如何更改 Stack 中 Container 的位置?
How to change position of Container inside Stack?
我试图在我的堆栈中显示一个按钮,但它没有得到正确的位置。该按钮是回复按钮。我添加了一只脚,现在您可以检查它,我想要的是在底部 window 的右侧显示它,底部和按钮之间有一点间距。
希望任何人都可以提供帮助。如果您需要更多信息,请发表评论。
@override
Widget build(BuildContext context) {
var size = MediaQuery.of(context).size;
try {
return Scaffold(
body: StreamBuilder(
stream: mystreamofallvideos,
builder: (context, snapshot) {
if (snapshot.hasData &&
snapshot.connectionState != ConnectionState.waiting) {
return PageView.builder(
itemCount: snapshot.data.docs.length,
controller:
PageController(initialPage: 0, viewportFraction: 1),
scrollDirection: Axis.vertical,
itemBuilder: (context, index) {
DocumentSnapshot videos = snapshot.data.docs[index];
return Stack(children: [
Videoplayeritem(widget.videoid),
Column(children: [
Align(
alignment: Alignment.bottomLeft,
child: Container(
height: 100,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: [
IconButton(
icon: Icon(
Icons.close,
color: Colors.white,
size: 35,
),
onPressed: () {
Navigator.of(context).pop();
}),
SizedBox(
width: 190,
),
],
),
),
),
Container(
color: Colors.red,
width: 210,
height: 94,
//color: Colors.blue.withOpacity(0.5),
child: InkWell(
onTap: () => sharevideo(
widget.videoid, videos.data()['id']),
child: Icon(Icons.reply,
size: 55, color: Colors.white),
),
),
]),
//starssonthe right
]);
});
} else {
return Center(child: CircularProgressIndicator());
}
}),
);
} catch (e) {
e.toString();
}
}
}
这是它的样子
enter image description here
您可以使用 Positioned
或 Align
小部件包装您的容器
喜欢:
Positioned(
top: 0.0,
left: 0.0,
child: Icon(Icons.message,
size: 128.0, color: Colors.greenAccent[400]), //Icon
),
对齐并在底部添加填充:
Align(
alignment: Alignment.bottomRight,
child: Container(
height: 40,
padding: const EdgeInsets.only(bottom: 16),
child: OutlinedButton(
onPressed: () {},
child: Text('mybutton'),
),
)
我试图在我的堆栈中显示一个按钮,但它没有得到正确的位置。该按钮是回复按钮。我添加了一只脚,现在您可以检查它,我想要的是在底部 window 的右侧显示它,底部和按钮之间有一点间距。 希望任何人都可以提供帮助。如果您需要更多信息,请发表评论。
@override
Widget build(BuildContext context) {
var size = MediaQuery.of(context).size;
try {
return Scaffold(
body: StreamBuilder(
stream: mystreamofallvideos,
builder: (context, snapshot) {
if (snapshot.hasData &&
snapshot.connectionState != ConnectionState.waiting) {
return PageView.builder(
itemCount: snapshot.data.docs.length,
controller:
PageController(initialPage: 0, viewportFraction: 1),
scrollDirection: Axis.vertical,
itemBuilder: (context, index) {
DocumentSnapshot videos = snapshot.data.docs[index];
return Stack(children: [
Videoplayeritem(widget.videoid),
Column(children: [
Align(
alignment: Alignment.bottomLeft,
child: Container(
height: 100,
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: [
IconButton(
icon: Icon(
Icons.close,
color: Colors.white,
size: 35,
),
onPressed: () {
Navigator.of(context).pop();
}),
SizedBox(
width: 190,
),
],
),
),
),
Container(
color: Colors.red,
width: 210,
height: 94,
//color: Colors.blue.withOpacity(0.5),
child: InkWell(
onTap: () => sharevideo(
widget.videoid, videos.data()['id']),
child: Icon(Icons.reply,
size: 55, color: Colors.white),
),
),
]),
//starssonthe right
]);
});
} else {
return Center(child: CircularProgressIndicator());
}
}),
);
} catch (e) {
e.toString();
}
}
}
这是它的样子
enter image description here
您可以使用 Positioned
或 Align
小部件包装您的容器
喜欢:
Positioned(
top: 0.0,
left: 0.0,
child: Icon(Icons.message,
size: 128.0, color: Colors.greenAccent[400]), //Icon
),
对齐并在底部添加填充:
Align(
alignment: Alignment.bottomRight,
child: Container(
height: 40,
padding: const EdgeInsets.only(bottom: 16),
child: OutlinedButton(
onPressed: () {},
child: Text('mybutton'),
),
)