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[操作系统]【代码笔记】图片旋转


代码:

RootViewController.h

#import <UIKit/UIKit.h>@interface RootViewController : UIViewController@end

 

RootViewController.m

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- (void)viewDidLoad{  [super viewDidLoad];  // Do any additional setup after loading the view.      UIImage * image = [UIImage imageNamed:@"1.jpg"];  NSData * tempData;  if (UIImagePNGRepresentation(image)) {    tempData = UIImagePNGRepresentation(image);    NSLog(@"%@",tempData);  }  else{    tempData = UIImageJPEGRepresentation(image, 1);  }  CIImage * iImg = [CIImage imageWithData:tempData];  UIImage * tImg = [UIImage imageWithCIImage:iImg scale:1 orientation:UIImageOrientationRight];  NSLog(@"%@",UIImagePNGRepresentation(tImg));  UIImageView * imageView = [[UIImageView alloc]initWithFrame:CGRectMake(10, 200, 200, 80)];  imageView.image = tImg;  [self.view addSubview:imageView];  }
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