Objective C - Image from camera to set on UIButton - ios

Question

I am trying to set image from camera to set on my button but it did not accepting cropped image by default it sets to original image width and height which was captured by camera and because of this image looks shrink from top to bottom .
When I click on UIButton camera opens and then after image captured it shows on this UIButton
- (IBAction)ProfImageBtnCliked:(id)sender
{
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
[picker setAllowsEditing:YES];
picker.delegate = self;
if ([UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceRear] || [UIImagePickerController isCameraDeviceAvailable:UIImagePickerControllerCameraDeviceFront] )
{
picker.sourceType = UIImagePickerControllerSourceTypeCamera;
picker.cameraDevice = UIImagePickerControllerCameraDeviceFront;
[self presentViewController:picker animated:YES completion:nil];
}
else
{
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Alert" message:#"No Camera Available"delegate:self cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alert show];
}
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:Nil];
NSData *dataForImage = UIImageJPEGRepresentation([info objectForKey:#"UIImagePickerControllerOriginalImage"], 1.0);
[ProfImgButton setImage:[UIImage imageWithData:dataForImage] forState:UIControlStateNormal];
ProfImgButton.userInteractionEnabled=NO;
ProfImgButton.contentMode=UIViewContentModeScaleAspectFill;
ProfImgButton.clipsToBounds=YES;
CGSize constraint = CGSizeMake(200,200);
NSData *imgData = UIImageJPEGRepresentation([self imageWithImage [UIImage imageWithData:dataForImage] scaledToSize:constraint], 0);
NSLog(#"Size of Image(bytes):%lu",(unsigned long)[imgData length]);
NSString *imageString = [imgData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];
NSLog(#"%#",imageString);
//assign base64 image to image string
Base64ImageString=[imageString stringByReplacingOccurrencesOfString:#"+" withString:#"%2B"];
}
//reduce image size
-(UIImage *)imageWithImage:(UIImage *)image scaledToSize:(CGSize)newSize;
{
UIGraphicsBeginImageContext( newSize );
[image drawInRect:CGRectMake(0,0,newSize.width,newSize.height)];
UIImage* newImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return newImage;
}

Answer 1

You are setting the original image taken from your camera in your code here
[picker dismissViewControllerAnimated:YES completion:Nil];
NSData *dataForImage = UIImageJPEGRepresentation([info objectForKey:#"UIImagePickerControllerEditedImage"], 1.0);
[ProfImgButton setImage:[UIImage imageWithData:dataForImage] forState:UIControlStateNormal];
while you are resizing the image below
CGSize constraint = CGSizeMake(200,200);
NSData *imgData = UIImageJPEGRepresentation([self imageWithImage [UIImage imageWithData:dataForImage] scaledToSize:constraint], 0);
NSLog(#"Size of Image(bytes):%lu",(unsigned long)[imgData length]);
This data is not used anywhere. You are not setting it on your ProfImgButton
All you need to do is set the resized imagedata to your button
[ProfImgButton setImage:[UIImage imageWithData:imgData] forState:UIControlStateNormal];

Answer 2

Your code of cropping is wrong!
Write like this:-
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
[picker dismissViewControllerAnimated:YES completion:nil];
CGSize size = CGSizeMake(200,200);
UIImage *originalImage=UIImageJPEGRepresentation([info objectForKey:#"UIImagePickerControllerEditedImage"], 1.0);
//CROP image code
UIGraphicsBeginImageContext(size);
[originalImage drawInRect:CGRectMake(0, 0, size.width, size.height)];
UIImage *croppedImage = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
//now assign image to button
[ProfImgButton setImage:croppedImage forState:UIControlStateNormal];
ProfImgButton.userInteractionEnabled=NO;
ProfImgButton.contentMode=UIViewContentModeScaleAspectFill;
ProfImgButton.clipsToBounds=YES;
NSData *imgData = UIImageJPEGRepresentation(croppedImage , 0);
NSLog(#"Size of Image(bytes):%lu",(unsigned long)[imgData length]);
NSString *imageString = [imgData base64EncodedStringWithOptions:NSDataBase64EncodingEndLineWithLineFeed];
NSLog(#"%#",imageString);
//assine base64 image to image string
Base64ImageString=[imageString stringByReplacingOccurrencesOfString:#"+" withString:#"%2B"];
}