谷歌Play中的定位服务不能在模式“仅设备”中工作

I have an app that tracks the location of the device. In the past I used the Android framework location APIs. Worked as intended – so no real need to change that. But now I want to evaluate the Location Services from the Google Play Services that Google recommends to use, so I changed my app accordingly. There are some options that might come handy in the future.I have an app that tracks the location of the d