我建议将卡的文本的String
存储在变量中,然后执行的操作是调用所创建函数的卡的onTap
,然后将存储的变量传递给文本的字符串是showMyDialog(textVariable)
,它将调用该函数以显示对话框,然后使用textVariable
显示文本。
我附上了一个更准确的示例,以实现您想要的。您可以根据需要调整用户界面
import 'package:flutter/material.dart';
void main() => runApp(MyApp());
class MyApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
theme: ThemeData(
primarySwatch: Colors.blue,
),
home: HomePage(),
);
}
}
class HomePage extends StatefulWidget {
@override
_HomePageState createState() => _HomePageState();
}
class _HomePageState extends State<HomePage> {
String displayText = "Same Text Everywhere";
@override
Widget build(BuildContext context) {
return Scaffold(
body: Center(
child: GestureDetector(
onTap: ()=> showMyDialog(context,displayText),
child: Card(
child: Padding(
padding: const EdgeInsets.all(10.0),
child: Text(displayText),
),
),
)
),
);
}
Future<void> showMyDialog(BuildContext context, String displayText) {
return showDialog<void>(
context: context,
builder: (BuildContext context) {
return AlertDialog(
content: Text(displayText),
);
},
);
}
}