現在、iOS IPA のサイズを最適化しようとしていますが、新しい「iOS App Slicing」が最終出力に含まれる画像の量を減らすことを期待していました。そうではないようです。
私はiOS 9.3、展開ターゲット（7.0 - 9.3も試してみましたが無駄でした）で構築しています。これはユニバーサル アプリであり、アプリ アイコン/起動画像はアセット カタログにあります (他の画像リソースと共に)。
スライスをテストするために、次の手順に従いました: https://developer.apple.com/library/tvos/documentation/IDEs/Conceptual/AppDistributionGuide/TestingYouriOSApp/TestingYouriOSApp.html#//apple_ref/doc/uid/TP40012582-CH8- SW17
App Thinning Size Report は、デバイス タイプ間のサイズの差がほとんどないことを示しており、iPad と iPhone の間にはかなりの差があるはずです!
App Thinning Size Report for All Variants of myApp
Variant: myApp-iPad (4th generation)-etc.ipa
Supported devices: iPad (3rd generation) and iPad (4th generation)
App + On Demand Resources size: 71.8 MB compressed, 90.3 MB uncompressed
App size: 71.8 MB compressed, 90.3 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPad 2-etc.ipa
Supported devices: iPad 2 and iPad mini
App + On Demand Resources size: 71.6 MB compressed, 90.1 MB uncompressed
App size: 71.6 MB compressed, 90.1 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPad Pro (12.9-inch).ipa
Supported devices: iPad Pro (12.9-inch)
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPad Pro (9.7-inch).ipa
Supported devices: iPad Pro (9.7-inch)
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPad mini 3-etc.ipa
Supported devices: iPad Air, iPad mini 2, and iPad mini 3
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPad mini 4-etc.ipa
Supported devices: iPad Air 2 and iPad mini 4
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone 4S.ipa
Supported devices: iPhone 4S
App + On Demand Resources size: 71.8 MB compressed, 90.3 MB uncompressed
App size: 71.8 MB compressed, 90.3 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone 5-etc.ipa
Supported devices: iPhone 5 and iPhone 5c
App + On Demand Resources size: 71.8 MB compressed, 90.3 MB uncompressed
App size: 71.8 MB compressed, 90.3 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone 5s.ipa
Supported devices: iPhone 5s
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone 6 Plus.ipa
Supported devices: iPhone 6 Plus
App + On Demand Resources size: 71.9 MB compressed, 91.2 MB uncompressed
App size: 71.9 MB compressed, 91.2 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone 6.ipa
Supported devices: iPhone 6
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone 6s Plus.ipa
Supported devices: iPhone 6s Plus
App + On Demand Resources size: 71.9 MB compressed, 91.2 MB uncompressed
App size: 71.9 MB compressed, 91.2 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone 6s.ipa
Supported devices: iPhone 6s
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPhone SE.ipa
Supported devices: iPhone SE
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPod touch (6th generation).ipa
Supported devices: iPod touch (6th generation)
App + On Demand Resources size: 71.5 MB compressed, 90.9 MB uncompressed
App size: 71.5 MB compressed, 90.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp-iPod touch.ipa
Supported devices: iPod touch
App + On Demand Resources size: 71.8 MB compressed, 90.3 MB uncompressed
App size: 71.8 MB compressed, 90.3 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
Variant: myApp.ipa
Supported devices: Universal
App + On Demand Resources size: 75.3 MB compressed, 99.9 MB uncompressed
App size: 75.3 MB compressed, 99.9 MB uncompressed
On Demand Resources size: Zero KB compressed, Zero KB uncompressed
プロセスによってエクスポートされた「特定のデバイスのバリアント」をさらに調査すると、明らかにスライスが発生していないことがわかりました。
iPhone 5 デバイス バリアントのアプリ ペイロード - IPA の解凍後:
スライスに関する私の理解が正しければ、他の iOS デバイス (iPhone 6+、iPad など) のアイコンや起動イメージは表示されません。
それが役立つ場合、これが私のアセットカタログの内容です（xcodeとfinderで）：
前もって感謝します！:)