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Code Quality Rank: L5
Monthly Downloads: 0
Programming language: Swift
License: MIT License
Tags: UI     TextField & TextView    
Latest version: v0.7.1

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README

GrowingTextView

Version License Platform Language Language Language Language

Requirements

iOS 8.0 or above

Installation

CocoaPods

GrowingTextView is available through CocoaPods. To install it, simply add the following line to your Podfile:

Swift 5.0

pod 'GrowingTextView', '0.7.1'

Swift 4.2

pod 'GrowingTextView', '0.6.1'

Swift 4.1

pod 'GrowingTextView', '~> 0.5'

Swift 3

pod 'GrowingTextView', '~> 0.4'

Swift 2.3 (Stopped update since Sep 2016)

pod 'GrowingTextView', :git => 'https://github.com/KennethTsang/GrowingTextView.git', :branch => 'swift2'

Carthage

GrowingTextView is also available through Carthage. To install it, add the following line to your Cartfile:

Swift 5.0

github "KennethTsang/GrowingTextView" ~> 0.7

Swift 4.2

github "KennethTsang/GrowingTextView" ~> 0.6

Swift 4.1

github "KennethTsang/GrowingTextView" ~> 0.5

Swift 3

github "KennethTsang/GrowingTextView" ~> 0.4

Swift 2.3 (Stopped update since Sep 2016)

github "KennethTsang/GrowingTextView" "swift2"

Manually

Copy GrowingTextView.swift into your project.

Usage

Example

GrowingTextview is just a textview, download the example to see how to use it as a input toolbar like other instant messaging apps.

Using GrowingTextview programmatically

let textView = GrowingTextView()
textView.delegate = self
addSubview(textView)

Using GrowingTextview in Storyboard

  1. Drag a TextView into Storyboard.
  2. Set class to "GrowingTextView".
  3. Set delegate to it's view controller.
automaticallyAdjustsScrollViewInsets

Sometime the view controller may incorrectly adjust the inset of textview automatically. To avoid this, set automaticallyAdjustsScrollViewInsets to false

override func viewDidLoad() {
    super.viewDidLoad()
    automaticallyAdjustsScrollViewInsets = false
}

Customization

Parameter Type Description Default
maxLength Int Maximum text length. Exceeded text will be trimmed. 0 means no limit. 0
trimWhiteSpaceWhenEndEditing Bool Trim white space and new line characters when textview did end editing. true
placeholder String? Placeholder text. nil
placeholderColor UIColor Placeholder text color. UIColor(white: 0.8, alpha: 1.0)
attributedPlaceholder NSAttributedString? Attributed Placeholder text. nil
minHeight CGFloat Minimum height of textview. 0.0
maxHeight CGFloat Maximum height of textview. 0.0

Examples

textView.maxLength = 140
textView.trimWhiteSpaceWhenEndEditing = false
textView.placeholder = "Say something..."
textView.placeholderColor = UIColor(white: 0.8, alpha: 1.0)
textView.minHeight = 25.0
textView.maxHeight = 70.0
textView.backgroundColor = UIColor.whiteColor()
textView.layer.cornerRadius = 4.0

Animation

  1. Adopt GrowingTextViewDelegate instead of UITextViewDelegate.
  2. Implement textViewDidChangeHeight.
  3. Call layoutIfNeeded() on superview inside the animation.
class ViewController: UIViewController, GrowingTextViewDelegate {
    func textViewDidChangeHeight(_ textView: GrowingTextView, height: CGFloat) {
       UIView.animate(withDuration: 0.2) {
           self.view.layoutIfNeeded()
       }
    }
}

Delegate

GrowingTextViewDelegate is inherited from UITextViewDelegate. You may use it's delegate function as a normal UITextView.

class ViewController: UIViewController, GrowingTextViewDelegate {
    func textViewDidChange(_ textView: UITextView) {
        ...
    }
    func textViewDidEndEditing(_ textView: UITextView) {
        ...
    }
}

Check out UITextViewDelegate here: https://developer.apple.com/reference/uikit/uitextviewdelegate

Author

Kenneth Tsang, kenneth.tsang@me.com

License

GrowingTextView is available under the MIT license. See the LICENSE file for more info.


*Note that all licence references and agreements mentioned in the GrowingTextView README section above are relevant to that project's source code only.