ios call back block return value - ios

Question

I am testing the call back and block function.
I'm using the objective-c in iOS.
I write a call back method name is "dosomethingProcessWithCompletion".
dosomethingProcessWithCompletion do something , then it will get the NSMutableDictionary value, I will use the nsmutabledictionary value to check something and return the value yes or no.
If the value is yes(------- AAAAA-------), I need break the
for( NSInteger i = 0 ; i < myAry.count; i++ ).. for loop .
and return the yes using tryToCallBlockMethod method.
If the value is no, the for loop will run to last item and return the no using tryToCallBlockMethod method.
But I don't known how to write the call back return value .
have anyone can give some hand?
My code below:
My AppTool declare:
typedef BOOL(^DoMyProcessCompletion)(NSMutableDictionary *completeresult);
+ (void) dosomethingProcessWithCompletion:(NSURL*)theUrl andUserPsd:(NSString*)psd withCompletion:(DoMyProcessCompletion) completion{
.....
....
..
NSMutableDictionary *resultDic = [NSMutableDictionary dictionary];
if( something == YES ){
[resultDic setObject:[NSNumber numberWithBool:YES] forKey:#"resultDicKey"];
[resultDic setObject:myData forKey:#"myDataDicKey"];
}else{
[resultDic setObject:[NSNumber numberWithBool:NO] forKey:#"resultDicKey"];
[resultDic setObject:[NSNull null] forKey:#"myDataDicKey"];
}
completion(resultDic)
}
My use and implement function is below:
-(BOOL) tryToCallBlockMethod{
for( NSInteger i = 0 ; i < myAry.count; i++ ){
userPsd = myAry[i];
[AppTool dosomethingProcessWithCompletion:[NSURL URLWithString:theUrl] andUserPsd:userPsd withCompletion:^(NSMutableDictionary *completeResult) {
BOOL result = [[completeResult objectForKey:#"resultDicKey"] boolValue];
if( result == YES){
//------- AAAAA-------
//------- if result is YES, will break the for look , and tryToCallBlockMethod will return YES.
return YES;
}else{
//------- BBBBBBB-------
return NO;
}
}];
}
}
Thank you very much.

Answer 1

You need to return boolean as below while you have used the Block inside the fuction.
-(void) tryToCallBlockMethod:(void(^)(BOOL isResult))callback{
if( result == YES){
callback(YES)
return YES;
}else{
callback(NO)
}
}