Android双卡双待编程识别

最新推荐文章于 2021-05-27 15:31:06 发布

原创最新推荐文章于 2021-05-27 15:31:06 发布 · 3.3k 阅读

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本文深入解析了Android5.1版本中关于多SIM卡支持的实现细节，包括如何通过SubscriptionManager类获取当前激活SIM卡信息，以及如何针对敏感数据使用情况调整应用数据访问策略。

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如今，尤其是在中国，双卡双待如此普及和如此广泛，双卡双待已经成为智能手机的事实上的标准。大势所趋，为此，Android从Android 5.1开始，从Android SDK API层面开始支持双卡双待或1个以上的SIM卡。Android官方的文档阐释链接：

https://developer.android.com/about/versions/android-5.1.html#multisim

原文：

Multiple SIM Card Support

Android 5.1 adds support for using more than one cellular carrier SIM card at a time. This feature lets users activate and use additional SIMs on devices that have two or more SIM card slots.

You can access information about the currently active SIM through theSubscriptionManager class, including whether or not the device is considered to be roaming on the current network. This information is useful for developers who want to throttle their apps' data access down or off for device users who are sensitive to data access charges. Your app can be alerted to changes in a device's current network connection by requesting the READ_PHONE_STATE permission and settingSubscriptionManager.OnSubscriptionsChangedListener on theSubscriptionManager object.