text_wrap_auto_size 1.0.0+1

Wraps text and auto sizes it dynamically with respect to the given space.

text_wrap_auto_size

Wraps text and auto sizes it with respect to the given space.

Changing the text or changing the boundaries triggers a new layout cycle, thus adapting the text size dynamically.

Requirements

The widget requires a given width and height.

It will throw an Exception, if it reveives an unbound (infinite) width or height.

More about Flutter contraints here.

Usage

Generally, the TextStyle is respected.

final style = TextStyle(
    fontWeight: FontWeight.bold, 
    color: Colors.red);

final text = Text('text', style: style);

TextWrapAutoSize(text);

Define width and height.

SizedBox(
    width:250,
    height:250,
    child: TextWrapAutoSize(Text('text'))
);

In some case, width and height can be determined by wrapping the widget in Expanded.

Expanded(
    child: TextWrapAutoSize(Text('text'))
);

Use it as the Scaffold's body:

@override
Widget build(BuildContext context) {
    return SafeArea(
        child: Scaffold(
        body: TextWrapAutoSize(Text('text')),
        ),
    );
}

Issues and Background

The package follows the most simple apporach I could think of. There might be a more efficient approach.

Internally, the widget performs a binary-search for the optimal font size and renders the text multiple times in its own render-tree.

The code measuring the widget size can be found in the Flutter docs.

Open an issue on Github.