（5.17）简单动画

- (IBAction)button:(UIButton *)sender
{
    
    
    
if (sender.tag == 0) {
       
 
   
//计算view的frame属性
        NSString
*frame = NSStringFromCGRect(_view1.frame);
       
NSString *outframe = [NSString
stringWithFormat:@"frame:%@",frame];
        [_message
setText:outframe];

    }else if(sender.tag ==
1){
     
//计算view的bounds属性
        NSString
*bounds = NSStringFromCGRect(_view1.bounds);
       
NSString *outbounds = [NSString
stringWithFormat:@"bounds:%@",bounds];
        [_message
setText:outbounds];
      
 
    }else
if(sender.tag == 2){
       
//计算view的center属性
        NSString
*center = NSStringFromCGPoint(_view1.center);
       
NSString *outcenter = [NSString
stringWithFormat:@"center:%@",center];
        [_message
setText:outcenter];
      
 
    }else if
(sender.tag == 3){
      
//图像角度转向
       
CGAffineTransform tranR =CGAffineTransformRotate(_view1.transform,
M_PI_4);
 //早期的动画实现
//       
//设定动画效果
//        [UIView
beginAnimations:nil context:nil];
//       
//设定动画时间长度
//        [UIView
setAnimationDuration:1.0];
//      
 
//        [_view1
setTransform:tranR];
//        // 
提交动画效果
//        [UIView
commitAnimations];
//
      
 
   
//block动画方法
        [UIView
animateWithDuration:(1.0f) animations:^{
            
[_view1 setTransform:tranR];
       
}];

      
 
    }else
if(sender.tag == 4){
       
//图像放大
       
CGAffineTransform tranS = CGAffineTransformScale(_view1.transform, 1.2,
1.2);
      
//block动画方法
        [UIView
animateWithDuration:(1.0f) animations:^{
           
[_view1 setTransform:tranS];
       
}];
      
 

  
 
    }else
if(sender.tag == 5){
       
//图像缩小
       
CGAffineTransform tranR = CGAffineTransformScale(_view1.transform, 1/1.2,
1/1.2);
       
//block动画方法
        [UIView
animateWithDuration:(1.0f) animations:^{
             
[_view1 setTransform:tranR];
       
}];

      
 
    }else if
(sender.tag == 6){
      
//图像平移
       
CGAffineTransform tranM = CGAffineTransformTranslate(_view1.transform , 0,
20);
      
 
    
//block动画方法的嵌套
        [UIView
animateWithDuration:1.0f animations:^{
            
[_view1 setTransform:tranM];
        }
completion:^(BOOL finished) {
           
[UIView animateWithDuration:1.0f animations:^{
               
[_view1 setBackgroundColor:[UIColor redColor]];
               
[_view1 setAlpha:0.1f];
           
}];
       
}];
      
 
      
 
   
}
    
 
 

    
    
  
 
}
@end