UIImagePickerController类来完成控制。UIImagePickerController
self.imagePickerController.sourceType设置成相机Type
self.imagePickerController.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
- (void)viewDidLoad {[super viewDidLoad];// Do any additional setup after loading the view.self.imageViewAvatar = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"IMG_2400.JPG"]];// 为imageVIew添加点击事件self.imageViewAvatar.userInteractionEnabled = YES;UITapGestureRecognizer* tapGester = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAvator)];self.imageViewAvatar.frame = CGRectMake(140, 200, 90, 90);[self.imageViewAvatar addGestureRecognizer:tapGester];[self.view addSubview:_imageViewAvatar];
}


imagePickerController:(UIImagePickerController *)picker是UIImagePickerController提供的三个代理方法之一// 取消选择,点击界面中的取消(Cancel)按钮时触发
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {}// 选择完成,点击界面中的某个图片或者选择(Choose)按钮时触发
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {}

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