UIImage and prepareforSegue not able to pass the image

Question

Here my code :

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

    - (IBAction)cropImageTap:(id)sender {

        [self dismissViewControllerAnimated:YES completion:^{
             UIImage * pickedImage = self->_chosedImage;
            //[UIImage imageNamed:@"helloWorld.jpg"];

            [self performSegueWithIdentifier:@"gotomainimage" sender:pickedImage];

        }];
    }

And my perform segue is below :

 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
    {


        PostVC *vc = (PostVC*)segue.destinationViewController;
        UIImage *img = (UIImage*)sender;

        if (img.images == nil) {
            NSLog(@"null img");
             vc.Sourcemage = img;
        }
        else {

             NSLog(@"not null img");
             vc.Sourcemage = img;
        }

    }

I am getting null image only.My image is not coming.What the issue i am doing here ?

Please help me out

UPDATED :

My updated code, work like - giving me console message like :

its null dataa - post vc its not an null image - prepareForSegue method

Not able to find out why ist happening.

     - (IBAction)cropImageTap:(id)sender {


        UIImageView * pickedImage = _chosedImage;
        [self dismissViewControllerAnimated:YES completion:^{
            [self performSegueWithIdentifier:@"gotomainimage" sender:pickedImage.image];
        }];
    }

    - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
    {

        PostVC *vc = (PostVC*)segue.destinationViewController;
        UIImage *img = (UIImage*)sender;

        if (img != nil) {
             NSLog(@"its not an null image");
            vc.Sourcemage = img;

        } else {
             NSLog(@"its an null image");
        }
    }

in my postvc :

    @property(nonatomic) UIImage *Sourcemage;
    - (void)viewWillAppear:(BOOL)animated {
        [super viewWillAppear:animated];



        if (self.Sourcemage != nil){
            NSLog(@"not null dataa");

            _PostImageView.image = _Sourcemage;

        } else {
    NSLog(@"not null dataa");
           _PostImageView.image = [UIImage imageNamed:@"Travel.png"];
        }


    }

I suggest you to use this link https://stackoverflow.com/questions/31576232/passing-image-to-another-view-controller-swift — Vinaykrishnan, May 24 '18 at 09:04
Your view controller, that holds the image, is dismissed in the completion block. Try to put this: UIImage * pickedImage = self->_chosedImage; one line above. — Cristian, May 24 '18 at 09:06
@Cristian i am getting thsi warning `iincompatible pointer types initializing 'UIImage *' with an expression of type 'UIImageView *'` — chandru kin, May 24 '18 at 09:16
@chandrukin That warning was because you were passing an UIImageView to an UIImage, but I see that you figured that out. There may be a problem with your _PostImageView, you can check its frame by displaying it in the console, or make sure you don't have other view that covers your _PostImageView, by having it displayed above _PostImageView. — Cristian, May 24 '18 at 10:39
@chandrukin If you just put this line in your viewWillAppear: _PostImageView.image = [UIImage imageNamed:@"Travel.png"]; does the image show? (assuming that you have that image in your xcode project) . If it shows, then most likely it's not a problem here, but in your initial controller, from where you are initially passing the image. If it doesn't show, then most likely there is a problem with your _PostImageView, and you will have to check its frame, position and hierarchy. — Cristian, May 24 '18 at 10:56
@chandrukin If you get rid of the [self dismissViewControllerAnimated:YES completion:^{ ..... }]; line and just keep performSegueWithIdentifier what do you get? Also seems odd that you are dismissing a controller and performing a segue right after. Try to get rid of this approach, let only the performSegueWithIdentifier and see what you get. — Cristian, May 24 '18 at 11:07

score 0 · Answer 1 · answered May 24 '18 at 09:32

0

Is the variable Sourcemage in your destination viewcontroller(PostVC) is UIImage?

Please check whether the property is UIImage or not.

answered May 24 '18 at 09:32

Rakesh Ingle

1
1

@property (nonatomic, strong) UIImage* Sourcemage; its in my postvc.h – chandru kin May 24 '18 at 09:33

score 0 · Answer 2 · answered May 24 '18 at 10:04

0

This is because you are passing UIImageView instead of UIImage

Update your code as below,

UIImageView * pickedImage = _chosedImage;
[self dismissViewControllerAnimated:YES completion:^{
   [self performSegueWithIdentifier:@"gotomainimage" sender:pickedImage.image];
}];

in above code, you must pass UIImage not UIImageView itself and handle it like this,

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    PostVC *vc = (PostVC*)segue.destinationViewController;
    UIImage *img = (UIImage*)sender;
    vc.Sourcemage = img;
}

answered May 24 '18 at 10:04

PPL

6,357
1
11
30

NOW Image is coming but in my postvc ist not showing that is the isses..like here `_PostImageView.image = _Sourcemage;` – chandru kin May 24 '18 at 10:12
are you getting pickedImage.image? – PPL May 24 '18 at 10:14
what you actually want to do? – PPL May 24 '18 at 10:21
from one vc to another vc i am passing the image to show.That only not shoing – chandru kin May 24 '18 at 10:22
after updated ur code, `pickedImage` itself getting null value – chandru kin May 24 '18 at 10:22
Yes that is the thing, it is null, try to pass UIImage object there and you will get succeed – PPL May 24 '18 at 10:23
but i dont want to pass the uiimage view of `_chosedImage`.this only holding the image selction..so only – chandru kin May 24 '18 at 10:24
try passing _chosedImage.image – PPL May 24 '18 at 10:25
please check my full updated code..ist not happening.please give me some solution..i m hittig more than 1 hr – chandru kin May 24 '18 at 10:35
Any luck in this issues ?? – chandru kin May 24 '18 at 10:52

score 0 · Answer 3 · answered May 24 '18 at 13:23

0

Why don't you just do like this?

- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
    PostVC *vc = (PostVC*)segue.destinationViewController;
    vc.Sourcemage = _checkedImage;
}

answered May 24 '18 at 13:23

Gray Wind

56
5

UIImage and prepareforSegue not able to pass the image

3 Answers3