Flutter 颤振:应用程序处于后台时无法显示本地通知
编辑:此问题已在最新的Flatter和firebase版本上修复 我正在收听Firebase FCMFlutter 颤振:应用程序处于后台时无法显示本地通知,flutter,firebase-cloud-messaging,Flutter,Firebase Cloud Messaging,编辑:此问题已在最新的Flatter和firebase版本上修复 我正在收听Firebase FCMdatatype消息,在收到FCM消息时,我打算在应用程序内显示本地通知 _firebaseMessaging.configure( onMessage: (Map<String, dynamic> message) async { print('on message $message'); LocalNotificationService.
data
type消息,在收到FCM消息时,我打算在应用程序内显示本地通知
_firebaseMessaging.configure(
onMessage: (Map<String, dynamic> message) async {
print('on message $message');
LocalNotificationService.showNotoficationWithDefaultSound("onmessage");
},
onResume: (Map<String, dynamic> message) async {
LocalNotificationService.showNotoficationWithDefaultSound("onresume");
print('on resume $message');
},
onLaunch: (Map<String, dynamic> message) async {
LocalNotificationService.showNotoficationWithDefaultSound("onlaunch");
print('on launch $message');
},
onBackgroundMessage: myBackgroundMessageHandler,
);
/// Yes. This is a global function
Future<dynamic> myBackgroundMessageHandler(Map<String, dynamic> message) {
var androidPlatformChannelSpecifics = new AndroidNotificationDetails(
'chanID_007', 'chanName_kk107', 'This is my channel');
var iosPlatformChannelSpecifics = new IOSNotificationDetails();
var platformChannelSpecifics = new NotificationDetails(
androidPlatformChannelSpecifics, iosPlatformChannelSpecifics);
FlutterLocalNotificationsPlugin flutterLocalNotificationsPlugin;
var initializationSettingsAndroid =
new AndroidInitializationSettings('@mipmap/ic_launcher');
var initializationSettingsIos = new IOSInitializationSettings();
var initializationSettings = new InitializationSettings(
initializationSettingsAndroid, initializationSettingsIos);
flutterLocalNotificationsPlugin = new FlutterLocalNotificationsPlugin();
flutterLocalNotificationsPlugin.initialize(initializationSettings,
onSelectNotification: onSelectNotification);
await flutterLocalNotificationsPlugin.show(
0, 'Tada!!', 'test', platformChannelSpecifics,
payload: 'payload#7');
print("background mssg");
}
\u firebaseMessaging.configure(
onMessage:(映射消息)异步{
打印('on message$message');
LocalNotificationService.ShowNotificationWithDefaultSound(“onmessage”);
},
onResume:(映射消息)异步{
LocalNotificationService.ShowNotificationWithDefaultSound(“onresume”);
打印('在简历上$message');
},
onLaunch:(映射消息)异步{
LocalNotificationService.ShowNotificationWithDefaultSound(“onlaunch”);
打印('on launch$message');
},
onBackgroundMessage:myBackgroundMessageHandler,
);
///对。这是一个全局函数
未来myBackgroundMessageHandler(映射消息){
var androidPlatformChannelSpecifics=新的AndroidNotificationDetails(
‘chanID_007’、‘chanName_kk107’、‘这是我的频道’;
var iosPlatformChannelSpecifics=新的IOSNotificationDetails();
var platformChannelSpecifics=新通知详细信息(
androidPlatformChannelSpecifics、iosPlatformChannelSpecifics);
flatterlocalnotificationsplugin flatterlocalnotificationsplugin;
var初始化设置和ROID=
新的AndroidInitializationSettings(“@mipmap/ic_launcher”);
var initializationSettingsIos=新IOSSinitializationSettings();
var initializationSettings=新的初始化设置(
初始化设置和ROID,初始化设置SIOS);
FlatterLocalNotificationsPlugin=新的FlatterLocalNotificationsPlugin();
FlatterLocalNotificationsPlugin.initialize(初始化设置,
onSelectNotification:onSelectNotification);
等待本地通知。显示(
0、'Tada!!'、'test',平台通道详细信息,
有效载荷:“有效载荷#7”);
打印(“背景mssg”);
}
但是显示带有flatter_local_通知插件的本地通知会抛出一个错误
未处理的异常:MissingPluginException(在channel dexterous.com/flatter/local\u notifications上找不到方法初始化的实现)
我在这里遗漏了什么?在添加任何代码之前,您应该尝试运行
flatterclean
当我添加新包并在没有完全重建的情况下执行热重新加载/重新启动时,发生了此错误 如果这与此无关,那么我认为你只是错过了cannel创作部分。我已经使这段代码对我来说运行良好,
wait
部分就是您所需要的
Future<void> ensureInitialized() async {
flutterLocalNotificationsPlugin.initialize(InitializationSettings(
android: AndroidInitializationSettings("ic_notification"), iOS: IOSInitializationSettings()),
);
if (Platform.isAndroid) {
final AndroidNotificationChannel channel = AndroidNotificationChannel(
'high_importance_channel', // id
'High Importance Notifications', // title
'This channel is used for important notifications.', // description
importance: Importance.max,
);
await flutterLocalNotificationsPlugin
.resolvePlatformSpecificImplementation<
AndroidFlutterLocalNotificationsPlugin>()
?.createNotificationChannel(channel);
}
}
Future ensureInitialized()异步{
flatterLocalNotificationsPlugin.initialize(初始化设置(
android:AndroidInitializationSettings(“ic_通知”)、iOS:IOSSInitializationSettings(),
);
if(Platform.isAndroid){
最终AndroidNotificationChannel通道=AndroidNotificationChannel(
“高重要性通道”,//id
“高重要性通知”,//标题
“此通道用于重要通知。”,//说明
重要性:重要性.max,
);
等待通知
.resolvePlatformSpecificImplementation<
AndroidLutterLocalNotificationsPlugin>()
?createNotificationChannel(频道);
}
}
在这里找到了解决方案。需要在android上的应用程序类中注册插件。这回答了你的问题吗?