问题描述
我正在尝试使用 Flutter OTP https://pub.dev/packages/flutter_otp 发送 otp。而且我不期待使用 Firebase Auth 发送 OTP。当用户通过我的应用程序传递电话号码时，我想发送一个 OTP 并验证它。但是我遇到了这个 Flutter_otp，它不需要 firebase，它的依赖项是 https://pub.dev/packages/sms 和 Flutter only。这是我想测试是否发送 OTP 的代码片段。
import 'package:Flutter/material.dart';
import 'package:Flutter_otp/Flutter_otp.dart';
class MyAppextends StatefulWidget {
@override
_MyAppState createState() => _MyAppState();
}
class _MyAppState extends State<MyApp> {
const MyPailaApp({Key key}) : super(key: key);
TextEditingController _controller = new TextEditingController();
FlutterOtp otpsender = new FlutterOtp();
@override
void dispose() {
super.dispose();
_controller.dispose();
}
@override
Widget build(BuildContext context) {
return Container(
padding: EdgeInsets.symmetric(horizontal: 16.0),child: TextField(
cursorColor: Colors.black,controller: _controller,decoration: Inputdecoration(
hintText: 'Tap to type',suffixIcon: IconButton(
icon: Icon(Icons.send,color: Colors.black,),onpressed: (){
setState(() {
otpsender.sendOtp(_controller.text,'OTP is : pass the generated otp here ',100000,999999,'+977');
_controller.clear();
});
},);
}
}
但是在单击文本字段中的图标后，我收到以下错误并且未发送 OTP。
Running with unsound null safety
For more information see https://dart.dev/null-safety/unsound-null-safety
Debug service listening on ws://127.0.0.1:57564/Qnt0yPHy_eA=/ws
Error: MissingPluginException(No implementation found for method sendSMS on channel plugins.babariviere.com/sendSMS)
at Object.throw_ [as throw] (http://localhost:58819/dart_sdk.js:5348:11)
at MethodChannel._invokeMethod (http://localhost:58819/packages/Flutter/src/services/system_channels.dart.lib.js:962:21)
at _invokeMethod.next (<anonymous>)
at http://localhost:58819/dart_sdk.js:39230:33
at _RootZone.runUnary (http://localhost:58819/dart_sdk.js:39087:58)
at _FutureListener.thenAwait.handleValue (http://localhost:58819/dart_sdk.js:34073:29)
at handleValueCallback (http://localhost:58819/dart_sdk.js:34633:49)
at Function._propagatetoListeners (http://localhost:58819/dart_sdk.js:34671:17)
at _Future.new.[_completeWithValue] (http://localhost:58819/dart_sdk.js:34513:23)
at async._AsyncCallbackEntry.new.callback (http://localhost:58819/dart_sdk.js:34536:35)
at Object._microtaskLoop (http://localhost:58819/dart_sdk.js:39374:13)
at _startMicrotaskLoop (http://localhost:58819/dart_sdk.js:39380:13)
at http://localhost:58819/dart_sdk.js:34887:9
======== Exception caught by services library ======================================================
The following MissingPluginException was thrown while activating platform stream on channel plugins.babariviere.com/statusSMS:
MissingPluginException(No implementation found for method listen on channel plugins.babariviere.com/statusSMS)
When the exception was thrown,this was the stack:
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 236:49 throw_
packages/Flutter/src/services/platform_channel.dart 156:7 _invokeMethod
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 45:50 <fn>
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/zone.dart 1613:54 runUnary
C:/b/s/w/ir/cache/builder/src/out/host_debug/dart-sdk/lib/async/future_impl.dart 155:18 handleValue
...
====================================================================================================
请帮我解决这个问题。
解决方法
网络不支持您使用的软件包。
同样的方法只适用于 Android 和 iOS。
错误消息 public String updateAndReturn(int field1,int field2) {
String query = "UPDATE my_table SET field1 = ? WHERE field2 = ? LIMIT 1";
Connection connection = DbConnectionManager.getInstance().getConnection();
PreparedStatement preparedStatement = connection.prepareStatement(query);
preparedStatement.setInt(1,field1);
preparedStatement.setInt(2,field2);
executeUpdate(preparedStatement);
return field3; // How?
}
试图传达这一点。
如我们所见，pub.dev 上的所有插件均显示其支持的平台，您要使用的插件均不受 Web 支持，仅适用于 iOS 和 Android
