/// <summary>
/// Returns a Boolean value that indicates whether the enumeration of
/// all contacts matching a contact fetch request executed successfully.
/// </summary>
/// <returns><c>true</c>, if contacts with fetch request was enumerated, <c>false</c> otherwise.</returns>
/// <param name="fetchRequest">Fetch request.</param>
/// <param name="error">Error.</param>
/// <param name="block">Block.</param>
public bool EnumerateContactsWithFetchRequest(CNContactFetchRequest fetchRequest, out NSError error, EnumerateContactsWithFetchRequestBlock block)
{
Util.NullArgumentTest(fetchRequest);
Util.NullArgumentTest(block);
IntPtr errorPtr = new IntPtr();
bool success = C.CNContactStore_enumerateContactsWithFetchRequest(
SelfPtr(),
fetchRequest.ToPointer(),
ref errorPtr,
InternalEnumerateContactsBlock,
PInvokeCallbackUtil.ToIntPtr((CNContact contact) =>
{
bool shouldStop;
block(contact, out shouldStop);
return(shouldStop);
}));
error = null;
if (PInvokeUtil.IsNotNull(errorPtr))
{
error = new NSError(errorPtr);
CFFunctions.CFRelease(errorPtr); // balance out ref count of a pointer returned directly from native side.
}
return(success);
}
/// <summary>
/// The designated initializer for a fetch request that uses the specified keys.
/// </summary>
/// <returns>The with keys to fetch.</returns>
/// <param name="keysToFetch">Keys to fetch.</param>
public static CNContactFetchRequest InitWithKeysToFetch(NSArray <NSString> keysToFetch)
{
if (keysToFetch == null)
{
return(null);
}
// This will automatically call alloc on native side before calling the init method.
var ptr = C.CNContactFetchRequest_initWithKeysToFetch(keysToFetch.ToPointer());
CNContactFetchRequest request = null;
if (PInvokeUtil.IsNotNull(ptr))
{
request = new CNContactFetchRequest(ptr);
CFFunctions.CFRelease(ptr);
}
return(request);
}
