Android Bluetooth蓝牙名称修改

2024-07-04 19:53| 来源: 网络整理| 查看: 265

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.sh ro.build.version.sdk=22 ro.build.version.codename=REL ro.build.version.all_codenames=REL ro.build.version.release=5.1.1 ro.build.date=2019年 07月 23日星期二 00:15:32 CST ro.build.date.utc=1563812132 ro.build.type=userdebug ro.build.flavor=s700_cb7-userdebug ro.product.model=S700 ro.product.board=s700_cb7 ro.board.platform=S700 # ro.build.product is obsolete; use ro.product.device ro.build.product=s700_cb7 # end build properties # from device/actions/s700_cb7/system.prop

查看 android/build/tools/buildinfo.sh

#!/bin/bash echo "# 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"

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