Question

I am just trying to clarify that this is the easiest and most efficient way to make the array of titles for the cells in my tableview.

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {

contentArray = [[NSArray arrayWithObjects:@"Hi1", @"Hi2", @"Hi3", @"Hi4", @"Hi5", @"Hi6", @"Hi7", nil] retain];
return [contentArray count];

[contentArray release];
}

Should I be doing this another way or this efficient and the best it can be? Because currently it is a bit laggy and I would like to make it a bit faster.

Thanks!

Answer 1

Calls to the method tableView:numberOfRowsInSection: can be triggered by different events. You are creating the array on each call, which increases the lag. Try this instead:

// .h file
@property (nonatomic, retain) NSArray *contentArray;

// .m file
@synthesize contentArray=_contentArray;

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return [self.contentArray count];
}

-(void) viewDidLoad {
  self.contentArray = [NSArray arrayWithObjects:@"Hi1", @"Hi2", @"Hi3", @"Hi4", @"Hi5", @"Hi6", @"Hi7", nil];
  [super viewDidLoad];
}
-(void) dealloc {
    [_contentArray release]
    [super dealloc];
}