Swift + Add UIToolbar or Done Button on Keyboard

   

  override func viewDidLoad()

    {

        super.viewDidLoad()

     

        //--- add UIToolBar on keyboard and Done button on UIToolBar ---//

        self.addDoneButtonOnKeyboard()

        

    }

    //--- *** ---//

    

    func addDoneButtonOnKeyboard()

    {

        var doneToolbar: UIToolbar = UIToolbar(frame: CGRectMake(0, 0, 320, 50))

        doneToolbar.barStyle = UIBarStyle.BlackTranslucent

       

        var flexSpace = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)

        var done: UIBarButtonItem = UIBarButtonItem(title: "Done", style: UIBarButtonItemStyle.Done, target: self, action: Selector("doneButtonAction"))

        

        var items = NSMutableArray()

        items.addObject(flexSpace)

        items.addObject(done)

      

        doneToolbar.items = items

        doneToolbar.sizeToFit()

        

        self.textView.inputAccessoryView = doneToolbar

        self.textField.inputAccessoryView = doneToolbar

        

    }

    

    func doneButtonAction()

    {

        self.textViewDescription.resignFirstResponder()

        self.textViewDescription.resignFirstResponder()

    }

Swift + Open UIDatePicker with ActionSheet

// Compatible with iOS 7 and iOS 8 both

var datePicker: UIDatePicker!

override func viewDidLoad()

{

        super.viewDidLoad()

}

     //--- *** ---//

    func createDatePickerViewWithAlertController()

    {

        var viewDatePicker: UIView = UIView(frame: CGRectMake(0, 0, self.view.frame.size.width, 200))

        viewDatePicker.backgroundColor = UIColor.clearColor()

        

        

        self.datePicker = UIDatePicker(frame: CGRectMake(0, 0, self.view.frame.size.width, 200))

        self.datePicker.datePickerMode = UIDatePickerMode.DateAndTime

        self.datePicker.addTarget(self, action: "datePickerSelected", forControlEvents: UIControlEvents.ValueChanged)

        

        viewDatePicker.addSubview(self.datePicker)

        

        

        if(UIDevice.currentDevice().systemVersion >= "8.0")

        {

            let alertController = UIAlertController(title: nil, message: "\n\n\n\n\n\n\n\n\n\n", preferredStyle: UIAlertControllerStyle.ActionSheet)

            

            alertController.view.addSubview(viewDatePicker)

            

            

            

            

            let cancelAction = UIAlertAction(title: "Cancel", style: .Cancel)

                { (action) in

                    // ...

            }

            

            alertController.addAction(cancelAction)

            

            let OKAction = UIAlertAction(title: "Done", style: .Default)

                { (action) in

                    

                    self. dateSelected()

             }

            

            alertController.addAction(OKAction)

            

            /*

            let destroyAction = UIAlertAction(title: "Destroy", style: .Destructive)

            { (action) in

                 println(action)

            }

            alertController.addAction(destroyAction)

            */

            

            self.presentViewController(alertController, animated: true)

            {

                    // ... 

            }

        }

        else

        {

            let actionSheet = UIActionSheet(title: "\n\n\n\n\n\n\n\n\n\n", delegate: self, cancelButtonTitle: "Cancel", destructiveButtonTitle: "Done")

            actionSheet.addSubview(viewDatePicker)

            actionSheet.showInView(self.view)

        }

    }

    func dateSelected()

    {

        var selectedDate: String = String()

        

        selectedDate =  Self.dateformatterDateTime(self.datePicker.date)

        

        self.textFieldFromDate.text =  selectedDate

    }

   func dateformatterDateTime(date: NSDate) -> NSString

    {

        var dateFormatter: NSDateFormatter = NSDateFormatter()

        dateFormatter.dateFormat = "MM-dd-yyyy h:mm a"

        return dateFormatter.stringFromDate(date)

    }

// Now Implement UIActionSheet Delegate Method just for support for iOS 7 not for iOS 8

    // MARK: - UIActionSheet Delegate Implementation ::

    

    func actionSheet(actionSheet: UIActionSheet!, clickedButtonAtIndex buttonIndex: Int)

    {

        switch buttonIndex

        {

            

        case 0:

            println("Done")

            self. dateSelected()

            break;

        case 1:

            println("Cancel")

            break;

        default:

            println("Default")

            break;

        }

    }

Swift + Save and Load Image From DocumentDirectory

var selectedImage: UIImage = "image.png"

            

  

let fileManager = NSFileManager.defaultManager()

            

var paths = NSSearchPathForDirectoriesInDomains(.DocumentDirectory, .UserDomainMask, true)[0] as String

            

var filePathToWrite = "\(paths)/SaveFile.png"

            

var imageData: NSData = UIImagePNGRepresentation(selectedImage)

            

fileManager.createFileAtPath(filePathToWrite, contents: imageData, attributes: nil)

            

var getImagePath = paths.stringByAppendingPathComponent("SaveFile.png")

            

            

            

if (fileManager.fileExistsAtPath(getImagePath))

{

       println("FILE AVAILABLE");

       //Pick Image and Use accordingly

       var imageis: UIImage = UIImage(contentsOfFile: getImagePath)!

                

       let data: NSData = UIImagePNGRepresentation(imageis)

                

}

else

{

      println("FILE NOT AVAILABLE");

}

Swift + Pick Image From Photo Library Using UIImagePickerController

First Add and Import MobileCoreServices Framework.

Confirm to UIImagePickerControllerDelegate & UINavigationControllerDelegate protocol

import UIKit

import MobileCoreServices

class ViewController: UIViewController, UIImagePickerControllerDelegate, UIAlertViewDelegate, UINavigationControllerDelegate

{

    var cameraUI: UIImagePickerController! = UIImagePickerController()

    

    

    override func viewDidLoad()

    {

        super.viewDidLoad()

    }

    override func didReceiveMemoryWarning()

    {

        super.didReceiveMemoryWarning()

        

    }

    //--- Take Photo from Photo Library ---//

    @IBAction func takePhotoFromPhotoLibrary(sender: AnyObject)

    {

          self.presentLibrary()

    }

    func presentLibrary()

    {

       

        if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.PhotoLibrary)

        {

            cameraUI = UIImagePickerController()

            cameraUI.delegate = self

            cameraUI.sourceType = UIImagePickerControllerSourceType.PhotoLibrary;

            cameraUI.mediaTypes = [kUTTypeImage]

            cameraUI.allowsEditing = false

            

            self.presentViewController(cameraUI, animated: true, completion: nil)

        }

        else

        {

            // error msg

        }

    }

    

    //Mark- UIImagePickerController Delegate

    

    func imagePickerControllerDidCancel(picker:UIImagePickerController)

    {

        self.dismissViewControllerAnimated(true, completion: nil)

    }

    

    func imagePickerController(picker:UIImagePickerController!, didFinishPickingMediaWithInfo info:NSDictionary)

    {

       if(picker.sourceType == UIImagePickerControllerSourceType.PhotoLibrary)

        {

            var selectedImage: UIImage = info[UIImagePickerControllerOriginalImage] as UIImage

            

            //show Image on Image View and do other stuf that you want

            

            self.dismissViewControllerAnimated(true, completion: nil)

        }

       

    }

 


 
}  

Swift + Take pictures and save to camera roll using UIImagePickerController

First Add and Import MobileCoreServices Framework.

Confirm to UIImagePickerControllerDelegate & UINavigationControllerDelegate protocol

import UIKit

import MobileCoreServices

class ViewController: UIViewController, UIImagePickerControllerDelegate, UIAlertViewDelegate, UINavigationControllerDelegate

{

    var cameraUI: UIImagePickerController! = UIImagePickerController()

    

    

    override func viewDidLoad()

    {

        super.viewDidLoad()

    }

    override func didReceiveMemoryWarning()

    {

        super.didReceiveMemoryWarning()

        

    }

    //--- Take Photo from Camera ---//

    @IBAction func takePhotoFromCamera(sender: AnyObject)

    {

          self.presentCamera()

    }

    func presentCamera()

    {

       

        if UIImagePickerController.isSourceTypeAvailable(UIImagePickerControllerSourceType.Camera)

        {

            println("Button capture")

        

            cameraUI = UIImagePickerController()

            cameraUI.delegate = self

            cameraUI.sourceType = UIImagePickerControllerSourceType.Camera;

            cameraUI.mediaTypes = [kUTTypeImage]

            cameraUI.allowsEditing = false

            

            self.presentViewController(cameraUI, animated: true, completion: nil)

        }

        else

        {

            // error msg

        }

    }

    

    //Mark- UIImagePickerController Delegate

    

    func imagePickerControllerDidCancel(picker:UIImagePickerController)

    {

        self.dismissViewControllerAnimated(true, completion: nil)

    }

    

    func imagePickerController(picker:UIImagePickerController!, didFinishPickingMediaWithInfo info:NSDictionary)

    {

        if(picker.sourceType == UIImagePickerControllerSourceType.Camera)

        {

            // Access the uncropped image from info dictionary

            var imageToSave: UIImage = info.objectForKey(UIImagePickerControllerOriginalImage) as UIImage

            var imageToSave1: UIImage = info[UIImagePickerControllerOriginalImage] as UIImage //same but with different way

            

            UIImageWriteToSavedPhotosAlbum(imageToSave, nil, nil, nil)

            

            self.savedImageAlert()

            self.dismissViewControllerAnimated(true, completion: nil)

        }

       

    }

    

    

    

    

    func savedImageAlert()

    {

        var alert:UIAlertView = UIAlertView()

        alert.title = "Saved!"

        alert.message = "Your picture was saved to Camera Roll"

        alert.delegate = self

        alert.addButtonWithTitle("Ok")

        alert.show()

    }

}

Swift + Send E-mail In-App using MFMailComposeViewController

In this writing, I want explore how to use MFMailComposeViewController with Swift to send e-mails within your app as a walkthrough.

First Add and Import MessageUI Framework.

import UIKit

import MessageUI

Second, we need to specify that the View Controller will conform to

the MFMailComposeViewControllerDelegate protocol.  Later, we’ll actually implement the method that this protocol outlines, which will allow us to make the email composer screen go away once the user is finished either sending an e-mail or cancels out of sending one.

@IBAction func sendEmailButtonTapped(sender: AnyObject)

{

        let mailComposeViewController = configuredMailComposeViewController()

       

        if MFMailComposeViewController.canSendMail()

        {

            self.presentViewController(mailComposeViewController, animated: true, completion: nil)

        }

        else

        {

            self.showSendMailErrorAlert()

        }

}

   func configuredMailComposeViewController() -> MFMailComposeViewController

    {

        let mailComposerVC = MFMailComposeViewController()

    

        mailComposerVC.mailComposeDelegate = self

        

        

        mailComposerVC.setToRecipients(["test@domain.com"])

        

        

        mailComposerVC.setSubject("Sending you an in-app e-mail...")

        

        

        mailComposerVC.setMessageBody("Sending e-mail in-app is not so bad!", isHTML: false)

        

        return mailComposerVC

        

    }

    

    

    

    

    

    func showSendMailErrorAlert()

    {

        

        

        let sendMailErrorAlert = UIAlertView(title: "Could Not Send Email", message: "Your device could not send e-mail.  Please check e-mail configuration and try again.", delegate: self, cancelButtonTitle: "OK")

        

        

        sendMailErrorAlert.show()

        

        

    }

    

    

    

    

    

    // MARK: MFMailComposeViewControllerDelegate Method

    

    

    func mailComposeController(controller: MFMailComposeViewController!, didFinishWithResult result: MFMailComposeResult, error: NSError!)

    {

        

        

        controller.dismissViewControllerAnimated(true, completion: nil)

        

        

    }

Swift + CLGeocoder to show address string on Map

First of all add & Import MapKit framework in your class.

import UIKit

import MapKit

class ViewController: UIViewController, CLLocationManagerDelegate

{

    @IBOutlet weak var map: MKMapView!

    

  

    override func viewDidLoad()

    {

        super.viewDidLoad()

        

       self.map.mapType = MKMapType.Standard

       self.map.showsUserLocation = true

        

       self.map.removeAnnotations(self.map.annotations)

     

         let address = "address string"

        

        var geocoder:CLGeocoder = CLGeocoder()

        

        geocoder.geocodeAddressString(address, completionHandler: {(placemarks: [AnyObject]!, error: NSError!) -> Void in

            

            if(error != nil)

            {

                

                println("Error", error)

            }

                

            else if let placemark = placemarks?[0] as? CLPlacemark

            {

                

                var placemark:CLPlacemark = placemarks[0] as CLPlacemark

                var coordinates:CLLocationCoordinate2D = placemark.location.coordinate

                

                var pointAnnotation:MKPointAnnotation = MKPointAnnotation()

                pointAnnotation.coordinate = coordinates

                pointAnnotation.title = "Apple HQ"

                

                self.map.addAnnotation(pointAnnotation)

                self.map.centerCoordinate = coordinates

                self.map.selectAnnotation(pointAnnotation, animated: true)

                

                println("Added annotation to map view")

            }

            

        })

    }

    override func didReceiveMemoryWarning()

    {

        super.didReceiveMemoryWarning()

       

    }

}