liangchengyou / wow_english

  import 'package:flutter/material.dart';

  import 'package:flutter_screenutil/flutter_screenutil.dart';

  import 'package:wow_english/common/extension/string_extension.dart';

  
  class WEAppBar extends StatelessWidget implements PreferredSizeWidget {
    final String? titleText;
    final bool? centerTitle;
    final VoidCallback? onBack;
    final Color? backgroundColor;
    final PreferredSizeWidget? bottom;

    final Widget? leading;
    final List<Widget>? actions;

  
    const WEAppBar(
        {this.titleText,
        this.centerTitle = true,
        this.onBack,
        this.backgroundColor,
        this.bottom,
        this.leading,
        this.actions,
        super.key});

  
    @override
    Widget build(BuildContext context) {
      return AppBar(
        centerTitle: centerTitle,

        title: Text(
          titleText ?? '',
          style: TextStyle(
            fontSize: 25.sp,
            color: const Color(0xFF333333),
            fontWeight: FontWeight.w700,

          ),
        ),

        leading: leading ??
            GestureDetector(
              onTap: () {
                Navigator.pop(context);
              },
              child: Container(
                alignment: Alignment.center,
                child: Image.asset(
                  'back_around'.assetPng,
                  height: 40.h,
                  width: 40.w,
                ),
              ),
            ),
        backgroundColor: backgroundColor ?? Colors.white,
        actions: actions ?? [],

      );
    }
  
    @override
    // TODO: implement preferredSize

    Size get preferredSize => Size.fromHeight(kToolbarHeight + (bottom == null ? 0.0 : bottom!.preferredSize.height));
  }