addObject replaces previous object in NSMutableArray

Question

I\'m trying to add objects to a NSMutableArray through a for loop. But it seems whenever I add an object it replaces the old one so that I only have one object in the array

Answer 1

You keep re-initializing the array for every run of the loop with this line:

dataArray = [[NSMutableArray alloc] init];

So dataArray is set to a new (empty) array for every run of the loop.

Initialize the array before the loop instead. Try something like this:

dataArray = [[NSMutableArray alloc] init];

for (NSInteger i = 0; i < [getResults count]; i++) {

    PostInfo *postInfo = [getResults objectAtIndex:i];

    [dataArray addObject:postInfo.noteText];

    NSLog(@"RESULT TEST %@", dataArray);

}

Answer 2

you are initialising the dataArray inside the for loop, so everytime it is created again (which means there are no objects) and a new object is added

move

dataArray = [[NSMutableArray alloc] init];

to before the for loop

also there is no need to alloc/init the postInfo object when you immediately override it with the object from the getResults array