我正在尝试创建一个具有 3 个容器和一个按钮的定位小部件。选择一个容器1并单击按钮时，它应该为Container1运行命令，而选择Container2，它应该为Container2运行命令，等等。 我只能用第一个运行命令。容器。请我需要帮助谢谢
Positioned(
left: 0,
right: 0,
bottom: 0,
child: AnimatedSize(
vsync: this,
duration: Duration(milliseconds: 150),
child: Container(
decoration: BoxDecoration(color: Colors.white, borderRadius: BorderRadius.only(topLeft: Radius.circular(15), topRight: Radius.circular(15)),
boxShadow: [
BoxShadow(
color: Colors.black26,
blurRadius: 15.0,
spreadRadius: 0.5,
offset: Offset(
0.7, 0.7,
)
)
],
),
height: 300,
child: Padding(
padding: EdgeInsets.symmetric(vertical: 18),
child: SingleChildScrollView(
child: Column(
children: [
Container(
color: Colors.blue,
width: double.infinity,
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 2),
child: FlatButton(
onPressed: (){},
child: Row(
children: [
Image.asset('c', height: 70, width: 70,),
SizedBox(width: 16,),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(‘c’, style: TextStyle(fontSize: 18, fontFamily: ‘b’),),
Text(
(“”, style: TextStyle(fontSize: 16.0, color: Colors.grey,),
),
],
),
Expanded(child: Container()),
Text(“”, style: TextStyle(fontFamily: “c”,),
), ],
),
),
),
),
Container(
color: Colors.blue,
width: double.infinity,
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Row(
children: [
Image.asset(‘x’, height: 70, width: 70,),
SizedBox(width: 16,),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(‘x’, style: TextStyle(fontSize: 18, fontFamily: ‘x’),),
Text(datafromFirebase,TextStyle(fontSize: 16.0, color: Colors.grey,),
),
],
),
Expanded(child: Container()),
Text(“”, style: TextStyle(fontFamily: “x”,),
), ],
),
),
),
Container(
color: Colors.blue,
width: double.infinity,
child: Padding(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Row(
children: [
Image.asset(‘z’, height: 70, width: 70,),
SizedBox(width: 16,),
Column(
crossAxisAlignment: CrossAxisAlignment.start,
children: [
Text(‘z’, style: TextStyle(fontSize: 18, fontFamily: ‘z’),),
Text(“Hello World“style: TextStyle(fontSize: 16.0, color: Colors.grey,),
),
],
),
Expanded(child: Container()),
Text(“Hello World”, style: TextStyle(fontFamily: “z”,),
), ],
),
),
),
SizedBox(height: 22,),
Padding(
padding: EdgeInsets.symmetric(horizontal: 16),
child: Row(
children: [
Icon(),
SizedBox(width: 16,),
Text(‘blue’),
SizedBox(width: 5,),
Icon(),
],
),
),
SizedBox(height: 22,),
Padding(padding: EdgeInsets.symmetric(horizontal: 16),
child: ElevatedButton(
onPressed: (){
displayToastMessage(“x”, context);
setState(() {
state = “x”;
});
DisplayNewScreen();
},
style: ElevatedButton.styleFrom(
primary: Colors.red
shape: RoundedRectangleBorder(
borderRadius: BorderRadius.circular(25),
),
),
child: Container(
height: 50,
child: Center(
child: Text(“x”,
style: TextStyle(fontSize: 18, ),
),
),
),),
],
),
),
),
),
),
),