颤振:从FirebaseMessaging的onBackgroundMessage方法访问SharedReferences
在我的Flatter应用程序中,我想将从Firebase数据消息接收到的数据保存到SharedReferences。 我将FirebaseMessaging对象配置为:颤振:从FirebaseMessaging的onBackgroundMessage方法访问SharedReferences,firebase,flutter,push-notification,firebase-cloud-messaging,sharedpreferences,Firebase,Flutter,Push Notification,Firebase Cloud Messaging,Sharedpreferences,在我的Flatter应用程序中,我想将从Firebase数据消息接收到的数据保存到SharedReferences。 我将FirebaseMessaging对象配置为: _firebaseMessaging.configure( onMessage: (Map<String, dynamic> message) { // this works fine print("onMessage: ");
_firebaseMessaging.configure(
onMessage: (Map<String, dynamic> message) {
// this works fine
print("onMessage: ");
},
onLaunch: (Map<String, dynamic> data) {
print("onLaunch: ");
},
onResume: (Map<String, dynamic> data) {
print("onResume: ");
},
onBackgroundMessage: myBackgroundMessageHandler,
);
\u firebaseMessaging.configure(
onMessage:(映射消息){
//这个很好用
打印(“onMessage:”);
},
onLaunch:(地图数据){
打印(“onLaunch:”);
},
onResume:(地图数据){
打印(“在简历上:”);
},
onBackgroundMessage:myBackgroundMessageHandler,
);
这是顶级myBackgroundMessageHandler方法:
Future<dynamic> myBackgroundMessageHandler(Map<String, dynamic> message) {
// This doesn't work
print("background message"); // this isn't even printed!
SharedPreferences.getInstance().then(...) // here I have to save some data
}
未来myBackgroundMessageHandler(映射消息){
//这不管用
打印(“背景消息”);//这甚至没有打印!
SharedReferences.getInstance()。然后(…)//这里我必须保存一些数据
}
问题是myBackgroundMessageHandler似乎根本没有被调用。
但是,该通知是通过电话接收的。
我还尝试从消息中删除通知字段,在这种情况下,会调用myBackgroundMessageHandler,但通知没有到达。有没有一种方法既可以接收通知又可以触发方法