Objective C: How to fit the image inside the imageview - ios

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];
}

Answer 1

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