发布的 apk 上出现“java.lang.RuntimeException：缺少类型参数”错误

Question

我正在使用 flutter 本地通知插件在 flutter 应用程序中设置通知。这是它的代码。

 await AndroidAlarmManager.oneShot(
        Duration(
            seconds: 40,
            minutes: timeinminpicked - timeinminNow - 1,
            days: pickedDate!.difference(DateTime.now()).inDays),
        0,
        addalarm,
        alarmClock: true,
        wakeup: true,
        exact: true,
        allowWhileIdle: true);
    Navigator.of(context).pop();

    await FlutterLocalNotificationsPlugin().zonedSchedule(
        0,
        todoController.text,
        'Tap to turn OFF',
        tz.TZDateTime.now(tz.local).add(Duration(
            seconds: 30,
            minutes: timeinminpicked - timeinminNow - 1,
            days: pickedDate!.difference(DateTime.now()).inDays)),
        const NotificationDetails(
            android: AndroidNotificationDetails('your channel id',
                'your channel name', 'your channel description')),
        androidAllowWhileIdle: true,
        uiLocalNotificationDateInterpretation:
            UILocalNotificationDateInterpretation.absoluteTime);
  }

在 VS code 上以调试模式运行它时，通知准时出现，但是当我在已发布的 apk/ 使用 flutter run --release 上尝试它时，应用程序突然停止了。这就是出现的错误：

ERROR:flutter/lib/ui/ui_dart_state.cc(199)] Unhandled Exception: PlatformException(error, Missing type parameter., null, java.lang.RuntimeException: Missing type parameter.
E/flutter ( 8874):      at c.b.a.O.a.<init>(:3)
E/flutter ( 8874):      at com.dexterous.flutterlocalnotifications.a.<init>(Unknown Source:0)
E/flutter ( 8874):      at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.loadScheduledNotifications(Unknown Source:25)
E/flutter ( 8874):      at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.saveScheduledNotification(Unknown Source:0)
E/flutter ( 8874):      at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.zonedScheduleNotification(:2)
E/flutter ( 8874):      at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.zonedSchedule(:2)
E/flutter ( 8874):      at com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin.onMethodCall(Unknown Source:255)
E/flutter ( 8874):      at d.a.d.a.q.a(Unknown Source:17)
E/flutter ( 8874):      at io.flutter.embedding.engine.l.g.c(Unknown Source:25)
E/flutter ( 8874):      at io.flutter.embedding.engine.FlutterJNI.handlePlatformMessage(Unknown Source:4)      
E/flutter ( 8874):      at android.os.MessageQueue.nativePollOnce(Native Method)
E/flutter ( 8874):      at android.os.MessageQueue.next(MessageQueue.java:336)
E/flutter ( 8874):      at android.os.Looper.loop(Looper.java:182)
E/flutter ( 8874):      at android.app.ActivityThread.main(ActivityThread.java:7782)
E/flutter ( 8874):      at java.lang.reflect.Method.invoke(Native Method)
E/flutter ( 8874):      at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)   
E/flutter ( 8874):      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:981)
E/flutter ( 8874): )
E/flutter ( 8874): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:597)
E/flutter ( 8874): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:158)E/flutter ( 8874): <asynchronous suspension>
E/flutter ( 8874): #2      AndroidFlutterLocalNotificationsPlugin.zonedSchedule (package:flutter_local_notifications/src/platform_flutter_local_notifications.dart:137)
E/flutter ( 8874): <asynchronous suspension>
E/flutter ( 8874): #3      FlutterLocalNotificationsPlugin.zonedSchedule (package:flutter_local_notifications/src/flutter_local_notifications_plugin.dart:300)
E/flutter ( 8874): <asynchronous suspension>
E/flutter ( 8874): #4      _BottomMSheetState.sumbitData (package:reminder/Widgets/BottomMsheet.dart:81)       
E/flutter ( 8874): <asynchronous suspension>
E/flutter ( 8874):
I/flutter ( 8874): [{id: 2021-07-06 12:17:17.609807, title: hahB, date: Tue,6/7/2021, time: 12:18}, {id: 2021-07-06 12:18:26.093092, title: hello, date: Tue,6/7/2021, time: 12:19}]

这是我的 Android 清单：

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.reminder">
    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"/>
    <uses-permission android:name="android.permission.WAKE_LOCK"/>
   <application
        android:label="reminder"
        android:icon="@mipmap/ic_launcher">
        <service
    android:name="dev.fluttercommunity.plus.androidalarmmanager.AlarmService"
     android:permission="android.permission.BIND_JOB_SERVICE"
    android:exported="false"
      />
<receiver
    android:name="dev.fluttercommunity.plus.androidalarmmanager.AlarmBroadcastReceiver"
    android:exported="false"/>
<receiver
    android:name="dev.fluttercommunity.plus.androidalarmmanager.RebootBroadcastReceiver"
    android:enabled="false">
    <intent-filter>
        <action android:name="android.intent.action.BOOT_COMPLETED"></action>
    </intent-filter>
</receiver>
        <activity
            android:name=".MainActivity"
            android:launchMode="singleTop"
            android:theme="@style/LaunchTheme"
            android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
            android:hardwareAccelerated="true"
            android:windowSoftInputMode="adjustResize">
            <!-- Specifies an Android theme to apply to this Activity as soon as
                 the Android process has started. This theme is visible to the user
                 while the Flutter UI initializes. After that, this theme continues
                 to determine the Window background behind the Flutter UI. -->
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />
            <!-- Displays an Android View that continues showing the launch screen
                 Drawable until Flutter paints its first frame, then this splash
                 screen fades out. A splash screen is useful to avoid any visual
                 gap between the end of Android's launch screen and the painting of
                 Flutter's first frame. -->
            <meta-data
              android:name="io.flutter.embedding.android.SplashScreenDrawable"
              android:resource="@drawable/launch_background"
              />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <!-- Don't delete the meta-data below.
             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />
    </application>
</manifest>

请帮助我了解出了什么问题。 PS：我是一个flutter新手，不习惯java。

Answer 1

这是因为压缩，所以要么在 gradle 8+ 上的 R8 上使用 R8/fullmode 禁用压缩

或者您可以编写混淆器规则来防止压缩（推荐）

请参阅示例应用程序以供参考

https://github.com/MaikuB/flutter_local_notifications/blob/master/flutter_local_notifications/example/android/app/proguard-rules.pro

我认为对于新项目，可能需要根据 Kotlin 版本、gradle 设置等进行一些更改，在这种情况下，请搜索 Android 开发人员文档或在此处发表评论。