/*

     File: MessageComposerViewController.m

 Abstract: UIViewController that includes a UIButton and a UILabel.

 The button responds to an IBAction that will bring up the MFMessageComposeViewController for composing a new SMS text message. The label will show a feedback message of whether the SMS text message has been sent.

  Version: 1.2

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 */

#import <MessageUI/MessageUI.h>

#import "MessageComposerViewController.h"

@interface MessageComposerViewController () <

    MFMailComposeViewControllerDelegate,

    MFMessageComposeViewControllerDelegate,

    UINavigationControllerDelegate

>

// UILabel for displaying the result of the sending the message.

@property (nonatomic, weak) IBOutlet UILabel *feedbackMsg;

@end

@implementation MessageComposerViewController

#pragma mark - Rotation

#if __IPHONE_OS_VERSION_MIN_REQUIRED < __IPHONE_6_0

// -------------------------------------------------------------------------------

//  shouldAutorotateToInterfaceOrientation:

//  Disable rotation on iOS 5.x and earlier.  Note, for iOS 6.0 and later all you

//  need is "UISupportedInterfaceOrientations" defined in your Info.plist

// -------------------------------------------------------------------------------

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation

{

    return (interfaceOrientation == UIInterfaceOrientationPortrait);

}

#endif

#pragma mark - Actions

// -------------------------------------------------------------------------------

//  showMailPicker:

//  IBAction for the Compose Mail button.

// -------------------------------------------------------------------------------

- (IBAction)showMailPicker:(id)sender

{

    // You must check that the current device can send email messages before you

    // attempt to create an instance of MFMailComposeViewController.  If the

    // device can not send email messages,

    // [[MFMailComposeViewController alloc] init] will return nil.  Your app

    // will crash when it calls -presentViewController:animated:completion: with

    // a nil view controller.

    if ([MFMailComposeViewController canSendMail])

    // The device can send email.

    {

        [self displayMailComposerSheet];

    }

    else

    // The device can not send email.

    {

        self.feedbackMsg.hidden = NO;

        self.feedbackMsg.text = @"Device not configured to send mail.";

    }

}

// -------------------------------------------------------------------------------

//  showSMSPicker:

//  IBAction for the Compose SMS button.

// -------------------------------------------------------------------------------

- (IBAction)showSMSPicker:(id)sender

{

    // You must check that the current device can send SMS messages before you

    // attempt to create an instance of MFMessageComposeViewController.  If the

    // device can not send SMS messages,

    // [[MFMessageComposeViewController alloc] init] will return nil.  Your app

    // will crash when it calls -presentViewController:animated:completion: with

    // a nil view controller.

    if ([MFMessageComposeViewController canSendText])

    // The device can send email.

    {

        [self displaySMSComposerSheet];

    }

    else

    // The device can not send email.

    {

        self.feedbackMsg.hidden = NO;

        self.feedbackMsg.text = @"Device not configured to send SMS.";

    }

}

#pragma mark - Compose Mail/SMS

// -------------------------------------------------------------------------------

//  displayMailComposerSheet

//  Displays an email composition interface inside the application.

//  Populates all the Mail fields.

// -------------------------------------------------------------------------------

- (void)displayMailComposerSheet 

{

    MFMailComposeViewController *picker = [[MFMailComposeViewController alloc] init];

    picker.mailComposeDelegate = self;

    [picker setSubject:@"Hello from California!"];

    // Set up recipients

    NSArray *toRecipients = [NSArray arrayWithObject:@"first@example.com"]; 

    NSArray *ccRecipients = [NSArray arrayWithObjects:@"second@example.com", @"third@example.com", nil]; 

    NSArray *bccRecipients = [NSArray arrayWithObject:@"fourth@example.com"]; 

    [picker setToRecipients:toRecipients];

    [picker setCcRecipients:ccRecipients];  

    [picker setBccRecipients:bccRecipients];

    // Attach an image to the email

    NSString *path = [[NSBundle mainBundle] pathForResource:@"rainy" ofType:@"jpg"];

    NSData *myData = [NSData dataWithContentsOfFile:path];

    [picker addAttachmentData:myData mimeType:@"image/jpeg" fileName:@"rainy"];

    // Fill out the email body text

    NSString *emailBody = @"It is raining in sunny California!";

    [picker setMessageBody:emailBody isHTML:NO];

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

}

// -------------------------------------------------------------------------------

//  displayMailComposerSheet

//  Displays an SMS composition interface inside the application.

// -------------------------------------------------------------------------------

- (void)displaySMSComposerSheet 

{

    MFMessageComposeViewController *picker = [[MFMessageComposeViewController alloc] init];

    picker.messageComposeDelegate = self;

    // You can specify one or more preconfigured recipients.  The user has

    // the option to remove or add recipients from the message composer view

    // controller.

    /* picker.recipients = @[@"Phone number here"]; */

    // You can specify the initial message text that will appear in the message

    // composer view controller.

    picker.body = @"Hello from California!";

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

}

#pragma mark - Delegate Methods

// -------------------------------------------------------------------------------

//  mailComposeController:didFinishWithResult:

//  Dismisses the email composition interface when users tap Cancel or Send.

//  Proceeds to update the message field with the result of the operation.

// -------------------------------------------------------------------------------

- (void)mailComposeController:(MFMailComposeViewController*)controller 

        didFinishWithResult:(MFMailComposeResult)result error:(NSError*)error

{

    self.feedbackMsg.hidden = NO;

    // Notifies users about errors associated with the interface

    switch (result)

    {

        case MFMailComposeResultCancelled:

            self.feedbackMsg.text = @"Result: Mail sending canceled";

            break;

        case MFMailComposeResultSaved:

            self.feedbackMsg.text = @"Result: Mail saved";

            break;

        case MFMailComposeResultSent:

            self.feedbackMsg.text = @"Result: Mail sent";

            break;

        case MFMailComposeResultFailed:

            self.feedbackMsg.text = @"Result: Mail sending failed";

            break;

        default:

            self.feedbackMsg.text = @"Result: Mail not sent";

            break;

    }

    [self dismissViewControllerAnimated:YES completion:NULL];

}

// -------------------------------------------------------------------------------

//  messageComposeViewController:didFinishWithResult:

//  Dismisses the message composition interface when users tap Cancel or Send.

//  Proceeds to update the feedback message field with the result of the

//  operation.

// -------------------------------------------------------------------------------

- (void)messageComposeViewController:(MFMessageComposeViewController *)controller 

              didFinishWithResult:(MessageComposeResult)result

{

    self.feedbackMsg.hidden = NO;

    // Notifies users about errors associated with the interface

    switch (result)

    {

        case MessageComposeResultCancelled:

            self.feedbackMsg.text = @"Result: SMS sending canceled";

            break;

        case MessageComposeResultSent:

            self.feedbackMsg.text = @"Result: SMS sent";

            break;

        case MessageComposeResultFailed:

            self.feedbackMsg.text = @"Result: SMS sending failed";

            break;

        default:

            self.feedbackMsg.text = @"Result: SMS not sent";

            break;

    }

    [self dismissViewControllerAnimated:YES completion:NULL];

}

@end