[英]Flutter gesturedetector not working in stack widget
我正在使用stack
小部件在圖像上顯示后退箭頭按鈕。 它的顯示,但問題是它不可點擊意味着 Gesturedector 不在 Stack 上工作。
我的代碼
Stack(
children: <Widget>[
Container(
height: height * 0.4,
decoration: BoxDecoration(
image: DecorationImage(
image: AssetImage(
'assets/images/place2.jpg',
),
fit: BoxFit.fill,
),
),
),
GestureDetector(
behavior: HitTestBehavior.translucent,
onTap: () => print("first container"),
child: Align(
alignment: Alignment.topLeft,
child: Container(
margin: EdgeInsets.only(left: width * 0.03),
padding: EdgeInsets.only(top: statusBarHeight * 2),
child: Icon(
Icons.arrow_back_ios,
size: 25,
color: Colors.white,
),
),
),
),
SingleChildScrollView(
child: Padding(
padding: EdgeInsets.only(top: height * 0.3),
child: SingleChildScrollView(
child: ClipRRect(
borderRadius: BorderRadius.only(
topRight: Radius.circular(30),
topLeft: Radius.circular(30)),
child: Container(
decoration: BoxDecoration(
color: Colors.white,
),
child: Column(
mainAxisSize: MainAxisSize.min,
children: <Widget>[
SizedBox(
height: height * 0.05,
),
Container(
width: width,
margin: EdgeInsets.only(left: width * 0.03),
child: Text(
'NYC Food Festival',
textAlign: TextAlign.left,
style: TextStyle(fontSize: 30),
),
),
SizedBox(
height: height * 0.02,
),
Container(
margin: EdgeInsets.only(left: width * 0.03),
child: Row(
children: <Widget>[
Icon(
Icons.calendar_today,
size: 20,
color: Color(0xff808080),
),
SizedBox(width: width * 0.02), // give it width
Column(
children: <Widget>[
Text(
'Sat, May 25, 2020',
style: TextStyle(
color: Color(0xff000000),
fontWeight: FontWeight.bold,
fontSize: 15),
),
],
)
],
),
),
SizedBox(
height: height * 0.02,
),
Container(
margin: EdgeInsets.only(left: width * 0.03),
child: Row(
children: <Widget>[
Icon(
Icons.attach_money,
size: 20,
color: Color(0xff808080),
),
SizedBox(width: width * 0.02), // give it width
Column(
children: <Widget>[
Text(
'25,000 PKR',
style: TextStyle(
color: Color(0xff000000),
fontWeight: FontWeight.bold,
fontSize: 15),
),
],
)
],
),
),
SizedBox(
height: height * 0.02,
),
SizedBox(
height: height * 0.02,
),
Container(
width: width,
margin: EdgeInsets.only(left: width * 0.03),
child: Text(
'Snaps',
textAlign: TextAlign.left,
style: TextStyle(fontSize: 25),
),
),
SizedBox(
height: height * 0.02,
),
Container(
child: Column(
children: <Widget>[
CarouselSlider(
options: CarouselOptions(
autoPlay: true,
aspectRatio: 2.0,
enlargeCenterPage: true,
),
items: imageSliders,
),
],
)),
SizedBox(
height: height * 0.02,
),
Container(
width: width,
margin: EdgeInsets.only(left: width * 0.03),
child: Text(
'About',
textAlign: TextAlign.left,
style: TextStyle(fontSize: 25),
),
),
SizedBox(
height: height * 0.02,
),
Container(
padding: EdgeInsets.only(
right: width * 0.03, left: width * 0.03),
child: DescriptionTextWidget(
text:
"Flutter is Google’s mobile UI framework for crafting high-quality native interfaces on iOS and Android in record time. Flutter works with existing code, is used by developers and organizations around the world, and is free and open source.")
),
SizedBox(
height: height * 0.02,
),
Container(
width: width,
margin: EdgeInsets.only(left: width * 0.03),
child: Text(
'Included',
textAlign: TextAlign.left,
style: TextStyle(fontSize: 25),
),
),
SizedBox(
height: height * 0.02,
),
Included(),
SizedBox(
height: height * 0.01,
),
Included(),
SizedBox(
height: height * 0.01,
),
Included(),
SizedBox(
height: height * 0.01,
),
],
),
),
),
),
),
),
Positioned(
bottom: 0,
left: 0,
right: 0,
child: Container(
height: 100,
decoration: BoxDecoration(
// color: Color.fromARGB(110, 255, 255, 255),
borderRadius: BorderRadius.only(
topLeft: Radius.circular(20),
topRight: Radius.circular(20),
),
gradient: LinearGradient(
colors: [
Color.fromARGB(30, 255, 255, 255),
Color.fromARGB(255, 255, 255, 255),
],
begin: Alignment.topCenter,
end: Alignment.bottomCenter,
),
),
child: Center(
child: InkWell(
child: Container(
padding: EdgeInsets.symmetric(
horizontal: 80,
vertical: 20,
),
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(30),
color: Colors.blueAccent,
),
child: Text(
"BOOK NOW",
style: TextStyle(
fontWeight: FontWeight.bold,
fontSize: 20,
color: Colors.white),
),
),
onTap: () {
return print("Tap");
},
),
),
),
),
],
)
我需要在導航時將其用作后退按鈕,但它不起作用然后進行測試我只是打印一個值 onTap 但它也不起作用我也嘗試添加behaviour
。
您可以嘗試將 GestureDectector 放在 SingleChildScrollView 之后的堆棧中。
我猜 SingleChildScrollView 位於 GestureDetector 上方,因為它是一個堆棧。
SingleChildScrollView(),
GestureDetector(),
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