/// <summary>
/// Delete a contact from the device.
/// </summary>
/// <param name="id">Contact's id.</param>
/// <returns>Error, null if the contact has been deleted successfully.</returns>
public static string DeleteContact(string id)
{
if (id == null)
{
return(InvalidContactIdMessage);
}
return(NativeProvider.DeleteContact(id));
}
/// <summary>
/// Add new contact into the device.
/// </summary>
/// <param name="contact">Contact's info. Note that the "id" field will be ignored.</param>
/// <returns>Error, null if the contact has been added successfully.</returns>
public static string AddContact(Contact contact)
{
if (contact == null)
{
return(InvalidContactMessage);
}
return(NativeProvider.AddContact(contact));
}
/// <summary>
/// Get all the contacts in the devices.
/// </summary>
/// <param name="callback">
/// Param 1: Error, null means success.
/// Param 2: All contacts on the device, null if there's an error.
/// </param>
public static void GetContacts(Action <string, Contact[]> callback)
{
if (callback == null)
{
return;
}
if (NativeProvider == null)
{
callback(NullContactsProviderMessage, null);
return;
}
NativeProvider.GetContacts(callback);
}
/// <summary>
/// Open native UI to pick up contacts.
/// </summary> /// <param name="callback">
/// Param 1: Error, null if success.
/// Param 2: All selected contacts.
///</param>
public static void PickContact(Action <string, Contact> callback)
{
NativeProvider.PickContact(callback);
}
