45 lines
1.3 KiB
Dart
45 lines
1.3 KiB
Dart
import 'package:flutter/material.dart';
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class CustomAppBar extends StatelessWidget implements PreferredSizeWidget {
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final String title;
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final Widget? leading;
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final List<Widget>? actions;
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final bool showLeading; // 新增的参数，用于控制是否显示 leading
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final VoidCallback? onBackPressed;
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const CustomAppBar({
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super.key,
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required this.title,
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this.leading,
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this.actions,
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this.showLeading = true, // 默认情况下显示 leading
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this.onBackPressed,
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});
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@override
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Widget build(BuildContext context) {
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return AppBar(
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automaticallyImplyLeading: showLeading, // 添加这个属性来控制是否自动显示返回按钮
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leading: showLeading
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? (leading ??
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IconButton(
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icon: Image.asset('images/arraw.png', width: 11, height: 22),
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onPressed: () {
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if (onBackPressed != null) {
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onBackPressed!(); // 调用回调函数
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} else {
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Navigator.of(context).pop(); // 默认行为
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}
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},
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))
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: null, // 如果 showLeading 为 false，则不显示 leading
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title: Text(title),
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actions: actions,
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// toolbarHeight: 50,
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);
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}
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@override
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Size get preferredSize => const Size.fromHeight(kToolbarHeight);
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}
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