SharedPreferences的模式 mode

最新推荐文章于 2024-09-01 10:17:43 发布

Vincent_czz

最新推荐文章于 2024-09-01 10:17:43 发布

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分类专栏： JAVA Android 文章标签： returning file object android each api

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本文详细介绍了如何在Android应用中使用publicabstract SharedPreferences getSharedPreferences方法获取SharedPreferences实例，并通过该实例进行偏好设置文件的读取与修改操作。文章涵盖参数解释、实例返回、权限控制以及多进程共享等内容。

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public abstract SharedPreferences getSharedPreferences (String name, int mode)

Since: API Level 1

Retrieve and hold the contents of the preferences file 'name', returning a SharedPreferences through which you can retrieve and modify its values. Only one instance of the SharedPreferences object is returned to any callers for the same name, meaning they will see each other's edits as soon as they are made.

Parameters

name	Desired preferences file. If a preferences file by this name does not exist, it will be created when you retrieve an editor (SharedPreferences.edit()) and then commit changes (Editor.commit()).
mode	Operating mode. Use 0 or `MODE_PRIVATE` for the default operation, `MODE_WORLD_READABLE` and `MODE_WORLD_WRITEABLE` to control permissions. The bit`MODE_MULTI_PROCESS` can also be used if multiple processes are mutating the same SharedPreferences file. `MODE_MULTI_PROCESS` is always on in apps targetting Gingerbread (Android 2.3) and below, and off by default in later versions.