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将实时活动功能引入 Apple Watch
从 iPadOS 18 和 watchOS 11 开始,将实时活动引入 Apple Watch 上的智能叠放。我们将介绍实时活动会如何显示在 Apple Watch 上,以及如何提升实时活动在智能叠放中的显示效果。我们还将探索一些其他注意事项,以确保 Apple Watch 上的实时活动能够始终显示最新的信息。
章节
- 0:00 - Introduction
- 1:07 - Review your Live Activity
- 3:22 - Customize for Apple Watch
- 6:02 - Keep it live
资源
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下载Array
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1:28 - Existing Live Activity views
struct DeliveryLiveActivity: Widget { var body: some WidgetConfiguration { ActivityConfiguration( for: DeliveryActivityAttributes.self ) { context in DeliveryActivityContent(context: context) } dynamicIsland: { context in DynamicIsland { DynamicIslandExpandedRegion(.leading) { DeliveryExpandedLeadingView(context: context) } DynamicIslandExpandedRegion(.trailing) { DeliveryExpandedTrailingView(context: context) } DynamicIslandExpandedRegion(.bottom) { DeliveryExpandedBottomView(context: context) } } compactLeading: { DeliveryCompactLeading(context: context) } compactTrailing: { DeliveryCompactTrailing(context: context) } minimal: { DeliveryMinimal(context: context) } } } }
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3:43 - Preview Live Activities with Xcode Previews
extension DeliveryActivityAttributes.ContentState { static var shippedOrder: DeliveryActivityAttributes.ContentState { .init( status: .shipped, courierName: "Johnny" ) } static var packedOrder: DeliveryActivityAttributes.ContentState { .init( status: .packed, courierName: "Contacting Courier...") } } #Preview( "Dynamic Island Compact", as: .dynamicIsland(.compact), using: DeliveryActivityAttributes.preview ) { DeliveryLiveActivity() } contentStates: { DeliveryActivityAttributes.ContentState.packedOrder DeliveryActivityAttributes.ContentState.shippedOrder }
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4:15 - Add .supplementalActivityFamilies to indicate support for the Smart Stack
struct DeliveryLiveActivity: Widget { var body: some WidgetConfiguration { ActivityConfiguration( for: DeliveryActivityAttributes.self ) { context in DeliveryActivityContent(context: context) } dynamicIsland: { context in DynamicIsland { DynamicIslandExpandedRegion(.leading) { DeliveryExpandedLeadingView(context: context) } DynamicIslandExpandedRegion(.trailing) { DeliveryExpandedTrailingView(context: context) } DynamicIslandExpandedRegion(.bottom) { DeliveryExpandedBottomView(context: context) } } compactLeading: { DeliveryCompactLeading(context: context) } compactTrailing: { DeliveryCompactTrailing(context: context) } minimal: { DeliveryMinimal(context: context) } } .supplementalActivityFamilies([.small]) } }
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4:49 - Customize view layout for the small activity family
struct DeliveryActivityContent: View { @Environment(\.activityFamily) var activityFamily var context: ActivityViewContext<DeliveryActivityAttributes> var body: some View { switch activityFamily { case .small: DeliverySmallContent(context: context) case .medium: DeliveryMediumContent(context: context) @unknown default: DeliveryMediumContent(context: context) } } }
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5:06 - Preview customized layouts for the Smart Stack
#Preview("Content", as: .content, using: DeliveryActivityAttributes.preview) { DeliveryLiveActivity() } contentStates: { DeliveryActivityAttributes.ContentState.packedOrder DeliveryActivityAttributes.ContentState.shippedOrder }
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8:37 - Use isLuminanceReduced to remove bright elements with Always On Display
struct DeliveryGauge: View { @Environment(\.isLuminanceReduced) private var isLuminanceReduced var context: ActivityViewContext<DeliveryActivityAttributes> var body: some View { Gauge(value: context.state.progressPercent) { GaugeLabel(context: context) } .tint(isLuminanceReduced ? .gaugeDim : .gauge) } }
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8:57 - For Live Activities with a light appearance, use a light preferredColorScheme
struct DeliveryActivityContent: View { @Environment(\.activityFamily) var activityFamily var context: ActivityViewContext<DeliveryActivityAttributes> var body: some View { switch activityFamily { case .small: DeliverySmallContent(context: context) .preferredColorScheme(.light) case .medium: DeliveryMediumContent(context: context) @unknown default: DeliveryMediumContent(context: context) } } }
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