02.1--transform(形变)

一、平移+旋转+缩放

#import "ViewController.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UIImageView *imageV;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}
- (IBAction)transform:(id)sender {
    [UIView animateWithDuration:0.5 animations:^{
        //1、平移
        /**
         CGAffineTransform带make与不带make区别?
         1.带make相对的最原始的位置做形变操作.(一般只用做一次形变.)
         
         2.不带make是相对于指定的形变开始进行.
         相对于上一次操作(一般用于做多次形变.)
        */
        //        self.imageV.transform = CGAffineTransformMakeTranslation(0, 300);
//        self.imageV.transform = CGAffineTransformTranslate(self.imageV.transform, 0, 50);
        
        //2、旋转
        //参数:旋转的角度(是弧度)
        //self.imageV.transform = CGAffineTransformMakeRotation(M_PI);
//        self.imageV.transform = CGAffineTransformRotate(self.imageV.transform, M_PI_2);
        
        //3、缩放
        //缩放比例(1代表是原始大小.)
        //self.imageV.transform = CGAffineTransformMakeScale(1.5, 1.5);
        //self.imageV.transform = CGAffineTransformScale(self.imageV.transform, 1.5, 1.5);
//        self.imageV.transform = CGAffineTransformScale(self.imageV.transform, 0.8, 0.8);
        
    }];
  
}