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Josh Holder
1,207 PointsAnimating Crystal Ball -[UIView setAnimationImages:]: unrecognized selector sent to instance 0x8e56c20
Hi everyone, I'm trying to finish the Crystal Ball app. I've followed the video exactly and compared my code to the one in the project files and it seems pretty much identical, yet when I run my app it crashes and throws the error -[UIView setAnimationImages:]: unrecognized selector sent to instance 0x8e56c20.
Any ideas? Thanks in advance.
.h:
#import <UIKit/UIKit.h>
@class JHCrystalBall;
@interface JHViewController : UIViewController
@property (strong, nonatomic) IBOutlet UILabel *predictionLabel;
@property (strong, nonatomic) JHCrystalBall *crystalBall;
@property (strong, nonatomic) IBOutlet UIImageView *backgroundImageView;
@end
.m:
#import "JHViewController.h"
#import "JHCrystalBall.h"
@interface JHViewController ()
@end
@implementation JHViewController
- (void)viewDidLoad
{
[super viewDidLoad];
self.crystalBall = [[JHCrystalBall alloc] init];
self.backgroundImageView.animationImages = [[NSArray alloc] initWithObjects:
[UIImage imageNamed:@"CB00001"],
[UIImage imageNamed:@"CB00003"],
[UIImage imageNamed:@"CB00004"],
[UIImage imageNamed:@"CB00005"],
[UIImage imageNamed:@"CB00006"],
[UIImage imageNamed:@"CB00007"],
[UIImage imageNamed:@"CB00008"],
[UIImage imageNamed:@"CB00009"],
[UIImage imageNamed:@"CB00010"],
[UIImage imageNamed:@"CB00011"],
[UIImage imageNamed:@"CB00012"],
[UIImage imageNamed:@"CB00013"],
[UIImage imageNamed:@"CB00014"],
[UIImage imageNamed:@"CB00015"],
[UIImage imageNamed:@"CB00016"],
[UIImage imageNamed:@"CB00017"],
[UIImage imageNamed:@"CB00018"],
[UIImage imageNamed:@"CB00019"],
[UIImage imageNamed:@"CB00020"],
[UIImage imageNamed:@"CB00021"],
[UIImage imageNamed:@"CB00022"],
[UIImage imageNamed:@"CB00023"],
[UIImage imageNamed:@"CB00024"],
[UIImage imageNamed:@"CB00025"],
[UIImage imageNamed:@"CB00026"],
[UIImage imageNamed:@"CB00027"],
[UIImage imageNamed:@"CB00028"],
[UIImage imageNamed:@"CB00029"],
[UIImage imageNamed:@"CB00030"],
[UIImage imageNamed:@"CB00031"],
[UIImage imageNamed:@"CB00032"],
[UIImage imageNamed:@"CB00033"],
[UIImage imageNamed:@"CB00034"],
[UIImage imageNamed:@"CB00035"],
[UIImage imageNamed:@"CB00036"],
[UIImage imageNamed:@"CB00037"],
[UIImage imageNamed:@"CB00038"],
[UIImage imageNamed:@"CB00039"],
[UIImage imageNamed:@"CB00040"],
[UIImage imageNamed:@"CB00041"],
[UIImage imageNamed:@"CB00042"],
[UIImage imageNamed:@"CB00043"],
[UIImage imageNamed:@"CB00044"],
[UIImage imageNamed:@"CB00045"],
[UIImage imageNamed:@"CB00046"],
[UIImage imageNamed:@"CB00047"],
[UIImage imageNamed:@"CB00048"],
[UIImage imageNamed:@"CB00049"],
[UIImage imageNamed:@"CB00050"],
[UIImage imageNamed:@"CB00051"],
[UIImage imageNamed:@"CB00052"],
[UIImage imageNamed:@"CB00053"],
[UIImage imageNamed:@"CB00054"],
[UIImage imageNamed:@"CB00055"],
[UIImage imageNamed:@"CB00056"],
[UIImage imageNamed:@"CB00057"],
[UIImage imageNamed:@"CB00058"],
[UIImage imageNamed:@"CB00059"],
[UIImage imageNamed:@"CB00060"],nil];
self.backgroundImageView.animationDuration = 2.5f;
self.backgroundImageView.animationRepeatCount = 1;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#pragma mark - Prediction
- (void) makePrediction {
self.predictionLabel.text = [self.crystalBall randomPrediction];
}
#pragma mark - Motion Events
- (void) motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event {
self.predictionLabel.text = nil;
}
- (void) motionEnded:(UIEventSubtype)motion withEvent:(UIEvent *)event {
if ( motion == UIEventSubtypeMotionShake ){
[self makePrediction];
}
}
- (void) motionCancelled:(UIEventSubtype)motion withEvent:(UIEvent *)event {
NSLog(@"motion cancelled");
}
#pragma mark - Touch Events
- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
self.predictionLabel.text = nil;
}
- (void) touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
[self makePrediction];
}
- (void) touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event {
NSLog(@"touches cancelled");
}
@end
2 Answers
Stone Preston
42,016 Pointsthe setAnimationImages method belongs to UIImageView, not UIView so it looks like you may have made a mistake when connecting your imageView up to your class.
go to your storyboard and open up the connections inspector of your viewController (its next to the size and attributes inspector buttons) and remove the connection for your backgroundImageView. then control + click and drag from your imageView on your storyboard (make sure you have the imageView selected first) to your header and create the outlet again, making sure that its class is UIImageView, not UIView, and name it the same as before
Josh Holder
1,207 PointsThank you!
Turns out I had connected the entire UIView and not just the background. Switched that around and now it works, cheers!