UIButton实现控制动画的开始和停止

import “ViewController.h”

@interface ViewController ()

@property(nonatomic,retain)UIImageView *imageView;

@end

@implementation ViewController

- (void)dealloc

{

self.imageView = nil;

[super dealloc];

}

- (void)viewDidLoad {

[super viewDidLoad];

self.view.backgroundColor = [UIColor grayColor];

UIImage *image = [UIImage imageNamed:@"Zombie0.tiff"];

self.imageView = [[UIImageView alloc]initWithImage:image];

_imageView.frame = CGRectMake(60, 60, 160, 240);

[self.view addSubview:_imageView];

[_imageView release];

UIButton *button = [UIButton buttonWithType:UIButtonTypeSystem];

button.backgroundColor = [UIColor brownColor];

button.frame = CGRectMake(140, 360, 40, 30);

[button setTitle:@"开始" forState:UIControlStateNormal];

[self.view addSubview:button];

//添加关联事件

[button addTarget:self action:@selector(controlAnimation:) forControlEvents:UIControlEventTouchUpInside];

}

- (void)controlAnimation:(UIButton *)sender{

//取出button上的title

NSString *title = [sender titleForState:UIControlStateNormal];

//判断title是否和@"开始"相同,相同则开始动画,并修改标题为@"停止",如果不相同,则停止动画,并修改标题为@"开始"

if ([title isEqualToString:@"开始"]) {

[self aninationWithImageName:@"Zombie"andImageCount:21];

[sender setTitle:@"停止" forState:UIControlStateNormal];
} else {
[_imageView stopAnimating];

[sender setTitle:@"开始" forState:UIControlStateNormal];
}

}

(void)aninationWithImageName:(NSString *)names andImageCount:(int )count{

if (_imageView.isAnimating) {

return;

}

NSMutableArray *imageArray = [NSMutableArray array];

for (int i = 0; i < count; i++) {

NSString *name = [NSString stringWithFormat:@"%@%d.tiff",names,i];

UIImage *image = [UIImage imageNamed:name];

[imageArray addObject:image];

_imageView.animationImages = imageArray;

_imageView.animationDuration = imageArray.count * 0.03;

_imageView.animationRepeatCount = 0;

[_imageView startAnimating];

}

}