private async Task UpdateGraph(object sender, EventArgs e)
{
try
{
//fetch latest UV data from service and then update model
int?LocIndex = this.arpansaModel.LocIndexValue;
if (LocIndex == null)
{
//no location has been selected. Nothing to paint.
return;
}
MeasuredLocation curLocation = this.arpansaModel.MeasureLocations[LocIndex.Value];
CurrentLocName.Text = curLocation.SiteName;
ArpansaUVResponse arpansaUV = await this.arpansaService.GetUVData(curLocation.SiteLongitude.Value, curLocation.SiteLatitude.Value);
List <UVIndex> uvIndexes = arpansaService.GenerateUVIndexs();
//update model
ArpansaUVData graphData = new ArpansaUVData(arpansaUV);
graphData.ReferenceUVs = uvIndexes;
this.arpansaModel.ArpansaUVData = graphData;
}
catch (Exception e1)
{
await DisplayAlert("Error", e1.Message, "Ok");
}
}
public ArpansaUVData(ArpansaUVResponse arpansaResponse)
{
this.CurrentDateTime = arpansaResponse.CurrentDateTime;
this.CurrentUVIndex = arpansaResponse.CurrentUVIndex;
this.GraphData = arpansaResponse.GraphData;
this.id = arpansaResponse.id;
this.MaximumUVLevel = arpansaResponse.MaximumUVLevel;
this.MaximumUVLevelDateTime = arpansaResponse.MaximumUVLevelDateTime;
this.TableData = arpansaResponse.TableData;
ReferenceUVs = null;
}
public async Task <ArpansaUVResponse> GetUVData(float longitude, float latitude)
{
DateTime todayDate = DateTime.Now.Date;
string dateString = todayDate.Year.ToString() + "-" + todayDate.Month.ToString() + "-" + todayDate.Day.ToString();
string url = "https://uvdata.arpansa.gov.au/api/uvlevel/";
string getParameters = "longitude=" + longitude.ToString() + "&latitude=" + latitude.ToString() + "&date=" + dateString;
string completeUrl = url + "?" + getParameters;
HttpResponseMessage httpResponse = await this.httpClient.GetAsync(completeUrl, HttpCompletionOption.ResponseContentRead);
string serverResponse = await httpResponse.Content.ReadAsStringAsync();
ArpansaUVResponse arpansaUV = JsonConvert.DeserializeObject <ArpansaUVResponse>(serverResponse);
return(arpansaUV);
}
