UIView的 形变属性transform

//  ViewController.m
//  形变属性transform
//
//  Created by LiuWei on 2018/4/23.
//  Copyright © 2018年 xxx. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@property (weak, nonatomic) IBOutlet UIView *orangeV;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
       
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event {
    
    // CGAffineTransformMakeScale:  参数是x,y缩放比例系数 每次都是以最初位置的中心点为参考 就是说效果不会叠加
    self.orangeV.transform = CGAffineTransformMakeScale(2, 3);
    
    // CGAffineTransformScale ： 每次都是以传入的transform为参照（既 有叠加效果）
    self.orangeV.transform = CGAffineTransformScale(self.orangeV.transform, 4, 2);
    
    self.orangeV.transform = CGAffineTransformIdentity;  //最初位置的中心点  一般可以作为CGAffineTransformScale的第一个参数 下面是效果
    self.orangeV.transform = CGAffineTransformScale(CGAffineTransformIdentity, 1, 2);//动一次
    self.orangeV.transform = CGAffineTransformTranslate(self.orangeV.transform, 0, 50);//不停的动

    
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}


@end