Android(安卓)Bluetooth蓝牙名称修改

一、蓝牙名称获取

AdapterService.java (packages\apps\bluetooth\src\com\android\bluetooth\btservice)

    static final int BT_PROPERTY_BDNAME = 0x01;    static final int BT_PROPERTY_BDADDR = 0x02;    public void onCreate() {             getAdapterPropertyNative(AbstractionLayer.BT_PROPERTY_BDADDR);        getAdapterPropertyNative(AbstractionLayer.BT_PROPERTY_BDNAME);        int ret = sBluetoothInterface->get_adapter_property((bt_property_type_t) type);    bluetoothInterface,    get_adapter_property,     btif_get_adapter_property(type);     btif_transfer_context(execute_storage_request,                 BTIF_CORE_STORAGE_ADAPTER_READ,  (char*)&req, sizeof(btif_storage_req_t), NULL);  // call execute_storage_request            case BTIF_CORE_STORAGE_ADAPTER_READ:                btif_storage_get_adapter_property(&prop);                btif_dm_get_adapter_property(property);                case BT_PROPERTY_BDNAME:         bt_bdname_t *bd_name = (bt_bdname_t*)prop->val;         strcpy((char *)bd_name->name, btif_get_default_local_name()); // 获取名字                HAL_CBACK(bt_hal_cbacks, adapter_properties_cb, status, 1, &prop); //回到到应用层

下面我们主要看下名字获取这部分代码：
btif_dm.c (external\bluetooth\bluedroid\btif\src)

static char btif_default_local_name[DEFAULT_LOCAL_NAME_MAX+1] = {     '\0'};static char* btif_get_default_local_name() {         if (btif_default_local_name[0] == '\0')    {             int max_len = sizeof(btif_default_local_name) - 1;        if (BTM_DEF_LOCAL_NAME[0] != '\0')        {                 strncpy(btif_default_local_name, BTM_DEF_LOCAL_NAME, max_len);        }        else        {                 char prop_model[PROPERTY_VALUE_MAX];            property_get(PROPERTY_PRODUCT_MODEL, prop_model, "");            strncpy(btif_default_local_name, prop_model, max_len);        }        btif_default_local_name[max_len] = '\0';    }    return btif_default_local_name;}

二、蓝牙名称设置

HAL_CBACK(bt_hal_cbacks, adapter_properties_cb, status, 1, &prop); static bt_callbacks_t sBluetoothCallbacks    adapter_properties_callback,     callbackEnv->CallVoidMethod(sJniCallbacksObj,   method_adapterPropertyChangedCallback, types,                          props);     mAdapterProperties.adapterPropertyChangedCallback(types, val);     case AbstractionLayer.BT_PROPERTY_BDNAME:              mName = new String(val);              intent = new Intent(BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED);              intent.putExtra(BluetoothAdapter.EXTRA_LOCAL_NAME, mName);              intent.addFlags(Intent.FLAG_RECEIVER_REGISTERED_ONLY_BEFORE_BOOT);              mService.sendBroadcastAsUser(intent, UserHandle.ALL, mService.BLUETOOTH_PERM);

BluetoothSettings.java (packages\apps\settings\src\com\android\settings\bluetooth)

  private final BroadcastReceiver mReceiver = new BroadcastReceiver() {             @Override        public void onReceive(Context context, Intent intent) {                 final String action = intent.getAction();            final int state =                intent.getIntExtra(BluetoothAdapter.EXTRA_STATE, BluetoothAdapter.ERROR);            if (action.equals(BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED)) {                     updateDeviceName(context);            }            if (state == BluetoothAdapter.STATE_ON) {                     mInitiateDiscoverable = true;            }        }        private void updateDeviceName(Context context) {                 if (mLocalAdapter.isEnabled() && mMyDevicePreference != null) {                     mMyDevicePreference.setSummary(context.getResources().getString(                            R.string.bluetooth_is_visible_message, mLocalAdapter.getName()));            }        }    };    public BluetoothSettings() {             super(DISALLOW_CONFIG_BLUETOOTH);        mIntentFilter = new IntentFilter(BluetoothAdapter.ACTION_LOCAL_NAME_CHANGED);    }    public void onResume() {             getActivity().registerReceiver(mReceiver, mIntentFilter);    }

三、蓝牙名称修改

1) 修改btif_default_local_name初始值：

static char btif_default_local_name[DEFAULT_LOCAL_NAME_MAX+1] = "";

2) 修改BTM_DEF_LOCAL_NAME的值

// Bt_target.h (external\bluetooth\bluedroid\include)#ifdef HAS_BDROID_BUILDCFG#include "bdroid_buildcfg.h"#endif#ifndef BTM_DEF_LOCAL_NAME#define BTM_DEF_LOCAL_NAME      ""#endif

在bt_target.h文件的包含了bdroid_buildcfg.h 头文件.

// android/device/generic/common/bluetooth/bdroid_buildcfg.h #ifndef _BDROID_BUILDCFG_H#define _BDROID_BUILDCFG_H#define BTM_DEF_LOCAL_NAME   "Android Bluedroid"#endif

3) 修改ro.product.model 属性值
out/target/product/s700_cb7/system/build.prop

# begin build properties# autogenerated by buildinfo.shro.build.version.sdk=22ro.build.version.codename=RELro.build.version.all_codenames=RELro.build.version.release=5.1.1ro.build.date=2019年 07月 23日 星期二 00:15:32 CSTro.build.date.utc=1563812132ro.build.type=userdebugro.build.flavor=s700_cb7-userdebugro.product.model=S700ro.product.board=s700_cb7ro.board.platform=S700# ro.build.product is obsolete; use ro.product.devicero.build.product=s700_cb7# end build properties# from device/actions/s700_cb7/system.prop

查看 android/build/tools/buildinfo.sh

#!/bin/bashecho "# begin build properties"echo "# autogenerated by buildinfo.sh"echo "ro.build.id=$BUILD_ID"#echo "ro.build.display.id=$BUILD_DISPLAY_ID"echo "ro.build.version.incremental=$BUILD_NUMBER"echo "ro.build.version.sdk=$PLATFORM_SDK_VERSION"echo "ro.build.version.codename=$PLATFORM_VERSION_CODENAME"echo "ro.build.version.all_codenames=$PLATFORM_VERSION_ALL_CODENAMES"echo "ro.build.version.release=$PLATFORM_VERSION"echo "ro.build.date=`date`"echo "ro.build.date.utc=`date +%s`"echo "ro.build.type=$TARGET_BUILD_TYPE"echo "ro.build.user=$USER"echo "ro.build.host=`hostname`"echo "ro.build.tags=$BUILD_VERSION_TAGS"echo "ro.build.flavor=$TARGET_BUILD_FLAVOR"echo "ro.product.model=$PRODUCT_MODEL"#echo "ro.product.brand=$PRODUCT_BRAND"#echo "ro.product.name=$PRODUCT_NAME"#echo "ro.product.device=$TARGET_DEVICE"echo "ro.product.board=$TARGET_BOOTLOADER_BOARD_NAME"

一、蓝牙名称获取

二、蓝牙名称设置

三、蓝牙名称修改

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