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Type Writer Text

A simple typewriter text animation wrapper for flutter, supports iOS, Android, web, Windows, macOS, and Linux.

Preview

Install

Add this line to your pubspec.yaml.

dependencies:
  typewritertext: ^3.0.8

Usage

First, import the typewriter package.

import 'package:typewritertext/typewritertext.dart';

And use it like this

TypeWriter.text(
  'lorem ipsum dolot sit amet ...',
  duration: const Duration(milliseconds: 50),
);

And for the builder, you need to initiate a controller like this one.

final controller = TypeWriterController(text: 'Hello World',
  duration: const Duration(milliseconds: 50),
);

// also if you want the typewriter to not only changing
// the character but also words, you can use this controller.

final valueController = TypeWriterController.fromValue(
  TypeWriterValue([
    'First Paragraph',
    'Next Paragraph',
    'Last Paragraph',
  ]),
  duration: const Duration(milliseconds: 50),
);

// you can also integrate the controller with Stream<String> like this one.

final streamController = TypeWriterController.fromStream(
  StreamController<String>().stream
);

TypeWriter(
  controller: controller, // valueController // streamController
  builder: (context, value) {
    return Text(
      value.text,
      maxLines: 2,
      minFontSize: 2.0,
    );
  }
);

Documentation

TypeWriter.text

Property	Purpose
repeat	Specifies whether the animation should repeat once completed (default is `false`).
enabled	Is the flag to play the animation or not.
maintainSize	Specifies whether the size of the layout text should be maintained.
duration	Delay time between each character.
alignment	Alignment of the text layout.
text	The text to be displayed during the typewriter animation.
onChanged	Callback function for when the text is changed.
textAlign	Alignment of the text.
style	Style of the text.
maxLines	Maximum number of lines to be displayed.
overflow	Overflow behavior of the text.
semanticsLabel	Semantics label of the text.
softWrap	Specifies whether the text should break at soft line breaks.
strutStyle	Strut style of the text.
locale	Locale of the text.
textDirection	Text direction of the text.
textHeightBehavior	Text height behavior of the text.
textWidthBasis	Text width basis of the text.
selectionColor	Color of the selection.
onFinished	Is a callback that triggered when the animation is done. This requires `enabled` as `true` and repeat as `false`.

TypeWriter

Property	Purpose
controller	Controller that manage the animation. You can use `TypeWriterController` or `TypeWriterController.fromValue`.
enabled	Is the flag to play the animation or not.
builder	Builder that contains `TypeWriterValue` in sequence.
onFinished	Is a callback that triggered when the animation is done. This requires `enabled` as `true` and repeat as `false`.

Example

typewritertext/example/lib/main.dart