cover over widget tree when calling api flutter code example

Example: flutter widgets example

Column(
  crossAxisAlignment: CrossAxisAlignment.start,

  children: <Widget>[
    Text('We move under cover and we move as one'),
    Text('Through the night, we have one shot to live another day'),
    Text('We cannot let a stray gunshot give us away'),
    Text('We will fight up close, seize the moment and stay in it'),
    Text('It’s either that or meet the business end of a bayonet'),
    Text('The code word is ‘Rochambeau,’ dig me?'),
    Text('Rochambeau!', style: DefaultTextStyle.of(context).style.apply(fontSizeFactor: 2.0)),
  ],
)