具有MODE_PRIVATE，MODE_WORLD_READABLE，MODE_WORLD_WRITABLE的Android SharedPreferences [英] Android SharedPreferences with MODE_PRIVATE,MODE_WORLD_READABLE,MODE_WORLD_WRITABLE

问题描述

SharedPreferences是应用程序本地的，并且不在不同的应用程序之间共享.当我说

SharedPreferences in Android are local to an Application, and not shared between different applications. When I say

SharedPreferences preferences = getSharedPreferences(PREF_NAME, MODE_WORLD_READABLE);

表示此首选项MODE_WORLD_READABLE，MODE_WORLD_WRITABLE或 MODE_PRIVATE?

推荐答案

getSharedPreferences(String name, int mode)解释了更多信息此处

编辑 从API 17开始，不推荐使用MODE_WORLD_READABLE和MODE_WORLD_WRITEABLE:

Edit As of API 17, the MODE_WORLD_READABLE and MODE_WORLD_WRITEABLE are deprecated:

此常量在API级别17中已弃用.
创建世界可读的文件非常危险，并且可能导致应用程序中的安全漏洞.强烈建议不要这样做.相反，应用程序应使用更正式的机制进行交互，例如ContentProvider，BroadcastReceiver和Service.无法保证此访问模式将保留在文件上，例如在进行备份和还原时.

This constant was deprecated in API level 17.
Creating world-readable files is very dangerous, and likely to cause security holes in applications. It is strongly discouraged; instead, applications should use more formal mechanism for interactions such as ContentProvider, BroadcastReceiver, and Service. There are no guarantees that this access mode will remain on a file, such as when it goes through a backup and restore.

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