view 放大缩小动画效果

1. //创建缩小了的视图  
2. myWeiBoImageVC = [[UIViewController alloc] init];  

myWeiBoImageVC.view.clipsToBounds = YES;  

myWeiBoImageVC.view.alpha = 0.0;  

myWeiBoImageVC.view.frame = CGRectMake(64, 0, 1024-64, 768-20);  

[self.view addSubview:myWeiBoImageVC.view];  

      

CGAffineTransform newTransform =   

CGAffineTransformScale(myWeiBoImageVC.view.transform, 0.1, 0.1);  

[myWeiBoImageVC.view setTransform:newTransform];  

myWeiBoImageVC.view.center = CGPointMake(670, 100);  

   

[self performSelector:@selector(imageViewControllerBigAnimation)];  

  

//放大刚刚创建缩小后的视图  

- (void)imageViewControllerBigAnimation{  

     

    [UIView beginAnimations:@"imageViewBig" context:nil];  

    [UIView setAnimationDuration:0.5];     

    CGAffineTransform newTransform =            CGAffineTransformConcat(myWeiBoImageVC.view.transform,  CGAffineTransformInvert(myWeiBoImageVC.view.transform));  

    [myWeiBoImageVC.view setTransform:newTransform];  

    myWeiBoImageVC.view.alpha = 1.0;  

    myWeiBoImageVC.view.center = CGPointMake(416, 510)；  

    [UIView commitAnimations];  

     

}  

  

//缩小视图 隐藏  

  

- (void)imageViewControllerSmallAnimation{  

  

    [UIView beginAnimations:@"imageViewSmall" context:nil];  

    [UIView setAnimationDuration:0.5];  

    CGAffineTransform newTransform =  CGAffineTransformScale(myWeiBoImageVC.view.transform, 0.1, 0.1);  

    [myWeiBoImageVC.view setTransform:newTransform];  

    myWeiBoImageVC.view.center = CGPointMake(670, 100);  

    [UIView commitAnimations];  

     

}