Fix issue where LottieView animation would restart from beginning after backgrounding app #2237
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1 build increased size
SizeTest 1.0 (1)
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| Item | Install Size Change |
|---|---|
| 📝 Lottie.LRUCache.setValue(forKey,cost) | ⬆️ 1.8 kB |
| 📝 Lottie.LRUCache.init(totalCostLimit,countLimit,notificationCenter... | ⬆️ 932 B |
| 📝 Lottie.LRUCache.value(forKey) | ⬆️ 596 B |
| Other | ⬆️ 7.4 kB |
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miguel-jimenez-0529
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This PR contains the following updates: | Package | Update | Change | |---|---|---| | [airbnb/lottie-spm](https://togithub.com/airbnb/lottie-spm) | patch | `from: "4.3.3"` -> `from: "4.3.4"` | --- ### Release Notes <details> <summary>airbnb/lottie-spm (airbnb/lottie-spm)</summary> ### [`v4.3.4`](https://togithub.com/airbnb/lottie-spm/releases/tag/4.3.4) [Compare Source](https://togithub.com/airbnb/lottie-spm/compare/4.3.3...4.3.4) #### What's Changed - Fix parsing regression in 4.3.0 from addition of parsing layer effects by [@​calda](https://togithub.com/calda) in [https://github.com/airbnb/lottie-ios/pull/2208](https://togithub.com/airbnb/lottie-ios/pull/2208) - Remove old animation layer when creating a new animation layer by [@​junjielu](https://togithub.com/junjielu) in [https://github.com/airbnb/lottie-ios/pull/2214](https://togithub.com/airbnb/lottie-ios/pull/2214) - Add configuration setting to remove animated bounds changes by [@​thedrick](https://togithub.com/thedrick) in [https://github.com/airbnb/lottie-ios/pull/2218](https://togithub.com/airbnb/lottie-ios/pull/2218) - Change pod dependencies `SwiftUI` and `Combine` to `weak` to ensure compatibility with iOS 12 by [@​florianrhein](https://togithub.com/florianrhein) in [https://github.com/airbnb/lottie-ios/pull/2219](https://togithub.com/airbnb/lottie-ios/pull/2219) - Fix issue where Repeater would be ignored if not at top level by [@​calda](https://togithub.com/calda) in [https://github.com/airbnb/lottie-ios/pull/2221](https://togithub.com/airbnb/lottie-ios/pull/2221) - Replace `UIScreen.main` to get display scale on iOS 13.0 and later ([#​2215](https://togithub.com/airbnb/lottie-spm/issues/2215)) by [@​hyun99999](https://togithub.com/hyun99999) in [https://github.com/airbnb/lottie-ios/pull/2216](https://togithub.com/airbnb/lottie-ios/pull/2216) - Dispatch dot lottie file loading onto a single serial queue by [@​erichoracek](https://togithub.com/erichoracek) in [https://github.com/airbnb/lottie-ios/pull/2229](https://togithub.com/airbnb/lottie-ios/pull/2229) - Clean up unused property in InvertedMatteLayer by [@​hanton](https://togithub.com/hanton) in [https://github.com/airbnb/lottie-ios/pull/2241](https://togithub.com/airbnb/lottie-ios/pull/2241) - Fix issue where LottieView animation would restart from beginning after backgrounding app by [@​calda](https://togithub.com/calda) in [https://github.com/airbnb/lottie-ios/pull/2237](https://togithub.com/airbnb/lottie-ios/pull/2237) **Full Changelog**: airbnb/lottie-ios@4.3.3...4.3.4 </details> --- ### Configuration 📅 **Schedule**: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined). 🚦 **Automerge**: Enabled. ♻ **Rebasing**: Whenever PR is behind base branch, or you tick the rebase/retry checkbox. 👻 **Immortal**: This PR will be recreated if closed unmerged. Get [config help](https://togithub.com/renovatebot/renovate/discussions) if that's undesired. --- - [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check this box --- This PR has been generated by [Renovate Bot](https://togithub.com/renovatebot/renovate). <!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzNi4xMDAuMCIsInVwZGF0ZWRJblZlciI6IjM2LjEwMC4wIiwidGFyZ2V0QnJhbmNoIjoibWFpbiJ9--> Co-authored-by: Self-hosted Renovate Bot <361546+cgrindel-self-hosted-renovate[bot]@users.noreply.github.enterprise.com>
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iago849
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Feb 8, 2024
…er backgrounding app (airbnb#2237)
MoroziOS
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May 22, 2024
…er backgrounding app (airbnb#2237)
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This PR fixes an issue where the SwiftUI
LottieViewwould always restart playback from the beginning after backgrounding the app, even when using aLottieBackgroundBehaviorlikecontinuePlayingorpauseAndRestore.When using the default
LottieView.init(animation:)initializer, the animation expression is recomputed on every view update. Since these calls include aAnimationCacheProvider, this simply returns the existingLottieAnimationinstance rather than actually loading the animation from disk on every update.DefaultAnimationCacheis backed by anNSCache. The issue here is thatNSCacheactually evicts all of the cached items when the app is backgrounded (regardless of if there is memory pressure or not). I hadn't heard about this behavior before now!This means that after backgrounding the app and then foregrounding it again, on the following SwiftUI view update:
LottieAnimationinstanceLottieViewwill callview.loadAnimation(animationSource)We can fix this by using the
LRUCachelibrary as a replacement forNSCache.LRUCacheworks very similarly toNSCache, and automatically handled responding to memory pressure.LRUCachedoesn't include this "reset when backgrounded" behavior, though, which avoids this specific issue.