public ItemsViewModel()
{
Title = "Home";
GlucItems = new ObservableCollection <GlucoseEntry>();
RecentGlucItems = new ObservableCollection <GlucoseEntry>();
ExItems = new ObservableCollection <ExerciseEntry>();
RecentExItems = new ObservableCollection <ExerciseEntry>();
FoodItems = new ObservableCollection <FoodEntry>();
RecentFoodItems = new ObservableCollection <FoodEntry>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
MessagingCenter.Subscribe <GlucoseEntryPage, GlucoseEntry>(this, "AddItem", async(obj, item) =>
{
var newGlucItem = item as GlucoseEntry;
GlucItems.Add(newGlucItem);
await GlucDataStore.AddItemAsync(newGlucItem);
});
MessagingCenter.Subscribe <ExerciseEntryPage, ExerciseEntry>(this, "AddItem", async(obj, item) =>
{
var newExItem = item as ExerciseEntry;
ExItems.Add(newExItem);
await ExDataStore.AddItemAsync(newExItem);
});
MessagingCenter.Subscribe <FoodEntryPage, FoodEntry>(this, "AddItem", async(obj, item) =>
{
var newFoodItem = item as FoodEntry;
FoodItems.Add(newFoodItem);
await FoodDataStore.AddItemAsync(newFoodItem);
});
}
async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
GlucItems.Clear();
var glucItems = await GlucDataStore.GetItemsAsync(true);
foreach (var item in glucItems)
{
GlucItems.Add(item);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
try
{
PopulateEntries();
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
async Task ExecuteLoadItemsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
GlucItems.Clear();
RecentGlucItems.Clear();
var glucItems = await GlucDataStore.GetItemsAsync(true);
foreach (var item in glucItems)
{
GlucItems.Add(item);
}
if (GlucItems.Count > 10)
{
for (int i = GlucItems.Count - 10; i < GlucItems.Count; i++)
{
RecentGlucItems.Add(GlucItems[i]);
}
}
else
{
foreach (GlucoseEntry entry in GlucItems)
{
RecentGlucItems.Add(entry);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
try
{
ExItems.Clear();
RecentExItems.Clear();
var exItems = await ExDataStore.GetItemsAsync(true);
foreach (var item in exItems)
{
ExItems.Add(item);
}
if (ExItems.Count > 10)
{
for (int i = ExItems.Count - 10; i < ExItems.Count; i++)
{
RecentExItems.Add(ExItems[i]);
}
}
else
{
foreach (ExerciseEntry entry in ExItems)
{
RecentExItems.Add(entry);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
try
{
FoodItems.Clear();
RecentFoodItems.Clear();
var foodItems = await FoodDataStore.GetItemsAsync(true);
foreach (var item in foodItems)
{
FoodItems.Add(item);
}
if (FoodItems.Count > 10)
{
for (int i = FoodItems.Count - 10; i < FoodItems.Count; i++)
{
RecentFoodItems.Add(FoodItems[i]);
}
}
else
{
foreach (FoodEntry entry in FoodItems)
{
RecentFoodItems.Add(entry);
}
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}