开启蓝牙 BluetoothAdapter.enable()

开启蓝牙失败

09-19 09:30:46.206 32137-32137/? D/BluetoothAdapterState: make
09-19 09:30:46.221 32137-13806/? I/BluetoothAdapterState: Entering OffState
09-19 09:30:46.247 32137-13806/? D/BluetoothAdapterState: CURRENT_STATE=OFF, MESSAGE = USER_TURN_ON
09-19 09:30:46.247 32137-13806/? I/BluetoothAdapterState: Bluetooth adapter state changed: 10-> 11
09-19 09:30:46.297 32137-13806/? I/BluetoothAdapterState: Entering PendingCommandState State: isTurningOn()=true, isTurningOff()=false
09-19 09:30:51.256 32137-13806/? D/BluetoothAdapterState: CURRENT_STATE=PENDING, MESSAGE = START_TIMEOUT, isTurningOn=true, isTurningOff=false
09-19 09:30:51.256 32137-13806/? E/BluetoothAdapterState: Error enabling Bluetooth
09-19 09:30:51.256 32137-13806/? I/BluetoothAdapterState: Bluetooth adapter state changed: 11-> 10
09-19 09:30:51.257 32137-13806/? I/BluetoothAdapterState: Entering OffState
09-19 09:30:51.773 32137-13806/? D/BluetoothAdapterState: CURRENT_STATE=OFF, MESSAGE = USER_TURN_OFF