IOS开发（89）之动画之视图的缩放

1 前言
今天我们学习一下如何为你的视图创建一个仿射缩放变换并使用 UIView 的动画方法来执行缩放变换。

2 代码实例
ZYViewController.m：

[plain] - (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    UIImage *xcodeImage = [UIImage imageNamed:@"Xcode.png"];
    self.xcodeImageView = [[UIImageView alloc] initWithImage:xcodeImage];
    //设置图片的Frame
    [self.xcodeImageView setFrame:CGRectMake(0.0f,0.0f, 100.0f, 100.0f)];
    self.view.backgroundColor = [UIColor whiteColor];
    [self.view addSubview:self.xcodeImageView];
}

- (void) viewDidAppear:(BOOL)paramAnimated{ [super viewDidAppear:paramAnimated];
    /* Place the image view at the center of the view of this view controller */
    self.xcodeImageView.center = self.view.center;
    //设置转换标识
    self.xcodeImageView.transform = CGAffineTransformIdentity;
    /* Begin the animation */
    [UIView beginAnimations:nil context:NULL];
    /* Make the animation 5 seconds long */
    [UIView setAnimationDuration:5.0f];
    //图形放大两倍
    self.xcodeImageView.transform = CGAffineTransformMakeScale(2.0f, 2.0f);
    /* Commit the animation */
    [UIView commitAnimations];
}

补充：移动开发 , IOS ,