memory management - iOS - assignment of ivars through properties -

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given instance variable:

uilabel *label;

and below property:

@property (nonatomic,retain) uilabel *label;

and following synthesize:

@synthesize label;

are these below assignments correct (with respect correct memory management):

// 1 uilabel *tmplabel = [[uilabel alloc] initwithframe:cgsizezero]; self.label = tmplabel; [tmplabel release];  // 2 self.label = [[[uilabel alloc] initwithframe:cgsizezero] autorelease];  // 3 - 1 looks shady haven't gotten leaks ( suppose // not use created setter) label = [[uilabel alloc] initwithframe:cgsizezero];  - (void)viewdidunload {     self.label = nil;     [super viewdidunload]; }  - (void)dealloc {     [label release];     [super dealloc]; }

all correct. thing note if release label in -viewdidunload have recreate in viewwillload. correct in number 3 not go through setter.


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