在CentOS系統中添加Flutter動畫效果,可以按照以下步驟進行:
.rpm
文件)。.rpm
文件所在的目錄。sudo yum install flutter-<version>.rpm
將<version>
替換為你下載的具體版本號。~/.bashrc
或~/.zshrc
文件,添加以下行:export PATH="$PATH:$HOME/flutter/bin"
source ~/.bashrc # 或 source ~/.zshrc
flutter doctor
flutter create my_animation_project
my_animation_project
的新目錄,并在其中設置好Flutter環境。cd my_animation_project
lib/main.dart
文件。AnimatedContainer
、TweenAnimationBuilder
、Hero
等。AnimatedContainer
實現顏色漸變動畫:import 'package:flutter/material.dart';
void main() {
runApp(MyApp());
}
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
title: 'Flutter Animation Demo',
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: MyHomePage(),
);
}
}
class MyHomePage extends StatefulWidget {
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> with SingleTickerProviderStateMixin {
double _animationValue = 0.0;
void _startAnimation() {
setState(() {
_animationValue = 1.0;
});
}
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text('Flutter Animation Demo'),
),
body: Center(
child: AnimatedContainer(
duration: Duration(seconds: 2),
width: 200,
height: 200,
decoration: BoxDecoration(
color: Colors.blue.withOpacity(_animationValue),
),
child: Center(
child: Text(
'Hello, World!',
style: TextStyle(color: Colors.white),
),
),
),
),
floatingActionButton: FloatingActionButton(
onPressed: _startAnimation,
tooltip: 'Increment',
child: Icon(Icons.add),
),
);
}
}
flutter run
flutter doctor
檢查是否有任何潛在的問題。通過以上步驟,你應該能夠在CentOS系統中成功添加并運行Flutter動畫效果。祝你編程愉快!