【Android】SharedPreferences commit（同步）apply（异步）

最新推荐文章于 2024-04-01 11:19:32 发布

转载最新推荐文章于 2024-04-01 11:19:32 发布 · 1k 阅读

文章标签：

#android

Android 同时被 2 个专栏收录

522 篇文章

订阅专栏

Android Persistence

17 篇文章

订阅专栏

本文深入探讨了Android中SharedPreferences类中apply()与commit()方法的使用场景与区别，揭示了apply()立即修改内存并异步提交到磁盘的特点，以及commit()同步写入磁盘的操作，并通过实例解释了二者在实际开发中的应用。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

From: http://blog.youkuaiyun.com/tuhuolong/article/details/20644501
Unlike commit(), which writes its preferences out to persistent storage synchronously, apply() commits its changes to the in-memory SharedPreferencesimmediately but starts an asynchronous commit to disk and you won't be notified of any failures. If another editor on this SharedPreferences does a regularcommit() while a apply() is still outstanding, the commit() will block until all async commits are completed as well as the commit itself.