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Flutter 使用Navigator.push(MaterialPageRoute)而不是AlertDialog_Flutter_Dart_Flutter Layout_Flutter Appbar - Fatal编程技术网

Flutter 使用Navigator.push(MaterialPageRoute)而不是AlertDialog

Flutter 使用Navigator.push(MaterialPageRoute)而不是AlertDialog,flutter,dart,flutter-layout,flutter-appbar,Flutter,Dart,Flutter Layout,Flutter Appbar,我想使用Navigator.push(MaterialPageRoute)而不是AlertDialog,因为现在我认为我的用户最好有一个完整的页面来发布内容,而不是一个对话框,我该如何编辑代码来做到这一点?提前谢谢 appBar: AppBar( centerTitle: true, title: Text('hehe', style: TextStyle(fontWeight: FontWeight.bold, fontSize: 25.0),), actio

我想使用Navigator.push(MaterialPageRoute)而不是AlertDialog,因为现在我认为我的用户最好有一个完整的页面来发布内容,而不是一个对话框,我该如何编辑代码来做到这一点?提前谢谢

 appBar: AppBar(
    centerTitle: true,
    title: Text('hehe',
    style: TextStyle(fontWeight: FontWeight.bold, fontSize: 25.0),),
    actions: <Widget>[
      Padding(
        padding: const EdgeInsets.only(right: 10.0),
        child: IconButton(icon: Icon(Icons.comment),
            onPressed: () {
          showDialog(context: context,
          builder: (BuildContext context){
            return AlertDialog(
              shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(10.0)),
              content: Form(key: formKey,
              child: Column(
                mainAxisSize: MainAxisSize.min,
                children: <Widget>[
                  Padding(
                    padding: EdgeInsets.all(8.0),
                    child: TextFormField(
                      initialValue: '',
                      onSaved: (val) => board.subject = val,
                      validator: (val) => val == "" ? val: null,
                    ),
                  ),
                  Padding(
                    padding: EdgeInsets.all(8.0),
                    child: RaisedButton(
                      color: Colors.indigo,
                      child: Text(
                          'Post',
                      style: TextStyle(color: Colors.white),),
                      onPressed: () {
                        handleSubmit();
                        Navigator.of(context).pop();
                      },
                    ),
                  )
                ],
              ),
              ),
            );
          },
          );
            }
            ),
      ),
    ],
  ),
appBar:appBar(
标题:对,
标题:文本(‘呵呵’,
样式:TextStyle(fontWeight:fontWeight.bold,fontSize:25.0),
行动:[
填充物(
填充:仅限常量边集(右:10.0),
子项:图标按钮(图标:图标(Icons.comment)),
已按下:(){
showDialog(上下文:上下文,
生成器:(BuildContext上下文){
返回警报对话框(
形状:RoundedRectangleBorder(borderRadius:borderRadius.circular(10.0)),
内容:表格(键:formKey,
子:列(
mainAxisSize:mainAxisSize.min,
儿童:[
填充物(
填充:边缘设置。全部(8.0),
子项:TextFormField(
初始值:“”,
onSaved:(val)=>board.subject=val,
验证程序:(val)=>val==“”?val:null,
),
),
填充物(
填充:边缘设置。全部(8.0),
孩子:升起按钮(
颜色:颜色,靛蓝,
子:文本(
"岗位",,
样式:TextStyle(颜色:Colors.white),),
已按下:(){
handleSubmit();
Navigator.of(context.pop();
},
),
)
],
),
),
);
},
);
}
),
),
],
),

创建一个
StatefulWidget
子类say
MyForm

class MyForm extends StatefulWidget {
  @override
  _MyFormState createState() => _MyFormState();
}

class _MyFormState extends State<MyForm> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("My form")),
      body: Form(
        key: formKey,
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: <Widget>[
            Padding(
              padding: EdgeInsets.all(8.0),
              child: TextFormField(
                initialValue: '',
                onSaved: (val) => board.subject = val,
                validator: (val) => val == "" ? val : null,
              ),
            ),
            Padding(
              padding: EdgeInsets.all(8.0),
              child: RaisedButton(
                color: Colors.indigo,
                child: Text(
                  'Post',
                  style: TextStyle(color: Colors.white),
                ),
                onPressed: () {
                  handleSubmit();
                  Navigator.of(context).pop();
                },
              ),
            )
          ],
        ),
      ),
    );
  }
}

因此,当单击按钮时,您将被导航到当前表单的新页面

创建一个
StatefulWidget
子类say
MyForm

class MyForm extends StatefulWidget {
  @override
  _MyFormState createState() => _MyFormState();
}

class _MyFormState extends State<MyForm> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(title: Text("My form")),
      body: Form(
        key: formKey,
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: <Widget>[
            Padding(
              padding: EdgeInsets.all(8.0),
              child: TextFormField(
                initialValue: '',
                onSaved: (val) => board.subject = val,
                validator: (val) => val == "" ? val : null,
              ),
            ),
            Padding(
              padding: EdgeInsets.all(8.0),
              child: RaisedButton(
                color: Colors.indigo,
                child: Text(
                  'Post',
                  style: TextStyle(color: Colors.white),
                ),
                onPressed: () {
                  handleSubmit();
                  Navigator.of(context).pop();
                },
              ),
            )
          ],
        ),
      ),
    );
  }
}

因此,当单击按钮时,您将被导航到当前表单的新页面

使用AlertDialog的内容创建一个新的StatefulWidget。通过这种方式,您可以使用Navigator移动到该页面。我迷路了,它当前处于有状态widgetyes中,但是如果您想使用Navigator.push,您需要移动到新的有状态Widget。。。这是实现全屏模式的方法。使用AlertDialog的内容创建一个新的StatefulWidget。通过这种方式,您可以使用Navigator移动到该页面。我迷路了,它当前处于有状态widgetyes中,但是如果您想使用Navigator.push,您需要移动到新的有状态Widget。。。这是实现全屏模式的方法。