[英]Cannot resolve final FirebaseUser firebaseUser = FirebaseAuth.getInstance();
无法解决
final FirebaseUser firebaseUser = FirebaseAuth.getInstance();
如果我把它改成
final FirebaseAuth firebaseAuth = FirebaseAuth.getInstance();
它不会在此解析 getUid
if (!user.getUser_id().equals(firebaseUser.getUid())){
mUsers.add(user);
如果我将其更改为FirebaseUser firebaseUser = FirebaseUser.getInstance();
它不会解析 getInstance(); 我该怎么做才能消除错误,请帮忙
private void readUsers() {
final FirebaseUser firebaseUser = FirebaseAuth.getInstance();
DatabaseReference reference = FirebaseDatabase.getInstance().getReference("users");
reference.addValueEventListener(new ValueEventListener() {
@Override
public void onDataChange(DataSnapshot dataSnapshot) {
mUsers.clear();
for (DataSnapshot snapshot : dataSnapshot.getChildren()){
User user = snapshot.getValue(User.class);
assert user !=null;
assert firebaseUser !=null;
if (!user.getUser_id().equals(firebaseUser.getUid())){
mUsers.add(user);
}
}
userAdapter = new UserAdapter(getContext(), mUsers);
recyclerView.setAdapter(userAdapter);
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
FirebaseAuth.getInstance()
返回的实例FirebaseAuth
,所以这样的:
final FirebaseUser firebaseUser = FirebaseAuth.getInstance();
应该是这样的:
final FirebaseAuth auth = FirebaseAuth.getInstance();
然后改变这个:
assert user !=null;
assert firebaseUser !=null;
if (!user.getUser_id().equals(firebaseUser.getUid())){
mUsers.add(user);
}
进入这个:
if (!user.getUser_id().equals(auth.getCurrentUser().getUid())){
mUsers.add(user);
}
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