async void Init()
{
try
{
var info = await bookRepository.SearchBookInfo(isbn);
Info.IsLoading = false;
if (info == null)
{
Info.BindingContext = new { Title = "本の情報が見つかりませんでした" };
return;
}
Info.BindingContext = info;
if (!BookInfo.GetAll().ToList().Contains(info))
{
info.Write();
}
var favoritesTask = bookRepository.SearchInFavorites(isbn, new Progress <List <SearchResult> >(list =>
{
this.list.Favorites = list;
}));
var location = await CrossGeolocator.Current.GetLastKnownLocationAsync();
if (location == null)
{
location = await CrossGeolocator.Current.GetPositionAsync(TimeSpan.FromSeconds(5));
}
var locationTask = Task.Delay(1);
if (location != null)
{
locationTask = bookRepository.SearchInLocation(isbn, location.Longitude, location.Latitude, new Progress <List <SearchResult> >(list =>
{
this.list.Nearby = list;
}));
}
await Task.WhenAll(favoritesTask, locationTask);
}
catch (Plugin.Geolocator.Abstractions.GeolocationException ex)
{
await DisplayAlert("エラー", "位置情報を取得できませんでした", "了解");
}
catch (Exception ex)
{
await DisplayAlert("エラー", "データを取得できませんでした", "了解");
}
}