center widget flutter code example

Example 1: flutter column widget vertical center

Column(
  mainAxisAlignment: MainAxisAlignment.center,
  crossAxisAlignment: CrossAxisAlignment.center,
  children:children,
)

Example 2: get position of a widget in screen flutter

extension GlobalKeyEx on GlobalKey {
  Rect get globalPaintBounds {
    final renderObject = currentContext?.findRenderObject();
    var translation = renderObject?.getTransformTo(null)?.getTranslation();
    if (translation != null && renderObject.paintBounds != null) {
      return renderObject.paintBounds
          .shift(Offset(translation.x, translation.y));
    } else {
      return null;
    }
  }
}

Example 3: transform widget in flutter

Transform.rotate(  angle: 1.0,  child: Container(    height: 200.0,    width: 200.0,    color: Colors.pink,  ),),