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More than 3 years have passed since last update.

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アプリを約250個以上起動するとUser Defaultsが読み込めなくなる問題について


NSUserDefaults Data Loss Fix

Starting in iOS 9.3, and in subsequent releases of iOS and macOS, NSUserDefaults could fail to load data if more than roughly 250 separate apps (including separate reinstalls of the same app) had been launched since the last reboot. This has been corrected.


現状では回避が不可能に思われるので、User Defaultのロードに失敗した際のケアをしっかりする必要がありそうです。

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Help us understand the problem. What are the problem?