ios调用系统的相册加载头像

#import "ViewController.h"

@interface ViewController () <UINavigationControllerDelegate, UIImagePickerControllerDelegate>


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

@property (weak, nonatomic) IBOutlet UILabel *label;

@property (nonatomic, strong) UIImagePickerController * picker;

@end

@implementation ViewController

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

- (void)initImageView {
    
      //圆角半径裁剪
    _imageView.layer.cornerRadius = 30;
    //执行裁剪
    _imageView.layer.masksToBounds = YES;
    _imageView.backgroundColor = [UIColor groupTableViewBackgroundColor];
    _imageView.userInteractionEnabled = YES;
    
   
    
    UITapGestureRecognizer * tapGR = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
    
    [self.imageView addGestureRecognizer:tapGR];
    
    [self.view addSubview:self.imageView];
}

- (void)tapped:(UITapGestureRecognizer *)tap {

    
    [self presentViewController:self.picker animated:YES completion:nil];

}

#pragma mark - 协议方法

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {

    UIImage * image = info[UIImagePickerControllerOriginalImage];
    
    self.imageView.image = image;
    
    [self.view addSubview:self.imageView];
    
    [self dismissViewControllerAnimated:YES completion:nil];


}

#pragma mark - 懒加载相册
- (UIImagePickerController *)picker {

    if (_picker == nil) {
        _picker = [[UIImagePickerController alloc] init];
        //相册
        _picker.sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
        _picker.delegate = self;
        
    }
    return _picker;
}

@end

#import <UIKit/UIKit.h>

@interface LibraryViewController : UIViewController

@end

#import "LibraryViewController.h"

@interface LibraryViewController ()

@property (nonatomic, strong) UIImagePickerController * picker;

@end

@implementation LibraryViewController

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



@end

ios调用系统的相册加载头像.png