titleForRowInComponent method

@override String titleForRowInComponent(int component, int index)

定义某列某行所显示的内容，component 代表列的索引，index 代表 第component列中的第 index 个元素

Implementation

@override
String titleForRowInComponent(int component, int index) {
  if (0 == component) {
    return data[index].text;
  } else if (1 == component) {
    BrnMultiDataPickerEntity brnPickerItem = data[firstSelectedIndex];
    List<BrnMultiDataPickerEntity> secondList = brnPickerItem.children;
    return secondList[index].text;
  } else {
    BrnMultiDataPickerEntity brnPickerItem = data[firstSelectedIndex];
    List<BrnMultiDataPickerEntity> secondList = brnPickerItem.children;
    List<BrnMultiDataPickerEntity> threeList =
        secondList[secondSelectedIndex].children;
    return threeList[index].text;
  }
}