我正在嘗試使用下面的代碼在影像周圍創建一個圓形邊框,并在圓形邊框的頂部對齊一個圖示。我正在看的是如下圖:

我的代碼如下,但效果并不完美:
Stack(
children: [
CircleAvatar(
radius: 60,
backgroundColor: Colors.white,
child: Container(
padding: EdgeInsets.all(2),
child: CircleAvatar(
radius: 70,
backgroundImage: AssetImage('assets/person_icon.png'),
backgroundColor: Colors.white,
//
)),
),
Positioned(
bottom: 100,
right: 50,
child: InkWell(
onTap: () {},
child: Container(
child: Padding(
padding: const EdgeInsets.all(2.0),
child: Icon(Icons.add_a_photo, color: colorBlue),
),
decoration: BoxDecoration(
border: Border.all(
width: 3,
color: Colors.white,
),
borderRadius: BorderRadius.all(
Radius.circular(
50,
),
),
color: Colors.white,
boxShadow: [
BoxShadow(
offset: Offset(2, 4),
color: Colors.black.withOpacity(
0.3,
),
blurRadius: 3,
),
]),
),
)),
],
),
正如您在上面可以看到的,我正在嘗試使用堆疊將每個小部件放在彼此之上,但無法實作。如果有人能幫我解決我錯過的地方,或者讓我知道如何實作這一點,我不知道。
提前致謝。
uj5u.com熱心網友回復:
只需將 Property 添加到 Stack Widget 即可clipBehavior: Clip.none,。
clipBehavior 將說明如何處理 Stack Widget 的 Clip。標準是hardEdge并切斷您的圖示。
所以你完成的作業代碼是 import 'package:flutter/material.dart';
class MyApp extends StatelessWidget {
const MyApp({Key? key}) : super(key: key);
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: Stack(
clipBehavior: Clip.none,
children: [
CircleAvatar(
radius: 60,
backgroundColor: Colors.white,
child: Container(
padding: EdgeInsets.all(2),
child: CircleAvatar(
radius: 70,
backgroundImage: AssetImage('assets/person_icon.png'),
backgroundColor: Colors.white,
//
),
),
),
Positioned(
bottom: 100,
right: 50,
child: InkWell(
onTap: () {},
child: Container(
child: Padding(
padding: const EdgeInsets.all(2.0),
child: Icon(Icons.add_a_photo, color: Colors.blue),
),
decoration: BoxDecoration(
border: Border.all(
width: 3,
color: Colors.white,
),
borderRadius: BorderRadius.all(
Radius.circular(
50,
),
),
color: Colors.white,
boxShadow: [
BoxShadow(
offset: Offset(2, 4),
color: Colors.black.withOpacity(
0.3,
),
blurRadius: 3,
),
],
),
),
),
),
],
),
),
);
}
}
void main() {
runApp(
const MaterialApp(
home: MyApp(),
),
);
}
uj5u.com熱心網友回復:
試試下面的代碼
Stack(
children: <Widget>[
Padding(
padding: EdgeInsets.only(top: 25),
child: Container(
padding: EdgeInsets.all(8),
height: 270,
width: 270,
decoration: BoxDecoration(
color: Colors.green,
shape: BoxShape.circle,
),
child: Container(
padding: EdgeInsets.all(8),
decoration: BoxDecoration(
color: Colors.white,
shape: BoxShape.circle,
),
child: ClipOval(
child: Container(
height: 250,
width: 250,
child: Image.network(
'https://miro.medium.com/max/1400/1*-6WdIcd88w3pfphHOYln3Q.png',
fit: BoxFit.cover,
),
),
),
),
),
),
Positioned(
top: 0,
left: .0,
right: .0,
child: Center(
child: CircleAvatar(
backgroundColor: Colors.green,
radius: 30.0,
child: Icon(
Icons.check,
color: Colors.white,
size: 40,
),
),
),
)
],
),
結果螢屏->
uj5u.com熱心網友回復:
默認clipBehavior開啟Stack是hardEdge。
clipBehavior: Clip.none在堆疊上使用。
并有圓形
customBorder: CircleBorder(),上使用InkWell。在容器上使用
shape: BoxShape.circle而不是圓形半徑。
為了更好的對齊使用
Positioned(
top: -12,//half of icon size
left: 0,
right: 0,
也可以像這里一樣更好地在 Stack 上提供大小。
/// fixing top widget size
SizedBox.square(
dimension: squareSize,
child: Stack(
clipBehavior: Clip.none,
children: [
Positioned.fill(
child: Padding(
padding: const EdgeInsets.all(8.0),
child: Container(
clipBehavior: Clip.hardEdge,
decoration: const ShapeDecoration(
shape: CircleBorder(),
),
child: Image.asset(
'assets/images/image01.png',
fit: BoxFit.cover,
),
),
),
),
///background circle, you also do it on image widget
Container(
decoration: BoxDecoration(
shape: BoxShape.circle,
border: Border.all(width: 5, color: Colors.green),
),
),
Positioned(
top: -12, // half of icon size
left: 0,
right: 0,
child: InkWell(
onTap: () {},
customBorder: const CircleBorder(),
child: Container(
width: 24 12, //icon size padding
height: 24 12,
alignment: Alignment.center,
decoration: const ShapeDecoration(
shape: CircleBorder(),
color: Colors.green,
),
child: Icon(
Icons.add_a_photo,
color: Colors.white,
),
),
),
),
],
),
)
玩轉尺寸和裝飾

uj5u.com熱心網友回復:
使用下面的代碼來實作
Center(
child: Stack(
children: [
Container(
height: 200,
child: CircleAvatar(
radius: 75,
backgroundColor: Colors.green,
child: CircleAvatar(
radius: 70,
backgroundColor: Colors.white,
child: Container(
padding: EdgeInsets.all(2),
child: const CircleAvatar(
radius: 60,
backgroundImage: NetworkImage("https://helostatus.com/wp-content/uploads/2021/09/pic-for-WhatsApp-HD.jpg"),
backgroundColor: Colors.white,
//
)),
),
),
),
Positioned(
left: 16,
right: 16,
top: 8,
child: InkWell(
onTap: () {},
child: const CircleAvatar(
backgroundColor: Colors.green,
radius: 16,
child: Icon(
Icons.check,
color: Colors.white,
),
)),
),
],
),
)[enter image description here][1]
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