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Made the iBeacon check more generic

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Alexandros Schillings
2014-03-20 18:54:03 +00:00
parent 680a630244
commit 9cd3b20899
1 changed files with 12 additions and 10 deletions
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22
library/src/uk/co/alt236/bluetoothlelib/util/IBeaconUtils.java
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@@ -1,14 +1,14 @@
package uk.co.alt236.bluetoothlelib.util;
import uk.co.alt236.bluetoothlelib.device.BluetoothLeDevice;
import uk.co.alt236.bluetoothlelib.device.adrecord.AdRecord;
public class IBeaconUtils {
private static final double DISTANCE_THRESHOLD_WTF = 0.0;
private static final double DISTANCE_THRESHOLD_IMMEDIATE = 0.5;
private static final double DISTANCE_THRESHOLD_NEAR = 3.0;
private static final byte[] SCAN_RECORD_PREFIX_IBEACON_1 = new byte[]{0x02, 0x01, 0x1A, 0x1A, (byte) 0xFF, 0x4C, 0x00, 0x02, 0x15};
private static final byte[] SCAN_RECORD_PREFIX_IBEACON_2 = new byte[]{0x02, 0x01, 0x06, 0x1A, (byte) 0xFF, 0x4C, 0x00, 0x02, 0x15};
private static final byte[] MANUFACTURER_DATA_IBEACON_PREFIX = new byte[]{0x4C, 0x00, 0x02, 0x15};
public static IBeaconDistanceDescriptor getDistanceDescriptor(double accuracy){
if(accuracy < DISTANCE_THRESHOLD_WTF){
@@ -57,21 +57,23 @@ public class IBeaconUtils {
* @return
*/
public static boolean isThisAnIBeacon(BluetoothLeDevice device){
return isThisAnIBeacon(device.getScanRecord());
return isThisAnIBeacon(
device.getAdRecordStore().getRecordDataAsString(AdRecord.TYPE_MANUFACTURER_SPECIFIC_DATA).getBytes());
}
/**
* Ascertains whether a scanRecord bytearray belongs to an iBeacon;
* Ascertains whether a Manufacturer Data byte array belongs to an iBeacon;
*
* @param scanRecord a Bluetooth LE device's scanRecord.
* @param scanRecord a Bluetooth LE device's manufacturerData.
* @return
*/
public static boolean isThisAnIBeacon(byte[] scanRecord){
if(ByteUtils.doesArrayBeginWith(scanRecord, SCAN_RECORD_PREFIX_IBEACON_1)){
return true;
}
public static boolean isThisAnIBeacon(byte[] manufacturerData){
if(manufacturerData == null){return false;}
if(ByteUtils.doesArrayBeginWith(scanRecord, SCAN_RECORD_PREFIX_IBEACON_2)){
// An iBeacon record must be at least 25 chars long
if(!(manufacturerData.length >= 25)){return false;}
if(ByteUtils.doesArrayBeginWith(manufacturerData, MANUFACTURER_DATA_IBEACON_PREFIX)){
return true;
}