为什么在使用Facebook登录按钮调用CallbackManager上的onActivityResult（）后绝对没有任何反应？(Why absolutely nothing happens aft

为什么在使用Facebook登录按钮调用CallbackManager上的onActivityResult（）后绝对没有任何反应？(Why absolutely nothing happens after calling onActivityResult() on the CallbackManager using the Facebook Login Button?)

我一直试图弄清楚如何解决这个问题但是没有成功。

这里的问题是在点击登录按钮后，它正常加载Facebook活动，当它完成时，我的活动收到活动结果并通知CallbackManager（所有文档中描述）。

不幸的是，从这一点来看没有任何事情发生，注册的FacebookCallback没有执行任何方法，甚至没有记录一行来通知错误。

以下是涉及的文件：

public class LoginActivity extends Activity CallbackManager callbackManager; LoginButton loginFacebook; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); FacebookSdk.sdkInitialize(this); setContentView(R.layout.activity_login); ... callbackManager = CallbackManager.Factory.create(); loginFacebook = (LoginButton) findViewById(R.id.login_button); loginFacebook.setReadPermissions("public_profile","email"); loginFacebook.registerCallback(callbackManager, new FacebookCallback<LoginResult>() { @Override public void onSuccess(LoginResult loginResult) { ... (This is never executed) } @Override public void onCancel() { ... (Not executed) } @Override public void onError(FacebookException e) { ... (Not executed either) } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { callbackManager.onActivityResult(resultCode, resultCode, data); super.onActivityResult(requestCode, resultCode, data); } ... }

而activity_login.xml包含这样的按钮

<com.facebook.login.widget.LoginButton android:id="@+id/login_button" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center_horizontal"/>

我还在我的android清单文件中添加了Facebook Activity和APP ID

以及facebook应用程序中的android app键。

希望为此找到解决方案，非常感谢你。

I've been trying to figure out how to solve this but was unsuccessful.

The problem here is after clicking the login button, it loads the Facebook Activity normally, and when it finishes, my activity receives the activity result and notifies the CallbackManager (all as described in the docs).

Unfortunately nothing happens from this point, no method from the registered FacebookCallback is executed, and not even a line is logged to inform of an error.

Here are the involved files:

public class LoginActivity extends Activity CallbackManager callbackManager; LoginButton loginFacebook; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); FacebookSdk.sdkInitialize(this); setContentView(R.layout.activity_login); ... callbackManager = CallbackManager.Factory.create(); loginFacebook = (LoginButton) findViewById(R.id.login_button); loginFacebook.setReadPermissions("public_profile","email"); loginFacebook.registerCallback(callbackManager, new FacebookCallback<LoginResult>() { @Override public void onSuccess(LoginResult loginResult) { ... (This is never executed) } @Override public void onCancel() { ... (Not executed) } @Override public void onError(FacebookException e) { ... (Not executed either) } }); } @Override protected void onActivityResult(int requestCode, int resultCode, Intent data) { callbackManager.onActivityResult(resultCode, resultCode, data); super.onActivityResult(requestCode, resultCode, data); } ... }

And activity_login.xml includes the button like this

<com.facebook.login.widget.LoginButton android:id="@+id/login_button" android:layout_width="match_parent" android:layout_height="match_parent" android:layout_gravity="center_horizontal"/>

I also added the Facebook Activity and APP ID in my android manifest file

As well as the android app key in the facebook application.

Hope figures out a solution for this, thank you very much.