////  ViewController.m//  05-transform#import "ViewController.h"@interface ViewController ()@property (nonatomic, strong) UIView *tempView;//@property (nonatomic, assign) CGFloat angle;@end@implementation ViewController- (void)viewDidLoad {    [super viewDidLoad];        UIView *tempView = [[UIView alloc] initWithFrame:CGRectMake(100, 100, 100, 100)];    [tempView addSubview:[[UISwitch alloc] init]];    tempView.backgroundColor = [UIColor redColor];    tempView.transform = CGAffineTransformMakeRotation(M_PI_4);    [self.view addSubview:tempView];    self.tempView = tempView;}- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {    // 清空transform，以前的平移、缩放、旋转都会消失    [UIView animateWithDuration:2.0 animations:^{        self.tempView.transform = CGAffineTransformIdentity;            }];    //    self.angle += M_PI_4;    //    [UIView animateWithDuration:1.0 animations:^{
    ////        self.tempView.transform = CGAffineTransformScale(self.tempView.transform, 0.8, 0.8);//        self.tempView.transform = CGAffineTransformRotate(self.tempView.transform, M_PI_4);//    }];            // transform:形变属性，能完成的功能：平移、缩放、旋转//    [UIView animateWithDuration:2.0 animations:^{//        // 缩放//        self.tempView.transform = CGAffineTransformMakeScale(0.5, 0.5);//        // 平移//        self.tempView.transform = CGAffineTransformMakeTranslation(-100, 100);        // 旋转//        self.tempView.transform = CGAffineTransformMakeRotation(-M_PI_4);        //        CGAffineTransform translation = CGAffineTransformMakeTranslation(-100, 100);//        CGAffineTransform scaleTranslation = CGAffineTransformScale(translation, 0.5, 0.5);//        CGAffineTransform rotateScaleTranslation = CGAffineTransformRotate(scaleTranslation, M_PI_2);//        self.tempView.transform = rotateScaleTranslation;//    }];}@end