Flutter 相对布局实现:Stack 加上Align

 
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import 'package:flutter/material.dart';
 
/// 使用 MediaQuery 进行全面屏适配
void main() {
  runApp(HomePage());
}
 
class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: HomePage(),
    );
  }
}
 
class HomePage extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    /// 获取当前的 padding 信息
 
    return Container(
      width: 500,
      height: 45,
      color: Colors.yellow,
      child: Stack(
        children: <Widget>[
          Align(
            alignment: Alignment(-0.9, 0),
            child: Icon(
              Icons.card_travel,
              size: 80,
              color: Colors.green,
            ),
          ),
          Align(
            alignment: Alignment(-0.5, -0.2),
            child: Icon(
              Icons.card_travel,
              size: 80,
              color: Colors.pink,
            ),
          ),
          Align(
            alignment: Alignment(-0.5, 0),
            child: Icon(
              Icons.card_travel,
              size: 80,
              color: Colors.black,
            ),
          ),
        ],
      ),
    );
  }
}

  

 

posted @   KingWang588  阅读(260)  评论(0编辑  收藏  举报
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