Xcode: Add attachment using picker to email - ios

Question

I have developed an app that allows the user to choose a video from the photo gallery and send it as an attachment in an email. I am able to choose a video from the gallery and proceed with sending the email but the video does not get attached with the email. There are no errors in the console.
ViewController.h:
#import <UIKit/UIKit.h>
#import <MobileCoreServices/MobileCoreServices.h>
#import <MessageUI/MessageUI.h>
#interface ViewController : UIViewController<UIImagePickerControllerDelegate, UINavigationControllerDelegate,MFMailComposeViewControllerDelegate>
#property (strong, nonatomic) IBOutlet UIImageView *imageView;
- (IBAction)choose:(id)sender;
#end
ViewController.m:
#import "ViewController.h"
#interface ViewController ()
#end
#implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
if (![UIImagePickerController isSourceTypeAvailable:UIImagePickerControllerSourceTypePhotoLibrary]) {
UIAlertController *myAlertController = [UIAlertController alertControllerWithTitle:#"MyTitle"
message: #"MyMessage"
preferredStyle:UIAlertControllerStyleAlert ];
[self presentViewController:myAlertController animated:YES completion:nil];
}
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (IBAction)choose:(id)sender {
UIImagePickerController *picker = [[UIImagePickerController alloc] init];
picker.delegate = self;
picker.allowsEditing = YES;
picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
picker.mediaTypes = [[NSArray alloc] initWithObjects:(NSString *)kUTTypeMovie, nil];
[self presentViewController:picker animated:YES completion:NULL];
}
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
[self performSelector:#selector(email:) withObject:chosenImage afterDelay:0.5];
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)imagePickerControllerDidCancel:(UIImagePickerController *)picker {
[picker dismissViewControllerAnimated:YES completion:NULL];
}
- (void)email:(UIImage *)choosenImage{
NSString *iOSVersion = [[UIDevice currentDevice] systemVersion];
NSString *model = [[UIDevice currentDevice] model];
NSString *version = #"1.0";
NSString *build = #"100";
MFMailComposeViewController *mailComposer = [[MFMailComposeViewController alloc] init];
mailComposer.mailComposeDelegate = self;
[mailComposer setToRecipients:[NSArray arrayWithObjects: #"support#myappworks.com",nil]];
[mailComposer setSubject:[NSString stringWithFormat: #"MailMe V%# (build %#) Support",version,build]];
NSString *supportText = [NSString stringWithFormat:#"Device: %#\niOS Version:%#\n\n",model,iOSVersion];
supportText = [supportText stringByAppendingString: #"Please describe your problem or question."];
[mailComposer setMessageBody:supportText isHTML:NO];
NSData *data = UIImagePNGRepresentation(choosenImage);
[mailComposer addAttachmentData:data mimeType:#"image/png" fileName:#""];
[self presentViewController:mailComposer animated:YES completion:nil];
}
- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error
{
[self dismissViewControllerAnimated:YES completion:nil];
}
#end
Any suggestion/help would be much appreciated. Thank you.

Answer 1

You mentioned that you're trying to attach a video, and you've configured your UIImagePickerController to limit the mediaTypes to only videos. The problem then is that you're asking for the "edited image" in the "didFinishPickingMediaWithInfo" method:
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
The user did not pick an image - they picked a video. You need to use this instead:
NSURL *chosenVideoUrl = info[UIImagePickerControllerMediaURL];
NSData *videoData = [NSData dataWithContentsOfURL:chosenVideoUrl];
You can then pass the videoData to your email method and attach to the email. Be sure to update the mimeType from "image/png" to "video/mp4", as well.

Answer 2

If u need to attach both video and image you have write to code for both,but you written only for attaching an image.You can try the code below for getting both
- (void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
if ([[info objectForKey:UIImagePickerControllerMediaType] isEqual:(NSString *)kUTTypeMovie]) {
NSString *videoURL = info[UIImagePickerControllerMediaURL];
[self emailImage:nil orVideo:videoURL];
}else {
UIImage *chosenImage = info[UIImagePickerControllerEditedImage];
[self emailImage:chosenImage orVideo:nil];
}
[picker dismissViewControllerAnimated:YES completion:NULL];
}
UIImagePickerControllerMediaURL will return file url unlike UIImagePickerControllerEditedImage ,so can use NSData method dataWithContentsOfFile as bellow.
if (choosenImage) {
NSData *data = UIImagePNGRepresentation(choosenImage);
NSString *filename = [NSString stringWithFormat:#"Image_%#.png",TimeStamp];
[mailComposer addAttachmentData:data mimeType:#"image/png" fileName:filename];
[self presentViewController:mailComposer animated:YES completion:nil];
}else {
NSData *data = [NSData dataWithContentsOfFile:videoFile];
NSString *filename = [NSString stringWithFormat:#"Video_%#.mp4",TimeStamp];
[mailComposer addAttachmentData:data mimeType:#"video/mp4" fileName:filename];
[self presentViewController:mailComposer animated:YES completion:nil];
}
it will be good if you give a filename for the attachment it will be help full after it downloading.if you wish you can use a TimeStamp for that.
#define TimeStamp [NSString stringWithFormat:#"%f",[[NSDate date] timeIntervalSince1970] * 1000]