/// <summary>
/// Store key with provided value.
/// </summary>
/// <param name="key">Key name.</param>
/// <param name="value">Value to assign to provided key.</param>
public void Set(string key, object value)
{
if (Contains(key))
{
TizenPreference.Remove(key);
}
TizenPreference.Set(key, value);
}
public AuthenticationPage()
{
InitializeComponent();
if (Prefs.Contains("logged_in") && Prefs.Get <bool>("logged_in"))
{
usernameEntry.Text = Prefs.Get <string>("username");
passwordEntry.Text = Prefs.Get <string>("password");
}
}
/// <summary>
/// Returns value assigned to the key.
/// </summary>
/// <param name="key">Key name.</param>
/// <returns>Returns value assigned to requested key. If key does not exist and requested type is string, empty string is returned.
/// If key does not exist and requested type is not a string, default value for requested type is returned</returns>
public T Get <T>(string key)
{
T value = default(T);
if (Contains(key))
{
value = TizenPreference.Get <T>(key);
}
return(value);
}
/// <summary>
/// Returns value assigned to the key.
/// </summary>
/// <param name="key">Key name.</param>
/// <returns>Returns value assigned to requested key. If key doesn't exist and requested type is string, empty string is returned.
/// If key doesn't exist and requested type is not a string, default value for requested type is returned</returns>
public object Get <T>(string key)
{
object value = default(T);
if (Contains(key))
{
value = TizenPreference.Get <T>(key);
}
return(value ?? string.Empty);
}
/// <summary>
/// Returns value assigned to the key.
/// </summary>
/// <param name="key">Key name.</param>
/// <returns>Returns value assigned to requested key. If key does not exist and requested type is string, empty string is returned.
/// If key does not exist and requested type is not a string, default value for requested type is returned</returns>
public object Get <T>(string key)
{
object value = default(T);
if (Contains(key))
{
value = TizenPreference.Get <T>(key);
}
if (typeof(T) == typeof(string) && value == null)
{
value = string.Empty;
}
return(value);
}
private void loadCampaignSettings()
{
new Thread(async() =>
{
HttpResponseMessage response = await Tools.post(Tools.API_GET_CAMPAIGN_SETTINGS, new Dictionary <string, string>()
{
{ "username", Prefs.Get <string>("username") },
{ "password", Prefs.Get <string>("password") },
{ "campaign_id", Prefs.Get <int>("campaign_id").ToString() },
{ "device", "wearable-tizen" }
});
if (response.IsSuccessStatusCode)
{
JsonValue resJson = JsonValue.Parse(await response.Content.ReadAsStringAsync());
ServerResult resCode = (ServerResult)int.Parse(resJson["result"].ToString());
if (resCode == ServerResult.OK)
{
JsonObject campaignSettingsJson = (JsonObject)resJson["campaign_settings"];
foreach (JsonObject dataSourceJson in (JsonArray)campaignSettingsJson["data_sources"])
{
string device = dataSourceJson["device"];
int dataRate = dataSourceJson["data_rate"];
if (device.Equals("wearable-tizen"))
{
dataRateMap[dataSourceJson["source_id"]] = dataSourceJson["data_rate"];
sensorMap[dataSourceJson["source_id"]].Interval = Math.Max(dataSourceJson["data_rate"], Tools.MINIMUM_SENSOR_SAMPLING_INTERVAL);
}
}
log($"Campaign settings loaded! ({dataRateMap.Count} sources set up)");
}
else
{
Toast.DisplayText("Failed to load campaign settings! Please refer to the campaign creator!");
Environment.Exit(0);
}
}
else
{
Toast.DisplayText("Failed to load campaign settings! Please refer to the campaign creator!");
Environment.Exit(0);
}
}).Start();
}
public void SignInClicked(object sender, EventArgs e)
{
IsEnabled = false;
new Thread(async() =>
{
HttpResponseMessage response = await Tools.post(Tools.API_AUTHENTICATE, new Dictionary <string, string>
{
{ "username", usernameEntry.Text },
{ "password", passwordEntry.Text }
});
if (response.IsSuccessStatusCode)
{
JsonValue resJson = JsonValue.Parse(await response.Content.ReadAsStringAsync());
if ((ServerResult)(int)resJson["result"] == ServerResult.OK)
{
Prefs.Set("logged_in", true);
Prefs.Set("username", usernameEntry.Text);
Prefs.Set("password", passwordEntry.Text);
Prefs.Set("recruited", (bool)resJson["recruited"]);
Prefs.Set("campaign_id", (int)resJson["campaign_id"]);
Device.BeginInvokeOnMainThread(() =>
{
IsEnabled = true;
if (Prefs.Get <bool>("recruited"))
{
Navigation.PushModalAsync(new MainPage());
}
else
{
Toast.DisplayText($"You haven't registered for any campaign yet, please register first!");
}
});
}
else
{
Toast.DisplayText("Failed to log in, please try again!");
IsEnabled = true;
}
}
}).Start();
}
/// <summary>
/// Checks if provided key is stored.
/// </summary>
/// <param name="key">Key name to check.</param>
/// <returns>Returns true if key is stored. False otherwise.</returns>
public bool Contains(string key)
{
return(TizenPreference.Contains(key));
}