Flutter TabBar karo Box Shadow: Pandhuan Implementasi

Kanggo aplikasi Shadow kothak menyang TabBar ing Flutter, sampeyan bisa Lebokake ing Container lan nggunakake BoxDecoration properti. Iki contone:

import 'package:flutter/material.dart';  
  
void main() {  
  runApp(MyApp());  
}  
  
class MyApp extends StatelessWidget {  
  @override  
  Widget build(BuildContext context) {  
    return MaterialApp(  
      home: MyHomePage(),  
   );  
  }  
}  
  
class MyHomePage extends StatelessWidget {  
  @override  
  Widget build(BuildContext context) {  
    return DefaultTabController(  
      length: 3,  
      child: Scaffold(  
        appBar: AppBar(  
          title: Text('TabBar with Shadow'),  
          bottom: TabBar(  
            tabs: [  
              Tab(text: 'Tab 1'),  
              Tab(text: 'Tab 2'),  
              Tab(text: 'Tab 3'),  
            ],  
         ),  
       ),  
        body: TabBarView(  
          children: [  
            Container(color: Colors.red),  
            Container(color: Colors.green),  
            Container(color: Colors.blue),  
          ],  
       ),  
     ),  
   );  
  }  
}  

Yen sampeyan pengin nambah efek bayangan menyang TabBar, sampeyan bisa mbungkus TabBar ing a Container lan aplikasi BoxDecoration:

Container(  
  decoration: BoxDecoration(  
    boxShadow: [  
      BoxShadow(  
        color: Colors.grey.withOpacity(0.5),  
        spreadRadius: 5,  
        blurRadius: 7,  
        offset: Offset(0, 3), // changes position of shadow  
     ),  
    ],  
 ),  
  child: TabBar(  
    tabs: [  
      Tab(text: 'Tab 1'),  
      Tab(text: 'Tab 2'),  
      Tab(text: 'Tab 3'),  
    ],  
 ),  
),  

Ing conto iki, BoxShadow digunakake kanggo nggawe efek bayangan kanggo TabBar. Sampeyan bisa ngatur warna, radius panyebaran, radius blur, lan ngimbangi kanggo entuk tampilan bayangan sing dikarepake.

Elinga nyetel sifat bayangan supaya cocog karo syarat desain sampeyan.

Elinga yen nggunakake bayangan bisa uga ora bisa digunakake yen sampeyan AppBar wis nggunakake elevasi. Ing kasus kaya mengkono, sampeyan bisa uga kudu nggunakake widget khusus utawa nyetel desain kanggo nampung efek loro.