您是否打开了位置信息?Android 6.0+设备需要打开位置才能扫描蓝牙LE外设.蓝牙低能耗startScan在Android 6.0上找不到设备

Do you have location turned on? Android 6.0+ devices need location to be turned on in order to scan for Bluetooth LE peripherals. Bluetooth Low Energy startScan on Android 6.0 does not find devices