android 蓝牙开关设置

frameworks/base/packages/SettingsProvider/res/values/defaults.xml

<bool name="def_bluetooth_on">false</bool>

将 def_bluetooth_on 的值设为false（系统默认开启值）

adb动态设置
关闭：adb shell settings put global bluetooth_on 0
打开：adb shell settings put global bluetooth_on 1
查询：adb shell settings get global bluetooth_on
打开蓝牙
am start -a android.bluetooth.adapter.action.REQUEST_ENABLE
查看蓝牙状态
service list | grep bluetooth
dumpsys package com.android.bluetooth | grep “version”
dumpsys bluetooth_manager
logcat -s BluetoothManager