设置简单的类似水纹效果

#import "ViewController.h"

@interface ViewController ()

@property (nonatomic, retain) UIImageView *imageView;

@end

@implementation ViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

// Do any additional setup after loading the view, typically from a nib.

    

    self.imageView = [[[UIImageView alloc]initWithFrame:CGRectMake(0.0, 0.0, self.view.frame.size.width, self.view frame.size.height)] autorelease];

    self.imageView.image:[UIImage imageNamed:@"example.png"];

    

    self.imageView.userInteractionEnabled = YES;

    

    UITapGestureRecognizer *singleTap = [[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(show:)] autorelease];

    

    [self.imageView addGestureRecognizer:singleTap];

    

    [self.view addSubview:self.imageView];

    

}

- (void)show:(id)sender {

    CATransition *transition = [CATransition animation];

    transition.type = @"Tipple";

    transition.duration = 2.0f;

    transition.timingFunction = UIViewAnimationCurveEaseInOut;      //简单的水纹动画效果

    [self.imageView.layer addAnimation:transition forKey:@"transitionViewAnimation"];

    //[UIView animateWithDuration:5.0 delay:5.0 options:UIViewAnimationOptionCurveEaseIn animations:nil completion:nil];

    //可以设置动画结束后的事件,animations和completion都为block

}

- (void)didReceiveMemoryWarning

{

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

- (void)dealloc {

    [self.imageView release];

    [super dealloc];

}

@end