iOS8 之后添加了App Groups，應(yīng)用可以通過App Groups共享數(shù)據(jù)，原文如下：

AppGroup allows data sharing between two different apps or even app and widgets by creating one common shared path (like document directory). Data saved over there can be accessed by any app which is associated with that particular AppGroup. It is an offline data sharing between apps.

使用方法如下：

1.創(chuàng)建app groups

2.配置app groups

3.使用

在代碼中定義創(chuàng)建的app group

通過NSUserDefaults 共享數(shù)據(jù)