Awesome

AutocompleteField

Subclass of UITextField that shows inline suggestions while typing.

Plug and play replacement for UITextField.
Delimiter support. Perfect when autocompleting email addresses.
Two suggestion modes (word and sentence, see API below).
Works with custom fonts, borders etc.
Super lightweight and zero dependencies.

AutocompleteField

Requirements

iOS 10.0+
Swift 4.2+

Installation

CocoaPods

Add the following to your Podfile:

target 'MyApp' do
  pod 'AutocompleteField', '~> 2.0'
end

Swift Package Manager

Select File > Swift Packages > Add Package Dependency.
Enter https://github.com/filipstefansson/AutocompleteField.git in the Choose Package Repository dialog.

See Apple docs for more information.

Manually

Copy /Sources/AutocompleteField.swift to your project. There are no other dependencies.

Usage

You use this textfield in the same way as the regular UITextField, through Storyboards or programmatically.

Basic

import AutocompleteField

...

let textfield = AutocompleteField(frame: CGRect(x: 20, y: 20, width: 200, height: 40))
textfield.placeholder = "Name"

textfield.suggestions = [
  "George Washington",
  "Thomas Jefferson",
  "John Adams",
  "Theodore Roosevelt",
  "John F. Kennedy",
  "George W. Bush",
]

self.view.addSubview(textfield)

Delimiter

The delimiter can be used to only suggest an autocompletion after a specific character is found in the string. In this example we look for the @ character, and then provide suggestions for email providers.

import AutocompleteField

...

// email textfield autocompleting email providers
let textfield = AutocompleteField(frame: CGRect(x: 20, y: 20, width: 200, height: 40))
textfield.placeholder = "Email"
textfield.keyboardType = .emailAddress

textfield.suggestions = [
  "gmail.com",
  "icloud.com",
  "outlook.com",
]

// add the delimiter
textfield.delimiter = "@"

self.view.addSubview(textfield)

API

Property	Type	Description
`suggestionColor`	`UIColor`	The color of the suggestion. Defaults to the default placeholder color.
`suggestion`	`String`	The current suggestion shown. Read only.
`suggestions`	`[String]`	Array of suggestions.
`suggestionType`	`SuggestionType`	The type of suggestion that should be used. `.Word` will only hint the the next word in the suggestion and `.Sentence` will show the whole suggestion. Defaults to `.Sentence`.
`pixelCorrections`	`CGPoint`	Move the suggestion label up/down left/right. Use this to correct any differences if the suggestion doesn't match the input value for some reason.
`horizontalPadding`	`CGFloat`	Add padding to your textfield. Automatically set when using a `borderStyle` that has padding.
`delimiter`	`String`	Add a delimiter to only show a suggestion if there's more than one occurance of the delimiter. Perfect for autocompleting email providers.

Demo

Check out the example project.

License

AutocompleteField is provided under the MIT License. See LICENSE for details.