iOS开发-照片选择

@property (weak, nonatomic) IBOutlet UIImageView *imageView;

//选择头像
- (IBAction)chooseImage:(id)sender {
    //实例化照片选择控制器
    UIImagePickerController *pickControl=[[UIImagePickerController alloc]init];
    
    //设置照片源
    [pickControl setSourceType:UIImagePickerControllerSourceTypePhotoLibrary];
    
    //设置协议
    [pickControl setDelegate:self];
    
    //设置编辑
    [pickControl setAllowsEditing:YES];
    
    //选完图片之后回到的视图界面
    [self presentViewController:pickControl animated:YES completion:nil];
    
 
}

@interface ViewController : UIViewController <UINavigationControllerDelegate,UIImagePickerControllerDelegate>
 
@property (weak, nonatomic) IBOutlet UIImageView *imageView;
 
@end

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
    
//    UIImage *image=info[@"UIImagePickerControllerOriginalImage"];
    
     UIImage *image=info[@"UIImagePickerControllerEditedImage"];
    
    [self.imageView setImage:image];
    
    //选取完图片之后关闭视图
    [self dismissViewControllerAnimated:YES completion:nil];
   
}

UIImage *image=info[@"UIImagePickerControllerOriginalImage"];