View Controller

gistfile1.txt

#import "ViewController.h"

@interface ViewController () <CLLocationManagerDelegate>

@end

@implementation ViewController{
    NSString *currentLongitude;
    NSString *currentLatitude;
    NSString *googleMapsURL;
    CLLocationManager *locationManager_;
}

- (void)viewDidLoad {
    [super viewDidLoad];
    
    locationManager_ = [[CLLocationManager alloc] init];
    locationManager_.delegate = self;
    locationManager_.distanceFilter = kCLDistanceFilterNone;
    locationManager_.desiredAccuracy = kCLLocationAccuracyBest;
    [locationManager_ requestAlwaysAuthorization];
    [locationManager_ startUpdatingLocation];
}

- (void)viewDidAppear:(BOOL)animated{

}

-(void)locationManager:(CLLocationManager *)manager didUpdateLocations:(NSArray *)locations {
    CLLocation *newLocation = [locations lastObject];
    googleMapsURL = [[NSString alloc] initWithFormat:@"https://maps.google.com?saddr=Current+Location&daddr=%1.6f,%1.6f",newLocation.coordinate.latitude, newLocation.coordinate.longitude];
}

- (void) imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info
{
    UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
    [picker dismissViewControllerAnimated:YES completion:nil];
    
    // Pass the image to email composer after dismissing the camera. Delay allowed for cameraVC to dismiss.
    [self performSelector:@selector(composeMail:) withObject:image afterDelay:1.0];
}

- (void) imagePickerControllerDidCancel:(UIImagePickerController *)picker
{
    [picker dismissViewControllerAnimated:YES completion:nil];
}


- (void)composeMail:(UIImage *)image{
    NSString *bodyHeader = @"Here are your directions:";
    NSString *mailBody = [NSString stringWithFormat:@"%@\n%@", bodyHeader, googleMapsURL];
    NSData *data = UIImagePNGRepresentation(image);
    
    MFMailComposeViewController *emailComposer = [[MFMailComposeViewController alloc] init];
    
    [emailComposer setSubject:@"Google Maps Directions"];
    [emailComposer setMessageBody:mailBody isHTML:NO];
    [emailComposer setToRecipients:@[@"[email protected]"]];
    [emailComposer setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
    [emailComposer addAttachmentData:data mimeType:@"image/png" fileName:@"CameraImage"];
    
    [self presentViewController:emailComposer animated:YES completion:nil];
}

- (void)mailComposeController:(MFMailComposeViewController *)controller didFinishWithResult:(MFMailComposeResult)result error:(NSError *)error {
    
    UIAlertView *messageFailed = [[UIAlertView alloc]initWithTitle:@"Message Failed" message:@"Your message could not be sent" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    
    UIAlertView *messageSent = [[UIAlertView alloc] initWithTitle:@"Message Sent" message:@"Your message has been sent" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    
    UIAlertView *messageComposeResultSaved = [[UIAlertView alloc] initWithTitle:@"Message Saved" message:@"Your message has been saved" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
    
    UIAlertView *messageComposeResultCancelled = [[UIAlertView alloc] initWithTitle:@"Message Cancelled" message:@"Your message has been cancelled" delegate:self cancelButtonTitle:@"OK" otherButtonTitles: nil];
    
    switch (result) {
        case MFMailComposeResultSent:
            [self presentViewController: messageSent animated:YES completion:nil];
            [self dismissViewControllerAnimated:YES completion:nil];
            break;
        case MFMailComposeResultSaved:
            [self presentViewController:messageComposeResultSaved animated:YES completion:nil];
            [self dismissViewControllerAnimated:YES completion:nil];
            break;
        case MFMailComposeResultCancelled:
            [self presentViewController:messageComposeResultCancelled animated:YES completion:nil];
            [self dismissViewControllerAnimated:YES completion:nil];
            break;
        case MFMailComposeResultFailed:
            [self presentViewController:messageFailed animated:YES completion:nil];
            [self dismissViewControllerAnimated:YES completion:nil];
            break;
        default:
            NSLog(@"An error occurred when trying to compose this email");
            break;
    }
    
    // Dismiss the composer
    [self dismissViewControllerAnimated:YES completion:nil];
}


- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
}

- (IBAction)captureImageButton:(id)sender {
    if (self.imageView.image == nil) {
        UIImagePickerController *imagePickerController = [[UIImagePickerController alloc] init];
        imagePickerController.sourceType = UIImagePickerControllerSourceTypeCamera;
        imagePickerController.modalPresentationStyle = UIModalPresentationCurrentContext;
        imagePickerController.delegate = self;
        [self presentViewController:imagePickerController animated:YES completion:nil];
    }
    else {
        
    }
}
@end