Flutter PluginRegistrantCallback未在Flatter中设置
我在运行应用程序时遇到此错误,应用程序关闭时的后台通知不起作用:Flutter PluginRegistrantCallback未在Flatter中设置,flutter,firebase-cloud-messaging,Flutter,Firebase Cloud Messaging,我在运行应用程序时遇到此错误,应用程序关闭时的后台通知不起作用: firebase\u消息:^7.0.3 final FirebaseMessaging firebaseMessaging = FirebaseMessaging(); @override void initState() { super.initState(); registerNotification(); } void registerNotification() { f
firebase\u消息:^7.0.3
final FirebaseMessaging firebaseMessaging = FirebaseMessaging();
@override
void initState() {
super.initState();
registerNotification();
}
void registerNotification() {
firebaseMessaging.requestNotificationPermissions();
firebaseMessaging.configure(onMessage: (Map<String, dynamic> message) {
print('onMessage: $message');
return ;
}, onResume: (Map<String, dynamic> message) {
print('onResume: $message');
return Navigator.push(
context,
MaterialPageRoute(
builder: (context) => NotificationsScreen()));
}, onBackgroundMessage: _firebaseMessagingBackgroundHandler,
onLaunch: (Map<String, dynamic> message) {
print('onLaunch: $message');
return;
});
firebaseMessaging.getToken().then((token) {
print('token: $token');
FirebaseFirestore.instance
.collection('Consultant')
.doc(firebaseUser.uid)
.update({'deviceToken': token});
}).catchError((err) {
//Fluttertoast.showToast(msg: err.message.toString());
});
}
final FirebaseMessaging FirebaseMessaging=FirebaseMessaging();
@凌驾
void initState(){
super.initState();
注册通知();
}
无效注册表通知(){
firebaseMessaging.requestNotificationPermissions();
配置(onMessage:(映射消息){
打印('onMessage:$message');
返回;
},onResume:(映射消息){
打印('onResume:$message');
返回导航器.push(
上下文
材料路线(
生成器:(上下文)=>NotificationsScreen());
},onBackgroundMessage:_firebaseMessagingBackgroundHandler,
onLaunch:(映射消息){
打印('onLaunch:$message');
返回;
});
firebaseMessaging.getToken().then((令牌){
打印('token:$token');
FirebaseFirestore.instance
.收款(“顾问”)
.doc(firebaseUser.uid)
.update({'deviceToken':标记});
}).catchError((err){
//flatterToast.showtoos(msg:err.message.toString());
});
}
下课:
Future<dynamic> _firebaseMessagingBackgroundHandler(
Map<String, dynamic> message,
) async {
// Initialize the Firebase app
await Firebase.initializeApp();
print('onBackgroundMessage received: $message');
}
Future\u firebaseMessagingBackgroundHandler(
地图信息,
)异步的{
//初始化Firebase应用程序
等待Firebase.initializeApp();
打印('onBackgroundMessage received:$message');
}
我得到:错误:flatter/lib/ui/ui\u dart\u state.cc(186)]未处理的异常:PlatformException(错误,未设置PluginRegistrantCallback.,null,java.lang.RuntimeException:未设置PluginRegistrantCallback。
我发现的问题是,当应用程序关闭时,我无法获得通知。
在互联网上搜索时,我发现:PluginRegistrantCallback未设置
是一个涉及Application.kt类的错误,但我尝试以任何方式放置此文件均未成功。
有人有什么建议吗?该错误来自您的应用程序文件。请确保正确注册 Application.java
package <your package name>;
import com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin;
import io.flutter.plugin.common.PluginRegistry;
import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin;
public final class CustomPluginRegistrant {
public static void registerWith(PluginRegistry registry) {
if (alreadyRegisteredWith(registry)) {
return;
}
FirebaseMessagingPlugin.registerWith(registry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
FlutterLocalNotificationsPlugin.registerWith(registry.registrarFor("com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin"));
}
private static boolean alreadyRegisteredWith(PluginRegistry registry) {
final String key = CustomPluginRegistrant.class.getCanonicalName();
if (registry.hasPlugin(key)) {
return true;
}
registry.registrarFor(key);
return false;
}
}
包;
导入com.dexterous.flatterLocalNotifications.flatterLocalNotificationsPlugin;
导入io.flatter.plugin.common.PluginRegistry;
导入io.flatter.plugins.firebasemessaging.FirebaseMessagingPlugin;
公共最终类CustomPluginRegistrant{
公共静态无效注册表(PluginRegistry注册表){
if(alreadyRegisteredWith(注册表)){
返回;
}
FirebaseMessagingPlugin.registerWith(registry.registerFor(“io.flatter.plugins.FirebaseMessagingPlugin.FirebaseMessagingPlugin”);
flatterLocalNotificationsPlugin.registerWith(registry.registerFor(“com.dexterous.flatterLocalNotifications.flatterLocalNotificationsPlugin”);
}
私有静态布尔值alreadyRegisteredWith(PluginRegistry注册表){
最后一个字符串键=CustomPluginRegistrant.class.getCanonicalName();
if(registry.hasPlugin(key)){
返回true;
}
注册处。注册人(注册表项);
返回false;
}
}
在同一路径中添加一个名为CustomPluginRegistant.java的文件
package <your package name>;
import com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin;
import io.flutter.plugin.common.PluginRegistry;
import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin;
public final class CustomPluginRegistrant {
public static void registerWith(PluginRegistry registry) {
if (alreadyRegisteredWith(registry)) {
return;
}
FirebaseMessagingPlugin.registerWith(registry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
FlutterLocalNotificationsPlugin.registerWith(registry.registrarFor("com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin"));
}
private static boolean alreadyRegisteredWith(PluginRegistry registry) {
final String key = CustomPluginRegistrant.class.getCanonicalName();
if (registry.hasPlugin(key)) {
return true;
}
registry.registrarFor(key);
return false;
}
}
包;
导入com.dexterous.flatterLocalNotifications.flatterLocalNotificationsPlugin;
导入io.flatter.plugin.common.PluginRegistry;
导入io.flatter.plugins.firebasemessaging.FirebaseMessagingPlugin;
公共最终类CustomPluginRegistrant{
公共静态无效注册表(PluginRegistry注册表){
if(alreadyRegisteredWith(注册表)){
返回;
}
FirebaseMessagingPlugin.registerWith(registry.registerFor(“io.flatter.plugins.FirebaseMessagingPlugin.FirebaseMessagingPlugin”);
flatterLocalNotificationsPlugin.registerWith(registry.registerFor(“com.dexterous.flatterLocalNotifications.flatterLocalNotificationsPlugin”);
}
私有静态布尔值alreadyRegisteredWith(PluginRegistry注册表){
最后一个字符串键=CustomPluginRegistrant.class.getCanonicalName();
if(registry.hasPlugin(key)){
返回true;
}
注册处。注册人(注册表项);
返回false;
}
}
如果您没有使用本地通知插件,则可以从代码中删除该部分。我已尝试使用
应用程序。java
使用firebase\u消息传递的解决方法:^7.0.3
,我遇到了很多问题。幸运的是,我遇到了一个关于如何为Flatter设置firebase的更新。如图所示鉴于此,当您使用flatter Android嵌入V2(flatter版本>=1.12)时,Android不需要额外的步骤。因此,我们首先向pubsec.yaml添加以下依赖项:
firebase_core: ^0.7.0
firebase_messaging: ^8.0.0-dev.15
我在中包含了一个更详细的答案和代码示例
您运行
flatter pub get
。然后按照中提到的每个步骤进行操作,就可以开始了。我们需要将这些文件放在哪里的问题也一样?我假设我们需要将Application.java与CustomPluginRegistant.java一起放在java文件夹中路径是->android/app/src/main/java//为什么Appli中的代码是java是否与CustomPluginRegistrant中的类似?