imageView不显示来自UIImagePickerController的图像

Question

我正在尝试以编程方式在一个视图控制器中使用来自UIImagePickerController的图像，并将其作为另一个视图控制器中的imageView。这是viewController A的方法

- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info{
UIImage *image = info[UIImagePickerControllerOriginalImage];

 bandCropViewController *viewController = [[bandCropViewController alloc]init];
 viewController.imageOriginal = image;
[self dismissViewControllerAnimated:YES completion:^{
 // Move to Crop View Controller
 [self presentViewController:viewController animated:YES completion:nil];
}];
}

ViewController B看起来像这样：

- (void)viewDidLoad
{
  [super viewDidLoad];
  imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 100, 320, 280)];
  [self.imageView setImage:imageOriginal];
  imageView.backgroundColor = [UIColor redColor];
  [self.view addSubview:imageView];
}

viewController B正在以红色显示imageView框架。但图像并没有延续下去。

关于我做错了什么的想法？

Answer 1

强烈推荐this tutorial

它应该可以帮到你。看起来你可能正在做一些不必要的事情

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