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Merge pull request #4 from kobush/master
Adds ProximityBeaconFrame. Thanks for the pull request and the high quality code! Sorry that it took quite some time, but there should be no issues with the code that I can see! Will update the lib on NuGet + the example app in the store as soon as possible.
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,115 @@ | ||
| using System; | ||
|
|
||
| namespace UniversalBeaconLibrary.Beacon | ||
| { | ||
| public class ProximityBeaconFrame : BeaconFrameBase | ||
| { | ||
| public const ushort CompanyId = 0x004C; | ||
| public const byte DataType = 0x02; | ||
| public const byte DataLength = 0x15; | ||
|
|
||
| private Guid _uuid; | ||
| private ushort _major; | ||
| private ushort _minor; | ||
| private sbyte _txPower; | ||
|
|
||
| public ProximityBeaconFrame(byte[] payload) | ||
| : base(payload) | ||
| { | ||
| ParsePayload(); | ||
| } | ||
|
|
||
| public string UuidAsString => Uuid.ToString("D"); | ||
|
|
||
| public Guid Uuid | ||
| { | ||
| get { return _uuid; } | ||
| set | ||
| { | ||
| if (_uuid == value) return; | ||
| _uuid = value; | ||
| OnPropertyChanged(); | ||
| OnPropertyChanged(nameof(UuidAsString)); | ||
| } | ||
| } | ||
|
|
||
| public string MajorAsString => Major.ToString("x4"); | ||
|
|
||
| public ushort Major | ||
| { | ||
| get { return _major; } | ||
| set | ||
| { | ||
| if (_major == value) return; | ||
| _major = value; | ||
| OnPropertyChanged(); | ||
| OnPropertyChanged(nameof(MajorAsString)); | ||
| } | ||
| } | ||
|
|
||
| public string MinorAsString => Minor.ToString("x4"); | ||
|
|
||
| public ushort Minor | ||
| { | ||
| get { return _minor; } | ||
| set | ||
| { | ||
| if (_minor == value) return; | ||
| _minor = value; | ||
| OnPropertyChanged(); | ||
| OnPropertyChanged(nameof(MinorAsString)); | ||
| } | ||
| } | ||
|
|
||
| public sbyte TxPower | ||
| { | ||
| get { return _txPower; } | ||
| set | ||
| { | ||
| if (_txPower == value) return; | ||
| _txPower = value; | ||
| OnPropertyChanged(); | ||
| } | ||
| } | ||
|
|
||
| private void ParsePayload() | ||
| { | ||
| var dataType = Payload[0]; | ||
| var dataLength = Payload[1]; | ||
|
|
||
| if (dataType != DataType || dataLength != DataLength) | ||
| throw new InvalidOperationException(); | ||
|
|
||
| // need to swap to big-endian | ||
| var uuidBytes = new byte[16]; | ||
| if (BitConverter.IsLittleEndian) | ||
| { | ||
| Array.ConstrainedCopy(Payload, 2, uuidBytes, 0, 16); | ||
| Array.Reverse(uuidBytes, 0, 4); | ||
| Array.Reverse(uuidBytes, 4, 2); | ||
| Array.Reverse(uuidBytes, 6, 2); | ||
| } | ||
| Uuid = new Guid(uuidBytes); | ||
|
|
||
| var majorBytes = new byte[2]; | ||
| Array.ConstrainedCopy(Payload, 18, majorBytes, 0, 2); | ||
| if (BitConverter.IsLittleEndian) | ||
| Array.Reverse(majorBytes); | ||
| Major = BitConverter.ToUInt16(majorBytes,0); | ||
|
|
||
| var minorBytes = new byte[2]; | ||
| Array.ConstrainedCopy(Payload, 20, minorBytes, 0, 2); | ||
| if (BitConverter.IsLittleEndian) | ||
| Array.Reverse(minorBytes); | ||
| Minor = BitConverter.ToUInt16(minorBytes, 0); | ||
|
|
||
| TxPower = (sbyte) Payload[22]; | ||
| } | ||
|
|
||
| public override void Update(BeaconFrameBase otherFrame) | ||
| { | ||
| base.Update(otherFrame); | ||
| ParsePayload(); | ||
| } | ||
| } | ||
| } |
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