UITextView Placeholder did not dissapear after clicked - ios

Question

this is my code in xcode with swift 2. please see it first.
import UIKit
class sendComplaintViewController: UIViewController, UITextViewDelegate {
    #IBOutlet weak var subjectTextField: UITextField!
    #IBOutlet weak var typeDropDown: IQDropDownTextField!
    #IBOutlet weak var messageTextView: UITextView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        typeDropDown.isOptionalDropDown = false
        typeDropDown.itemList = ["Choose Category","Complaint", "Suggestion"]
        // Do any additional setup after loading the view.
        messageTextView.text = "Placeholder"
        messageTextView.textColor = UIColor.lightGrayColor()
        
        messageTextView.becomeFirstResponder()
        
        messageTextView.selectedTextRange = messageTextView.textRangeFromPosition(messageTextView.beginningOfDocument, toPosition: messageTextView.beginningOfDocument)
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
    //placeholder textview
    func messageTextView(messageTextView: UITextView, shouldChangeTextInRange range: NSRange, replacementText text: String) -> Bool {
        // Combine the textView text and the replacement text to
        // create the updated text string
        let currentText:NSString = messageTextView.text
        let updatedText = currentText.stringByReplacingCharactersInRange(range, withString:text)
        
        // If updated text view will be empty, add the placeholder
        // and set the cursor to the beginning of the text view
        if updatedText.isEmpty {
            messageTextView.text = "Placeholder"
            messageTextView.textColor = UIColor.lightGrayColor()
            
            messageTextView.selectedTextRange = messageTextView.textRangeFromPosition(messageTextView.beginningOfDocument, toPosition: messageTextView.beginningOfDocument)
            
            return false
        }
            
            // Else if the text view's placeholder is showing and the
            // length of the replacement string is greater than 0, clear
            // the text view and set its color to black to prepare for
            // the user's entry
        else if messageTextView.textColor == UIColor.lightGrayColor() && !text.isEmpty {
            messageTextView.text = nil
            messageTextView.textColor = UIColor.blackColor()
        }
        
        return true
    }
    func textViewDidChangeSelection(messageTextView: UITextView) {
        if self.view.window != nil {
            if messageTextView.textColor == UIColor.lightGrayColor() {
                messageTextView.selectedTextRange = messageTextView.textRangeFromPosition(messageTextView.beginningOfDocument, toPosition: messageTextView.beginningOfDocument)
            }
        }
    }
    //border textview
    
    override func viewDidLayoutSubviews() {
        // Creates the bottom border
        let borderBottom = CALayer()
        let borderWidth = CGFloat(2.0)
        borderBottom.borderColor = UIColor.grayColor().CGColor
        borderBottom.frame = CGRect(x: 0, y: messageTextView.frame.height - 1.0, width: messageTextView.frame.width , height: messageTextView.frame.height - 1.0)
        borderBottom.borderWidth = borderWidth
        messageTextView.layer.addSublayer(borderBottom)
        messageTextView.layer.masksToBounds = true
        
        // Creates the Top border
        let borderTop = CALayer()
        borderTop.borderColor = UIColor.grayColor().CGColor
        borderTop.frame = CGRect(x: 0, y: 0, width: messageTextView.frame.width, height: 1)
        borderTop.borderWidth = borderWidth
        messageTextView.layer.addSublayer(borderTop)
        messageTextView.layer.masksToBounds = true
    }
    /*
    // MARK: - Navigation
    // In a storyboard-based application, you will often want to do a little preparation before navigation
    override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */
    #IBAction func sendButtonTapped(sender: AnyObject){
        
        //let controltype = controlTypeTextField.selectedItem
        let subject = subjectTextField.text
        let type = typeDropDown.selectedItem
        let complaintMessage = messageTextView.text
        let userId = NSUserDefaults.standardUserDefaults().stringForKey("userId")
       
        if(type == nil || type! == "Choose Category"){
            displayAlertMessage("Please Choose Category")
            return
        }
        if(subject!.isEmpty || type!.isEmpty || complaintMessage!.isEmpty){
            //display an alert message
            displayAlertMessage("All fields are requiered to fill in")
            return
        }
        
        //input fungsi mbprog
        let spinningActivity = MBProgressHUD.showHUDAddedTo(self.view, animated: true)
        spinningActivity.labelText = "Loading"
        spinningActivity.detailsLabelText = "Please wait"
        
        //Send HTTP POST
        
        let myUrl = NSURL(string: "");
        let request = NSMutableURLRequest(URL:myUrl!);
        request.HTTPMethod = "POST";
        
        request.HTTPBody = postString.dataUsingEncoding(NSUTF8StringEncoding);
        NSURLSession.sharedSession().dataTaskWithRequest(request, completionHandler: { (data:NSData?, response:NSURLResponse?, error:NSError?) -> Void in
            
            dispatch_async(dispatch_get_main_queue()){
                
                spinningActivity.hide(true) //waiting send data to server (signup)
                
                if error != nil{
                    self.displayAlertMessage(error!.localizedDescription)
                    return
                }
                
                do {
                    let json = try NSJSONSerialization.JSONObjectWithData(data!, options: .MutableContainers) as? NSDictionary
                    
                    if let parseJSON = json {
                        
                        let complaintId = parseJSON["complaintId"] as? String
                        
                        if( complaintId != nil)
                        {
                            let myAlert = UIAlertController(title: "Alert", message: "Success!", preferredStyle: UIAlertControllerStyle.Alert);
                            
                            let okAction = UIAlertAction(title: "OK", style: UIAlertActionStyle.Default){(action) in
                                
                                self.dismissViewControllerAnimated(true, completion: nil)
                            }
                            
                            myAlert.addAction(okAction);
                            self.presentViewController(myAlert, animated: true, completion: nil)
                        } else {
                            let errorMessage = parseJSON["message"] as? String
                            if(errorMessage != nil)
                            {
                                self.displayAlertMessage(errorMessage!)
                            }
                        }
                    }
                } catch{
                    //print(error)
                    print(error)
                    
                    if data != nil {
                        let string = String(data: data!, encoding: NSUTF8StringEncoding)
                        print(string)
                    }
                    
                    print(response)
                }
            }
            
        }).resume()
    }
    
    #IBAction func cancelButtonTapped(sender: AnyObject) {
        self.dismissViewControllerAnimated(true, completion: nil)
    }
    
    func displayAlertMessage(userMessage:String){
        let myAlert = UIAlertController(title: "Alert", message: userMessage, preferredStyle: UIAlertControllerStyle.Alert);
        let okAction = UIAlertAction(title: "ok", style: UIAlertActionStyle.Default, handler: nil)
        myAlert.addAction(okAction);
        self.presentViewController(myAlert, animated: true, completion: nil)
    }
}
Is there any error in my code that makes placeholder didn't working right?
Placeholder is already showing but it didn't disappear after clicked.
thank you.

Answer 1

You are setting the text of your TextView, not the placeholder.
This piece of code messageTextView.text = "Placeholder" sets the text not the placeholder
If your view is a UITextView, then check this question Text View Placeholder Swift

Answer 2

You can use HCExtentionSwift for that it easy. You can check GitHub link for that pod here
Step 1 Install pod 'HCExtentionSwift'
Step 2 Go to Identity Inspector
Step 3 Insert class name TextViewDesign
Now after doing 3 steps you will see changes in Attribute Inspector
From there you can insert PlaceHolder Value