ios UITextView 中的占位符

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时间:2020-08-30 16:19:53  来源:igfitidea点击:

Placeholder in UITextView

iosobjective-ccocoa-touchuitextviewplaceholder

提问by

My application uses an UITextView. Now I want the UITextViewto have a placeholder similar to the one you can set for an UITextField.

我的应用程序使用UITextView. 现在我希望UITextView有一个类似于您可以为UITextField.

How to do this?

这该怎么做?

采纳答案by Jason George

I made a few minor modifications to bcd's solution to allow for initialization from a Xibfile, text wrapping, and to maintain background color. Hopefully it will save others the trouble.

我对 bcd 的解决方案做了一些小的修改,以允许从Xib文件初始化、文本换行和保持背景颜色。希望它可以为其他人省去麻烦。

UIPlaceHolderTextView.h:

UIPlaceHolderTextView.h:

#import <Foundation/Foundation.h>
IB_DESIGNABLE
@interface UIPlaceHolderTextView : UITextView

@property (nonatomic, retain) IBInspectable NSString *placeholder;
@property (nonatomic, retain) IBInspectable UIColor *placeholderColor;

-(void)textChanged:(NSNotification*)notification;

@end

UIPlaceHolderTextView.m:

UIPlaceHolderTextView.m:

#import "UIPlaceHolderTextView.h"

@interface UIPlaceHolderTextView ()

@property (nonatomic, retain) UILabel *placeHolderLabel;

@end

@implementation UIPlaceHolderTextView

CGFloat const UI_PLACEHOLDER_TEXT_CHANGED_ANIMATION_DURATION = 0.25;

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
#if __has_feature(objc_arc)
#else
    [_placeHolderLabel release]; _placeHolderLabel = nil;
    [_placeholderColor release]; _placeholderColor = nil;
    [_placeholder release]; _placeholder = nil;
    [super dealloc];
#endif
}

- (void)awakeFromNib
{
    [super awakeFromNib];

? ? // Use Interface Builder User Defined Runtime Attributes to set
? ? // placeholder and placeholderColor in Interface Builder.
    if (!self.placeholder) {
        [self setPlaceholder:@""];
    }

    if (!self.placeholderColor) {
        [self setPlaceholderColor:[UIColor lightGrayColor]];
    }

    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textChanged:) name:UITextViewTextDidChangeNotification object:nil];
}

- (id)initWithFrame:(CGRect)frame
{
    if( (self = [super initWithFrame:frame]) )
    {
        [self setPlaceholder:@""];
        [self setPlaceholderColor:[UIColor lightGrayColor]];
        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textChanged:) name:UITextViewTextDidChangeNotification object:nil];
    }
    return self;
}

- (void)textChanged:(NSNotification *)notification
{
    if([[self placeholder] length] == 0)
    {
        return;
    }

    [UIView animateWithDuration:UI_PLACEHOLDER_TEXT_CHANGED_ANIMATION_DURATION animations:^{
    if([[self text] length] == 0)
    {
        [[self viewWithTag:999] setAlpha:1];
    }
    else
    {
        [[self viewWithTag:999] setAlpha:0];
    }
    }];
}

- (void)setText:(NSString *)text {
    [super setText:text];
    [self textChanged:nil];
}

- (void)drawRect:(CGRect)rect
{
    if( [[self placeholder] length] > 0 )
    {
        if (_placeHolderLabel == nil )
        {
            _placeHolderLabel = [[UILabel alloc] initWithFrame:CGRectMake(8,8,self.bounds.size.width - 16,0)];
            _placeHolderLabel.lineBreakMode = NSLineBreakByWordWrapping;
            _placeHolderLabel.numberOfLines = 0;
            _placeHolderLabel.font = self.font;
            _placeHolderLabel.backgroundColor = [UIColor clearColor];
            _placeHolderLabel.textColor = self.placeholderColor;
            _placeHolderLabel.alpha = 0;
            _placeHolderLabel.tag = 999;
            [self addSubview:_placeHolderLabel];
        }

        _placeHolderLabel.text = self.placeholder;
        [_placeHolderLabel sizeToFit];
        [self sendSubviewToBack:_placeHolderLabel];
    }

    if( [[self text] length] == 0 && [[self placeholder] length] > 0 )
    {
        [[self viewWithTag:999] setAlpha:1];
    }

    [super drawRect:rect];
}

@end

回答by CmKndy

Easy way, just create placeholder text in UITextViewby using the following UITextViewDelegatemethods:

简单的方法,只需UITextView使用以下UITextViewDelegate方法创建占位符文本:

- (void)textViewDidBeginEditing:(UITextView *)textView
{
    if ([textView.text isEqualToString:@"placeholder text here..."]) {
         textView.text = @"";
         textView.textColor = [UIColor blackColor]; //optional
    }
    [textView becomeFirstResponder];
}

- (void)textViewDidEndEditing:(UITextView *)textView
{
    if ([textView.text isEqualToString:@""]) {
        textView.text = @"placeholder text here...";
        textView.textColor = [UIColor lightGrayColor]; //optional
    }
    [textView resignFirstResponder];
}

just remember to set myUITextViewwith the exact text on creation e.g.

只记得myUITextView在创建时设置确切的文本,例如

UITextView *myUITextView = [[UITextView alloc] init];
myUITextView.delegate = self;
myUITextView.text = @"placeholder text here...";
myUITextView.textColor = [UIColor lightGrayColor]; //optional

and make the parent class a UITextViewDelegatebefore including these methods e.g.

UITextViewDelegate在包含这些方法之前使父类 a

@interface MyClass () <UITextViewDelegate>
@end

Code for Swift 3.1

Swift 3.1 代码

func textViewDidBeginEditing(_ textView: UITextView) 
{
    if (textView.text == "placeholder text here..." && textView.textColor == .lightGray)
    {
        textView.text = ""
        textView.textColor = .black
    }
    textView.becomeFirstResponder() //Optional
}

func textViewDidEndEditing(_ textView: UITextView)
{
    if (textView.text == "")
    {
        textView.text = "placeholder text here..."
        textView.textColor = .lightGray
    }
    textView.resignFirstResponder()
}

just remember to set myUITextViewwith the exact text on creation e.g.

只记得myUITextView在创建时设置确切的文本,例如

 let myUITextView = UITextView.init()
 myUITextView.delegate = self
 myUITextView.text = "placeholder text here..."
 myUITextView.textColor = .lightGray

and make the parent class a UITextViewDelegatebefore including these methods e.g.

UITextViewDelegate在包含这些方法之前使父类 a

class MyClass: UITextViewDelegate
{

}

回答by Sam Soffes

I wasn't too happy with any of the solutions posted as they were a bit heavy. Adding views to the view isn't really ideal (especially in drawRect:). They both had leaks, which isn't acceptable either.

我对发布的任何解决方案都不太满意,因为它们有点重。向视图添加视图并不是很理想(尤其是在 中drawRect:)。他们都有泄漏,这也是不可接受的。

Here is my solution: SAMTextView

这是我的解决方案:SAMTextView

SAMTextView.h

SAMTextView.h

//
//  SAMTextView.h
//  SAMTextView
//
//  Created by Sam Soffes on 8/18/10.
//  Copyright 2010-2013 Sam Soffes. All rights reserved.
//

#import <UIKit/UIKit.h>

/**
 UITextView subclass that adds placeholder support like UITextField has.
 */
@interface SAMTextView : UITextView

/**
 The string that is displayed when there is no other text in the text view.

 The default value is `nil`.
 */
@property (nonatomic, strong) NSString *placeholder;

/**
 The color of the placeholder.

 The default is `[UIColor lightGrayColor]`.
 */
@property (nonatomic, strong) UIColor *placeholderTextColor;

/**
 Returns the drawing rectangle for the text views's placeholder text.

 @param bounds The bounding rectangle of the receiver.
 @return The computed drawing rectangle for the placeholder text.
 */
- (CGRect)placeholderRectForBounds:(CGRect)bounds;

@end

SAMTextView.m

SAMTextView.m

//
//  SAMTextView.m
//  SAMTextView
//
//  Created by Sam Soffes on 8/18/10.
//  Copyright 2010-2013 Sam Soffes. All rights reserved.
//

#import "SAMTextView.h"

@implementation SAMTextView

#pragma mark - Accessors

@synthesize placeholder = _placeholder;
@synthesize placeholderTextColor = _placeholderTextColor;

- (void)setText:(NSString *)string {
  [super setText:string];
  [self setNeedsDisplay];
}


- (void)insertText:(NSString *)string {
  [super insertText:string];
  [self setNeedsDisplay];
}


- (void)setAttributedText:(NSAttributedString *)attributedText {
  [super setAttributedText:attributedText];
  [self setNeedsDisplay];
}


- (void)setPlaceholder:(NSString *)string {
  if ([string isEqual:_placeholder]) {
    return;
  }

  _placeholder = string;
  [self setNeedsDisplay];
}


- (void)setContentInset:(UIEdgeInsets)contentInset {
  [super setContentInset:contentInset];
  [self setNeedsDisplay];
}


- (void)setFont:(UIFont *)font {
  [super setFont:font];
  [self setNeedsDisplay];
}


- (void)setTextAlignment:(NSTextAlignment)textAlignment {
  [super setTextAlignment:textAlignment];
  [self setNeedsDisplay];
}


#pragma mark - NSObject

- (void)dealloc {
  [[NSNotificationCenter defaultCenter] removeObserver:self name:UITextViewTextDidChangeNotification object:self];
}


#pragma mark - UIView

- (id)initWithCoder:(NSCoder *)aDecoder {
  if ((self = [super initWithCoder:aDecoder])) {
    [self initialize];
  }
  return self;
}


- (id)initWithFrame:(CGRect)frame {
  if ((self = [super initWithFrame:frame])) {
    [self initialize];
  }
  return self;
}


- (void)drawRect:(CGRect)rect {
  [super drawRect:rect];

  if (self.text.length == 0 && self.placeholder) {
    rect = [self placeholderRectForBounds:self.bounds];

    UIFont *font = self.font ? self.font : self.typingAttributes[NSFontAttributeName];

    // Draw the text
    [self.placeholderTextColor set];
    [self.placeholder drawInRect:rect withFont:font lineBreakMode:NSLineBreakByTruncatingTail alignment:self.textAlignment];
  }
}


#pragma mark - Placeholder

- (CGRect)placeholderRectForBounds:(CGRect)bounds {
  // Inset the rect
  CGRect rect = UIEdgeInsetsInsetRect(bounds, self.contentInset);

  if (self.typingAttributes) {
    NSParagraphStyle *style = self.typingAttributes[NSParagraphStyleAttributeName];
    if (style) {
      rect.origin.x += style.headIndent;
      rect.origin.y += style.firstLineHeadIndent;
    }
  }

  return rect;
}


#pragma mark - Private

- (void)initialize {
  [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(textChanged:) name:UITextViewTextDidChangeNotification object:self];

  self.placeholderTextColor = [UIColor colorWithWhite:0.702f alpha:1.0f];
}


- (void)textChanged:(NSNotification *)notification {
  [self setNeedsDisplay];
}

@end

It's a lot simpler than the others, as it doesn't use subviews (or have leaks). Feel free to use it.

它比其他的简单得多,因为它不使用子视图(或有泄漏)。随意使用它。

Update 11/10/11:It is now documented and supports use in Interface Builder.

2011 年 11 月 10 日更新:现已记录并支持在 Interface Builder 中使用。

Update 11/24/13:Point to new repo.

2013 年 11 月 24 日更新:指向新的存储库。

回答by vdevos

I found myself a very easy way to imitate a place-holder

我发现自己很容易模仿占位符

  1. in the NIB or code set your textView's textColor to lightGrayColor (most of the time)
  2. make sure that your textView's delegate is linked to file's owner and implement UITextViewDelegate in your header file
  3. set the default text of your text view to (example: "Foobar placeholder")
  4. implement: (BOOL) textViewShouldBeginEditing:(UITextView *)textView
  1. 在 NIB 或代码中将 textView 的 textColor 设置为 lightGrayColor(大部分时间)
  2. 确保你的 textView 的委托链接到文件的所有者并在你的头文件中实现 UITextViewDelegate
  3. 将文本视图的默认文本设置为(例如:“Foobar placeholder”)
  4. 实现:(BOOL)textViewShouldBeginEditing:(UITextView *)textView

Edit:

编辑:

Changed if statements to compare tags rather than text. If the user deleted their text it was possible to also accidentally delete a portion of the place holder @"Foobar placeholder".This meant if the user re-entered the textView the following delegate method, -(BOOL) textViewShouldBeginEditing:(UITextView *) textView, it would not work as expected. I tried comparing by the color of the text in the if statement but found that light grey color set in interface builder is not the same as light grey color set in code with [UIColor lightGreyColor]

更改 if 语句以比较标签而不是文本。如果用户删除了他们的文本,也可能会意外删除占位符的一部分@"Foobar placeholder"。这意味着如果用户重新输入 textView 的以下委托方法,-(BOOL) textViewShouldBeginEditing:(UITextView *) textView它将无法按预期工作。我尝试通过 if 语句中文本的颜色进行比较,但发现界面构建器中设置的浅灰色与代码中设置的浅灰色不同[UIColor lightGreyColor]

- (BOOL) textViewShouldBeginEditing:(UITextView *)textView
{
    if(textView.tag == 0) {
        textView.text = @"";
        textView.textColor = [UIColor blackColor];
        textView.tag = 1;
    }
    return YES;
}

It is also possible to reset the placeholder text when the keyboard returns and the [textView length] == 0

也可以在键盘返回且 [textView length] == 0 时重置占位符文本

EDIT:

编辑:

Just to make the last part clearer - here's is how you can set the placeholder text back:

只是为了使最后一部分更清晰 - 以下是如何设置占位符文本:

- (void)textViewDidChange:(UITextView *)textView
{
   if([textView.text length] == 0)
   {
       textView.text = @"Foobar placeholder";
       textView.textColor = [UIColor lightGrayColor];
       textView.tag = 0;
   }
}

回答by Tim

What you can do is set up the text view with some initial value in the textproperty, and change the textColorto [UIColor grayColor]or something similar. Then, whenever the text view becomes editable, clear the text and present a cursor, and if the text field is ever empty again, put your placeholder text back. Change the color to [UIColor blackColor]as appropriate.

您可以做的是在text属性中使用一些初始值设置文本视图,然后更改textColor[UIColor grayColor]或类似的内容。然后,每当文本视图变为可编辑时,清除文本并显示光标,如果文本字段再次为空,请将占位符文本放回原处。根据需要更改颜色[UIColor blackColor]

It's not exactly the same as the placeholder functionality in a UITextField, but it's close.

它与 UITextField 中的占位符功能并不完全相同,但很接近。

回答by MohammedYakub Moriswala

You can set the label on the UITextViewby

您可以在UITextViewby上设置标签

[UITextView addSubView:lblPlaceHoldaer];

and hide it on TextViewdidChangemethod.

并将其隐藏在TextViewdidChange方法上。

This is the simple & easy way.

这是简单易行的方法。

回答by derdida

If someone needs a Solution for Swift:

如果有人需要 Swift 的解决方案:

Add UITextViewDelegate to your class

将 UITextViewDelegate 添加到您的班级

var placeHolderText = "Placeholder Text..."

override func viewDidLoad() {
    super.viewDidLoad()
    textView.delegate = self
}

func textViewShouldBeginEditing(textView: UITextView) -> Bool {

    self.textView.textColor = .black

    if(self.textView.text == placeHolderText) {
        self.textView.text = ""
    }

    return true
}

func textViewDidEndEditing(textView: UITextView) {
    if(textView.text == "") {
        self.textView.text = placeHolderText
        self.textView.textColor = .lightGray
    }
}

override func viewWillAppear(animated: Bool) {

    if(currentQuestion.answerDisplayValue == "") {
        self.textView.text = placeHolderText
        self.textView.textColor = .lightGray
    } else {
        self.textView.text = "xxx" // load default text / or stored 
        self.textView.textColor = .black
    }
}

回答by budidino

Simple Swift 3solution

简单的Swift 3解决方案

Add UITextViewDelegateto your class

添加UITextViewDelegate到您的班级

Set yourTextView.delegate = self

yourTextView.delegate = self

Create placeholderLabeland position it inside yourTextView

创建placeholderLabel并将其放置在内部yourTextView

Now just animate placeholderLabel.alphaon textViewDidChange:

现在只是动画placeholderLabel.alphatextViewDidChange

  func textViewDidChange(_ textView: UITextView) {
    let newAlpha: CGFloat = textView.text.isEmpty ? 1 : 0
    if placeholderLabel.alpha != newAlpha {
      UIView.animate(withDuration: 0.3) {
        self.placeholderLabel.alpha = newAlpha
      }
    }
  }

you might have to play with placeholderLabelposition to set it up right, but that shouldn't be too hard

您可能需要调整placeholderLabel位置才能正确设置,但这应该不会太难

回答by Matt

I extended KmKndy's answer, so that the placeholder remains visible until the user starts editing the UITextViewrather than just taps on it. This mirrors the functionality in the Twitter and Facebook apps. My solution doesn't require you to subclass and works if the user types directly or pastes text!

我扩展了 KmKndy 的答案,以便占位符保持可见,直到用户开始编辑UITextView而不是点击它。这反映了 Twitter 和 Facebook 应用程序中的功能。如果用户直接键入或粘贴文本,我的解决方案不需要您进行子类化和工作!

Example of PlaceholderTwitter App

占位符示例推特应用

- (void)textViewDidChangeSelection:(UITextView *)textView{
    if ([textView.text isEqualToString:@"What's happening?"] && [textView.textColor isEqual:[UIColor lightGrayColor]])[textView setSelectedRange:NSMakeRange(0, 0)];

}

- (void)textViewDidBeginEditing:(UITextView *)textView{

    [textView setSelectedRange:NSMakeRange(0, 0)];
}

- (void)textViewDidChange:(UITextView *)textView
{
    if (textView.text.length != 0 && [[textView.text substringFromIndex:1] isEqualToString:@"What's happening?"] && [textView.textColor isEqual:[UIColor lightGrayColor]]){
        textView.text = [textView.text substringToIndex:1];
        textView.textColor = [UIColor blackColor]; //optional

    }
    else if(textView.text.length == 0){
        textView.text = @"What's happening?";
        textView.textColor = [UIColor lightGrayColor];
        [textView setSelectedRange:NSMakeRange(0, 0)];
    }
}

- (void)textViewDidEndEditing:(UITextView *)textView
{
    if ([textView.text isEqualToString:@""]) {
        textView.text = @"What's happening?";
        textView.textColor = [UIColor lightGrayColor]; //optional
    }
    [textView resignFirstResponder];
}

- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text{
    if (textView.text.length > 1 && [textView.text isEqualToString:@"What's happening?"]) {
         textView.text = @"";
         textView.textColor = [UIColor blackColor];
    }

    return YES;
}

just remember to set myUITextView with the exact text on creation e.g.

只记得在创建时使用确切的文本设置 myUITextView 例如

UITextView *myUITextView = [[UITextView alloc] init];
myUITextView.delegate = self;
myUITextView.text = @"What's happening?";
myUITextView.textColor = [UIColor lightGrayColor]; //optional

and make the parent class a UITextView delegate before including these methods e.g.

并在包含这些方法之前使父类成为 UITextView 委托,例如

@interface MyClass () <UITextViewDelegate>
@end

回答by clearlight

Below is a Swift port of "SAMTextView" ObjC code posted as one of the first handful of replies to the question. I tested it on iOS 8. I tweaked a couple of things, including the bounds offset for the placement of the placeholder text, as the original was too high and too far right (used suggestion in one of the comments to that post).

下面是“SAMTextView”ObjC 代码的 Swift 端口,作为对该问题的第一批回复之一发布。我在 iOS 8 上对其进行了测试。我调整了一些内容,包括用于放置占位符文本的边界偏移量,因为原始文本太高太靠右了(在该帖子的评论之一中使用了建议)。

I know there are a lot of simple solutions, but I like the approach of subclassing UITextView because it's reusable and I don't have to clutter classes utilizing it with the mechanisms.

我知道有很多简单的解决方案,但我喜欢继承 UITextView 的方法,因为它是可重用的,而且我不必将使用它的类与机制混在一起。

Swift 2.2:

斯威夫特 2.2:

import UIKit

class PlaceholderTextView: UITextView {

    @IBInspectable var placeholderColor: UIColor = UIColor.lightGrayColor()
    @IBInspectable var placeholderText: String = ""

    override var font: UIFont? {
        didSet {
            setNeedsDisplay()
        }
    }

    override var contentInset: UIEdgeInsets {
        didSet {
            setNeedsDisplay()
        }
    }

    override var textAlignment: NSTextAlignment {
        didSet {
            setNeedsDisplay()
        }
    }

    override var text: String? {
        didSet {
            setNeedsDisplay()
        }
    }

    override var attributedText: NSAttributedString? {
        didSet {
            setNeedsDisplay()
        }
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setUp()
    }

    override init(frame: CGRect, textContainer: NSTextContainer?) {
        super.init(frame: frame, textContainer: textContainer)
    }

    private func setUp() {
        NSNotificationCenter.defaultCenter().addObserver(self, selector: #selector(PlaceholderTextView.textChanged(_:)),
                                                         name: UITextViewTextDidChangeNotification, object: self)
    }

    func textChanged(notification: NSNotification) {
        setNeedsDisplay()
    }

    func placeholderRectForBounds(bounds: CGRect) -> CGRect {
        var x = contentInset.left + 4.0
        var y = contentInset.top  + 9.0
        let w = frame.size.width - contentInset.left - contentInset.right - 16.0
        let h = frame.size.height - contentInset.top - contentInset.bottom - 16.0

        if let style = self.typingAttributes[NSParagraphStyleAttributeName] as? NSParagraphStyle {
            x += style.headIndent
            y += style.firstLineHeadIndent
        }
        return CGRect(x: x, y: y, width: w, height: h)
    }

    override func drawRect(rect: CGRect) {
        if text!.isEmpty && !placeholderText.isEmpty {
            let paragraphStyle = NSMutableParagraphStyle()
            paragraphStyle.alignment = textAlignment
            let attributes: [ String: AnyObject ] = [
                NSFontAttributeName : font!,
                NSForegroundColorAttributeName : placeholderColor,
                NSParagraphStyleAttributeName  : paragraphStyle]

            placeholderText.drawInRect(placeholderRectForBounds(bounds), withAttributes: attributes)
        }
        super.drawRect(rect)
    }
}

Swift 4.2:

斯威夫特 4.2:

import UIKit

class PlaceholderTextView: UITextView {

    @IBInspectable var placeholderColor: UIColor = UIColor.lightGray
    @IBInspectable var placeholderText: String = ""

    override var font: UIFont? {
        didSet {
            setNeedsDisplay()
        }
    }

    override var contentInset: UIEdgeInsets {
        didSet {
            setNeedsDisplay()
        }
    }

    override var textAlignment: NSTextAlignment {
        didSet {
            setNeedsDisplay()
        }
    }

    override var text: String? {
        didSet {
            setNeedsDisplay()
        }
    }

    override var attributedText: NSAttributedString? {
        didSet {
            setNeedsDisplay()
        }
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
        setUp()
    }

    override init(frame: CGRect, textContainer: NSTextContainer?) {
        super.init(frame: frame, textContainer: textContainer)
    }

    private func setUp() {
        NotificationCenter.default.addObserver(self,
         selector: #selector(self.textChanged(notification:)),
         name: Notification.Name("UITextViewTextDidChangeNotification"),
         object: nil)
    }

    @objc func textChanged(notification: NSNotification) {
        setNeedsDisplay()
    }

    func placeholderRectForBounds(bounds: CGRect) -> CGRect {
        var x = contentInset.left + 4.0
        var y = contentInset.top  + 9.0
        let w = frame.size.width - contentInset.left - contentInset.right - 16.0
        let h = frame.size.height - contentInset.top - contentInset.bottom - 16.0

        if let style = self.typingAttributes[NSAttributedString.Key.paragraphStyle] as? NSParagraphStyle {
            x += style.headIndent
            y += style.firstLineHeadIndent
        }
        return CGRect(x: x, y: y, width: w, height: h)
    }

    override func draw(_ rect: CGRect) {
        if text!.isEmpty && !placeholderText.isEmpty {
            let paragraphStyle = NSMutableParagraphStyle()
            paragraphStyle.alignment = textAlignment
            let attributes: [NSAttributedString.Key: Any] = [
            NSAttributedString.Key(rawValue: NSAttributedString.Key.font.rawValue) : font!,
            NSAttributedString.Key(rawValue: NSAttributedString.Key.foregroundColor.rawValue) : placeholderColor,
            NSAttributedString.Key(rawValue: NSAttributedString.Key.paragraphStyle.rawValue)  : paragraphStyle]

            placeholderText.draw(in: placeholderRectForBounds(bounds: bounds), withAttributes: attributes)
        }
        super.draw(rect)
    }
}