Embedded SwiftUI example

[porter-stripe]

Summary

• Adds a sample SwiftUI integration with embedded
• Does not define the public API for the SwiftUI helpers yet. But we will likely expose something like EmbeddedPaymentElementView and a lightweight EmbeddedPaymentViewModel.
• Few highlights/notable things
  • Use of a container view in makeUIView is required. Instead of directly attaching the embedded view to SwiftUI, we use a container. This container gives us a fixed point to apply layout constraints and measure the embedded view's size. If we skipped the container and used the embedded view directly, its height would be undefined, causing constraint breakages and leading SwiftUI to treat it as zero.
  • Passing a binding between the UIViewRepresentable and the SwiftUI: There is a workaround that would allow us to remove this, but we lose the ability to animate smoothly. Passing this binding to the SwfitUI view allows us to animate the height.
• Adds 1 E2E UI test for SwiftUI example and some snapshot tests.

Payment

Simulator.Screen.Recording.-.iOS.18.-.2025-01-08.at.10.07.20.mp4

Height animation

Simulator.Screen.Recording.-.iOS.18.-.2025-01-08.at.10.08.43.mp4

Updates

Simulator.Screen.Recording.-.iOS.18.-.2025-01-10.at.10.48.30.mp4

Motivation

• Embedded GA

Testing

• Manual

Changelog

N/A

[github-actions]

🚨 New dead code detected in this PR:

EmbeddedPaymentElement+SwiftUI.swift:205 warning: Property 'parent' is assigned, but never used

Please remove the dead code before merging.

If this is intentional, you can bypass this check by adding the label skip dead code check to this PR.

ℹ️ If this comment appears to be left in error, double check that the flagged code is actually used and/or make sure your branch is up-to-date with master.

[emerge-tools]

1 build increased size, 2 builds decreased size, 5 builds had no size change

Name	Version	Download	Change	Install	Change	Approval
StripeSize com.stripe.StripeSize	1.0 (1)	2.1 MB	⬇️ 9 B	6.9 MB	-	N/A
StripePaymentsSize com.stripe.StripePaymentsSize	1.0 (1)	1.2 MB	-	4.2 MB	-	N/A
StripePaymentsUISize com.stripe.StripePaymentsUISize	1.0 (1)	1.9 MB	⬇️ 4 B	6.4 MB	-	N/A
StripePaymentSheetSize com.stripe.StripePaymentSheetSize	1.0 (1)	3.7 MB	⬆️ 8.4 kB (0.23%)	11.1 MB	⬆️ 26.1 kB (0.24%)	N/A
StripeIdentitySize com.stripe.StripeIdentitySize	1.0 (1)	1.4 MB	⬇️ 1 B	4.3 MB	-	N/A
StripeApplePaySize com.stripe.StripeApplePaySize	1.0 (1)	484.8 kB	-	1.7 MB	-	N/A
StripeFinancialConnectionsSize com.stripe.StripeFinancialConnectionsSize	1.0 (1)	1.4 MB	⬇️ 66.3 kB (-4.53%)	4.5 MB	⬇️ 191.4 kB (-4.1%)	N/A
StripeConnectSize com.stripe.StripeConnectSize	1.0 (1)	1.6 MB	⬇️ 67.6 kB (-4.16%)	5.0 MB	⬇️ 193.3 kB (-3.74%)	N/A

StripeSize 1.0 (1)
com.stripe.StripeSize

No changes to report

StripePaymentsSize 1.0 (1)
com.stripe.StripePaymentsSize

No changes to report

StripePaymentsUISize 1.0 (1)
com.stripe.StripePaymentsUISize

No changes to report

StripePaymentSheetSize 1.0 (1)
com.stripe.StripePaymentSheetSize

⚖️ Compare build
⏱️ Analyze build performance

Total install size change: ⬆️ 26.1 kB (0.24%)
Total download size change: ⬆️ 8.4 kB (0.23%)

Largest size changes

Item	Install Size Change
📝 StripePaymentSheet.EmbeddedPaymentElementViewModel.EmbeddedPaymen...	⬆️ 2.3 kB
DYLD.Exports	⬆️ 1.7 kB
DYLD.Fixups	⬆️ 1.5 kB
DYLD.String Table	⬆️ 1.4 kB
StripePaymentSheet.EmbeddedFormViewController.paymentMethodFormVi...	⬇️ -1.4 kB

View Treemap

StripeIdentitySize 1.0 (1)
com.stripe.StripeIdentitySize

No changes to report

StripeApplePaySize 1.0 (1)
com.stripe.StripeApplePaySize

No changes to report

StripeFinancialConnectionsSize 1.0 (1)
com.stripe.StripeFinancialConnectionsSize

⚖️ Compare build
⏱️ Analyze build performance

Total install size change: ⬇️ 191.4 kB (-4.1%)
Total download size change: ⬇️ 66.3 kB (-4.53%)

Largest size changes

Item	Install Size Change
🗑 StripeFinancialConnections.FinancialConnectionsAsyncAPIClient	⬇️ -13.5 kB
Swift._NativeDictionary.merge(isUnique,uniquingKeysWith)	⬇️ -4.4 kB
Code Signature	⬇️ -4.2 kB
📝 StripeFinancialConnections.NativeFlowAPIDataManager.manifest.dids...	⬆️ 2.0 kB
StripeFinancialConnections.NativeFlowAPIDataManager.init(manifest...	⬆️ 1.8 kB

View Treemap

StripeConnectSize 1.0 (1)
com.stripe.StripeConnectSize

⚖️ Compare build
⏱️ Analyze build performance

Total install size change: ⬇️ 193.3 kB (-3.74%)
Total download size change: ⬇️ 67.6 kB (-4.16%)

Largest size changes

Item	Install Size Change
🗑 StripeFinancialConnections.FinancialConnectionsAsyncAPIClient	⬇️ -13.6 kB
Code Signature	⬇️ -5.0 kB
Swift._NativeDictionary.merge(isUnique,uniquingKeysWith)	⬇️ -4.4 kB
📝 StripeFinancialConnections.NativeFlowAPIDataManager.manifest.dids...	⬆️ 2.0 kB
StripeFinancialConnections.NativeFlowAPIDataManager.init(manifest...	⬆️ 1.8 kB

View Treemap

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