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POHow do you reload a tableView in ios6 with a mutable array?
 

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  1. POHow do you reload a tableView in ios6 with a mutable array?
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    <p>I have a tableview set up with data from a mutable array but I cannot figure out how to reload it, or even if it's being loaded in the first place.</p> <p>The mutable array is changed when a user presses a button. When I initialize the array with test data, the table view works fine. I figured that I needed to reload the table, but I've been unsuccessful doing it inside cellForRowAtIndexPath. I've also tried to reload by synthesizing the tableView through the .h and reloading after adding to the array from the add button being clicked method (attempts not reflected in code, but if you think I did it wrong go ahead and post the right way).</p> <p>There is no error, but nothing happens when I click the add button.</p> <p>Any help is greatly appreciated.</p> <p>Relevant code:</p> <p>.h:</p> <pre><code>#import &lt;UIKit/UIKit.h&gt; @interface ViewController : UIViewController &lt;UITableViewDelegate, UITableViewDataSource&gt; @property (weak, nonatomic) IBOutlet UITextField *name; @property (weak, nonatomic) IBOutlet UITextField *company; - (IBAction)add:(id)sender; **@property (nonatomic, retain) NSMutableArray *currentNames; @property (nonatomic, retain) NSMutableArray *currentCompanies; @property (nonatomic, retain) NSMutableArray *names; @property (nonatomic, retain) NSMutableArray *companies; @property (weak, nonatomic) IBOutlet UITableView *preExisting;** @end </code></pre> <p>.m:</p> <pre><code>#import "ViewController.h" @interface ViewController () @end @implementation ViewController **@synthesize name, company, currentNames, currentCompanies, names, companies; - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. NSMutableArray *currentNames = [[NSMutableArray alloc] init]; NSMutableArray *currentCompanies = [[NSMutableArray alloc] init]; NSMutableArray *names = [[NSMutableArray alloc] init]; NSMutableArray *companies = [[NSMutableArray alloc] init]; self.preExisting = [[UITableView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame] style:UITableViewStylePlain];** } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; // Dispose of any resources that can be recreated. } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { this.tableView = tableView; return [currentNames count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *simpleTableIdentifier = @"SimpleTableItem"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier]; if (cell == nil) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:simpleTableIdentifier]; } cell.textLabel.text = [currentNames objectAtIndex:indexPath.row]; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [tableView reloadData]; } - (IBAction)add:(id)sender { BOOL exists = [names containsObject:name.text]; if(exists == FALSE){ [currentNames addObject:[name text]]; [currentCompanies addObject:[company text]]; [names addObject:[name text]]; [companies addObject:[company text]]; } else{ [currentNames addObject:[name text]]; [currentCompanies addObject:[company text]]; } [currentNames addObject:[name text]]; **[_preExisting reloadData];** name.text=@""; company.text=@""; } @end </code></pre>
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

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