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POUsing accessor methods to set iVars?
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copied!<p>Initially, I was looking at the way "pickerData" is set and thinking I wonder why you can't just assign it directly (as in METHOD_002), but then I stated thinking that I should really be using the accessor methods I defined and not setting the instance variables directly. Am I understand this correctly that METHOD_001 is a better way of doing this?</p> <pre><code>@property(nonatomic, retain) IBOutlet NSArray *pickerData; </code></pre> <p>METHOD_001</p> <pre><code>-(void)viewDidLoad { NSLog(@"VIEW: Single ... Loaded"); NSArray *dataArray = [[NSArray alloc] initWithObjects:@"A", @"B", @"C",nil]; [self setPickerData:dataArray]; [dataArray release]; [super viewDidLoad]; } -(void)dealloc { [pickerData release]; [super dealloc]; } </code></pre> <p>OR METHOD_002</p> <pre><code>-(void)viewDidLoad { NSLog(@"VIEW: Single ... Loaded"); if(pickerData != nil) [pickerData release]; pickerData = [[[NSArray alloc] initWithObjects:@"A", @"B", @"C", nil] retain]; [super viewDidLoad]; } -(void)dealloc { [pickerData release]; [super dealloc]; } </code></pre> <h1>EDIT_001:</h1> <p>First off I have added the "nil" values to terminate the NSArrays, coming from C I always forget this, my bad. Also you're right, I did not account for the fact in METHOD_002 that pickerData might already be set and as a result leak the old object. Once you start noticing these problems and fixing the code it starts to look like METHOD_001 is the best idea. Or to just use the property directly as Vladimir and eJames noted.</p> <pre><code>self.pickerData = [NSArray arrayWithObjects: @"A", @"B", @"C", nil]; </code></pre> <h1>EDIT_002:</h1> <p>Thank you for all the pointers and comments, for now I am going to stick with METHOD_001, I could just as easily use NSArrayWithObjects: but I am trying to keep memory usage low by releasing things myself as soon as I can (not that it matters here, but for future projects) Also I do like the feel of self.pickerData, but I am still unsure how I feel about dot-notation and have for now been trying to stick with old style objects and messages where possible. Again many thanks for the help.</p> <p>gary</p>

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