ButtonTheme constructor

ButtonTheme({Key key, ButtonTextTheme textTheme: ButtonTextTheme.normal, ButtonBarLayoutBehavior layoutBehavior: ButtonBarLayoutBehavior.padded, double minWidth: 88.0, double height: 36.0, EdgeInsetsGeometry padding, ShapeBorder shape, bool alignedDropdown: false, Color buttonColor, Color disabledColor, Color highlightColor, Color splashColor, ColorScheme colorScheme, MaterialTapTargetSize materialTapTargetSize, Widget child })

Creates a button theme.

The textTheme, minWidth, height, and colorScheme arguments must not be null.

Implementation 

ButtonTheme({
  Key key,
  ButtonTextTheme textTheme = ButtonTextTheme.normal,
  ButtonBarLayoutBehavior layoutBehavior = ButtonBarLayoutBehavior.padded,
  double minWidth = 88.0,
  double height = 36.0,
  EdgeInsetsGeometry padding,
  ShapeBorder shape,
  bool alignedDropdown = false,
  Color buttonColor,
  Color disabledColor,
  Color highlightColor,
  Color splashColor,
  ColorScheme colorScheme,
  MaterialTapTargetSize materialTapTargetSize,
  Widget child,
}) : assert(textTheme != null),
     assert(minWidth != null && minWidth >= 0.0),
     assert(height != null && height >= 0.0),
     assert(alignedDropdown != null),
     assert(layoutBehavior != null),
     data = ButtonThemeData(
       textTheme: textTheme,
       minWidth: minWidth,
       height: height,
       padding: padding,
       shape: shape,
       alignedDropdown: alignedDropdown,
       layoutBehavior: layoutBehavior,
       buttonColor: buttonColor,
       disabledColor: disabledColor,
       highlightColor: highlightColor,
       splashColor: splashColor,
       colorScheme: colorScheme,
       materialTapTargetSize: materialTapTargetSize,
     ),
     super(key: key, child: child);