如何知道iOS设备何时插入？ [英] How to know when iOS device is plugged in?

问题描述

有没有办法知道我的设备（iPhone）何时插上电源，如带有USB端口的电脑或汽车音响系统？我在我的应用程序中使用本地化服务，并且我希望在插入设备时自动更改为 kCLLocationAccuracyBestForNavigation 。谢谢...

Is there a way to know when my device (iPhone) is plugged in to source power, like a computer or car audio systems with a USB port? I use localization services in my app and I want to change to kCLLocationAccuracyBestForNavigation automatically when the device is plugged. Thanks...

推荐答案

您可以通过 UIDevice class 并检查电池状态以查看是否收费：

You can enable battery monitoring thru the UIDevice class and check the battery state to see if it is being charged:

typedef enum {
    UIDeviceBatteryStateUnknown,
    UIDeviceBatteryStateUnplugged,
    UIDeviceBatteryStateCharging,
    UIDeviceBatteryStateFull,
} UIDeviceBatteryState;

在启用最佳GPS准确度之前，您需要检查充电或充电。

You'll want to check for Charging or Full before enabling best GPS accuracy.

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