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flutter screen adapter
flutter_screen_adapter #
README of English
Flutter 应用不同终端屏幕适配方案。
使用步骤 #
步骤1:添加 flutter_screen_adapter 到 pubspec.yaml 中 #
dependencies:
flutter:
sdk: flutter
flutter_screen_adapter: ^0.0.1
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步骤2:初始化 #
import 'package:flutter_screen_adapter/flutter_screen_adapter.dart';
class MyHomePage extends StatefulWidget {
MyHomePage({Key key, this.title}) : super(key: key);
final String title;
@override
_MyHomePageState createState() => _MyHomePageState();
}
class _MyHomePageState extends State<MyHomePage> {
@override
Widget build(BuildContext context) {
/// 注意:
/// 一定要在 `WidgetsApp` 或者 `MaterialApp widget` 中初始化
/// 否则,会因为 `MediaQuery` 找不到报错
ScreenAdapter.init(context);
return ...
}
}
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步骤3:设置元素大小 #
// 正方形
Container(
width: ScreenAdapter.value(100),
height: ScreenAdapter.value(100),
color: Colors.yellow,
child: null
)
// 长方形
Container(
width: ScreenAdapter.value(200),
height: ScreenAdapter.value(100),
color: Colors.red,
child: null
)
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提供的属性 #
这里列举两个常用的属性 #
...
/// 根据设备信息得到自适应值
/// 用来使用不同屏幕达到跟设计稿一致效果
///
/// [vertical] 是否是垂直自适应数值,默认是水平
static double value(num value, {vertical = false});
/// 获取当前设备屏幕宽度
///
static double get screenWidth;
...
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