问题
I am using FirebaseAuth to login user through FB. Here is the code:
private FirebaseAuth mAuth;
private FirebaseAuth.AuthStateListener mAuthListener;
private CallbackManager mCallbackManager;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
FacebookSdk.sdkInitialize(getApplicationContext());
// Initialize Firebase Auth
mAuth = FirebaseAuth.getInstance();
mAuthListener = firebaseAuth -> {
FirebaseUser user = firebaseAuth.getCurrentUser();
if (user != null) {
// User is signed in
Log.d(TAG, "onAuthStateChanged:signed_in:" + user.getUid());
} else {
// User is signed out
Log.d(TAG, "onAuthStateChanged:signed_out");
}
if (user != null) {
Log.d(TAG, "User details : " + user.getDisplayName() + user.getEmail() + "\n" + user.getPhotoUrl() + "\n"
+ user.getUid() + "\n" + user.getToken(true) + "\n" + user.getProviderId());
}
};
}
The issue is that the photo in I get from using user.getPhotoUrl() is very small. I need a larger image and can't find a way to do that. Any help would be highly appreciated.
I have already tried this
Get larger facebook image through firebase login
but it's not working although they are for swift I don't think the API should differ.
回答1:
It is not possible to obtain a profile picture from Firebase that is larger than the one provided by getPhotoUrl(). However, the Facebook graph makes it pretty simple to get a user's profile picture in any size you want, as long as you have the user's Facebook ID.
String facebookUserId = "";
FirebaseUser user = FirebaseAuth.getInstance().getCurrentUser();
ImageView profilePicture = (ImageView) findViewById(R.id.image_profile_picture);
// find the Facebook profile and get the user's id
for(UserInfo profile : user.getProviderData()) {
// check if the provider id matches "facebook.com"
if(FacebookAuthProvider.PROVIDER_ID.equals(profile.getProviderId())) {
facebookUserId = profile.getUid();
}
}
// construct the URL to the profile picture, with a custom height
// alternatively, use '?type=small|medium|large' instead of ?height=
String photoUrl = "https://graph.facebook.com/" + facebookUserId + "/picture?height=500";
// (optional) use Picasso to download and show to image
Picasso.with(this).load(photoUrl).into(profilePicture);
回答2:
Two lines of code. FirebaseUser user = firebaseAuth.getCurrentUser();
String photoUrl = user.getPhotoUrl().toString();
photoUrl = photoUrl + "?height=500";
simply append "?height=500" at the end
回答3:
If someone is looking for this but for Google account using FirebaseAuth. I have found a workaround for this. If you detail the picture URL:
https://lh4.googleusercontent.com/../.../.../.../s96-c/photo.jpg
The /s96-c/ specifies the image size (96x96 in this case)so you just need to replace that value with the desired size.
String url= FirebaseAuth.getInstance().getCurrentUser().getPhotoUrl();
url = url.replace("/s96-c/","/s300-c/");
You can analyze your photo URL to see if there is any other way to change its size.
As I said in the begining, this only works for Google accounts. Check @Mathias Brandt 's answer to get a custom facebook profile picture size.
EDIT 2020:
Thanks to Andres SK and @alextouzel for pointing this out. Photo URLs format have changed and now you can pass URL params to get different sizes of the picture. Check https://developers.google.com/people/image-sizing.
回答4:
photoUrl = "https://graph.facebook.com/" + facebookId+ "/picture?height=500"
You can store this link to firebase database with user facebookId and use this in app. Also you can change height as a parameter
回答5:
Not for Android, but for iOS, but I thought it could be helpful for other people (I didn't find a iOS version of this question).
Based the provided answers I created a Swift 4.0 extension that adds a function urlForProfileImageFor(imageResolution:) to the Firebase User object. You can either ask for the standard thumbnail, a high resolution (I put this to 1024px but easily changed) or a custom resolution image. Enjoy:
extension User {
enum LoginType {
case anonymous
case email
case facebook
case google
case unknown
}
var loginType: LoginType {
if isAnonymous { return .anonymous }
for userInfo in providerData {
switch userInfo.providerID {
case FacebookAuthProviderID: return .facebook
case GoogleAuthProviderID : return .google
case EmailAuthProviderID : return .email
default : break
}
}
return .unknown
}
enum ImageResolution {
case thumbnail
case highres
case custom(size: UInt)
}
var facebookUserId : String? {
for userInfo in providerData {
switch userInfo.providerID {
case FacebookAuthProviderID: return userInfo.uid
default : break
}
}
return nil
}
func urlForProfileImageFor(imageResolution: ImageResolution) -> URL? {
switch imageResolution {
//for thumnail we just return the std photoUrl
case .thumbnail : return photoURL
//for high res we use a hardcoded value of 1024 pixels
case .highres : return urlForProfileImageFor(imageResolution:.custom(size: 1024))
//custom size is where the user specified its own value
case .custom(let size) :
switch loginType {
//for facebook we assemble the photoUrl based on the facebookUserId via the graph API
case .facebook :
guard let facebookUserId = facebookUserId else { return photoURL }
return URL(string: "https://graph.facebook.com/\(facebookUserId)/picture?height=\(size)")
//for google the trick is to replace the s96-c with our own requested size...
case .google :
guard var url = photoURL?.absoluteString else { return photoURL }
url = url.replacingOccurrences(of: "/s96-c/", with: "/s\(size)-c/")
return URL(string:url)
//all other providers we do not support anything special (yet) so return the standard photoURL
default : return photoURL
}
}
}
}
回答6:
I use this code in a Second Activity, after having already logged in, for me the Token that is obtained in loginResult.getAccessToken().getToken(); It expires after a while, so researching I found this and it has served me
final String img = mAuthProvider.imgUsuario().toString(); // is = mAuth.getCurrentUser().getPhotoUrl().toString;
final String newToken = "?height=1000&access_token=" + AccessToken.getCurrentAccessToken().getToken();
Picasso.get().load(img + newToken).into("Image reference");
回答7:
Note: From Graph API v8.0 you must provide the access token for every UserID request you do.
Hitting the graph API:
https://graph.facebook.com/<user_id>/picture?height=1000&access_token=<any_of_above_token>
With firebase:
FirebaseUser user = mAuth.getCurrentUser();
String photoUrl = user.getPhotoUrl() + "/picture?height=1000&access_token=" +
loginResult.getAccessToken().getToken();
You get the token from registerCallback just like this
LoginManager.getInstance().registerCallback(mCallbackManager, new FacebookCallback<LoginResult>() {
@Override
public void onSuccess(LoginResult loginResult) {
FirebaseUser user = mAuth.getCurrentUser();
String photoUrl = user.getPhotoUrl() + "/picture?height=1000&access_token=" + loginResult.getAccessToken().getToken();
}
@Override
public void onCancel() {
Log.d("Fb on Login", "facebook:onCancel");
}
@Override
public void onError(FacebookException error) {
Log.e("Fb on Login", "facebook:onError", error);
}
});
This is what documentation says:
Beginning October 24, 2020, an access token will be required for all UID-based queries. If you query a UID and thus must include a token:
- use a User access token for Facebook Login authenticated requests
- use a Page access token for page-scoped requests
- use an App access token for server-side requests
- use a Client access token for mobile or web client-side requests
We recommend that you only use a Client token if you are unable to use one of the other token types.
回答8:
Check below response
final graphResponse = await http.get(
'https://graph.facebook.com/v2.12/me?fields=name,picture.width(800).height(800),first_name,last_name,email&access_token=${fbToken}');
来源：https://stackoverflow.com/questions/39094657/android-how-to-get-larger-profile-pic-from-facebook-using-firebaseauth