Android检测IBeacon热点的方法

2023-09-06 11:24:05 78

IBeacon是BLE的一种，搜索iBeacon基站关键在于设备扫描到的scanRecord数组，识别是否有下面加粗斜体的0215这两个数字。如果有，搜索到的蓝牙设备就是IBeacon。
//AirLocate:
//02011a1aff4c000215#Apple'sfixediBeaconadvertisingprefix
//e2c56db5dffb48d2b060d0f5a71096e0#iBeaconprofileuuid
//0000#major
//0000#minor
//c5#The2'scomplementofthecalibratedTxPower

下面分步骤来实现检测IBeacon热点。

一、获得手机蓝牙控制权限

在manifest文件中写上：

二、检测手机是否支持蓝牙，并获取mBluetoothAdapter对象

if(!getPackageManager().hasSystemFeature(
PackageManager.FEATURE_BLUETOOTH_LE))
{
Toast.makeText(this,R.string.ble_not_supported,Toast.LENGTH_SHORT)
.show();
finish();
}
finalBluetoothManagerbluetoothManager=(BluetoothManager)getSystemService(Context.BLUETOOTH_SERVICE);
mBluetoothAdapter=bluetoothManager.getAdapter();

if(mBluetoothAdapter==null)
{
Toast.makeText(this,R.string.error_bluetooth_not_supported,
Toast.LENGTH_SHORT).show();
finish();
return;
}

三、实现LeScanCallback回调接口

设备每次检测到一个蓝牙设备，就会回调这个接口中的onLeScan()方法，并且传入扫描到的device，rssi，scanRecord等参数。

privateBluetoothAdapter.LeScanCallbackmLeScanCallback=newBluetoothAdapter.LeScanCallback()
{
@Override
publicvoidonLeScan(finalBluetoothDevicedevice,intrssi,
byte[]scanRecord)
{
//在这里处理扫描到的参数
//判断是不是IBeacon设备，做相应的处理。
}
};

四、处理扫描到的参数的方法

publicclassiBeaconClass
{

staticpublicclassiBeacon
{
publicStringname;
publicintmajor;
publicintminor;
publicStringproximityUuid;
publicStringbluetoothAddress;
publicinttxPower;
publicintrssi;
}


/**
*将扫描到的信息传入这个方法
*该方法会判断扫描到的设备是不是IBeacon
*如果是就返回一个IBeacon对象
*如果不是就返回null
*@paramdevice
*@paramrssi
*@paramscanData
*@return
*/
publicstaticiBeaconfromScanData(BluetoothDevicedevice,intrssi,
byte[]scanData)
{

intstartByte=2;
booleanpatternFound=false;
while(startByte<=5)
{
if(((int)scanData[startByte+2]&0xff)==0x02
&&((int)scanData[startByte+3]&0xff)==0x15)
{
//yes!ThisisaniBeacon
patternFound=true;
break;
}elseif(((int)scanData[startByte]&0xff)==0x2d
&&((int)scanData[startByte+1]&0xff)==0x24
&&((int)scanData[startByte+2]&0xff)==0xbf
&&((int)scanData[startByte+3]&0xff)==0x16)
{
iBeaconiBeacon=newiBeacon();
iBeacon.major=0;
iBeacon.minor=0;
iBeacon.proximityUuid="00000000-0000-0000-0000-000000000000";
iBeacon.txPower=-55;
returniBeacon;
}elseif(((int)scanData[startByte]&0xff)==0xad
&&((int)scanData[startByte+1]&0xff)==0x77
&&((int)scanData[startByte+2]&0xff)==0x00
&&((int)scanData[startByte+3]&0xff)==0xc6)
{

iBeaconiBeacon=newiBeacon();
iBeacon.major=0;
iBeacon.minor=0;
iBeacon.proximityUuid="00000000-0000-0000-0000-000000000000";
iBeacon.txPower=-55;
returniBeacon;
}
startByte++;
}

if(patternFound==false)
{
//ThisisnotaniBeacon
returnnull;
}

iBeaconiBeacon=newiBeacon();

iBeacon.major=(scanData[startByte+20]&0xff)*0x100
+(scanData[startByte+21]&0xff);
iBeacon.minor=(scanData[startByte+22]&0xff)*0x100
+(scanData[startByte+23]&0xff);
iBeacon.txPower=(int)scanData[startByte+24];//thisoneissigned
iBeacon.rssi=rssi;

//AirLocate:
//02011a1aff4c000215#Apple'sfixediBeaconadvertisingprefix
//e2c56db5dffb48d2b060d0f5a71096e0#iBeaconprofile
//uuid
//0000#major
//0000#minor
//c5#The2'scomplementofthecalibratedTxPower

//Estimote:
//02011a11072d24bf16
//394b31ba3f486415ab376e5c0f09457374696d6f7465426561636f6e00000000000000000000000000000000000000000000000000

byte[]proximityUuidBytes=newbyte[16];
System.arraycopy(scanData,startByte+4,proximityUuidBytes,0,16);
StringhexString=bytesToHexString(proximityUuidBytes);
StringBuildersb=newStringBuilder();
sb.append(hexString.substring(0,8));
sb.append("-");
sb.append(hexString.substring(8,12));
sb.append("-");
sb.append(hexString.substring(12,16));
sb.append("-");
sb.append(hexString.substring(16,20));
sb.append("-");
sb.append(hexString.substring(20,32));
iBeacon.proximityUuid=sb.toString();

if(device!=null)
{
iBeacon.bluetoothAddress=device.getAddress();
iBeacon.name=device.getName();
}

returniBeacon;
}

privatestaticStringbytesToHexString(byte[]src)
{
StringBuilderstringBuilder=newStringBuilder("");
if(src==null||src.length<=0)
{
returnnull;
}
for(inti=0;i
五、开启蓝牙
mBluetoothAdapter.enable();
六、开始扫描
mBluetoothAdapter.startLeScan(mLeScanCallback);
代码改自链接地址
以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持毛票票。

Android检测IBeacon热点的方法

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