Nggawe Popover karo Arrow ing Flutter

Kanggo nggawe Flutter popup karo panah pointing menyang unsur tartamtu, sampeyan bisa nggunakake Popover widget saka popover paket. Mangkene carane sampeyan bisa nindakake:

Tambah popover paket menyang file sampeyan pubspec.yaml:

dependencies:
  flutter:  
    sdk: flutter  
  popover: ^0.5.0  

Impor paket sing dibutuhake:

import 'package:flutter/material.dart';  
import 'package:popover/popover.dart';  

Gunakake Popover widget:

void main() {  
  runApp(MyApp());  
}  
  
class MyApp extends StatelessWidget {  
  @override  
  Widget build(BuildContext context) {  
    return MaterialApp(  
      home: MyHomePage(),  
   );  
  }  
}  
  
class MyHomePage extends StatelessWidget {  
  @override  
  Widget build(BuildContext context) {  
    return Scaffold(  
      appBar: AppBar(  
        title: Text('Popover Example'),  
     ),  
      body: Center(  
        child: Popover(  
          child: ElevatedButton(  
            onPressed:() {},  
            child: Text('Open Popup'),  
         ),  
          bodyBuilder:(BuildContext context) {  
            return Container(  
              padding: EdgeInsets.all(10),  
              child: Column(  
                mainAxisSize: MainAxisSize.min,  
                children: [  
                  Text('This is a popover with an arrow.'),  
                  SizedBox(height: 10),  
                  Icon(Icons.arrow_drop_up, color: Colors.grey),  
                ],  
             ),  
           );  
          },  
       ),  
     ),  
   );  
  }  
}  

Ing conto iki, Popover widget digunakake kanggo nggawe popover kanthi panah nuding saka tombol menyang konten. Properti kasebut child minangka unsur sing micu popover, lan bodyBuilder properti kasebut minangka callback sing ngasilake isi popover.

Elinga kanggo ngatur isi, tampilan, lan prilaku popover miturut syarat sampeyan. Conto iki nduduhake panggunaan paket popover kanggo nggawe popovers karo panah ing Flutter.