Google Plus SDK Call back for share - ios

Question

I have integrated Google Plus SDK for ios and setup everything for share. But is there a callback after the share display popup is opened AND THEN user shares or cancels the share. I want to know the delegate method where it says this.
I know that -(void)finishedSharingWithError:(NSError *)error is the delegate method but its not being called.
Here is my code for sharing via google plus..
-(void)postToGooglePlus:(PostModel *)parameter{
GPPSignIn *signIn = [GPPSignIn sharedInstance];
signIn.shouldFetchGooglePlusUser = YES;
signIn.clientID = kClientId;
signIn.scopes = #[ kGTLAuthScopePlusLogin ];
signIn.delegate = self;
[signIn authenticate];
}
- (void)finishedWithAuth: (GTMOAuth2Authentication *)auth
error: (NSError *) error {
NSLog(#"Received error %# and auth object %#",error, auth);
id<GPPNativeShareBuilder> shareBuilder = [[GPPShare sharedInstance] nativeShareDialog];
[shareBuilder setPrefillText:#"This is a test"];
[shareBuilder open];
}
-(void)finishedSharingWithError:(NSError *)error{
if(!error){
}
}

Answer 1

You will have to set <GPPShareDelegate> to your view controller first. After that set delegate like this in your - (void)finishedWithAuth: (GTMOAuth2Authentication *)auth error: (NSError *) errormethod:
id<GPPNativeShareBuilder> shareBuilder = [[GPPShare sharedInstance] nativeShareDialog];
[GPPShare sharedInstance].delegate = self;
You will now be able to call -(void)finishedSharingWithError:(NSError *)error or -(void)finishedSharing:(BOOL)shared accordingly.