/** @brief : call when tag infos are recieved
*/
private async void Tag_Received(BluetoothLEAdvertisementWatcher received, BluetoothLEAdvertisementReceivedEventArgs args)
{
//show only connectable tags
if (args.AdvertisementType == BluetoothLEAdvertisementType.ConnectableDirected || args.AdvertisementType == BluetoothLEAdvertisementType.ConnectableUndirected)
{
//get tag infos
Taginfo taginfo = new Taginfo();
taginfo.TagMac = args.BluetoothAddress.ToString("X");
taginfo.TagName = args.Advertisement.LocalName;
taginfo.TagRssi = args.RawSignalStrengthInDBm;
//get tag datas
string datasection = String.Empty;
foreach (BluetoothLEAdvertisementDataSection section in args.Advertisement.DataSections)
{
var data = new byte[section.Data.Length];
using (var reader = DataReader.FromBuffer(section.Data))
{
reader.ReadBytes(data);
datasection = String.Format("{0}", BitConverter.ToString(data));
taginfo.TagDataRaw.Add(datasection);
}
}
taginfo.getData();
if (taginfo.TagName.Equals(String.Empty) == false)
{
//add new tag
if (this.tagList.ContainsKey(taginfo.TagMac) == false)
{
this.tagList.Add(taginfo.TagMac, taginfo);
if (Filter(taginfo))
{
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
tagColl.Add(taginfo);
});
}
}
//update existing tag infos
else if (tagList.ContainsValue(taginfo) == false)
{
await this.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () =>
{
IEnumerable <Taginfo> existing = tagColl.Where(x => x.TagMac == taginfo.TagMac);
int a = tagColl.IndexOf(existing.FirstOrDefault());
if (Filter(taginfo))
{
if (a >= 0 && a < tagColl.Count())
{
tagColl[a].update(taginfo);
}
}
this.tagList[taginfo.TagMac].update(taginfo);
});
}
}
}
}
/** @brief : filter tag mac adress or name
* @return : true if tag matches false otherwise
*/
private bool Filter(Taginfo taginfo)
{
if (taginfo.TagMac.ToLower().Contains(filter.ToLower()) || taginfo.TagName.ToLower().Contains(filter.ToLower()))
{
return(true);
}
return(false);
}
/** @brief : update filter for the search
* update shown tags depending on the search
*/
private void TxtSearch_TextChanged(object sender, TextChangedEventArgs e)
{
filter = txtSearch.Text;
this.tagColl.Clear();
//update shown tags corresponding to search text
foreach (KeyValuePair <string, Taginfo> pair in this.tagList)
{
Taginfo taginfo = new Taginfo();
taginfo = pair.Value;
if (Filter(taginfo))
{
this.tagColl.Add(taginfo);
}
}
}
/** @brief : update showned values
* @param [in] taginfo : Taginfo with updated values
*/
public void update(Taginfo taginfo)
{
this.TagName = taginfo.TagName;
this.TagRssi = taginfo.TagRssi;
this.TagData = taginfo.TagData;
}
