[英]Using Kotlin and Firebase to trigger a sendEmailVerification with onAuthStateChanged callback
[英]Anonymous login is not triggering onAuthStateChanged callback
如果用户未登录,我将匿名登录,但是不会触发onAuthStateChanged回调。 另外,每当我尝试使用mAuth.getCurrentUser().getUid()
,它都会给我NullPointerException。 这是我的代码:
mAuth = FirebaseAuth.getInstance();
mAuthListener = new FirebaseAuth.AuthStateListener() {
@Override
public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
// do something
} else {
mAuth.signInAnonymously().addOnCompleteListener(MainActivity.this, new OnCompleteListener<AuthResult>() {
@Override
public void onComplete(@NonNull Task<AuthResult> task) {
System.out.println("SIGNED IN ANONYMOUSLY");
System.out.println(mAuth.getCurrentUser().getUid()); // crashes here
}
});
}
}
};
坚持了几个小时,我不知道可能是什么问题。
在此先感谢您的帮助。
我非常确定,因为您的signInAnonymously
调用在onComplete
回调中未成功返回。 更换
System.out.println("SIGNED IN ANONYMOUSLY");
System.out.println(mAuth.getCurrentUser().getUid());
与
if (task.isSuccessful()) {
System.out.println("SIGNED IN ANONYMOUSLY");
System.out.println(mAuth.getCurrentUser().getUid());
}
else{
Log.i(TAG, "signInAnonymously", task.getException());
}
并检查异常
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