Android5.1蓝牙电话分析及demo

参考：android源码蓝牙协议分析

1.重要目录及文件

1.manager

frameworks/base/core/java/android/bluetooth/BluetoothHeadsetClient.java

frameworks/base/core/java/android/bluetooth/IBluetoothHeadsetClient.aidl

2.Bluethooth.apk

packages/apps/Bluetooth/src/com/android/bluetooth/hfp //蓝牙电话服务(免提)

packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient //蓝牙耳机服务

packages/apps/Bluetooth/res/values/config.xml //蓝牙协议配置文件，想用哪个配置为true即可

packages/apps/Bluetooth/src/com/android/bluetooth/btservice/Config.java //读取蓝牙协议xml配置文件

packages/apps/Bluetooth/src/com/android/bluetooth/btservice/AdapterService.java //启动蓝牙等服务

3.service

//manager跨进程调用HeadsetClientStateMachine服务

packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient/HeadsetClientService.java

//HeadsetClientStateMachine服务通过jni调用C/C++通信

packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient/HeadsetClientStateMachine.java

4.hal

external/bluetooth/bluedroid/btif/src/bluetooth.c

struct hw_module_t HAL_MODULE_INFO_SYM = {

.id = BT_HARDWARE_MODULE_ID,

.methods = &bt_stack_module_methods

};

5.kernel

kernel/net/rfkill/rfkill.c

module_init(rfkill_xx_init); |

2.蓝牙耳机服务：HeadsetClientService的connect()调用流程

<1>frameworks/base/core/java/android/bluetooth/BluetoothHeadsetClient.java

privateIBluetoothHeadsetClientmService;

publicbooleanconnect(BluetoothDevicedevice) {

return mService.connect(device);

}

<2>packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient/HeadsetClientService.java

import android.bluetooth.IBluetoothHeadsetClient;

import android.bluetooth.BluetoothHeadsetClient;

private static class BluetoothHeadsetClientBinder extendsIBluetoothHeadsetClient.Stub implementsIProfileServiceBinder {

private HeadsetClientService mService;

public BluetoothHeadsetClientBinder(HeadsetClientService svc) {

mService = svc;//HeadsetClientService svc

}

private HeadsetClientService getService() {

return mService;//mService = svc

}

@Override

public boolean connect(BluetoothDevice device) {

HeadsetClientService service = getService();

return service.connect(device);//HeadsetClientService service

}}

public boolean connect(BluetoothDevice device) {

mStateMachine.sendMessage(HeadsetClientStateMachine.CONNECT, device);//发送消息：CONNECT

return true;

}

<3>packages/apps/Bluetooth/src/com/android/bluetooth/hfpclient/HeadsetClientStateMachine.java

private native booleanconnectNative(byte[] address);

@Override

public synchronized boolean processMessage(Message message){

switch (message.what){

case CONNECT:

if (!connectNative(getByteAddress(device))){

...

}

<4>packages/apps/Bluetooth/jni/com_android_bluetooth_hfpclient.cpp

static jbooleanconnectNative(JNIEnv *env, jobject object, jbyteArray address) {

status =sBluetoothHfpClientInterface->connect((bt_bdaddr_t *)addr)

}

<5>external/bluetooth/bluedroid/btif/src/btif_hf_client.c

static const bthf_client_interface_t bthfClientInterface = {

sizeof(bthf_client_interface_t),

.init = init,

.connect =connect,

...

}

<5>kernel/net/rfkill/input.c

static struct input_handler rfkill_handler = {

...

.connect =rfkill_connect,

};

3.拨打电话demo

private BluetoothHeadsetClient mHfpClient;

BluetoothAdapter bluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

bluetoothAdapter.getProfileProxy(this, mHandsFreeServiceListener, BluetoothProfile.HEADSET_CLIENT);

private BluetoothProfile.ServiceListener mHandsFreeServiceListener = new BluetoothProfile.ServiceListener(){

@Override

public void onServiceConnected(int profile, BluetoothProfile proxy) {

if(profile == BluetoothProfile.HEADSET_CLIENT){

Log.e(TAG,"HEADSET_CLIENT proxy ========= "+ String.valueOf(proxy));

mHfpClient = (BluetoothHeadsetClient)proxy;

List<BluetoothDevice> devices = mHfpClient.getConnectedDevices();

for(BluetoothDevice device : devices){

mHfpClient.dial(device_test,"10086");//拨号

}

@Override

public void onServiceDisconnected(int profile){

if (profile == BluetoothProfile.HEADSET_CLIENT)) {

mHfpClient = null;

}

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