Build a Self-Destructing Message iPhone App/Adding Recipients

#import "CameraViewController.h"
#import <MobileCoreServices/UTCoreTypes.h>


@interface CameraViewController ()

@end

@implementation CameraViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    self.friendsRelation = [[PFUser currentUser] objectForKey:@"friendsRelation"];

}

-(void)viewWillAppear:(BOOL)animated {
    [super viewWillAppear:animated];

    PFQuery *query = [self.friendsRelation query];
    [query orderByAscending:@"username"];
    [query findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
        if (error) {
            NSLog(@"Error %@ %@", error, [error userInfo]);
        }
        else {
            self.friends = objects;
            [self.tableView reloadData];
        }
    }];

    self.imagePicker = [[UIImagePickerController alloc]init];
    self.imagePicker.delegate = self;
    self.imagePicker.allowsEditing = NO;
    self.imagePicker.videoMaximumDuration = 10;



    if ([UIImagePickerController isSourceTypeAvailable: UIImagePickerControllerSourceTypeCamera]) {
        self.imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;

    }
    else {
        self.imagePicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
    }

    self.imagePicker.mediaTypes = [UIImagePickerController availableMediaTypesForSourceType:self.imagePicker.sourceType];

    [self presentViewController:self.imagePicker animated:NO completion:nil];

}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    // Return the number of sections.
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    // Return the number of rows in the section.
    return [self.friends count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];

    PFUser *user = [self.friends objectAtIndex:indexPath.row];
    cell.textLabel.text = user.username;

    return cell;
}


#pragma mark - Image Picker Controller Delegate

-(void) imagePickerControllerDidCancel:(UIImagePickerController *) picker {
    [self dismissViewControllerAnimated:NO completion:nil];
        [self.tabBarController setSelectedIndex:0];

}

-(void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
    NSString *mediaType = [info objectForKey:UIImagePickerControllerMediaType];
    if ([mediaType isEqualToString:(NSString *)kUTTypeImage]) {
        //A photo was taken or selected!
        self.image = [info objectForKey:UIImagePickerControllerOriginalImage];
        if (self.imagePicker.sourceType == UIImagePickerControllerSourceTypeCamera) {
            //Save the image!
            UIImageWriteToSavedPhotosAlbum(self.image, nil, nil, nil);
        }

    }
    else {
        //A video was selected
        NSURL *imagePickerURL = [info objectForKey:UIImagePickerControllerMediaURL];
        self.videoFilePath = [imagePickerURL path];    }
    if (self.imagePicker.sourceType == UIImagePickerControllerSourceTypeCamera) {
        //Save the video!
        if (UIVideoAtPathIsCompatibleWithSavedPhotosAlbum(self.videoFilePath))
        UISaveVideoAtPathToSavedPhotosAlbum (self.videoFilePath, nil, nil, nil);
    }
     [self dismissViewControllerAnimated:YES completion:nil];

}


@end