Flutterintegration_test：無法向tester.enterText()方法輸入整數、雙精度值？-有解無憂

我正在為我的flutter-web應用程式開發integration_test ....我遇到的tester.enterText()方法不輸入整數，雙精度值，因為它的資料型別僅限于字串型別。如果我TextField只接受數字和keyboardType屬性設定為keyboardType: TextInputType.number怎么辦？

嘗試將其型別轉換為 String 型別，但結果TextField不會接受任何非字串值。下面的測驗用例失敗，但有以下例外：期望值型別String，但得到型別之一int

可重復的樣品：

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

void main() {
  runApp(const MyApp());
}

class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: const MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key, required this.title}) : super(key: key);

  final String title;

  @override
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  final _scaleTextController = TextEditingController();
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Container(
        alignment: Alignment.center,
        child: TextFormField(
          controller: _scaleTextController,
          inputFormatters: [
            FilteringTextInputFormatter.allow(
              RegExp(r'^\d*\.?\d{0,6}'),
            ),
          ],
          keyboardType: TextInputType.number,
          autofocus: true,
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: () {},
        tooltip: 'Increment',
        child: const Icon(Icons.add),
      ),
    );
  }
}

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:integration_test/integration_test.dart';
import 'package:hello_world/main.dart' as app;

void main() async {
  group('Complete E2E Test', () {
    IntegrationTestWidgetsFlutterBinding.ensureInitialized();

    setUp(() {
      app.main();
    });

    testWidgets('Hello World test', (WidgetTester tester) async {
      final inputField = find.byType(TextField).first;
      await tester.tap(inputField);
      await tester.enterText(inputField, 2 as String);
    });
  });
}

uj5u.com熱心網友回復：

只需使用toString()而不是強制轉換

如

假設你有一個 int 變數

int x = 2;

要將其更改為字串，只需使用

x.toString();

轉載請註明出處，本文鏈接：https://www.uj5u.com/caozuo/426595.html

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