iOS相册图片的选取与设置

我的模块中常常用户的头像可以用户自定义自己的头像，可以选择拍照也可以选择从用户的自己的相册中选择，具体的实现代码如下：

@interface PickerViewController : UIViewController<UIImagePickerControllerDelegate,UIActionSheetDelegate,UINavigationControllerDelegate>

//名字
@property (weak, nonatomic) IBOutlet UILabel *namelabel;
//头像
@property (weak, nonatomic) IBOutlet UIImageView *iconView;
//actionsheet底部弹窗
@property (nonatomic,strong) UIActionSheet *actionSheet;

- (void)viewDidLoad {
    [super viewDidLoad];
    self.namelabel.text = @"XXX";
    self.iconView.image = [UIImage imageNamed:@"IMG_1743"];
    self.iconView.layer.masksToBounds = YES;
    self.iconView.layer.cornerRadius = 40;
    self.iconView.userInteractionEnabled = YES;
    //给头像添加点击手势
    UITapGestureRecognizer *ges = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapClick)];
    [self.iconView addGestureRecognizer:ges];

- (void)tapClick {
    NSLog(@"打开相册");
    
    if ([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
        self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择图像" delegate:self cancelButtonTitle:@"取消" destructiveButtonTitle:nil otherButtonTitles:@"拍照",@"从相册选取", nil];
    }else {
        self.actionSheet = [[UIActionSheet alloc] initWithTitle:@"选择图像" delegate:self cancelButtonTitle:@"取消"destructiveButtonTitle:nil otherButtonTitles:@"从相册选择",nil];
    }
    self.actionSheet.tag = 1000;
    [self.actionSheet showInView:self.view];
    
}

- (void)actionSheet:(UIActionSheet *)actionSheet clickedButtonAtIndex:(NSInteger)buttonIndex {
    if (actionSheet.tag == 1000) {
        NSUInteger sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        // 判断是否支持相机
        if([UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypeCamera]) {
            switch (buttonIndex) {
                case 0:
                    //来源:相机
                    sourceType = UIImagePickerControllerSourceTypeCamera;
                    break;
                case 1:
                    //来源:相册
                    sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
                    break;
                case 2:
                    return;
            }
        }
        else {
            if (buttonIndex == 2) {
                return;
            } else {
                sourceType = UIImagePickerControllerSourceTypeSavedPhotosAlbum;
            }
        }
        // 跳转到相机或相册页面
        UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
        imagePickerController.delegate = self;
        imagePickerController.allowsEditing = YES;
        imagePickerController.sourceType = sourceType;
        
        [self presentViewController:imagePickerController animated:YES completion:^{
            
        }];
    }
}

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    [picker dismissViewControllerAnimated:YES completion:^{
        
    }];
    
    UIImage *image = [info objectForKey:UIImagePickerControllerOriginalImage];
    self.iconView.image = image;
//    self.namelabel.text = image.description;
}