnnotationClustering
   

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4. With 2 types of
   Clustering
   Overlapping looks not so
   good...
   

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5. iOS 11 Annotation Clustering
   IS OUT!!!
   

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6. clusteringIdentifier3
   An identifier that determines whether the annotation view participates in
   clustering.
   var clusteringIdentifier: String? { get set }
   The default value of this property is nil, which prevents the
   annotation view from being clustered with other annotation
   views. Setting the property to a non nil value it to participate in
   clustering.
   3 Documentation > MapKit > MKAnnotationView > clusteringIdentifier
   

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8. final class AnnotaionView : MKMarkerAnnotationView {
   override init(annotation: MKAnnotation?, reuseIdentifier: String?) {
   super.init(annotation: annotation, reuseIdentifier: reuseIdentifier)
   clusteringIdentifier = "AnnotaionView"
   }
   }
   DID NOT WORK
   (But seems to work now, at latest version)
   

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9. Working code4
   final class AnnotaionView : MKMarkerAnnotationView {
   override var annotation: MKAnnotation? {
   willSet {
   clusteringIdentifier = "AnnotaionView"
   }
   }
   }
   4 What's New in MapKit, WWDC 2017 - Session 237
   

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10. On iOS 11.1
    Crash
    rdar://35381219
    

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12. On iOS 11.2
    Crash
    rdar://36131654
    

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14. Summary:
    — Use MapKit Annotation Clustering on iOS 11.3 or later
    — Question, or help5?
    5 https://github.com/Nandalu/Housing
    

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