蓝牙状态机初始化时PowerOff的,从上面的BluetoothService的enable函数中USER_TURN_ON命令。从上面代码中可以看出蓝牙状态机在接收到USER_TURN_ON后,首先就像蓝牙适配器广播蓝牙正处于STATE_TRUNING_ON的状态,蓝牙的适配器的蓝牙状态有四个: 分别是,state_off(10),state_turning_on(11),state_on(12),state_turning_...
所以在OffState处理BLE_TURN_ON消息,直接转移到TurningBleOnState状态。 private class OffState extends BaseAdapterState { @Override public boolean processMessage(Message msg) { switch (msg.what) { case BLE_TURN_ON: transitionTo(mTurningBleOnState); break; } return true; } } 1. 2. 3. 4. 5...
"CURRENT_STATE=OFF, MESSAGE = USER_TURN_ON"); notifyAdapterStateChange(BluetoothAdapter.STATE_TURNING_ON); mPendingCommandState.setTurningOn(true); transition
2、在BluetoothManagerService调用IBluetooth接口时,实际上是在AdapterServiceBinder端来处理。 3、IBluetooth.enable -> AdapterServiceBinder->enable -> BluetoothManagerService.enable BluetoothManagerService初始化了一个蓝牙状态机AdapterState实例,mAdapterStateMachine,调用enable是给状态机发一个消息AdapterState.USER_TU...
To use Android Auto, you must first connect your phone to your vehicle. Connect Through USB Port Connect Wirelessly Connect Through USB Port Your vehicle must be parked the first time you connect. Using your phone’s cable, connect your phone to the vehicle’s USB dataEnsure you are using ...
1.Clear Google cache on your phone https://www.youtube.com/shorts/AOKclbaR8tg 2.Clear Android Auto cache 3.Turn on wireless Android Auto option 4.Reset the CP2A If the problem is still not resolved, please submit help below Problem not resolved?
Step 3. Connect and start. The connection between Android Auto and the vehicle is possible using a Bluetooth or USB cable, and the connection method may differ depending on the vehicle and manufacturer. Check if Android Auto is displayed on the display. ...
I have a problem with my brand new Nubia Z70 Ultra: the device turns the internet connection off when i turn the screen off. This happens when connected to Android auto, not when in normal use. I have no energy saving options turned on, i cant find the right option or solution. Anyon...
mBluetooth.enable()){Slog.e(TAG,"IBluetooth.enable() returned false");}}else{if(!mBluetooth.enableNoAutoConnect()){Slog.e(TAG,"IBluetooth.enableNoAutoConnect() returned false");}}}catch(RemoteException e){Slog.e(TAG,"Unable to call enable()",e);}}}finally{mBluetoothLock.writeLock()...
//打开蓝牙的时候会间接调用到handleEnable方法privatevoidhandleEnable(boolean quietMode){mQuietEnable=quietMode;try{mBluetoothLock.writeLock().lock();if((mBluetooth==null)&&(!mBinding)){//绑定bluetooth app Serviceif(!doBind(i,mConnection,Context.BIND_AUTO_CREATE|Context.BIND_IMPORTANT,UserHandle.CU...