Home Accessibility Courses Twitter The Mouth Facebook Resources Site Map About Us Contact
 
20.9.2014 - We have just updated our course layouts and descriptions and added our 2015 schedule.

A single action for multiple iPad / iPhone buttons, and animation

Learning to program the iPad and iPhoneHow do we add animation to an iPad / iPhone app? How do we share one action routine across a whole lot of similar buttons? These are amongst the questions that we looked at, and answered, in the little demonstration below during today's iOS / iPad / iPhone "Geekfest" ;-).


Here is the header file ViewController.h:

  #import
 
  @interface ViewController : UIViewController{
    UIButton *goUp;
    UIButton *goDown;
    UIImageView *crewe;
  }
 
  @property(nonatomic, retain) IBOutlet UIButton *goUp;
  @property(nonatomic, retain) IBOutlet UIButton *goDown;
  @property(nonatomic, retain) IBOutlet UIImageView *crewe;
 
  -(IBAction)movingImage:(id)sender;
@end


And the changes to ViewController.m:

  @synthesize goUp;
  @synthesize goDown;
  @synthesize crewe;


With the added action routine:

  -(IBAction)movingImage:(id)sender {
   
    if (sender == goUp) {
   
    [UIView beginAnimations:@"moveitup" context:NULL];
    [crewe setFrame:CGRectOffset([crewe frame],0,-400)];
    [UIView commitAnimations];
   
    } else {
 
    [UIView beginAnimations:@"moveitdown" context:NULL];
    [UIView setAnimationDuration:5.0];
     // Should really have used animateWithDuration
    [crewe setFrame:CGRectOffset([crewe frame],0,400)];
    [UIView commitAnimations];
   
    }
  }


Results:

Down Train


Up Trains

(written 2012-03-11)

 
Associated topics are indexed as below, or enter http://melksh.am/nnnn for individual articles
C501 - C and C based languages - Objective C, XCode and iOS Resources
  [3650] Possessive Regular Expression Matching - Perl, Objective C and some other languages - (2012-03-12)
  [3648] iPad and iPhone programming - our seminar weekend with Xcode - (2012-03-11)
  [3599] Seeing how Melksham has changed over the years, via an iPad - (2012-01-30)
  [3596] Want to learn iPad and iPhone programming? Come along and learn with me for free. - (2012-01-28)
  [3594] Back to Uni - (2012-01-26)


Back to
iPad and iPhone programming - our seminar weekend with Xcode
Previous and next
or
Horse's mouth home
Forward to
Possessive Regular Expression Matching - Perl, Objective C and some other languages
Some other Articles
What is happening in 59 days time in Melksham?
A Complete makefile example
Makefile - some basics, and a demonstration
A single action for multiple iPad / iPhone buttons, and animation
Along the brook - East Melksham to Melksham
Exploring Melksham with a film maker
Keeping our hotel looking like new, by using our gained experience
The way of the Prioress - Melksham history pictured today
4291 posts, page by page
Link to page ... 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86 at 50 posts per page


This is a page archived from The Horse's Mouth at http://www.wellho.net/horse/ - the diary and writings of Graham Ellis. Every attempt was made to provide current information at the time the page was written, but things do move forward in our business - new software releases, price changes, new techniques. Please check back via our main site for current courses, prices, versions, etc - any mention of a price in "The Horse's Mouth" cannot be taken as an offer to supply at that price.

Link to Ezine home page (for reading).
Link to Blogging home page (to add comments).

You can Add a comment or ranking to this page

© WELL HOUSE CONSULTANTS LTD., 2014: Well House Manor • 48 Spa Road • Melksham, Wiltshire • United Kingdom • SN12 7NY
PH: 01144 1225 708225 • FAX: 01144 1225 899360 • EMAIL: info@wellho.net • WEB: http://www.wellho.net • SKYPE: wellho

PAGE: http://www.wellho.net/mouth/3649_A-s ... ation.html • PAGE BUILT: Thu Sep 18 15:30:25 2014 • BUILD SYSTEM: WomanWithCat