dart - 如何创建自定义底部标签栏

Question

我想像附图一样实现 BottomAppNavigation。 但是，结合使用 BottomAppBar 和 FloatingAction 不会产生这种布局。

你能帮我把它做成中心项目吗？

Answer 1

添加依赖

dependencies:
  ff_navigation_bar: ^0.1.4

基本使用

import 'package:flutter/material.dart';
import 'package:ff_navigation_bar/ff_navigation_bar.dart';
...
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'Demonstration',
            ),
          ],
        ),
      ),
      bottomNavigationBar: FFNavigationBar(
        theme: FFNavigationBarTheme(
          barBackgroundColor: Colors.white,
          selectedItemBorderColor: Colors.yellow,
          selectedItemBackgroundColor: Colors.green,
          selectedItemIconColor: Colors.white,
          selectedItemLabelColor: Colors.black,
        ),
        selectedIndex: selectedIndex,
        onSelectTab: (index) {
          setState(() {
            selectedIndex = index;
          });
        },
        items: [
          FFNavigationBarItem(
            iconData: Icons.calendar_today,
            label: 'Schedule',
          ),
          FFNavigationBarItem(
            iconData: Icons.people,
            label: 'Contacts',
          ),
          FFNavigationBarItem(
            iconData: Icons.attach_money,
            label: 'Bills',
          ),
          FFNavigationBarItem(
            iconData: Icons.note,
            label: 'Notes',
          ),
          FFNavigationBarItem(
            iconData: Icons.settings,
            label: 'Settings',
          ),
        ],
      ),
    );

源代码 https://github.com/55Builds/Flutter-FFNavigationBar

这个依赖比FancyBottomNavigation有很多特性