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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,48 @@ | ||
| // | ||
| // StateInstance.swift | ||
| // SwiftUIPagerExample | ||
| // | ||
| // Created by Fernando Moya de Rivas on 29/11/20. | ||
| // Copyright © 2020 Fernando Moya de Rivas. All rights reserved. | ||
| // | ||
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| import SwiftUI | ||
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| /// Workaround to use `StateObject` in _iOS 14_ and `ObservedObject` in _iOS 13_ | ||
| @available(iOS 13.0, OSX 10.15, tvOS 13.0, watchOS 6.0, *) | ||
| @propertyWrapper struct StateInstance<ObjectType>: DynamicProperty where ObjectType: ObservableObject { | ||
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| @available(iOS 13.0, OSX 10.15, tvOS 13.0, watchOS 6.0, *) | ||
| @ObservedObject private var observedObject: ObjectType | ||
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| private var _stateObject: Any? | ||
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| @available(iOS 14.0, OSX 10.16, tvOS 14.0, watchOS 7.0, *) | ||
| private var stateObject: ObjectType? { | ||
| _stateObject as? ObjectType | ||
| } | ||
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| var wrappedValue: ObjectType { | ||
| get { | ||
| if #available(iOS 14.0, OSX 10.16, tvOS 14.0, watchOS 7.0, *) { | ||
| return stateObject ?? observedObject | ||
| } else { | ||
| return observedObject | ||
| } | ||
| } | ||
| set { | ||
| if #available(iOS 14.0, OSX 10.16, tvOS 14.0, watchOS 7.0, *) { | ||
| self._stateObject = StateObject(wrappedValue: newValue) | ||
| } | ||
| observedObject = newValue | ||
| } | ||
| } | ||
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| init(wrappedValue: ObjectType) { | ||
| if #available(iOS 14.0, OSX 10.16, tvOS 14.0, watchOS 7.0, *) { | ||
| self._stateObject = StateObject(wrappedValue: wrappedValue) | ||
| } | ||
| observedObject = wrappedValue | ||
| } | ||
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| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| // | ||
| // Pager+Helper.swift | ||
| // SwiftUIPager | ||
| // | ||
| // Created by Fernando Moya de Rivas on 19/01/2020. | ||
| // Copyright © 2020 Fernando Moya de Rivas. All rights reserved. | ||
| // | ||
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| import SwiftUI | ||
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| /// Workaround to avoid `Binding` updating after rest of `State` after drag ends | ||
| /// More info [here](https://developer.apple.com/forums/thread/667988) and [here](https://developer.apple.com/forums/thread/667720) | ||
| @available(iOS 13.0, OSX 10.15, tvOS 13.0, watchOS 6.0, *) | ||
| class PagerModel: ObservableObject { | ||
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| @Published var page: Int | ||
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| init(page: Int) { | ||
| self.page = page | ||
| } | ||
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| } |
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