app-starlock/lib/tools/showBottomSheetTool.dart

import 'package:flutter/material.dart';
import 'package:flutter_picker/flutter_picker.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';

///2023/7/17
///底部弹出选择器工具类
typedef StringClickCallback = void Function(int selectIndex, Object selectStr);
typedef ArrayClickCallback = void Function(List<int> selecteds, List<dynamic> strData);
typedef DateClickCallback = void Function(dynamic selectDateStr, dynamic selectDate);

class ShowBottomSheetTool {

  ShowBottomSheetTool({
    this.pickerHeight = 200.0,
    this.itemHeight = 45.0,
    this.btnColor = Colors.black,
    this.titleColor = const Color.fromRGBO(127, 127, 127, 1.0),
    this.textFontSize = 16.0
  });
  //选择器的高度
  double pickerHeight;
  //单行的高度
  double itemHeight;
  //按钮颜色
  Color btnColor;
  //文本颜色
  Color titleColor;
  //字体大小
  double textFontSize;

  ///单列
  void showSingleRowPicker<T>(
      BuildContext context, {
        required List<T> data,
        String? title,
        String? cancelTitle,
        String? sureTitle,
        int? normalIndex,
        PickerDataAdapter? adapter,
        required StringClickCallback clickCallBack,
      }) {
    openPicker(context,
        title: title!,
        cancelTitle: cancelTitle!,
        sureTitle: sureTitle!,
        selecteds: [normalIndex ?? 0],
        adapter: adapter ?? PickerDataAdapter(pickerData: data, isArray: false),
        clickCallBack: (Picker picker, List<int> selecteds) {
          clickCallBack(selecteds[0], data[selecteds[0]] as Object);
        });
  }

  ///多列
  void showArrayPicker<T>(
      BuildContext context, {
        required List<T> data,
        String? title,
        List<int>? normalIndex,
        PickerDataAdapter? adapter,
        required ArrayClickCallback clickCallBack,
      }) {
    openPicker(context,
        selecteds: normalIndex!,
        title: title!,
        adapter: adapter ?? PickerDataAdapter(pickerData: data, isArray: true),
        clickCallBack: (Picker picker, List<int> selecteds) {
          clickCallBack(selecteds, picker.getSelectedValues());
        });
  }

  void openPicker(
      BuildContext context, {
        required PickerAdapter adapter,
        String? title,
        String? cancelTitle,
        String? sureTitle,
        List<int>? selecteds,
        required PickerConfirmCallback clickCallBack,
      }) {
    Picker(
      adapter: adapter,
      title: Text(
        title ?? '请选择'.tr,
        style: TextStyle(
          color: titleColor,
          fontSize: textFontSize,
        ),
      ),
      selecteds: selecteds,
      confirmText: sureTitle??'确定'.tr,
      cancelText: cancelTitle??'取消'.tr,
      cancelTextStyle: TextStyle(
        color: btnColor,
        fontSize: textFontSize,
      ),
      confirmTextStyle: TextStyle(
        color: btnColor,
        fontSize: textFontSize,
      ),
      textAlign: TextAlign.right,
      itemExtent: itemHeight,
      height: pickerHeight,
      selectedTextStyle: const TextStyle(
        color: Colors.black,
      ),
      onConfirm: clickCallBack,
    ).showModal(context);
  }
}