能否添加一个适用于计费网络环境下的对应用联网控制的功能？即为在开启这一个功能的时候，会仅限允许在白名单的应用程序联网，以保证连接了非iOS设备的热点/计费网络的情况下，不会产生大量的流量开支（经常可能会出现的情况是，我的iCloud等其他应用在连接至计费网络的时候疯狂消耗流量，导致我每一个月因此而产生的流量费用极高）。"节能器"这一个已有功能可能可以解决这一个问题，因为可以限制部分系统的应用，从而降低流量消耗。但是那一个仅限于在充电器没有连接的时候启用，相对来说会比较麻烦。所以希望能够添加这一个功能 Here is the English version for better view if this forum does not support other languages: Please add one feature which only allows specific applications to be accessible to the internet while this function is turned on. While using the internet with tethering(like connecting to a hotspot created by non-iOS devices), the most common case for me is that the iCloud and other application used lots of my traffic, making my traffic budget extremely high. The battery saver could help disable some of the functions, which uses lots of energy and saves traffic; however, it could not be triggered while the adaptor is plugged in.
