protected override async void OnStart()
{
dataModel = new DataModel();
await dataModel.InitAsync();
// Replace the earlier empty MainPage with our real one now that the data model is set up.
homePage = new HomePage();
MainPage = new NavigationPage(homePage);
}
static void Main(string[] args)
{
String message = "Database complete; press any key to exit.";
// The database will be in the DBInitialize\bin\[Debug | Release] folder
string path = "Altostratus.db3";
SQLiteAsyncConnection conn = new SQLiteAsyncConnection(path);
Console.WriteLine("Database initializing.");
// This timer creates progress dots in the console window to show progress.
Timer ticker = new System.Timers.Timer(500);
ticker.Elapsed += (object sender, ElapsedEventArgs e) =>
{
Console.Write('.');
};
ticker.AutoReset = true;
ticker.Enabled = true;
// Because this is a console utility, it doesn't have UI that needs to be responsive.
// Therefore we can use .Wait() on async tasks instead of await. The timer above will
// continue to tick and output dots.
var dbInit = new DataAccessLayer(conn);
dbInit.InitAsync().Wait();
DataModel model = new DataModel(dbInit);
model.InitAsync().Wait();
try
{
model.SyncCategories().Wait();
model.SyncAuthProviders().Wait();
model.SyncItems().Wait();
}
catch (Exception ex)
{
Console.WriteLine("Exception during sync: " + ex.Message);
message = "So sorry, there was a problem: " + ex.Message + "/nPress any key to exit.";
}
ticker.Enabled = false;
Console.WriteLine();
Console.WriteLine(message);
//Wait until a key is pressed to exit.
Console.ReadLine();
}
public ItemViewModel(Item item)
{
dataModel = App.DataModel;
// If we failed to get the item, use a substitute. This could only happen if the user manages to
// invoke an item that's been removed from the database. This shouldn't happen because the ListView
// source is always queried from the database before the cleanup process starts (see SyncItems in
// in sync.cs), and because the only items that get removed are those that should already fall outside
// the limit of the item query. Nevertheless, this check remains for robustness.
if (item.Body == null)
{
item.Body = Resources.Item_RemovedMessage;
Debug.WriteLine("Item page invoked for item that was removed from the database: " + item.Url);
}
this.item = item;
}