android 蓝牙 获取蓝牙地址名字

蓝牙是一种支持设备之间短距离通讯的无限电技术（电话，笔记本，耳机）

BluetoothAdapter 本地蓝牙适配器

首先需要添加蓝牙权限：

<uses-permission android:name="android.permission.BLUETOOTH"/>

<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>

然后再acitivity

//获取本地蓝牙的适配器

BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();

//判断蓝牙功能是否存在

if (mBluetoothAdapter == null) {

showToest("该设备不支持蓝牙");

return;

}

//获取名字 MAC地址

String name = mBluetoothAdapter.getName();

String address = mBluetoothAdapter.getAddress();

Log.i(TAG, "蓝牙名: "+name+"mac地址:"+address);

//获取蓝牙的状态

int state = mBluetoothAdapter.getState();

switch (state){

case BluetoothAdapter.STATE_ON:

showToest("蓝牙已经打开");

Log.i(TAG, "蓝牙已经打开 ");

break;

case BluetoothAdapter.STATE_OFF:

showToest("蓝牙已经关闭");

Log.i(TAG, "蓝牙已经关闭 ");

break;

case BluetoothAdapter.STATE_TURNING_OFF:

showToest("蓝牙正在关闭");

Log.i(TAG, "蓝牙正在关闭 ");

break;

case BluetoothAdapter.STATE_TURNING_ON:

showToest("蓝牙正在打开");

Log.i(TAG, "蓝牙正在打开 ");

break;

default:

break;

}

//判断蓝牙是否已经打开

if (mBluetoothAdapter.isEnabled()){

showToest("蓝牙已经处于打开状态");

//关闭蓝牙

Boolean isClose=mBluetoothAdapter.disable();

Log.i(TAG, "蓝牙是否关闭"+isClose);

}else{

// Boolean isopen = mBluetoothAdapter.enable();

// showToest("蓝牙的状态"+isopen);

//调用系统API打开

Intent intent=new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE);

startActivityForResult(intent,RESULE_OPEN);

}

protected void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if(RESULE_OPEN==0x01){
         if(resultCode==RESULT_CANCELED){
             showToest("请求失败");
         }else{
             showToest("请求成功...");
         }
    }
}

public void  showToest(String mgs){
    Toast.makeText(MainActivity.this,mgs,Toast.LENGTH_LONG).show();
}