UIView

Core Animation编程指南：
http://developer.apple.com/library/ios/#documentation/Cocoa/Conceptual/CoreAnimation_guide/Introduction/Introduction.html

http://blogs.iteye.com/blog/513067


//图片放大 与缩小

		[UIView beginAnimations:nil context:UIGraphicsGetCurrentContext()];  
		[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];  
		[UIView setAnimationDuration:1.4f];  
		image.transform = CGAffineTransformMakeScale(5.15f, 5.15f);  
		[UIView commitAnimations];  
		

		[UIView beginAnimations:nil context:UIGraphicsGetCurrentContext()];  
//		[UIView setAnimationStartDate:[NSData data]];	
//	动画在commitAnimations 返回之后的发生日期。缺省立即执行

//		[UIView setAnimationDelay:NSTimeInterval];	
//	实际发生动画和commitAnimations方法返回的时间点之间的间隔

		[UIView setAnimationDuration:0.3f];  	//	动画持续的秒数
		[UIView setAnimationCurve:UIViewAnimationCurveEaseInOut];  
//设置动画过程的相对速度，匀速、加速、减速

		[UIView setAnimationRepeatCount:3.0f];	//	动画的重复次数。
		[UIView setAnimationRepeatAutoreverses:YES];	
//动画在到达目标值时是否自动反向播放。
	
		image.transform = CGAffineTransformMakeScale(1.0f, 1.0f);  
		[UIView commitAnimations]; 

http://wsqwsq000.iteye.com/blog/1189183