firebaseAuth.getCurrentUser()返回null DisplayName [英] firebaseAuth.getCurrentUser() return null DisplayName

问题描述

当我使用Google帐户登录并使用getDisplayName()获取名称时，我的名字正确显示，但是在AuthStateListener中却没有.

When I signIn with my google account and get the name with the getDisplayName(), my name appear correctly, but in the AuthStateListener doesn't.

这是我的代码的一部分:

here part of my code:

private void handleSignInResult(GoogleSignInResult result) {

    Alert.dismissProgress();

    if (result.isSuccess()) {
        GoogleSignInAccount acct = result.getSignInAccount();

        if(acct != null) {
            Log.i("NAME", acct.getDisplayName()); <-- RETURN MY NAME CORRECTLY
            credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
            fuser.linkWithCredential(credential).addOnCompleteListener(authResult);                    
        } else {
            //ERROR
        }

    } else {
        //ERROR
    }
}

但是在我的AuthStateListener中

But in my AuthStateListener

@Override
    public void onAuthStateChanged(@NonNull FirebaseAuth firebaseAuth) {
        FirebaseUser nuser = firebaseAuth.getCurrentUser();

        if (nuser != null) {

            Log.i("NAME", nuser.getDisplayName()); <--- RETURN NULL 
        }
    }

有人知道为什么会发生这种情况吗?

Somebody know why this can happen?

推荐答案

只需将一些示例代码添加到伊曼纽尔的答案中(谢谢！)，其他寻求快速复制和粘贴的人就可以使用该代码:

Just to add to Ymmanuel's answer (Thank you!) with some example code for anyone else looking for a quick copy and paste:

FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
    // User is signed in              
    String displayName = user.getDisplayName();
    Uri profileUri = user.getPhotoUrl();

    // If the above were null, iterate the provider data
    // and set with the first non null data
    for (UserInfo userInfo : user.getProviderData()) {
        if (displayName == null && userInfo.getDisplayName() != null) {
            displayName = userInfo.getDisplayName();
        }
        if (profileUri == null && userInfo.getPhotoUrl() != null) {
            profileUri = userInfo.getPhotoUrl();
        }
    }

    accountNameTextView.setText(displayName);
    emailTextView.setText(user.getEmail());
    if (profileUri != null) {
        Glide.with(this)
                .load(profileUri)
                .fitCenter()
                .into(userProfilePicture);
    }
}

如果最初未在User对象中找到，则上面的内容将尝试使用提供者提供的第一个显示名称和照片网址.

The above will try to use the first display name and photo url from the providers if it wasn't initially found in the User object.

奖金::对图像使用滑行: https://github.com /bumptech/glide .

Bonus: Using glide for images: https://github.com/bumptech/glide .

这篇关于firebaseAuth.getCurrentUser()返回null DisplayName的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！