🔥 Custom Animated TabBar in Flutter | Flutter Custom TabBar View tutorial 2026 скачать в хорошем качестве

🔥 Custom Animated TabBar in Flutter | Flutter Custom TabBar View tutorial 2026

🔥 Custom Animated TabBar in Flutter | Flutter Custom TabBar View tutorial 2026 *****. Code used in this video. **************** //Step 01: Remember : Add bellow List of String brackets as well. late TabController _tabController; final List String tabs = ['Screen1', 'Screen2', 'Screen3', 'Screen3']; int _selectedIndex = 0; //Step 02: _tabController = TabController(length: tabs.length, vsync: this); _tabController.addListener(() { if (_tabController.indexIsChanging) return; setState(() { _selectedIndex=_tabController.index; }); }); // Step 03 final double screenWidth = MediaQuery.of(context).size.width; final int count = tabs.length; final double tabWidth = screenWidth / count; // ANimated Indicator //Step 04: AnimatedAlign( duration: const Duration(milliseconds: 350), alignment: Alignment( _selectedIndex == 0 ? -1 : _selectedIndex == tabs.length - 1 ? 1 : (_selectedIndex / (tabs.length - 1)) * 2 - 1, 0, // -- y-axis stays centered ), curve: Curves.easeOutQuart, child: Container( width: tabWidth * 0.90, // 90% of tab width (always centered) height: 34, margin: EdgeInsets.only(top: 10), decoration: BoxDecoration( color: Colors.indigo, borderRadius: BorderRadius.circular(10), boxShadow: [ BoxShadow( color: Colors.indigo.withOpacity(0.25), blurRadius: 8, offset: const Offset(0, 4), ), ], ), ), ), //Step 05: Row( children: List.generate(count, (index) { final bool selected = index == _selectedIndex; return Expanded( child: GestureDetector( behavior: HitTestBehavior.opaque, onTap: () { _onTap(index);}, child: SizedBox( height: 56, child: Center( child: TweenAnimationBuilder double ( tween: Tween(begin: selected ? 1.0 : 0.9, end: selected ? 1.0 : 0.9), duration: const Duration(milliseconds: 300), builder: (context, scale, child) { return Transform.scale( scale: selected ? 1.02 : 0.94, child: Column( mainAxisSize: MainAxisSize.min, children: [ Text( tabs[index], style: TextStyle( color: selected ? Colors.white : Colors.indigo, fontWeight: selected ? FontWeight.w700 : FontWeight.w600, fontSize: selected ? 15 : 14, ), ), //const SizedBox(height: 2), ], ), ); }, ), ), ), ), ); }), ), /// Step 06 TabBarView( controller: _tabController, children: [ _buildPage('Screen 01', Colors.indigo.shade100), _buildPage('Screen 02', Colors.indigo.shade100), _buildPage('Screen 03', Colors.indigo.shade100), _buildPage('Screen 04', Colors.indigo.shade100), ], ), //Step 07 Widget _buildPage(String title, Color bg) { return Container( color: bg, child: Center( child: Text(title, style: const TextStyle(fontSize: 24, fontWeight: FontWeight.bold)), ), ); }