Capture and Upload Image on server iOS objective c

ImageSelectCapture.h

#import <UIKit/UIKit.h>

@interface ImageSelectCapture : UIViewController

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

- (IBAction)btSelectImage:(UIButton *)sender; // button to select image

- (IBAction)btUpload:(UIButton *)sender;  // button to upload image on server

@end

ImageSelectCapture.m

#import "ImageSelectCapture.h"

@interface ImageSelectCapture ()<UIImagePickerControllerDelegate,UINavigationControllerDelegate>{

    

    

    NSData *pngData; //store image data when selected

    NSString *image_name;

}

@end

@implementation ImageSelectCapture

- (void)viewDidLoad {

    [super viewDidLoad];

    

pngData = nil;

   image_name=@"filename.jpg";

    

}

- (void)didReceiveMemoryWarning {

    [super didReceiveMemoryWarning];

    // Dispose of any resources that can be recreated.

}

/**

Called on user select image

*/

- (IBAction)btSelectImage:(UIButton *)sender {

    

    UIImagePickerController *pickerControl=[[UIImagePickerController alloc]init];

    

    pickerControl.delegate=self;

    pickerControl.allowsEditing=YES;

    

    pickerControl.sourceType=UIImagePickerControllerSourceTypePhotoLibrary;

    

/**

If want to capture from camera

**/

//pickerControl.sourceType=UIImagePickerControllerSourceTypeCamera;

    [self presentViewController:pickerControl animated:YES completion:NULL];

    

}

/**

 Upload Button Click

 **/

- (IBAction)btUpload:(UIButton *)sender {

    

    NSString *img_upload_url=@“filename.php";

    

    

    if(pngData!=nil){

        

        NSMutableURLRequest *request;

        request = [[NSMutableURLRequest alloc] initWithURL:[NSURL URLWithString:img_upload_url]];

        

        [request setCachePolicy:NSURLRequestReloadIgnoringLocalCacheData];

        [request setHTTPShouldHandleCookies:NO];

        [request setTimeoutInterval:60];

        [request setHTTPMethod:@"POST"];

        

        NSString *boundary = @"unique-consistent-string";

        

        // set Content-Type in HTTP header

        NSString *contentType = [NSString stringWithFormat:@"multipart/form-data; boundary=%@", boundary];

        [request setValue:contentType forHTTPHeaderField: @"Content-Type"];

        

        // post body

        NSMutableData *body = [NSMutableData data];

        

        // add params (all params are strings)

        [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

        [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=%@\r\n\r\n", @"imageCaption"] dataUsingEncoding:NSUTF8StringEncoding]];

        [body appendData:[[NSString stringWithFormat:@"%@\r\n", @"Some Caption"] dataUsingEncoding:NSUTF8StringEncoding]];

        

        

        

        

        [body appendData:[[NSString stringWithFormat:@"--%@\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

        [body appendData:[[NSString stringWithFormat:@"Content-Disposition: form-data; name=%@; filename=%@\r\n", @"image",image_name] dataUsingEncoding:NSUTF8StringEncoding]];

        [body appendData:[@"Content-Type: image/jpeg\r\n\r\n" dataUsingEncoding:NSUTF8StringEncoding]];

        [body appendData:pngData];

        [body appendData:[[NSString stringWithFormat:@"\r\n"] dataUsingEncoding:NSUTF8StringEncoding]];

        [body appendData:[[NSString stringWithFormat:@"--%@--\r\n", boundary] dataUsingEncoding:NSUTF8StringEncoding]];

        

        // setting the body of the post to the reqeust

        [request setHTTPBody:body];

        

        // set the content-length

        NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[body length]];

        [request setValue:postLength forHTTPHeaderField:@"Content-Length"];

        

        

        [NSURLConnection sendAsynchronousRequest:request queue:[NSOperationQueue currentQueue] completionHandler:^(NSURLResponse *response, NSData *data, NSError *error) {

            if(data.length > 0)

            {

                NSLog(@"Successfully Uploaded");

            }

        }];

        

    }

}

/**

 select Image and load with data

*/

-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary<NSString *,id> *)info{

    

    UIImage *chosen_image=info[UIImagePickerControllerEditedImage];

    

    _img_show_.image=chosen_image;

    

    /**

     Store image on data

    **/

    

    pngData = UIImageJPEGRepresentation(chosen_image,0.1);

    

    [picker dismissViewControllerAnimated:YES completion:NULL];

}

/**

 If user cancel the operation

 */

-(void)imagePickerControllerDidCancel:(UIImagePickerController *)picker

{

    [picker dismissViewControllerAnimated:YES completion:NULL];

}

@end