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POFilling an NSMutableArray with a Set of Classes and Then Getting them Back
 

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    <p>Hopefully I can make this clear, but I am new to Objective-C and to be honest not great with Arrays in the first place.</p> <p>So, I have a Singleton class (called SingletonState) that I am using to pass variables around my app (please can we leave the whether I should use Singleton classes out of this - I will fix that later). In this class, I have an NSMutableArray (called arrayMyEvents). I have also created a class that I am going to store a list of events (called EventClass). When the user logs in, I call a web service and get back 3 strings. The 3rd string is a comma separated list of value. I parse the data and populate the custom class EventClass. I then add this class to the SingletonState.arrayMyEvents. </p> <p>I have all of this working. I can go to another ViewController and access the "count" of items in arrayMyEvents.</p> <p>PROBLEM: I now want to edit one of the ScheduledEventsClass"es" in my array. How do I get access to it and edit some of the properties and update the one in my SingletonState class?</p> <p>Here is some of the code, that I've tried:</p> <pre><code>NSString *sWebServiceEvents = [[NSString alloc] initWithFormat:@"%@", [result objectAtIndex:2]]; if ( [ sWebServiceEvents isEqualToString:@"NULL" ] != true ) { NSArray *arrayEvents = [sWebServiceEvents componentsSeparatedByString:@","]; // If the array has not been initialized they initialize it. if (sharedState.arrayMyEvents == nil) { sharedState.arrayMyEvents = [[NSMutableArray alloc ] init ]; } for (NSString * sEvent in arrayEvents) { // Set equal to the value of the array (the Event Number) at the same // position as the row that we are being asked to return a cell/row for. EventClass *eventClass = [[EventClass alloc] retain]; eventClass.sEvent = sEvent; [ sharedState.arrayEvents addObject:eventClass ]; } NSLog(@"LoginView - sharedState.arrayMyEvents Count: %d", [sharedState.arrayMyEvents count]); } </code></pre> <p>Here is me trying to access it in another ViewController:</p> <pre><code>EventClass *eventClass = [sharedState.arrayMyEvents objectAtIndex:row ]; NSLog(@"eventClass.sEventNumber: ", eventClass.sEventNumber); eventClass.sLocation = @"Jason's Big Location"; </code></pre>
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    1. COSo what exactly is not working?
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    2. COBefore changing properties from assign to retain in my EventClass the values were not staying assigned.
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