I am working on this app and keep getting this error. No solutions have worked so far.
_initialize() async{
SharedPreferences prefs = await SharedPreferences.getInstance();
bool loggedIn = prefs.getBool(LOGGED_IN) ?? false;
if(!loggedIn){
_status = Status.Unauthenticated;
}else{
await auth.currentUser.then((User currentUser) async{
_user = currentUser;
_status = Status.Authenticated;
_userModel = await _userServices.getUserById(currentUser.uid);
});
}
CodePudding user response：
Because the property currentUser is not a Future, it gives you the value immediately, so you can't wait for it and you don't even have to.
So the else block should be:
else {
_user = auth.currentUser;
_status = Status.Authenticated;
_userModel = await _userServices.getUserById(auth.currentUser.uid);
}
CodePudding user response：
NEVER ever use a .then
With a high probability, from my experience, if you are using a future.then in your code, you are doing something wrong.
After this premise:
You probably don't understand what you are doing, here some comments and a proper formatting for you to understand better.
//It is a good practice to always mark the return type
void _initialize() async {
SharedPreferences prefs = await SharedPreferences.getInstance();
bool loggedIn = prefs.getBool(LOGGED_IN) ?? false;
if(!loggedIn){
_status = Status.Unauthenticated;
}else{
//You are awaiting the future currentUser. But in fact, it isn't a future at all, as you can read [here][1]
await auth.currentUser.then((User currentUser) async{
_user = currentUser;
_status = Status.Authenticated;
_userModel = await _userServices.getUserById(currentUser.uid);
});
}
}
The code you should use should be something like this:
//It is a good practice to always mark the return type
void _initialize() async {
SharedPreferences prefs = await SharedPreferences.getInstance();
bool loggedIn = prefs.getBool(LOGGED_IN) ?? false;
if(!loggedIn){
_status = Status.Unauthenticated;
}else{
_user = auth.currentUser;
_status = Status.Authenticated;
_userModel = await _userServices.getUserById(auth.currentUser.uid);
}
}