dev.enekoalonso.com » objective-c http://dev.enekoalonso.com having fun with code Thu, 02 Sep 2010 13:56:13 +0000 en hourly 1 Titanium Developer: love and hate (Part II) http://dev.enekoalonso.com/2010/08/18/titanium-developer-love-and-hate-part-ii/ http://dev.enekoalonso.com/2010/08/18/titanium-developer-love-and-hate-part-ii/#comments Wed, 18 Aug 2010 19:58:52 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=644 For the last four weeks and despite other projects and deadlines, I’ve been working on a mobile app for iPhone and Android, using Titanium Developer from Appcelerator.

I still hate it. And I still love it.

More to come…

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]]> http://dev.enekoalonso.com/2010/08/18/titanium-developer-love-and-hate-part-ii/feed/ 0 Trimming strings in Objective-C / Cocoa http://dev.enekoalonso.com/2009/07/30/trimming-strings-objective-c-cocoa/ http://dev.enekoalonso.com/2009/07/30/trimming-strings-objective-c-cocoa/#comments Thu, 30 Jul 2009 16:58:49 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=319
  1. returnString =  [returnString stringByTrimmingCharactersInSet:
  2.                  [NSCharacterSet whitespaceAndNewlineCharacterSet]];

Very intuitive, huh?

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]]> http://dev.enekoalonso.com/2009/07/30/trimming-strings-objective-c-cocoa/feed/ 0 Placing a UIActivityIndicartorView on a UIBarButtonItem http://dev.enekoalonso.com/2009/07/26/placing-a-uiactivityindicartorview-on-a-uibarbuttonitem/ http://dev.enekoalonso.com/2009/07/26/placing-a-uiactivityindicartorview-on-a-uibarbuttonitem/#comments Sun, 26 Jul 2009 21:36:39 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=347 Have you seen those iPhone apps with a reload button that switches itself to an animated activity indicator while the reload action is being performed?

Here is how to do that. Place this code on your ViewController:

  1. - (void)showReloadButton {
  2.   UIBarButtonItem *refreshItem = [[UIBarButtonItem alloc]
  3.     initWithBarButtonSystemItem:UIBarButtonSystemItemRefresh
  4.                                         target:self
  5.                                         action:@selector(reload:)];
  6.   self.navigationItem.rightBarButtonItem = refreshItem;
  7.   [refreshItem release];
  8. }
  9.  
  10. - (void)showActivityIndicator {
  11.   UIActivityIndicatorView *activityIndicator =
  12.     [[UIActivityIndicatorView alloc] initWithFrame:CGRectMake(0, 0, 20, 20)];
  13.   [activityIndicator startAnimating];
  14.   UIBarButtonItem *activityItem =
  15.     [[UIBarButtonItem alloc] initWithCustomView:activityIndicator];
  16.   [activityIndicator release];
  17.   self.navigationItem.rightBarButtonItem = activityItem;
  18.   [activityItem release];
  19. }
  20.  
  21. - (IBAction) reload {
  22.   // Do your reload stuff
  23. }

Seen here.

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]]> http://dev.enekoalonso.com/2009/07/26/placing-a-uiactivityindicartorview-on-a-uibarbuttonitem/feed/ 0 MyGameOfLife source code http://dev.enekoalonso.com/2008/11/28/mygameoflife-source-code/ http://dev.enekoalonso.com/2008/11/28/mygameoflife-source-code/#comments Sat, 29 Nov 2008 06:11:25 +0000 Eneko Alonso http://dev.enekoalonso.com/?p=40 Almost a year ago I was learning some Cocoa and I decided it will be fun to implement a Cocoa based version of Conway’s Game of Life. Back then I didn’t publish the source code, not for any special reason. So now I have just uploaded it to Google Code. It’s not fully functional, since the last time I worked on it I was creating an structure editor. My idea was to create a library of structures, with drag&drop and import/export options.

If you are interested on working on the project, let me know :)

http://code.google.com/p/my-gameoflife

My Game of Life

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