Objective C: How to fit the image inside the imageview

Question

I am using the UIImagePickerController to select images for my app. But I am facing a issue with the aspect ratio of the selected images.The image is showing larger than its original size and the complete image is not shown.I have tried changing UIViewContentMode property to all possible values still no use.Can anyone guide me how to make it work in?

Here is the implementation of UIImagePickerController delegate

- (void)imagePickerController:(UIImagePickerController *)picker
        didFinishPickingImage:(UIImage *)image
                  editingInfo:(NSDictionary *)editingInfo {

     self.imageProfile.contentMode = UIViewContentModeScaleAspectFit;
     self.imageProfile.image = image;
     [picker dismissViewControllerAnimated:YES completion:nil];

}

Show us your implementation of `UIImagePickerControllerDelegate` — EmilioPelaez, Jun 07 '17 at 11:03
Adjust your image height according your image width and your aspect ratio, check this answer maybe can help you to find out https://stackoverflow.com/questions/44338392/swift-dynamic-uitableviewcell-size-based-on-image-aspect-ratio/44339968#44339968 — Reinier Melian, Jun 07 '17 at 11:34
@ReinierMelian Yeah i tried giving the image height and width to the imageview ..even then it is not displaying full image. — Zeenath Yousuff, Jun 07 '17 at 11:39
@ZeenathYousuff ok, i will try to help you, you are using autolayouts?, you can also post the current image aspect and desired? — Reinier Melian, Jun 07 '17 at 11:40
@ZeenathYousuff your image don't show all the content in width or height or both, can you please post the current status?, is more likely that your problem is related to constraints — Reinier Melian, Jun 07 '17 at 11:52

Reinier Melian · Answer 1 · 2017-06-07T12:29:09.410

Well as you are using autolayouts, first define an outlet with your image height constraint will called imageHeightConstraint and then modify your code with this one

- (void)imagePickerController:(UIImagePickerController *)picker
        didFinishPickingImage:(UIImage *)image
                  editingInfo:(NSDictionary *)editingInfo {

     float aspectRatio = image.size.height/image.size.width
     self.imageProfile.contentMode = UIViewContentModeScaleAspectFit;
     self.imageProfile.image = image;
     [self.imageHeightConstraint setConstant: self.imageProfile.frame.size.width * aspectRatio];
     [picker dismissViewControllerAnimated:YES completion:nil];
}

EDITED

this is my code

#import "ViewController.h"

@interface ViewController () <UINavigationControllerDelegate,UIImagePickerControllerDelegate>
@property (weak, nonatomic) IBOutlet UIImageView *imageProfile;
@property (weak, nonatomic) IBOutlet NSLayoutConstraint *imageConstraintHeigth;

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
}


- (IBAction)selectImage:(id)sender {

    UIImagePickerController *picker = [[UIImagePickerController alloc] init];
    picker.delegate = self;
    picker.allowsEditing = YES;
    picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;

    [self presentViewController:picker animated:YES completion:NULL];
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

    - (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingImage:(UIImage *)image editingInfo:(nullable NSDictionary<NSString *,id> *)editingInfo{

    float aspectRatio = image.size.height/image.size.width;
    self.imageProfile.contentMode = UIViewContentModeScaleAspectFit;
    self.imageProfile.image = image;
    //this if you need adjust heigth according to width
    [self.imageConstraintHeigth setConstant: self.imageProfile.frame.size.width * aspectRatio];

    [picker dismissViewControllerAnimated:YES completion:nil];
}



@end

and this are my constraints

I hope this help, for me works just fine

@ZeenathYousuff Do you have fixed constraints for width and height?, if don't you must add those because the UIImageView class have intrinsic content size and is growing according the image content — Reinier Melian, Jun 07 '17 at 12:03
@ZeenathYousuff I will make my own example, and post my results — Reinier Melian, Jun 07 '17 at 12:08
@ZeenathYousuff I will make my own example, and post my results, you need your image showing in a fixed width and height don't you? — Reinier Melian, Jun 07 '17 at 12:09
@ZeenathYousuff my answer was edited, i you need further aclarations you must wait y have to leave now, but latter i will check this answer again — Reinier Melian, Jun 07 '17 at 12:30
This is what even i have done but i don't know why it is not working for me.Pease post the sample you have done so can check it. — Zeenath Yousuff, Jun 07 '17 at 12:34
@ZeenathYousuff check this is my repo https://github.com/rmelian2014/SOImagePickerExampleOBj — Reinier Melian, Jun 07 '17 at 17:39
Yeah I checked the sample you have posted and i can see the same result there as well . Actually i am checking in ipad where image shows a very small section of the original image which is enlarged and distorted. — Zeenath Yousuff, Jun 08 '17 at 12:05

Objective C: How to fit the image inside the imageview

1 Answers1

EDITED