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Does someone know a way to read the battery percentage of a device that connected to the iPhone using the lightning port using Swift? If someone knows it impossible I would be really grateful as well. And if it is indeed impossible should I do it using Bluetooth?

Thank you very much for all the helpers...

user3763577
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2 Answers2

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If anything, it would be via the:

https://developer.apple.com/library/prerelease/ios/documentation/ExternalAccessory/Reference/ExternalAccessoryFrameworkReference/index.html

And if the device supports battery level than probably the UIDeviceBatteryState and UIDeviceBatteryStateDidChangeNotification would be another good place to start.

Adrian Sluyters
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There is no 'standardized' way for this - if your Accessory supports this via its proprietary protocol, ok - else you can't get this

Daij-Djan
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