build method
构建 Table widget
Implementation
Table build() {
// Flutter Table 不支持 borderCollapse 参数,通过 border 实现
return Table(
children: children,
columnWidths: _columnWidths,
defaultColumnWidth: _defaultColumnWidth ?? const FlexColumnWidth(1.0),
textDirection: _textDirection,
border: _border,
defaultVerticalAlignment: _defaultVerticalAlignment,
textBaseline: _textBaseline,
);
}