Question

我很难过这个。我正在使用一个转移过的图像文件，它位于类公共属性中。日志文件显示self.image和newImage仍然指向UIImage文件。但是，无论我如何设置initWithImage，self.imageView.image的值最终都是（null）。

注意：imageView是一个合成的私有类属性。

- (void)viewDidLoad
{
    [super viewDidLoad];

    self.view.frame = (CGRect){.origin=CGPointMake(0.0f, 0.0f), .size=self.image.size};
    UIImage *newImage = self.image;
    self.imageView = [[UIImageView alloc] initWithImage:newImage];

    [self.imageView setFrame: (CGRect){.origin=CGPointMake(0.0f, 0.0f), .size=self.image.size}];
    [self.scrollView addSubview:self.imageView];

self.scrollView.contentSize = self.image.size;


NSLog(@"Image in self.image : %@ Image for imageView %@ and new Image is : %@", self.image, self.imageView.image, newImage);

self.image来自第一个视图控制器：

-(void)imagePickerController:
(UIImagePickerController *)picker
didFinishPickingMediaWithInfo:(NSDictionary *)info
{
NSString *mediaType =
[info objectForKey:UIImagePickerControllerMediaType];

if ([mediaType isEqualToString:(NSString *)kUTTypeImage])
{
    self.imageToBePassed = [info objectForKey:UIImagePickerControllerOriginalImage];
    [picker dismissViewControllerAnimated:NO completion:^(){
        AngleMeasureViewController *angleMeasureViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"AngleMeasureViewController"];
        angleMeasureViewController.delegate = (id)self;
        angleMeasureViewController.image = self.imageToBePassed;

        NSLog(@"image passed to Angle Measure View Controller : %@", angleMeasureViewController.image);

        [self.navigationController pushViewController:angleMeasureViewController animated:YES];
    }];


}

如何在下一个视图控制器中声明它的合成：

头文件中的

@property (nonatomic,retain) UIImage *image;

<。> <。>

@implementation AngleMeasureViewController

@synthesize delegate = _delegate;
@synthesize image = _image;

UIImageView initWithImage：self.image显示为null

0 个答案: