我如何在 FLUTTER 的 onTap 事件中更改 Container 的颜色和文本
How do i change the color and text of Container at onTap event in FLUTTER
我有两个连续的容器,我想做的是当我点击第一个容器时它会改变颜色,第二个容器也会改变颜色
即-当我点击第一个容器时,它看起来像被选中,而另一个被取消选择,与第二个容器相同。
有办法吗?
GestureDetector(
onTap: () {
print('its getting pressed');
},
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: Container(
height: screenHeight * 0.057,
width: double.infinity,
color: greyf1,
child: Center(
child: Text(
'Borrower',
style: hintTextTextStyle,
),
),
),
),
SizedBox(
width: 10,
),
Expanded(
child: Container(
height: screenHeight * 0.057,
width: double.infinity,
color: greyf1,
child: Padding(
padding: const EdgeInsets.only(left: 15),
child: Center(
child: Text(
'Lender',
style: hintTextTextStyle,
),
),
),
),
),
],
),
),
您可以尝试以下方法。这将使用 selected
属性 来决定哪个容器应该是蓝色的。
没有测试代码
class _TestState extends State<Test> {
String selected = "first";
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
GestureDetector(
onTap: () {
setState(() {
selected = 'first';
});
},
child: Container(
height: 200,
width: 200,
color: selected == 'first' ? Colors.blue : Colors.transparent,
child: Text("First"),
),
),
GestureDetector(
onTap: () {
setState(() {
selected = 'second';
});
},
child: Container(
height: 200,
width: 200,
color: selected == 'second' ? Colors.blue : Colors.transparent,
child: Text("Second"),
),
),
],
);
}
}
我有两个连续的容器,我想做的是当我点击第一个容器时它会改变颜色,第二个容器也会改变颜色
即-当我点击第一个容器时,它看起来像被选中,而另一个被取消选择,与第二个容器相同。
有办法吗?
GestureDetector(
onTap: () {
print('its getting pressed');
},
child: Row(
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
Expanded(
child: Container(
height: screenHeight * 0.057,
width: double.infinity,
color: greyf1,
child: Center(
child: Text(
'Borrower',
style: hintTextTextStyle,
),
),
),
),
SizedBox(
width: 10,
),
Expanded(
child: Container(
height: screenHeight * 0.057,
width: double.infinity,
color: greyf1,
child: Padding(
padding: const EdgeInsets.only(left: 15),
child: Center(
child: Text(
'Lender',
style: hintTextTextStyle,
),
),
),
),
),
],
),
),
您可以尝试以下方法。这将使用 selected
属性 来决定哪个容器应该是蓝色的。
没有测试代码
class _TestState extends State<Test> {
String selected = "first";
@override
Widget build(BuildContext context) {
return Column(
children: <Widget>[
GestureDetector(
onTap: () {
setState(() {
selected = 'first';
});
},
child: Container(
height: 200,
width: 200,
color: selected == 'first' ? Colors.blue : Colors.transparent,
child: Text("First"),
),
),
GestureDetector(
onTap: () {
setState(() {
selected = 'second';
});
},
child: Container(
height: 200,
width: 200,
color: selected == 'second' ? Colors.blue : Colors.transparent,
child: Text("Second"),
),
),
],
);
}
}