Databases
StackOverflow2013
Postsdbo
POSubclassing UIImageView - animation images do not display or appear
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POSubclassing UIImageView - animation images do not display or appear
    primarykey
    data
    text
    <p>I'm trying to subclass UIImageView in order to create an instance of the subclass which plays different animations, depending on a variable I send it. My initial code (before subclassing) for playing a specific 2 frame animation looked like this. 'bubbleAnimationTemp' is just a UIImageView object I declared in the header: </p> <pre><code>UIImage *animImage1 = [UIImage imageNamed:@"HappyAnim1.png"]; UIImage *animImage2 = [UIImage imageNamed:@"HappyAnim2.png"]; NSArray *images = [[NSArray alloc] initWithObjects:animImage1, animImage2, nil]; bubbleAnimationTemp.animationImages = images; [images release]; bubbleAnimationTemp.animationDuration = 0.5; bubbleAnimationTemp.animationRepeatCount = 5; [bubbleAnimationTemp startAnimating]; </code></pre> <p>So then I tried subclassing UIImageView like so: </p> <pre><code>#import &lt;UIKit/UIKit.h&gt; #import "Interaction.h" @interface BubbleAnimation : UIImageView { UIImage *emotAnim1; UIImage *emotAnim2; } @property (nonatomic, retain) UIImage *emotAnim1; @property (nonatomic, retain) UIImage *emotAnim2; - (BubbleAnimation *)initWithMood:(NSString *)mood; </code></pre> <p>@end</p> <pre><code>#import "BubbleAnimation.h" @implementation BubbleAnimation @synthesize emotAnim1; @synthesize emotAnim2; - (BubbleAnimation *)initWithMood:(NSString *)mood { if (self = [super init]) { NSLog(@"Mood: %@", mood); if ([mood isEqualToString:kGood]) { emotAnim1 = [[UIImage alloc] initWithContentsOfFile:([[NSBundle mainBundle] pathForResource:@"HappyAnim1" ofType:@"png"])]; emotAnim2 = [[UIImage alloc] initWithContentsOfFile:([[NSBundle mainBundle] pathForResource:@"HappyAnim2" ofType:@"png"])]; //emotAnim1 = [UIImage imageNamed:@"HappyAnim1.png"]; //emotAnim2 = [UIImage imageNamed:@"HappyAnim2.png"]; } else if ([mood isEqualToString:kNeutral]) { emotAnim1 = [UIImage imageNamed:@"NeutralAnim1.png"]; emotAnim2 = [UIImage imageNamed:@"NeutralAnim2.png"]; } else { emotAnim1 = [UIImage imageNamed:@"SadAnim1.png"]; emotAnim2 = [UIImage imageNamed:@"SadAnim2.png"]; } NSArray *images = [[NSArray alloc] initWithObjects:emotAnim1, emotAnim2, nil]; self.animationImages = images; [images release]; } return self; } </code></pre> <p>As you can see, I tried two different approaches for creating the UIImages to add to the UIImageView. But the problem I'm having is that nothing shows up when the animation plays. </p> <p>I also tried simply copying the code from the first method into this subclass, so the process is essentially the same, but still nothing appears. </p> <p>I've checked the documentation for notes on subclassing UIImageView but there doesn't seem to be anything I'm missing. I've made sure to change the 'UIImageView' object I placed in Interface Builder into a 'BubbleAnimation' object, so it's not that. </p> <p>Any help as to why nothing appears would be very much appreciated. Thanks as always! </p> <p>Michael </p> <p>****************UPDATE****************</p> <p>Well, thanks to Kalle's advice below, this is all fixed. However, now a similar issue is reoccurring and I wonder what I'm doing wrong.</p> <p>Basically, I want to have a small heart that appears in the thought bubble, alongside the animation. I've added a UIImage to the BubbleAnimation class like so:</p> <pre><code>@interface BubbleAnimation : UIImageView { UIImage *emotAnim1; UIImage *emotAnim2; UIImage *heart; } @property (nonatomic, retain) UIImage *heart; - (void)setMood:(NSString *)mood; @end </code></pre> <p>And synthesise it in the implementation as usual. Then I set the heart to the correct colour in the setMood method:</p> <pre><code>- (void)setMood:(NSString *)mood { if ([mood isEqualToString:kGood]) { emotAnim1 = [UIImage imageNamed:@"Good1.png"]; emotAnim2 = [UIImage imageNamed:@"Good2.png"]; self.heart = [UIImage imageNamed:@"HeartRed.png"]; } else if ... </code></pre> <p>In IB, I've added a hidden UIImageView object and linked it to a UIImageView IBOutlet in my ViewController called bubbleHeart. When the thought bubble appears, I use the following code to display the animations and the heart:</p> <pre><code> [bubbleAnimation setMood:charachter.mood]; self.bubbleHeart.image = bubbleAnimation.heart; bubbleAnimation.animationDuration = kAnimationDuration; bubbleAnimation.animationRepeatCount = kAnimationRepeatCount; [bubbleAnimation startAnimating]; bubbleHeart.hidden = FALSE; </code></pre> <p>The problem is, the animation appears, but the little heart doesn't. I've tried various approaches - I created the UIImageView in the BubbleAnimation class, instead of using a UIImage, and tried initialising it in various different ways, but no joy. If I call something like <code>self.bubbleHeart = [[UIImageView alloc] initWithImage:bubbleAnimation.heart];</code> then presumably I'm reinitialising the variable so that doesn't work. Any idea why it's not appearing? </p> <p>Many thanks!</p> <p>Michael </p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USSmikey
    1. USSmikey
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. COBy the way, this is how I'm calling the animation to be played (sorry about the formatting!): bubbleAnimation = [[BubbleAnimation alloc] initWithMood:charcter.mood]; bubbleAnimation.animationDuration = 0.5; bubbleAnimation.animationRepeatCount = 5; [bubbleAnimation startAnimating];
      singulars
      1. POSubclassing UIImageView - animation images do not display or appear
      1. USSmikey
    2. COParenthesis, but: You can edit your question (this is preferred) to get the nice formatting and such. ;)
      singulars
      1. POSubclassing UIImageView - animation images do not display or appear
      1. USKalle
 

Querying!

 
Guidance
A row detail

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.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

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.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload