CallDirectory Handler extension error while using Realm - ios

Question

I'm using Callkit extension to identify the numbers. All my contacts (around 30k+) are stored in Realm.
I have stored the Realm file in AppGroup which can be shared between my app and its extensions.
I get the error when I try to reload the extension.
Error Domain=com.apple.CallKit.error.calldirectorymanager Code=7
"(null)"
When this error occurred , the setting for Call Blocking & Identification for my app shows a spinner (while other apps show the switch to toggle)
- (void)applicationDidBecomeActive:(UIApplication *)application
{
[[CXCallDirectoryManager sharedInstance] reloadExtensionWithIdentifier:#"com.j2x.handheldcontact.CallerID" completionHandler:^(NSError *error){
if(error) {
NSLog(#"CallerID - refresh failed. error is %#",[error description]);
}
}];
}
I see that the error happens only when I try to use access the Realm in the app group directory.
In my extension subclass:
- (void)beginRequestWithExtensionContext:(CXCallDirectoryExtensionContext *)context
{
context.delegate = self;
NSString *appGroupId = #"group.com.j2x.handheldcontact.CallerID";
NSURL *appGroupDirectoryPath = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:appGroupId];
NSURL *dataBaseURL = [appGroupDirectoryPath URLByAppendingPathComponent:#"default.realm"];
[[[RLMRealm defaultRealm]configuration]setFileURL:dataBaseURL];
RLMResults *temp = [self getContactArray]; //This gives the callKit error
RLMResults *temp ; //This doesn't give any error
[context completeRequestWithCompletionHandler:nil];
}
-(RLMResults *)getContactArray{
RLMResults *res = [[RealmContact allObjects]objectsWithPredicate:[NSPredicate predicateWithFormat:#"phone <> nil or homePhone <> nil or mobilePhone <> nil or altPhone <> nil or fax <> nil"]];
return res;
}
Why does accessing the Realm data gives the error ? The predicate format does look ok to me.
With some research I found the following code:
public enum Code : Int {
public typealias _ErrorType = CXErrorCodeCallDirectoryManagerError
case unknown
case noExtensionFound
case loadingInterrupted
case entriesOutOfOrder
case duplicateEntries
case maximumEntriesExceeded
case extensionDisabled
#available(iOS 10.3, *)
case currentlyLoading
#available(iOS 11.0, *)
case unexpectedIncrementalRemoval
}
In my case , the error says case currentlyLoading (code 7). I also tried this on realm with only 250 contacts . But I got the same error.
Edit:
If I hardcode the contact, it works fine. But if I bring Realm into scene, it fails.
CXCallDirectoryPhoneNumber phoneNumber = strtoull([#"14xxxxxx86" UTF8String], NULL, 0);
if (phoneNumber > 0) {
[context addIdentificationEntryWithNextSequentialPhoneNumber:phoneNumber label:#"Test Test"];
}
Workaround:
For now, I'm storing all my data into a file and saving that file in the app group.
NSString *appGroupId = #"group.xxx.CallerID";
NSURL *appGroupDirectoryPath = [[NSFileManager defaultManager] containerURLForSecurityApplicationGroupIdentifier:appGroupId];
NSURL *appFile = [appGroupDirectoryPath URLByAppendingPathComponent:#"contacts.txt"];
BOOL exists = [[NSFileManager defaultManager] fileExistsAtPath:[appFile path]];
if(exists) {
[[NSFileManager defaultManager]removeItemAtPath:[appFile path] error:nil];
}
[NSKeyedArchiver archiveRootObject:uniqueCallDirectory toFile:[appFile path]];
and accessing this array in the callID extension subclass.

Answer 1

The list you provide to addIdentificationEntryWithNextSequentialPhoneNumber must be ordered by ascending phone Number. Retrieve the list from realm in ascending order. (else it will break and keep the loading icon when you activate the extension)