在ViewController.m中
- (void)viewDidLoad {
[super viewDidLoad];
self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"tutu.png"]];
self.imageView.frame = CGRectMake(100, 100, 100, 100);
[self.view addSubview:self.imageView];
//添加一个计时器，scheduledTimerWithTimeInterval参数代表 多长时间执行一次，
[NSTimer scheduledTimerWithTimeInterval:1 target:self selector:@selector(zhuanzhuan) userInfo:nil repeats:YES];
}
-(void)zhuanzhuan{
[UIView animateWithDuration:1.0f animations:^{
__weak typeof(self)pSelf = self;
//根据nstimer的设置，到这里一秒执行一次旋转，
//让一个view 按照它的本身的transform 去改变 transform 可以多次执行
//第一个参数 获取一个view transform
//第二个参数 旋转的角度
self.imageView.transform = CGAffineTransformRotate(self.imageView.transform, M_PI/2);
//，同样的缩放也是一秒一次
if (self.imageView.frame.size.width>200) {
pSelf.imageView.transform = CGAffineTransformScale(pSelf.imageView.transform, 0.5, 0.5);
NSLog(@"2");
}else{
pSelf.imageView1.transform = CGAffineTransformScale(pSelf.imageView.transform, 2, 2);
NSLog(@"1");
}
//从屏幕的四周走一遍
if (pSelf.imageView.frame.origin.x == 0 && pSelf.imageView.frame.origin.y == 0) {
pSelf.imageView.transform = CGAffineTransformTranslate(pSelf.imageView.transform, pSelf.view.frame.size.width - 200, 0);
} else if (pSelf.imageView.frame.origin.x == pSelf.view.frame.size.width - 200 && pSelf.imageView.frame.origin.y == 0) {
pSelf.imageView.transform = CGAffineTransformTranslate(pSelf.imageView.transform, 0, pSelf.view.frame.size.height - 200);
} else if (pSelf.imageView.frame.origin.x == pSelf.view.frame.size.width - 200 && pSelf.imageView.frame.origin.y == pSelf.view.frame.size.height - 200) {
pSelf.imageView.transform = CGAffineTransformTranslate(pSelf.imageView.transform, -(pSelf.view.frame.size.width - 200), 0);
} else {
pSelf.imageView.transform = CGAffineTransformTranslate(pSelf.imageView.transform, 0, -(pSelf.view.frame.size.height - 200));
}
}
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
[UIView animateWithDuration:1.0f animations:^{
//设置View的属性为旋转， 就一个参数代表旋转的角度 ,仅仅只是旋转一下，
// self.imageView.transform = CGAffineTransformMakeRotation(M_PI /4);
//设置View的属性为缩放， 分别代表的是X方向 y方向放大的范围 ，缩放一下
// self.imageView1.transform = CGAffineTransformMakeScale(2, 2);
//设置View的transform为平移 两个参数 分别代表X方向 y方向， 平移的范围+ 和一切代表方向 平移一下
self.imageView1.transform = CGAffineTransformMakeTranslation(100, 100);
}];
}