public JobsSearchPage(JobsSearchItem jobsSearchItem)
{
InitializeComponent();
jobsSearchItem.UseGeolocation = false;
var viewModel = new JobsSearchViewModel(this, Navigation, jobsSearchItem);
BindingContext = viewModel;
}
public async Task <IReadOnlyList <JobItem> > FetchItems(JobsSearchItem jobSearchItem)
{
var newItems = await App.ApiHelper.GetJobsAsync(jobSearchItem);
items.Clear();
foreach (var item in newItems)
{
items.Add(item);
}
return(items);
}
public JobsViewModel()
{
Title = string.Format("Hello, {0}", App.UserDataStore.IsUserRegistered ? App.UserDataStore.User.Nickname : string.Empty);
JobItems = new ObservableCollection <JobItem>(App.JobsDataStore.GetItems());
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
CurrentSearchItem = new JobsSearchItem(App.UserDataStore.User);
MessagingCenter.Subscribe <JobsSearchItem>(this, MessagingHelper.SearchMessage,
async(x) => await UpdateSearchItem(x));
MessagingCenter.Subscribe <User>(this, MessagingHelper.RegisteredMessage,
async(x) => await UserRegistered(x));
}
public async Task <List <JobItem> > GetJobsAsync(JobsSearchItem jobSearchItem)
{
using (HttpClient client = new HttpClient())
{
var queries = new List <string>
{
string.Format(_apiSettings.ApiSearch, jobSearchItem.SearchTerms),
string.Format(_apiSettings.ApiFullTime, jobSearchItem.FullTime),
};
if (jobSearchItem.UseGeolocation)
{
queries.Add(string.Format(_apiSettings.ApiLat, jobSearchItem.Latitude));
queries.Add(string.Format(_apiSettings.ApiLong, jobSearchItem.Longitude));
}
else
{
queries.Add(string.Format(_apiSettings.ApiLocation, jobSearchItem.Location));
}
var uri = BuildGetUri(queries);
try
{
var response = await client.GetAsync(uri);
if (response != null && response.IsSuccessStatusCode)
{
var resTxt = await response.Content.ReadAsStringAsync();
return(JsonConvert.DeserializeObject <List <JobItem> >(resTxt));
}
else
{
return(null);
}
}
catch (ArgumentNullException argumentError)
{
return(null);
}
catch (HttpRequestException httpError)
{
return(null);
}
};
}
private async Task UpdateSearchItem(JobsSearchItem newSearchItem)
{
CurrentSearchItem = newSearchItem;
await ExecuteLoadItemsCommand();
}
