卡重叠颤动中的凸起按钮 [英] Card overlapping raised button in flutter
问题描述
朋友，我正在考虑进行这种类型的查看，但是我无法像给定图像那样设置按钮重叠。我正在使用包含窗口小部件的堆栈小部件，其中包含文本字段和给定图像的按钮，请检查并帮助我也尝试过使用中心小部件，但是视图按需进来，我也使用了定位的小部件，但是它的获取按钮在屏幕的底部像这样，但我需要上面的图片
friends, I am thinking to make this type of view but I can't able to set the button overlapping like the given image I am using stack widget which is containing the text fields and the buttons as given image please check and help me out I also tried to use the center widgets as well but the view is coming as required in it also i had used the positioned widget but its getting button bottom of the screen like this but i need as the above image
MyLayoutDesign
MyLayoutDesign
class MyApp extends StatefulWidget {
@override
State<StatefulWidget> createState() {
MyAppState myAppState() => new MyAppState();
return myAppState();
}
}
class MyAppState extends State<MyApp> {
@override
Widget build(BuildContext context) {
return new MaterialApp(home: new Scaffold(body: new Builder(
builder: (BuildContext context) {
return new Stack(
children: <Widget>[
new Image.asset(
'assets/images/bg.png',
fit: BoxFit.cover,
),
new Center(
child: new Container(
child: new Card(
color: Colors.white,
elevation: 6.0,
margin: EdgeInsets.only(right: 15.0, left: 15.0),
child: new Wrap(
children: <Widget>[
Center(
child: new Container(
margin: EdgeInsets.only(top: 20.0),
child: new Text(
'Login',
style: TextStyle(
fontSize: 25.0, color: secondarycolor),
),
),
),
new ListTile(
leading: const Icon(Icons.person),
title: new TextFormField(
decoration: new InputDecoration(
hintText: 'Please enter email',
labelText: 'Enter Your Email address',
),
keyboardType: TextInputType.emailAddress,
),
),
new ListTile(
leading: const Icon(Icons.lock),
title: new TextFormField(
decoration: new InputDecoration(
hintText: 'Please enter password',
labelText: 'Enter Your Password',
),
keyboardType: TextInputType.emailAddress,
obscureText: true,
),
),
Container(
margin: EdgeInsets.only(top: 10.0, bottom: 15.0),
child: Center(
child: Text(
"FORGOT PASSWORD",
style: TextStyle(
decoration: TextDecoration.underline,
color: Colors.black,
fontSize: 16.0),
),
),
),
Center(
child: Container(
margin: EdgeInsets.only(bottom: 40.0, top: 10.0),
child: Text.rich(
TextSpan(
children: const <TextSpan>[
TextSpan(
text: 'NEW USER ? ',
style: TextStyle(
fontSize: 16.0, color: Colors.black)),
TextSpan(
text: 'REGISTER',
style: TextStyle(
fontSize: 16.0,
decoration: TextDecoration.underline,
color: Colors.black)),
],
),
),
),
),
],
),
),
),
),
new RaisedButton(
onPressed: () {
print('Login Pressed');
},
color: primarycolor,
shape: new RoundedRectangleBorder(
borderRadius: new BorderRadius.circular(30.0)),
child: new Text('Login',
style: new TextStyle(
color: Colors.white,
fontSize: 16.0,
fontWeight: FontWeight.bold)),
),
],
);
},
)));
}
}
推荐答案
this只是达到预期效果的多种方式之一。
在这种情况下，我假设您知道背景的高度。
同样，有很多方法可以实现您想要的。您的代码没有错，您只需要了解Flutter中事物的工作原理
this is just one the many ways you can achieve the expected result. In this case, i assume you know the height of the background. Again, there are many ways to achieve what you want. There is nothing wrong with your code, you just have to get an understanding of how 'things' work in Flutter
Widget demo = Stack(
children: <Widget>[
//First thing in the stack is the background
//For the backgroud i create a column
Column(
children: <Widget>[
//first element in the column is the white background (the Image.asset in your case)
DecoratedBox(
decoration: BoxDecoration(
borderRadius: BorderRadius.circular(20.0),
color: Colors.white
),
child: Container(
width: 300.0,
height: 400.0,
)
),
//second item in the column is a transparent space of 20
Container(
height: 20.0
)
],
),
//for the button i create another column
Column(
children:<Widget>[
//first element in column is the transparent offset
Container(
height: 380.0
),
Center(
child: FlatButton(
color: Colors.red,
child: Text("Press Me"),
onPressed: () {},
),
)
]
)
],
);
这篇关于卡重叠颤动中的凸起按钮的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
