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我有一个带有 facebook 登录的 android 应用程序。我在一个片段中初始化了 facebook sdk。但是在启动登录过程时从未调用过 onActivityResult。

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {
        // Inflate the layout for this fragment
        FacebookSdk.sdkInitialize(getContext());
        AppEventsLogger.activateApp(getContext());
        FacebookSdk.setApplicationId(getResources().getString(R.string.facebook_app_id));
        callbackManager = CallbackManager.Factory.create();
        View view=inflater.inflate(R.layout.fragment_signin, container, false);
        gButton=(Button)view.findViewById(R.id.loginGmail);
        fButton=(LoginButton) view.findViewById(R.id.loginFacebook);
        GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .build();
        fButton.setReadPermissions("email");
        gButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                signIn();
            }
        });
        mGoogleApiClient = new GoogleApiClient.Builder(getContext())
                .enableAutoManage(getActivity() /* FragmentActivity */, this /* OnConnectionFailedListener */)
                .addApi(Auth.GOOGLE_SIGN_IN_API, gso)
                .build();
        fButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {
                Toast.makeText(getActivity(),"Success"+loginResult.getAccessToken(),Toast.LENGTH_LONG).show();

            }

            @Override
            public void onCancel() {

            }

            @Override
            public void onError(FacebookException error) {
                Toast.makeText(getActivity(),"Failed",Toast.LENGTH_LONG).show();

            }
        });

        return view;
    }
    @Override
    public void onActivityResult(int requestCode, int resultCode, Intent data) {
        super.onActivityResult(requestCode, resultCode, data);
        callbackManager.onActivityResult(requestCode,resultCode, data);
        // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
        if (requestCode == RC_SIGN_IN) {
            GoogleSignInResult result = Auth.GoogleSignInApi.getSignInResultFromIntent(data);
            handleSignInResult(result);
        }
    }
    private void signIn() {
        Intent signInIntent = Auth.GoogleSignInApi.getSignInIntent(mGoogleApiClient);
        startActivityForResult(signInIntent, RC_SIGN_IN);
    }

但是当谷歌登录启动时调用 onActivityResult 。

4

2 回答 2

14

最后我得到了我的答案。我忘了添加

fButton.setFragment(this);

对于片段，此setFragment(this);方法是必需的。参考 这个。

于 2016-09-23T11:03:41.990 回答
0

这是因为您在 Fragment 中集成 facebook 以获得片段 onActivty 结果的结果，您必须从 Activty OnActivity 结果中调用它

检查此图像以更好地理解

在超级调用之前，您的活动 OnACtivity 结果中的此代码您将在片段 onActivity 结果中获得结果希望这有帮助

于 2016-09-22T13:33:56.917 回答