getPadding method Null safety
Returns the standard padding for a button at index out of a total number of buttons.
Standard Material TextSelectionToolbars have buttons with different padding depending on their position in the toolbar.
Implementation
static EdgeInsets getPadding(int index, int total) {
assert(total > 0 && index >= 0 && index < total);
final _TextSelectionToolbarItemPosition position = _getPosition(index, total);
return EdgeInsets.only(
left: _getLeftPadding(position),
right: _getRightPadding(position),
);
}