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POWeird (to me) issue with cocoa table views
 

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  1. POWeird (to me) issue with cocoa table views
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    <p>I'm building a small app to learn Objective-C. I've tried reading some books books figured just 'jumping in' would be the best we to learn.</p> <p>Right now I'm a bit stuck though, I've looked at some of Apple's examples (and I believe I'm following them more or less). Anyway, my problem is this:</p> <p>When I create a window with a table in it, give the window some data and then open the window I have the data present and no tableView (probably because the NIB isn't loaded before I open the window?). When I open the window, my numberOfRowsInTableView function seems unable to find my data.</p> <p>I've included my full code for the .h and .m file and hope you can see what's wrong.. (probably something really silly)</p> <pre><code>// // MainWindow.h // Practice App // // #import &lt;Cocoa/Cocoa.h&gt; #import "mvmUser.h" @interface FriendStreamController : NSWindowController&lt;NSTableViewDelegate, NSTableViewDataSource&gt; @property (assign) IBOutlet NSTableView *myTableView; @property (nonatomic, retain) mvmUser *user; @property (nonatomic, retain) NSArray *activityData; -(void)setUserObject:(mvmUser *)user; -(void)createFriendstream; @end </code></pre> <p>and</p> <pre><code>// // MainWindow.m // Practice App // // #import "FriendStreamController.h" @interface FriendStreamController () @end @implementation FriendStreamController @synthesize myTableView = _myTableView; @synthesize user = _user; @synthesize activityData = _activityData; -(NSString *)windowNibName { return @"FriendStreamController"; } - (id)initWithWindow:(NSWindow *)window { return self; NSWindow *selfWindow = self.window; [selfWindow makeKeyAndOrderFront:self]; } - (void)windowDidLoad { [super windowDidLoad]; // Implement this method to handle any initialization after your window controller's window has been loaded from its nib file. } -(void)createFriendstream{ [self.myTableView reloadData]; } -(void) setUserObject:(mvmUser *)user { self.user = user; _activityData = [[NSArray alloc]initWithArray:self.user.apiResponse copyItems:YES]; NSLog(@"data 1st: %@, %@", _activityData, _myTableView); } -(NSInteger) numberOfRowsInTableView:(NSTableView *)tableView { NSLog(@"data 2nd: %@, %@", _activityData, _myTableView); int numRows = [_activityData count]; return [_activityData count]; } - (NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row { NSLog(@"table view stuff"); // group the model (activityData) NSDictionary *dictionary = [_activityData objectAtIndex:row]; NSString *identifier = [tableColumn identifier]; if([identifier isEqualToString:@"ActivityCell"]) { NSTableCellView *cellView = [tableView makeViewWithIdentifier:identifier owner:self]; cellView.textField = [dictionary objectForKey:@"username"]; return cellView; } return nil; } @end </code></pre> <p>and my NSLOGs give me :</p> <pre><code>2012-07-13 00:07:14.550 Practice App[13571:f03] data 1st: ( { "activity_id" = 3122267; "activity_name" = "add_media"; avatar = "http://a1.media.mobyhub.com/avatar/41d3b6664cb8d8a55148364f4833c89e_60px.jpg"; "created_on" = "2012-07-12 23:37:50"; id = 3122267; moby = { "content_type" = photo; description = ""; id = 13271224; media = "http://a1.img.mobypicture.com/69f025622e87b1265d55395d877f1d83_view.jpg"; "short_url" = "http://moby.to/f8asii"; thumbnail = "http://a1.img.mobypicture.com/69f025622e87b1265d55395d877f1d83_square.jpg"; title = "@robertpaul @Paulpridephoto @mattebox @eastbayjay Set this to on. Preset URL saved in image EXIF data."; url = "http://www.mobypicture.com/user/simon_harper/view/13271224"; }; "name_first" = Simon; "name_last" = Harper; "user_id" = 454519; username = "simon_harper"; }, { "activity_id" = 3119852; "activity_name" = "add_media"; avatar = "http://a0.media.mobyhub.com/avatar/c2b0b2914f2738a7ded180fee123ad91_60px.jpg"; "created_on" = "2012-07-12 20:07:59"; id = 3119852; moby = { "content_type" = photo; description = ""; id = 13269679; media = "http://a0.img.mobypicture.com/d86fc26985b5cbf34b3a0aa3d3b40d5c_view.jpg"; "short_url" = "http://moby.to/tphlja"; thumbnail = "http://a0.img.mobypicture.com/d86fc26985b5cbf34b3a0aa3d3b40d5c_square.jpg"; title = "Iemand een idee hoe ik met dit bedrijf in contact kan komen? Formulier werkt niet, maar kan geen vragen stellen @nrc "; url = "http://www.mobypicture.com/user/Josk/view/13269679"; }; "name_first" = Jos; "name_last" = Kok; "user_id" = 2540; username = Josk; }, { "activity_id" = 3118440; "activity_name" = "add_media"; avatar = "http://a0.media.mobyhub.com/avatar/7e4bcc3f625b3d50ed49bd32eb65eafc_60px.jpg"; "created_on" = "2012-07-12 17:55:26"; id = 3118440; moby = { "content_type" = photo; description = ""; id = 13268834; media = "http://a3.img.mobypicture.com/ebfc0300aeb3bd54f1956cb22eea8cbb_view.jpg"; "short_url" = "http://moby.to/sg62tw"; thumbnail = "http://a3.img.mobypicture.com/ebfc0300aeb3bd54f1956cb22eea8cbb_square.jpg"; title = "Opel Ampera op de A9 vlakbij haarlem. Best mooie auto eigenlijk. Hoeveel rijd hij nu echt elektrisch op een volle accu?"; url = "http://www.mobypicture.com/user/vincente/view/13268834"; }; "name_first" = vincent; "name_last" = everts; "user_id" = 2487; username = vincente; }, { "activity_id" = 3118321; "activity_name" = "add_media"; avatar = "http://a0.media.mobyhub.com/avatar/402bff232d440ecf6a4a037830eb2780_60px.jpg"; "created_on" = "2012-07-12 17:39:40"; id = 3118321; moby = { "content_type" = photo; description = ""; id = 13268749; latlong = "52.067,4.32418"; media = "http://a2.img.mobypicture.com/d27abd1ac8b18f406f45f8621ef0e2d7_view.jpg"; "short_url" = "http://moby.to/3j1wie"; thumbnail = "http://a2.img.mobypicture.com/d27abd1ac8b18f406f45f8621ef0e2d7_square.jpg"; title = "Trots op @ChelseyWinkel die nu al haar P haalt :)"; url = "http://www.mobypicture.com/user/Mikevanrossum/view/13268749"; }; "name_first" = Mike; "name_last" = "van Rossum"; "user_id" = 28504056; username = Mikevanrossum; }, { "activity_id" = 3117532; "activity_name" = "add_friend"; avatar = "http://a1.media.mobyhub.com/avatar/f1459fef5a78c525ef60c47a706709bd_60px.jpg"; "created_on" = "2012-07-12 16:33:49"; id = 3117532; "name_first" = Berry; "name_last" = Helsloot; target = { avatar = "http://a0.media.mobyhub.com/avatar/e0f6b16e645594c96a6d8693969c787d_60px.jpg"; "name_first" = Mick; "name_last" = Harren; "user_id" = 427052; username = mickharren; }; "user_id" = 213700; username = bhelsloot; }, { "activity_id" = 3116839; "activity_name" = "add_media"; avatar = "http://a0.media.mobyhub.com/avatar/601a85e2a0279875ea558835fda56aef_60px.jpg"; "created_on" = "2012-07-12 15:23:29"; id = 3116839; moby = { "content_type" = photo; description = ""; id = 13268001; media = "http://a3.img.mobypicture.com/7bf755f874955c24bfa06e247d0d11ea_view.jpg"; "short_url" = "http://moby.to/yqg56x"; thumbnail = "http://a3.img.mobypicture.com/7bf755f874955c24bfa06e247d0d11ea_square.jpg"; title = "\U266c'Ice Ice Baby' - Vanilla Ice\U266a #nowplaying on #spotify http://open.spotify.com/track/3XVozq1aeqsJwpXrEZrDJ9"; url = "http://www.mobypicture.com/user/Dryxe/view/13268001"; }; "name_first" = Daan; "name_last" = "van der Plas"; "user_id" = 28780688; username = Dryxe; } ), (null) 2012-07-13 00:07:14.655 Practice App[13571:f03] data 2nd: (null), &lt;NSTableView: 0x7f887b364930&gt; </code></pre> <p>Hope you can give some help, would be awesome.</p>
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    1. USdonnywals
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      1. VTUpMod
    1. COWhere do you call setUserObject: from? Also note you could just implement the propertie's setter method, setUser: instead of creating your own separate one.
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      1. USDouglasHeriot
    2. COi call setUserObject from my main window so I can set it to a central user object. I don't think this is method is my problem, I feel like there's something about my object's lifetime I'm not understanding here.
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      1. USdonnywals
 

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