Mastering Drag and Drop
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- Laurel Sophia Fletcher
- 6 years ago
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1 Session App Frameworks #WWDC17 Mastering Drag and Drop 213 Tom Adriaenssen, UIKit Wenson Hsieh, WebKit Robb Böhnke, UIKit 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple.
2 NEW
3 Drag and Drop API Roadmap Drag Interaction Preview Drop Interaction Drag Interaction Delegate Drag Session Drag Item Drop Session Drop Interaction Delegate Item Provider
4 Drag and Drop API Roadmap Drag Interaction Preview Drop Interaction Drag Interaction Delegate Drag Session Drag Item Drop Session Drop Interaction Delegate Item Provider Drag and Drop with Collection and Table View Hall 2 Thursday 9:00AM
5 Drag and Drop API Roadmap Drag Interaction Preview Drop Interaction Drag Interaction Delegate Drag Session Drag Item Drop Session Drop Interaction Delegate Item Provider Data Delivery with Drag and Drop Hall 2 Thursday 10:00AM
6 Drag and Drop API Roadmap Drag Interaction Preview Drop Interaction Drag Interaction Delegate Drag Session Drag Item Drop Session Drop Interaction Delegate Item Provider
7 Drag and Drop API Roadmap Drag Interaction Preview Drop Interaction Drag Interaction Delegate Drag Session Drag Item Drop Session Drop Interaction Delegate Item Provider
8 Advanced Drag Interactions Robb Böhnke, UIKit
9 UIDragInteraction Can be added to any view Installs gestures Delegate does the work
10 UIDragInteractionDelegate Returns UIDragItems associated with the drag May provide a preview during the lift or for cancelling May can animate alongside the lift May get notified of drag session lifecycle
11 UIDragInteractionDelegate Returns UIDragItems associated with the drag May provide a preview during the lift or for cancelling May can animate alongside the lift May get notified of drag session lifecycle Introducing Drag and Drop Hall 3 Tuesday 11:20AM
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13
14 // UIDragInteractionDelegate
15 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] {
16 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { let itemprovider = NSItemProvider(message)
17 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider)
18 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider) dragitem.localobject = message
19 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider) dragitem.localobject = message return [ dragitem ] }DontDeleteThis
20 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforaddingto session: UIDragSession, withtouchat point: CGPoint) -> [UIDragItem] { let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider) dragitem.localobject = message return [ dragitem ] }DontDeleteThis
21 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforaddingto session: UIDragSession, withtouchat point: CGPoint) -> [UIDragItem] { let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider) dragitem.localobject = message return [ dragitem ] }DontDeleteThis
22 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforaddingto session: UIDragSession, withtouchat point: CGPoint) -> [UIDragItem] { for item in session.items { guard item.itemprovider.hasitemconformingtotypeidentifier("private.example.mail") else { return [] } } let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider) dragitem.localobject = message return [ dragitem ] }DontDeleteThis
23 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforaddingto session: UIDragSession, withtouchat point: CGPoint) -> [UIDragItem] { for item in session.items { guard item.itemprovider.hasitemconformingtotypeidentifier("private.example.mail") else { return [] } guard item.localobject!= message { return [] } } let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider) dragitem.localobject = message return [ dragitem ] }DontDeleteThis
24
25
26 // UIDragInteractionDelegate
27 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] {
28 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { return mailthread.messages
29 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { return mailthread.messages.sorted { a, b in } return a.sentdate.timeintervalsince1970 > b.sentdate.timeintervalsince1970
30 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { return mailthread.messages.sorted { a, b in } return a.sentdate.timeintervalsince1970 > b.sentdate.timeintervalsince1970.map { message -> UIDragItem in let itemprovider = NSItemProvider(message) let dragitem = UIDragItem(itemProvider: itemprovider) } } dragitem.localobject = message return dragitem
31 // UIDragInteractionDelegate
32 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, previewforlifting item: UIDragItem, session: UIDragSession) -> UITargetedDragPreview?
33 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, previewforlifting item: UIDragItem, session: UIDragSession) -> UITargetedDragPreview? guard let message = item.localobject as? Message else { } return nil
34 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, previewforlifting item: UIDragItem, session: UIDragSession) -> UITargetedDragPreview? guard let message = item.localobject as? Message else { } return nil } return UITargetedDragPreview(view: getmessageview(for: message))
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36
37 // UIDragInteractionDelegate
38 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { let itemprovider = NSItemProvider(file)
39 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { let itemprovider = NSItemProvider(file) // Available in the next seed itemprovider.preferredpresentationsize = CGSize(width: 400, height: 300)
40 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, itemsforbeginning session: UIDragSession) -> [UIDragItem] { let itemprovider = NSItemProvider(file) // Available in the next seed itemprovider.preferredpresentationsize = CGSize(width: 400, height: 300) } let dragitem = UIDragItem(itemProvider: itemprovider) return [ dragitem ]
41 Demo Wenson Hsieh, WebKit
42 Customizing Drag Visuals Robb Böhnke, UIKit
43 Animating Alongside the Lift The view being lifted is live Lift is interactive
44 // UIDragInteractionDelegate
45 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, willanimateliftwith animator: UIDragAnimating, session: UIDragSession) {
46 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, willanimateliftwith animator: UIDragAnimating, session: UIDragSession) { session.items.lazy
47 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, willanimateliftwith animator: UIDragAnimating, session: UIDragSession) { session.items.lazy.flatmap { $0.localObject as? Message }
48 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, willanimateliftwith animator: UIDragAnimating, session: UIDragSession) { session.items.lazy.flatmap { $0.localObject as? Message }.map(getmessageview)
49 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, willanimateliftwith animator: UIDragAnimating, session: UIDragSession) { session.items.lazy.flatmap { $0.localObject as? Message }.map(getmessageview).foreach { messageview in
50 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, willanimateliftwith animator: UIDragAnimating, session: UIDragSession) { session.items.lazy.flatmap { $0.localObject as? Message }.map(getmessageview).foreach { messageview in animator.addanimations { } messageview.overlay.alpha = 0
51 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, willanimateliftwith animator: UIDragAnimating, session: UIDragSession) { session.items.lazy.flatmap { $0.localObject as? Message }.map(getmessageview).foreach { messageview in animator.addanimations { } messageview.overlay.alpha = 0 animator.addcompletion { position in messageview.overlay.alpha = 1 } } }
52 UITargetedDragPreview
53 UITargetedDragPreview View
54 UITargetedDragPreview View Parameters
55 UITargetedDragPreview View Parameters Target
56 UITargetedDragPreview View Parameters Target
57 UIDragPreviewParameters Can color the background behind the view Knows which portion of the preview is visible
58 UIDragPreviewParameters
59 UIDragPreviewParameters
60 UIDragPreviewParameters
61 UIDragPreviewParameters
62 UIDragPreviewParameters (592, 286)
63 UIDragPreviewParameters (592, 286)
64 UIDragPreviewParameters
65 UIDragPreviewParameters
66 UIDragPreviewParameters
67 UIDragPreviewParameters (-50, -50)
68 UIDragPreviewParameters
69 UIDragPreviewParameters Can color the background behind the view Knows which portion of the preview is visible Special style for text
70 UITargetedDragPreview View Parameters Target
71 UIDragPreviewTarget Knows where the preview is going to or coming from Positions the preview inside its container May apply a transform during set down
72 Positioning with a Target
73 Positioning with a Target
74 Positioning with a Target
75 Positioning with a Target
76 Positioning with a Target
77 Positioning with a Target
78 Positioning with a Target
79 Positioning with a Target
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81
82 UIDragPreview Used to update previews while in flight Does not have a target
83 // UIDragInteractionDelegate
84 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) {
85 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) { guard!listview.bounds.contains(session.location(in: listview)) else { return }
86 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) { guard!listview.bounds.contains(session.location(in: listview)) else { return } for item in session.items where item.localobject is Message {
87 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) { guard!listview.bounds.contains(session.location(in: listview)) else { return } for item in session.items where item.localobject is Message { guard!updateditems.contains(item) else { continue }
88 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) { guard!listview.bounds.contains(session.location(in: listview)) else { return } for item in session.items where item.localobject is Message { guard!updateditems.contains(item) else { continue } item.previewprovider = {
89 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) { guard!listview.bounds.contains(session.location(in: listview)) else { return } for item in session.items where item.localobject is Message { guard!updateditems.contains(item) else { continue } item.previewprovider = { let imageview = UIImageView(image: UIImage(named: "envelope"))
90 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) { guard!listview.bounds.contains(session.location(in: listview)) else { return } for item in session.items where item.localobject is Message { guard!updateditems.contains(item) else { continue } item.previewprovider = { let imageview = UIImageView(image: UIImage(named: "envelope")) } return UIDragPreview(view: imageview)
91 // UIDragInteractionDelegate func draginteraction(_ interaction: UIDragInteraction, sessiondidmove session: UIDragSession) { guard!listview.bounds.contains(session.location(in: listview)) else { return } for item in session.items where item.localobject is Message { guard!updateditems.contains(item) else { continue } item.previewprovider = { let imageview = UIImageView(image: UIImage(named: "envelope")) } return UIDragPreview(view: imageview) updateditems.add(item) } }
92 Demo Wenson Hsieh, WebKit
93 Deep Dive into a Drop Tom Adriaenssen, UIKit
94 Deep Dive into a Drop Drop sessions Performing a drop
95 Drop Sessions
96 Drop Sessions Your access to all things drop Drag location Items Configuration Drag session (when local)
97 Drop Sessions
98 Drop Sessions One interaction + delegate = one active drop session
99 Drop Sessions One interaction + delegate = one active drop session Supporting more sessions? Add more interactions Set interaction.allowssimultaneousdropsessions = true
100 Drop Sessions Lifetime
101 Drop Sessions Lifetime
102 Drop Sessions Lifetime can handle? optional func dropinteraction(_ interaction: UIDropInteraction, canhandle session: UIDropSession) -> Bool
103 Drop Sessions Lifetime can handle? optional func dropinteraction(_ interaction: UIDropInteraction, canhandle session: UIDropSession) -> Bool
104 Drop Sessions Lifetime can handle? enter optional func dropinteraction(_ interaction: UIDropInteraction, sessiondidenter session: UIDropSession)
105 Drop Sessions Lifetime can handle? enter update optional func dropinteraction(_ interaction: UIDropInteraction, sessiondidupdate session: UIDropSession) -> UIDropProposal
106 Drop Sessions Lifetime can handle? enter update drop
107 Drop Sessions Lifetime can handle? enter update drop end optional func dropinteraction(_ interaction: UIDropInteraction, sessiondidend session: UIDropSession)
108 Drop Sessions Lifetime can handle? enter update drop end
109 Drop Sessions Lifetime can handle? enter update drop end
110 Drop Sessions Lifetime can handle? enter update drop exit end optional func dropinteraction(_ interaction: UIDropInteraction, sessiondidexit session: UIDropSession)
111 Drop Sessions Lifetime can handle? enter update drop exit end optional func dropinteraction(_ interaction: UIDropInteraction, sessiondidend session: UIDropSession)
112 Drop Sessions Lifetime can handle? enter update drop exit end
113 Drop Sessions Lifetime can handle? enter update drop exit end
114 Drop Sessions Lifetime can handle? enter update drop exit end
115 Drop Sessions Lifetime can handle? enter update drop exit end
116 Drop Sessions Lifetime can handle? enter update drop exit end
117 Drop Sessions Lifetime can handle? enter update drop exit end
118 Drop Sessions Lifetime drop update proposal
119 Drop Sessions Lifetime update drop proposal
120 Drop Proposals class UIDropProposal : NSObject, NSCopying { init(operation: UIDropOperation) var operation: UIDropOperation { get } var isprecise: Bool var prefersfullsizepreview: Bool }
121 Drop Proposals Precision mode class UIDropProposal : NSObject, NSCopying { init(operation: UIDropOperation) var operation: UIDropOperation { get } var isprecise: Bool var prefersfullsizepreview: Bool }
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123
124 Drop Proposals Preview scaling class UIDropProposal : NSObject, NSCopying { init(operation: UIDropOperation) var operation: UIDropOperation { get } var isprecise: Bool var prefersfullsizepreview: Bool }
125 Drop Proposals Preview scaling class UIDropProposal : NSObject, NSCopying { init(operation: UIDropOperation) var operation: UIDropOperation { get } var isprecise: Bool var prefersfullsizepreview: Bool }
126 Drop Proposals Preview scaling class UIDropProposal : NSObject, NSCopying { init(operation: UIDropOperation) var operation: UIDropOperation { get } var isprecise: Bool var prefersfullsizepreview: Bool }
127
128
129 Drop Proposals Preview scaling System prefers to scale down all previews Prefer full-size previews when it makes sense
130 Drop Proposals Preview scaling System prefers to scale down all previews Prefer full-size previews when it makes sense optional func draginteraction(_ interaction: UIDragInteraction, prefersfullsizepreviewsfor session: UIDragSession) -> Bool class UIDropProposal : NSObject, NSCopying { var prefersfullsizepreview: Bool }
131 Drop Proposals Preview scaling
132 Drop Proposals Preview scaling Flocks always scale A single preview will always scale once it leaves the source app Once scaled down, a preview never scales back up
133 Performing a Drop time
134 Performing a Drop time performdrop optional func dropinteraction(_ interaction: UIDropInteraction, performdrop session: UIDropSession)
135 Performing a Drop time performdrop loadobject() Only time when you can request data Always asynchronous loadobject() Don t block! optional func dropinteraction(_ interaction: UIDropInteraction, performdrop session: UIDropSession)
136 Performing a Drop performdrop animate time loadobject() loadobject()
137 57 Performing a Drop performdrop animate concludedrop time loadobject() loadobject()
138 57 Performing a Drop performdrop animate concludedrop time loadobject() loadobject() optional func dropinteraction(_ interaction: UIDropInteraction, concludedrop session: UIDropSession)
139 58 Performing a Drop performdrop animate concludedrop time loadobject() loadobject()
140 Performing a Drop Loading homogeneous data
141 Performing a Drop Loading homogeneous data Use session s loadobjects(ofclass:completion:) Load all objects conforming to a class Resulting array is sorted same as session s items array Completion block will be called on main queue
142 Performing a Drop Loading heterogeneous data
143 Performing a Drop Loading heterogeneous data Iterate over session items and load each item individually loadobject(), loaddatarepresentation(), loadfilerepresentation(), Fine-grained control Load multiple representations Completion block will be called on background queue
144 Performing a Drop Loading heterogeneous data Iterate over session items and load each item individually loadobject(), loaddatarepresentation(), loadfilerepresentation(), Fine-grained control Load multiple representations Completion block will be called on background queue Data Delivery with Drag and Drop Hall 2 Thursday 10:00AM
145 Demo Wenson Hsieh, WebKit
146 Drop Previews and Animations Tom Adriaenssen, UIKit
147 63 Drop Previews time performdrop animate concludedrop loadobject() loadobject()
148 64 Drop Previews time performdrop animate concludedrop loadobject() loadobject()
149 65 Drop Previews performdrop previewfordropping concludedrop time loadobject() loadobject()
150 65 Drop Previews performdrop previewfordropping concludedrop time loadobject() loadobject() optional func dropinteraction(_ interaction: UIDropInteraction, previewfordropping item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview?) -> UITargetedDragPreview?
151 65 Drop Previews performdrop previewfordropping concludedrop time loadobject() preview loadobject() preview optional func dropinteraction(_ interaction: UIDropInteraction, previewfordropping item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview?) -> UITargetedDragPreview?
152 66 Drop Previews performdrop previewfordropping willanimatedrop concludedrop time loadobject() preview loadobject() preview
153 66 Drop Previews performdrop previewfordropping willanimatedrop concludedrop time loadobject() preview loadobject() preview optional func dropinteraction(_ interaction: UIDropInteraction, item: UIDragItem, willanimatedropwith animator: UIDragAnimating)
154 Drop Previews time performdrop previewfordropping willanimatedrop concludedrop loadobject() loadobject() preview preview
155 Drop Previews time performdrop previewfordropping willanimatedrop concludedrop loadobject() loadobject() preview preview optional func dropinteraction(_ interaction: UIDropInteraction, concludedrop session: UIDropSession)
156 Drop Previews time performdrop previewfordropping willanimatedrop concludedrop loadobject() loadobject() preview preview
157 Drop Previews and Cancel Previews optional func dropinteraction(_ interaction: UIDropInteraction, previewfordropping item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview?) -> UITargetedDragPreview? optional func draginteraction(_ interaction: UIDragInteraction, previewforcancelling item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview) -> UITargetedDragPreview?
158 Drop Previews and Cancel Previews optional func dropinteraction(_ interaction: UIDropInteraction, previewfordropping item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview?) -> UITargetedDragPreview? optional func draginteraction(_ interaction: UIDragInteraction, previewforcancelling item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview) -> UITargetedDragPreview?
159 Drop Previews and Cancel Previews optional func dropinteraction(_ interaction: UIDropInteraction, previewfordropping item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview?) -> UITargetedDragPreview? optional func draginteraction(_ interaction: UIDragInteraction, previewforcancelling item: UIDragItem, withdefault defaultpreview: UITargetedDragPreview) -> UITargetedDragPreview? Same approach Different occasions
160 Drop and Cancel Previews Animating alongside optional func dropinteraction(_ interaction: UIDropInteraction, item: UIDragItem, willanimatedropwith animator: UIDragAnimating) optional func draginteraction(_ interaction: UIDragInteraction, item: UIDragItem, willanimatecancelwith animator: UIDragAnimating)
161 Drop and Cancel Previews Animating alongside optional func dropinteraction(_ interaction: UIDropInteraction, item: UIDragItem, willanimatedropwith animator: UIDragAnimating) optional func draginteraction(_ interaction: UIDragInteraction, item: UIDragItem, willanimatecancelwith animator: UIDragAnimating) Called for each item in the flock Similar in API to UIViewPropertyAnimator
162 Drop and Cancel Previews Animating alongside optional func dropinteraction(_ interaction: UIDropInteraction, item: UIDragItem, willanimatedropwith animator: UIDragAnimating) optional func draginteraction(_ interaction: UIDragInteraction, item: UIDragItem, willanimatecancelwith animator: UIDragAnimating) Called for each item in the flock Similar in API to UIViewPropertyAnimator
163 Drop and Cancel Previews
164 Drop and Cancel Previews Return defaultpreview
165 Drop and Cancel Previews Return defaultpreview Return nil
166 Drop and Cancel Previews Return defaultpreview Return nil Retarget the defaultpreview
167 Drop and Cancel Previews Return defaultpreview Return nil Retarget the defaultpreview Make your own preview
168 Drop and Cancel Previews Some limits
169 Drop and Cancel Previews Some limits Fewer items Preview for each item Alongside animations for each item
170 Drop and Cancel Previews Some limits Fewer items Preview for each item Alongside animations for each item More items Default previews for all One alongside animation
171 Demo Wenson Hsieh, WebKit
172 Dealing with Slow Data Delivery Tom Adriaenssen, UIKit
173 Dealing with Slow Data Delivery Data loads are always asynchronous Disconnected timelines Data loading Animating drop previews
174 76 Dealing with Slow Data Delivery performdrop previewfordropping willanimatedrop concludedrop time loadobject() preview loadobject() preview
175
176
177 Dealing with Slow Data Delivery Handling cancelling Load completion blocks Data will be nil Error will be set
178 Dealing with Slow Data Delivery Handling cancelling Session and items provide progress reporting Session is ProgressReporting Item provider load methods return Progress Use Progress.cancellationHandler
179 Dealing with Slow Data Delivery Handling cancelling Session and items provide progress reporting Session is ProgressReporting session ProgressReporting Item provider load methods return Progress Use Progress.cancellationHandler
180 Dealing with Slow Data Delivery Handling cancelling Session and items provide progress reporting Session is ProgressReporting Item provider load methods return Progress Use Progress.cancellationHandler session ProgressReporting loadobject() Progress loaddatarepresentation() Progress loadfilerepresentation() Progress
181 Dealing with Slow Data Delivery Showing custom progress session ProgressReporting loadobject() Progress loaddatarepresentation() Progress loadfilerepresentation() Progress
182 Dealing with Slow Data Delivery Showing custom progress session.progressindicatorstyle =.none session ProgressReporting loadobject() Progress loaddatarepresentation() Progress loadfilerepresentation() Progress
183 Dealing with Slow Data Delivery Showing custom progress session.progressindicatorstyle =.none session ProgressReporting Observe progress session.progress Per item: Progress returned by item provider Allow the user to cancel the transfer loadobject() Progress loaddatarepresentation() Progress loadfilerepresentation() Progress
184 But how can I generate a preview if I don t have any data?
185 Dealing with Slow Data Delivery Previews without data
186 Dealing with Slow Data Delivery Previews without data Use and retarget the default previews
187 Dealing with Slow Data Delivery Previews without data Use and retarget the default previews Make a placeholder/progress preview Drag and Drop with Collection and Table View Hall 2 Thursday 9:00AM
188 Dealing with Slow Data Delivery Previews without data Use and retarget the default previews Make a placeholder/progress preview Never assume the data will be there Drag and Drop with Collection and Table View Hall 2 Thursday 9:00AM
189 Dealing with Slow Data Delivery Previews without data Use and retarget the default previews Make a placeholder/progress preview Never assume the data will be there Always account for the worst case Drag and Drop with Collection and Table View Hall 2 Thursday 9:00AM
190
191
192 Improved In-App Experience by Adding Drag and Drop
193 Improved In-App Experience Local drag and drop protocol UIDropSession : UIDragDropSession, ProgressReporting { var localdragsession: UIDragSession? { get } }
194 Improved In-App Experience Local drag and drop protocol UIDropSession : UIDragDropSession, ProgressReporting { var localdragsession: UIDragSession? { get } } Access to corresponding drag session nil for cross-app drags
195 Improved In-App Experience Local drag and drop class UIDragItem : NSObject { var localobject: Any? } var itemprovider: NSItemProvider { get }
196 Improved In-App Experience Local drag and drop class UIDragItem : NSObject { var localobject: Any? } var itemprovider: NSItemProvider { get } App-local data carrier State for drag Transfer data between views Provider fallback item provider (if drag can go outside app)
197 Improved In-App Experience Local drag and drop protocol UIDragSession : UIDragDropSession { var localcontext: Any? { get set } }
198 Improved In-App Experience Local drag and drop protocol UIDragSession : UIDragDropSession { var localcontext: Any? { get set } } Usable for state that applies to this drag session only
199 Improved In-App Experience Local drag and drop optional func draginteraction(_ interaction: UIDragInteraction, sessionisrestrictedtodraggingapplication session: UIDragSession) -> Bool // default: false var isrestrictedtodraggingapplication: Bool { get } Restrict drag sessions to local application Drop interactions in other apps won t see the session
200 Improved In-App Experience Local drag and drop optional func draginteraction(_ interaction: UIDragInteraction, sessionisrestrictedtodraggingapplication session: UIDragSession) -> Bool // default: false var isrestrictedtodraggingapplication: Bool { get } Restrict drag sessions to local application Drop interactions in other apps won t see the session
201 Improved In-App Experience Local drag and drop optional func draginteraction(_ interaction: UIDragInteraction, sessionisrestrictedtodraggingapplication session: UIDragSession) -> Bool // default: false var isrestrictedtodraggingapplication: Bool { get } Restrict drag sessions to local application Drop interactions in other apps won t see the session
202 Improved In-App Experience Local drag and drop optional func draginteraction(_ interaction: UIDragInteraction, sessionisrestrictedtodraggingapplication session: UIDragSession) -> Bool // default: false var isrestrictedtodraggingapplication: Bool { get } Restrict drag sessions to local application Drop interactions in other apps won t see the session
203 Improved In-App Experience Local drag and drop
204 Improved In-App Experience Local drag and drop By default drag interactions are Enabled on ipad Disabled on iphone
205 Improved In-App Experience Local drag and drop By default drag interactions are Enabled on ipad Disabled on iphone var isenabled: Bool class var isenabledbydefault: Bool { get }
206 Demo Wenson Hsieh, WebKit
207 Summary Powerful, user-driven I/O for your app Custom and stunning visuals and interactions Asynchronous nature of data Leverage Drag and Drop to improve in-app experience
208 More Information
209 Related Sessions Introducing Drag and Drop Hall 3 Tuesday 11:20AM Drag and Drop with Collection and Table View Hall 2 Thursday 9:00AM Data Delivery with Drag and Drop Hall 2 Thursday 10:00AM
210 Labs UIKit and Drag and Drop Lab Technology Lab C Tues 1:50PM-3:10PM Cocoa Touch Lab Technology Lab I Wed 3:10-6:00PM UIKit and Collection View Lab Technology Lab B Thur 10:00-12:30PM Cocoa Touch and Haptics Lab Technology Lab C Fri 12:00-1:50PM
211
212
Data Delivery with Drag and Drop
Session App Frameworks #WWDC17 Data Delivery with Drag and Drop 227 Dave Rahardja, UIKit Tanu Singhal, UIKit 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without
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Enhancing your apps for the next dimension of touch
App Frameworks #WWDC16 A Peek at 3D Touch Enhancing your apps for the next dimension of touch Session 228 Tyler Fox UIKit Frameworks Engineer Peter Hajas UIKit Frameworks Engineer 2016 Apple Inc. All rights
Mastering UIKit on tvos
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Using and Extending the Xcode Source Editor
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Quick Interaction Techniques for watchos
App Frameworks #WWDC16 Quick Interaction Techniques for watchos Session 211 Tom Witkin watchos Engineer Miguel Sanchez watchos Engineer 2016 Apple Inc. All rights reserved. Redistribution or public display
Cocoa Touch Best Practices
App Frameworks #WWDC15 Cocoa Touch Best Practices Session 231 Luke Hiesterman UIKit Engineer 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
Media and Gaming Accessibility
Session System Frameworks #WWDC17 Media and Gaming Accessibility 217 Greg Hughes, Software Engineering Manager Charlotte Hill, Software Engineer 2017 Apple Inc. All rights reserved. Redistribution or public
What s New in imessage Apps
Session App Frameworks #WWDC17 What s New in imessage Apps 234 Eugene Bistolas, Messages Engineer Jay Chae, Messages Engineer Stephen Lottermoser, Messages Engineer 2017 Apple Inc. All rights reserved.
Introducing Password AutoFill for Apps
Session App Frameworks #WWDC17 Introducing Password AutoFill for Apps Reducing friction for your users 206 Ricky Mondello, ios Engineer 2017 Apple Inc. All rights reserved. Redistribution or public display
What s New in MapKit. App Frameworks #WWDC17. Fredrik Olsson
Session App Frameworks #WWDC17 What s New in MapKit 237 Fredrik Olsson 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple. MKMapView.mapType.standard
What s New in Xcode App Signing
Developer Tools #WWDC16 What s New in Xcode App Signing Developing and distributing Session 401 Joshua Pennington Tools Engineering Manager Itai Rom Tools Engineer 2016 Apple Inc. All rights reserved.
imessage Apps and Stickers, Part 2
App Frameworks #WWDC16 imessage Apps and Stickers, Part 2 Interactive Messages Session 224 Alex Carter Messages Engineer Stephen Lottermoser Messages Engineer 2016 Apple Inc. All rights reserved. Redistribution
Building Watch Apps #WWDC15. Featured. Session 108. Neil Desai watchos Engineer
Featured #WWDC15 Building Watch Apps Session 108 Neil Desai watchos Engineer 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple. Agenda
What s New in watchos
Session App Frameworks #WWDC17 What s New in watchos 205 Ian Parks, watchos Engineering 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from
What s New in tvos 12
#WWDC18 What s New in tvos 12 Session 208 Hans Kim, tvos Engineering 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple. Agenda Agenda
Touch Bar Fundamentals
Session App Frameworks #WWDC17 Touch Bar Fundamentals 211 Chris Dreessen John Tegtmeyer 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from
ios Accessibility Developing for everyone Session 201 Ian Fisch ios Accessibility
App Frameworks #WWDC15 ios Accessibility Developing for everyone Session 201 Ian Fisch ios Accessibility 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without written
Advanced Scrollviews and Touch Handling Techniques
Frameworks #WWDC14 Advanced Scrollviews and Touch Handling Techniques Session 235 Josh Shaffer ios Apps and Frameworks Engineer Eliza Block ios Apps and Frameworks Engineer 2014 Apple Inc. All rights reserved.
Building for Voice with Siri Shortcuts
#WWDC18 Building for Voice with Siri Shortcuts Session 214 Amit Jain, Siri Ayaka Nonaka, Siri 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
What s New in NSCollectionView Session 225
App Frameworks #WWDC15 What s New in NSCollectionView Session 225 Troy Stephens Application Frameworks Engineer 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without
What s New in Core Data?
Session App Frameworks #WWDC17 What s New in Core? Persisting since 2004 210 Melissa Turner, Core Engineer Rishi Verma, Core Engineer 2017 Apple Inc. All rights reserved. Redistribution or public display
Leveraging Touch Input on ios
App Frameworks #WWDC16 Leveraging Touch Input on ios And getting the most out of Apple Pencil Session 220 Dominik Wagner UIKit Engineer 2016 Apple Inc. All rights reserved. Redistribution or public display
Accessibility on ios. Developing for everyone. Frameworks #WWDC14. Session 210 Clare Kasemset ios Accessibility
Frameworks #WWDC14 Accessibility on ios Developing for everyone Session 210 Clare Kasemset ios Accessibility 2014 Apple Inc. All rights reserved. Redistribution or public display not permitted without
What s New in tvos #WWDC16. App Frameworks. Session 206. Hans Kim tvos Engineer
App Frameworks #WWDC16 What s New in tvos Session 206 Hans Kim tvos Engineer 2016 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple. Welcome
What s New in ARKit 2
Session #WWDC18 What s New in ARKit 2 602 Arsalan Malik, ARKit Engineer Reinhard Klapfer, ARKit Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written
Monetize and Promote Your App with iad
Media #WWDC15 Monetize and Promote Your App with iad From design to launch Session 503 Carol Teng Shashank Phadke 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without
Implementing UI Designs in Interface Builder
Developer Tools #WWDC15 Implementing UI Designs in Interface Builder Session 407 Kevin Cathey Interface Builder Engineer Tony Ricciardi Interface Builder Engineer 2015 Apple Inc. All rights reserved. Redistribution
Managing Documents In Your ios Apps
Session #WWDC18 Managing Documents In Your ios Apps 216 Brandon Tennant, Software Engineer Thomas Deniau, Software Engineer Rony Fadel, Software Engineer 2018 Apple Inc. All rights reserved. Redistribution
Building Visually Rich User Experiences
Session App Frameworks #WWDC17 Building Visually Rich User Experiences 235 Noah Witherspoon, Software Engineer Warren Moore, Software Engineer 2017 Apple Inc. All rights reserved. Redistribution or public
Introducing MusicKit. Media #WWDC17. Tim Parthemore, MusicKit Services Joel Lopes Da Silva, ios Music
Session Media #WWDC17 Introducing MusicKit 502 Tim Parthemore, MusicKit Services Joel Lopes Da Silva, ios Music 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without
What's New in UIKit Dynamics and Visual Effects Session 229
App Frameworks #WWDC15 What's New in UIKit Dynamics and Visual Effects Session 229 Michael Turner UIKit Engineer David Duncan UIKit Engineer 2015 Apple Inc. All rights reserved. Redistribution or public
Using Grouped Notifications
#WWDC18 Using Grouped Notifications Session 711 Michele Campeotto, ios User Notifications 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
App Extension Best Practices
App Frameworks #WWDC15 App Extension Best Practices Session 224 Sophia Teutschler UIKit Engineer Ian Baird CoreOS Engineer 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted
Extending Your Apps with SiriKit
App Frameworks #WWDC16 Extending Your Apps with SiriKit Session 225 Vineet Khosla SiriKit Engineering Diana Huang SiriKit Engineering Scott Andrus SiriKit Engineering 2016 Apple Inc. All rights reserved.
Getting the Most Out of HealthKit
App Frameworks #WWDC16 Getting the Most Out of HealthKit What s new and best practices Session 209 Matthew Salesi ios Software Engineer Joefrey Kibuule ios Software Engineer 2016 Apple Inc. All rights
What s New in SpriteKit
Graphics and Games #WWDC16 What s New in SpriteKit Session 610 Ross Dexter Games Technologies Engineer Clément Boissière Games Technologies Engineer 2016 Apple Inc. All rights reserved. Redistribution
Seamless Linking to Your App
App Frameworks #WWDC15 Seamless Linking to Your App Session 509 Conrad Shultz Safari and WebKit Software Engineer Jonathan Grynspan Core Services Software Engineer 2015 Apple Inc. All rights reserved.
Creating Complications with ClockKit Session 209
App Frameworks #WWDC15 Creating Complications with ClockKit Session 209 Eliza Block watchos Engineer Paul Salzman watchos Engineer 2015 Apple Inc. All rights reserved. Redistribution or public display
Introducing the Modern WebKit API
Frameworks #WWDC14 Introducing the Modern WebKit API Session 206 Anders Carlsson Safari and WebKit Engineer 2014 Apple Inc. All rights reserved. Redistribution or public display not permitted without written
Building Faster in Xcode
#WWDC18 Building Faster in Xcode Session 408 David Owens, Xcode Engineer Jordan Rose, Swift Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written
Automatic Strong Passwords and Security Code AutoFill
Session #WWDC18 Automatic Strong Passwords and Security Code AutoFill 204 Chelsea Pugh, ios Engineer Reza Abbasian, ios Engineer Harris Papadopoulos, ios Engineer 2018 Apple Inc. All rights reserved. Redistribution
Integrating Apps and Content with AR Quick Look
Session #WWDC18 Integrating Apps and Content with AR Quick Look 603 David Lui, ARKit Engineering Dave Addey, ARKit Engineering 2018 Apple Inc. All rights reserved. Redistribution or public display not
Introduction to Siri Shortcuts
#WWDC8 Introduction to Siri Shortcuts Session 2 Ari Weinstein, Siri Willem Mattelaer, Siri 208 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
Enabling Your App for CarPlay
Session App Frameworks #WWDC17 Enabling Your App for CarPlay 719 Albert Wan, CarPlay Engineering 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
ios Memory Deep Dive #WWDC18 Kyle Howarth, Software Engineer James Snee, Software Engineer Kris Markel, Software Engineer
Session #WWDC18 ios Memory Deep Dive 416 Kyle Howarth, Software Engineer James Snee, Software Engineer Kris Markel, Software Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display
Designing for Apple Watch
Design #WWDC15 Designing for Apple Watch Session 802 Mike Stern User Experience Evangelist 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
Thread Sanitizer and Static Analysis
Developer Tools #WWDC16 Thread Sanitizer and Static Analysis Help with finding bugs in your code Session 412 Anna Zaks Manager, Program Analysis Team Devin Coughlin Engineer, Program Analysis Team 2016
What's New in Core Spotlight
Session System Frameworks #WWDC17 What's New in Core Spotlight Search on macos and ios 231 John Hörnkvist, Spotlight Lyn Fong, Spotlight 2017 Apple Inc. All rights reserved. Redistribution or public display
CarPlay Audio and Navigation Apps
#WWDC18 CarPlay Audio and Navigation Apps Tunes and turns Jonathan Hersh, ios Car Experience Albert Wan, ios Car Experience Mike Knippers, ios Car Experience 2018 Apple Inc. All rights reserved. Redistribution
Mysteries of Auto Layout, Part 1
App Frameworks #WWDC15 Mysteries of Auto Layout, Part 1 Session 218 Jason Yao Interface Builder Engineer Kasia Wawer ios Keyboards Engineer 2015 Apple Inc. All rights reserved. Redistribution or public
New UIKit Support for International User Interfaces
App Frameworks #WWDC15 New UIKit Support for International User Interfaces Session 222 Sara Radi Internationalization Software Engineer Aaltan Ahmad Internationalization Software Engineer Paul Borokhov
Core ML in Depth. System Frameworks #WWDC17. Krishna Sridhar, Core ML Zach Nation, Core ML
System Frameworks #WWDC17 Core ML in Depth Krishna Sridhar, Core ML Zach Nation, Core ML 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from
Accessibility on OS X
Frameworks #WWDC14 Accessibility on OS X New Accessibility API Session 207 Patti Hoa Accessibility Engineer! Chris Dolan Accessibility Engineer 2014 Apple Inc. All rights reserved. Redistribution or public
Introducing On Demand Resources
App Frameworks #WWDC15 Introducing On Demand Resources An element of App Thinning Session 214 Steve Lewallen Frameworks Engineering Tony Parker Cocoa Frameworks 2015 Apple Inc. All rights reserved. Redistribution
New Ways to Work with Workouts
Session #WWDC18 New Ways to Work with Workouts 707 Niharika Bedekar, Fitness Software Engineer Karim Benhmida, Health Software Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display
Building Apps with Dynamic Type
Session App Frameworks #WWDC17 Building Apps with Dynamic Type 245 Clare Kasemset, Software Engineering Manager Nandini Sundar, Software Engineer 2017 Apple Inc. All rights reserved. Redistribution or
What s New in Cocoa for macos
Session #WWDC18 What s New in Cocoa for macos 209 Ali Ozer, Cocoa Frameworks Chris Dreessen, Cocoa Frameworks Jesse Donaldson, Cocoa Frameworks 2018 Apple Inc. All rights reserved. Redistribution or public
Introducing PDFKit on ios
Session App Frameworks #WWDC17 Introducing PDFKit on ios PDF on macos and ios 241 Jeremy Bridon, Software Engineer Nicki Brower, Software Engineer 2017 Apple Inc. All rights reserved. Redistribution or
Localizing with Xcode 9
Session Developer Tools #WWDC17 Localizing with Xcode 9 401 Sara Radi, Software Engineer Aya Siblini, Software Engineer Chris Hanson, Software Engineer 2017 Apple Inc. All rights reserved. Redistribution
Vision Framework. Building on Core ML. Media #WWDC17. Brett Keating, Apple Manager Frank Doepke, He who wires things together
Session Media #WWDC17 Vision Framework Building on Core ML 506 Brett Keating, Apple Manager Frank Doepke, He who wires things together 2017 Apple Inc. All rights reserved. Redistribution or public display
Creating Audio Apps for watchos
Session #WWDC18 Creating Audio Apps for watchos 504 Neil Desai, watchos Frameworks Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
Understanding Undefined Behavior
Session Developer Tools #WWDC17 Understanding Undefined Behavior 407 Fred Riss, Clang Team Ryan Govostes, Security Engineering and Architecture Team Anna Zaks, Program Analysis Team 2017 Apple Inc. All
Swift API Design Guidelines
Developer Tools #WWDC16 Swift API Design Guidelines The Grand Renaming Session 403 Doug Gregor Swift Engineer Michael Ilseman Swift Engineer 2016 Apple Inc. All rights reserved. Redistribution or public
Stanford CS193p. Developing Applications for ios. Winter CS193p. Winter 2017
Stanford Developing Applications for ios Today Error Handling in Swift try Extensions A simple, powerful, but easily overused code management syntax Protocols Last (but certainly not least important) typing
Introducing the Contacts Framework
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What s New in Foundation for Swift Session 207
App Frameworks #WWDC16 What s New in Foundation for Swift Session 207 Tony Parker Foundation, Apple Michael LeHew Foundation, Apple 2016 Apple Inc. All rights reserved. Redistribution or public display
Announcements. Today s Topics
Announcements Lab 2 is due tonight by 11:59 PM Late policy is 10% of lab total per day late So -7.5 points per day late for lab 2 Labs 3 and 4 are posted on the course website Extensible Networking Platform
What s New in Notifications
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Core Data Best Practices
#WWDC18 Core Data Best Practices Session 224 Scott Perry, Engineer Nick Gillett, Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
Creating Great App Previews
Services #WWDC14 Creating Great App Previews Session 304 Paul Turner Sr. Operations Manager itunes Digital Supply Chain Engineering 2014 Apple Inc. All rights reserved. Redistribution or public display
WatchKit In-Depth, Part 2
App Frameworks #WWDC15 WatchKit In-Depth, Part 2 Session 208 Nathan de Vries watchos Engineer Chloe Chang watchos Engineer 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted
What s New in Audio. Media #WWDC17. Akshatha Nagesh, AudioEngine-eer Béla Balázs, Audio Artisan Torrey Holbrook Walker, Audio/MIDI Black Ops
Session Media #WWDC17 What s New in Audio 501 Akshatha Nagesh, AudioEngine-eer Béla Balázs, Audio Artisan Torrey Holbrook Walker, Audio/MIDI Black Ops 2017 Apple Inc. All rights reserved. Redistribution
Improving your Existing Apps with Swift
Developer Tools #WWDC15 Improving your Existing Apps with Swift Getting Swifty with It Session 403 Woody L. in the Sea of Swift 2015 Apple Inc. All rights reserved. Redistribution or public display not
Getting the Most out of Playgrounds in Xcode
#WWDC18 Getting the Most out of Playgrounds in Xcode Session 402 Tibet Rooney-Rabdau, Xcode Engineer Alex Brown, Core OS Engineer TJ Usiyan, Xcode Engineer 2018 Apple Inc. All rights reserved. Redistribution
Stanford CS193p. Developing Applications for ios. Fall CS193p. Fall
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Advances in AVFoundation Playback
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What s New in SiriKit
Session App Frameworks #WWDC17 What s New in SiriKit 214 Sirisha Yerroju, SiriKit Engineer Tin Tran, SiriKit Engineer 2017 Apple Inc. All rights reserved. Redistribution or public display not permitted
SceneKit: What s New Session 604
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Session Developer Tools #WWDC17 Finding Bugs Using Xcode Runtime Tools 406 Kuba Mracek, Program Analysis Engineer Vedant Kumar, Compiler Engineer 2017 Apple Inc. All rights reserved. Redistribution or
Stanford CS193p. Developing Applications for ios. Spring CS193p. Spring 2016
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AVContentKeySession Best Practices
Session #WWDC18 AVContentKeySession Best Practices 507 Anil Katti, AVFoundation Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from
ios Configuration and APIs for Kiosk and Assessment Apps
Session Systems Framework #WWDC17 ios Configuration and APIs for Kiosk and Assessment Apps 716 Steve Hayman, Consulting Engineer 2017 Apple Inc. All rights reserved. Redistribution or public display not
What s New in Testing
#WWDC18 What s New in Testing Session 403 Honza Dvorsky, Xcode Engineer Ethan Vaughan, Xcode Engineer 2018 Apple Inc. All rights reserved. Redistribution or public display not permitted without written
View Controller Advancements for ios8
Frameworks #WWDC14 View Controller Advancements for ios8 Session 214 Bruce D. Nilo Manager, UIKit Fundamentals 2014 Apple Inc. All rights reserved. Redistribution or public display not permitted without
Getting Started with CareKit
App Frameworks #WWDC16 Getting Started with CareKit Session 237 Umer Khan Software Engineer 2016 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
Apple Watch Design Tips and Tricks
Design #WWDC15 Apple Watch Design Tips and Tricks Session 805 Mike Stern User Experience Evangelist Rachel Roth User Experience Evangelist 2015 Apple Inc. All rights reserved. Redistribution or public
What s New in CloudKit
System Frameworks #WWDC15 What s New in CloudKit Session 704 Olivier Bonnet icloud Client Eric Krugler icloud Server 2015 Apple Inc. All rights reserved. Redistribution or public display not permitted
Lecture 8 Demo Code: Cassini Multithreading
Lecture 8 Demo Code: Cassini Multithreading Objective Included below is the source code for the demo in lecture. It is provided under the same Creative Commons licensing as the rest of CS193p s course
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Adopting Advanced Features of the New UI
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lecture 10 UI/UX and Programmatic Design cs : spring 2018
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Designing Great Apple Watch Experiences
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What s New in Swift Playgrounds
Session Developer Tools #WWDC17 What s New in Swift Playgrounds 408 Connor Wakamo, Playgrounds Engineer Grace Kendall, Playgrounds Engineer Najla Bulous, Playgrounds Engineer 2017 Apple Inc. All rights
Event Delivery: The Responder Chain
When you design your app, it s likely that you want to respond to events dynamically. For example, a touch can occur in many different objects onscreen, and you have to decide which object you want to
Your Apps and the Future of macos Security
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Introducing SiriKit. Hey Siri, say hello to apps #WWDC16. App Frameworks. Session 217
App Frameworks #WWDC16 Introducing SiriKit Hey Siri, say hello to apps Session 217 Robby Walker SiriKit Engineering Brandon Newendorp SiriKit Engineering Corey Peterson SiriKit Design 2016 Apple Inc. All
Advanced Notifications
System Frameworks #WWDC16 Advanced Notifications Session 708 Michele Campeotto ios Notifications 2016 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission
Getting Published in Apple News
Media #WWDC16 Getting Published in Apple News Session 502 Ryan Griggs Apple News 2016 Apple Inc. All rights reserved. Redistribution or public display not permitted without written permission from Apple.