早上好。我制作了this screen，它在高分辨率下就像一个魅力。问题是，我想支持较低的分辨率，例如Nexus 4（768x1280）。
因此，当我在仿真器（Nexus 4大小）上运行此命令并触摸输入字段时，键盘要么：阻止输入，要么将底部的两个按钮移动到另一个按钮上，然后使其重叠。
因此，要解决该问题，我将整个布局都包装在ListView（）上，但是现在包装在Row（）上的底部按钮不再停留在底部。
这是我的没有ListView的代码，可以在高分辨率下工作，但在低分辨率下工作：
return Form(
Stack(
Center(
Column(
...
),
),
Align(
alignment: Alignment.bottomCenter,
child: Row(
...
),
),
),
);
This是带有resizeToAvoidBottomPadding的外观：false this就是将值设置为true的样子
谢谢大家。
答案 0 :(得分：1)
您尝试使用SingleChildScrollView吗？
这是一个小部件，用于使页面能够调整高度并滚动，对于listview而言，listview不是它的listview，您应该在得到未知数据量时添加listview，
我们通常不使用它来调整视图。
好的，所以我在这里编辑了代码，键盘弹出后，视图可以正常显示，并且我可以正常地单击按钮。
Widget formWidget(){
return new Scaffold(
// appBar: AppBar(
// // Here we take the value from the MyHomePage object that was created by
// // the App.build method, and use it to set our appbar title.
// title: Text(widget.title),
// ),
body:Column(
children: <Widget> [
Expanded(
child:SingleChildScrollView(
child: Form(
child:
// Stack(
// children: <Widget>[
// Center(
// child: SingleChildScrollView(
// child:
Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
mainAxisSize: MainAxisSize.max,
children: [
Padding(
padding: (MediaQuery.of(context).size.height) > 600
? const EdgeInsets.only(top: 0.0)
: const EdgeInsets.only(top: 30.0),
child: Image(
image: AssetImage('assets/favIcon.png'),
width: 88.0,
height: 88.0,
),
),
Padding(
padding: const EdgeInsets.fromLTRB(0, 28.0, 0, 12.0),
child: Text(
'Delegados',
style: TextStyle(
fontFamily: 'Archia',
fontSize: 32.0,
),
),
),
Text(
'Introduce tus datos de acceso aquí.',
style: TextStyle(
color: Color(0xff83868F),
fontFamily: 'Brutal',
fontSize: 14.0,
),
),
Padding(
padding:
const EdgeInsets.fromLTRB(16.0, 26.0, 16.0, 12.0),
child: TextFormField(
decoration: InputDecoration(
labelText: 'Correo',
filled: true,
fillColor: Color(0xffF0F1F5),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
),
style: TextStyle(
fontFamily: 'Brutal',
color: Color(0xff1A1B1F),
),
controller: TextEditingController() ,
textInputAction: TextInputAction.next,
),
),
Padding(
padding: const EdgeInsets.fromLTRB(16.0, 0, 16.0, 12.0),
child: TextFormField(
keyboardType: TextInputType.emailAddress,
decoration: InputDecoration(
labelText: 'Contraseña',
filled: true,
fillColor: Color(0xffF0F1F5),
suffixIcon: Icon(Icons.remove_red_eye),
border: OutlineInputBorder(
borderRadius: BorderRadius.circular(8.0),
borderSide: BorderSide(
width: 0,
style: BorderStyle.none,
),
),
),
style: TextStyle(
fontFamily: 'Brutal',
color: Color(0xff1A1B1F),
),
controller: TextEditingController() ,
//focusNode:FocusNode(),
obscureText: true,
),
),
Align(
alignment: Alignment.centerRight,
child: Padding(
padding: const EdgeInsets.fromLTRB(0, 0, 0, 26.0),
child: CupertinoButton(
onPressed: () {},
child: Text(
'Olvidé mi Contraseña',
style: TextStyle(
color: Color(0xff565A66),
fontFamily: 'Brutal',
fontSize: 14.0,
),
),
),
),
),
Padding(
padding: const EdgeInsets.fromLTRB(16.0, 0, 16.0, 0),
child: ButtonTheme(
minWidth: double.infinity,
child: InkWell(
// onTap: state is! LoginLoading
// ? _onLoginButtonPressed
// : null,
child: Container(
height: 48.0,
width: 500.0,
decoration: BoxDecoration(
color: Color(0xff00CC36),
borderRadius: BorderRadius.circular(8.0),
),
child: Align(
alignment: Alignment.center,
child: Container(
child:
// state is LoginLoading
// ? CircularProgressIndicator():
Text(
'INGRESAR AHORA ›',
style: TextStyle(
color: Colors.white,
fontFamily: 'Brutal',
fontSize: 14.0,
),
),
)),
),
),
),
),
],
),
// ),
)
,
// aqui va <<<<<<<<<<<<
// ],
// ),
)
),
Align(
alignment: Alignment.bottomCenter,
child: Row(
mainAxisAlignment: MainAxisAlignment.center,
children: <Widget>[
CupertinoButton(
onPressed: () {},
child: Text(
'¿No tienes cuenta?',
style: TextStyle(
color: Color(0xff83868F),
fontFamily: 'Brutal',
fontSize: 14.0,
),
),
),
InkWell(
onTap: null,
child: Container(
height: 32.0,
width: 112.0,
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(6.0),
border: Border.all(
color: Color(0xffD7D9E0),
width: 1.0,
),
),
child: Align(
alignment: Alignment.center,
child: Text(
'CONTACTANOS',
style: TextStyle(
color: Color(0xff565A66),
fontFamily: 'Brutal',
fontSize: 11.0),
),
),
),
),
],
),
),
]
)
,
// )
);
}
答案 1 :(得分：0)
您可以在return roundedNumber % 2 === 0;中尝试此操作。
Scaffold答案 2 :(得分：0)
我通过这段代码将两个元素定位在屏幕的中心和底部。
body: Column(
children: [
Expanded(
child: Center(
child: Column(
mainAxisAlignment: MainAxisAlignment.center,
crossAxisAlignment: CrossAxisAlignment.center,
children: [
SizedBox(
height: 80,
width: 80,
child:
Image(image: AssetImage("assets/images/logo.png"))),
SizedBox(height: 10),
Text(
"Tings App",
style: TextStyle(fontSize: 36),
),
SizedBox(height: 10),
TextFormField(
controller: _emailController,
decoration: InputDecoration(
border: OutlineInputBorder(),
isDense: true,
labelText: 'Email/phone'),
validator: (value) {
if (value.isEmpty) {
return 'Please enter a valid email';
}
return null;
},
),
],
),
),
),
Align(
alignment: Alignment.bottomCenter,
child: Container(
padding: EdgeInsets.all(20),
child: Column(
mainAxisAlignment: MainAxisAlignment.end,
children: <Widget>[
_isLoading
? CircularProgressIndicator()
: SizedBox(
width: MediaQuery.of(context).size.width * 0.7,
height: 60.0,
child: ElevatedButton(
style: ButtonStyle(
shape: MaterialStateProperty.all<
RoundedRectangleBorder>(
RoundedRectangleBorder(
borderRadius: BorderRadius.circular(100.0),
),
),
),
child: Text(
"SignIn",
style: TextStyle(
color: Colors.white,
fontWeight: FontWeight.w800,
fontSize: 18),
),
onPressed: () {
_login(context);
},
),
),
SizedBox(height: 16),
Row(
mainAxisAlignment: MainAxisAlignment.center,
children: [
Text(
"Don't have account?",
style: TextStyle(fontSize: 16),
),
SizedBox(width: 6),
TextButton(
onPressed: () {
Navigator.push(
context, SlideRightRoute(page: Signup()));
},
child: Text("SignUp"),
),
],
)
],
),
),
)
],
),