SDK尚未初始化，请务必先调用FacebookSdk.sdkInitialize()

Question

我在实现 Facebook SDK 时遇到了这个错误，我尝试了-许多-解决方案，但没有一个奏效。这就是我所拥有的：

@Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        FacebookSdk.sdkInitialize(getApplicationContext());
        callbackManager = CallbackManager.Factory.create();
        setContentView(R.layout.activity_name_layout);

LoginButton loginButton = (LoginButton)findViewById(R.id.fb_login_button);
        loginButton.setReadPermissions(Arrays.asList("public_profile", "email"));
        loginButton.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {

            }

            @Override
            public void onCancel() {

            }

            @Override
            public void onError(FacebookException error) {

            }
        });

     @Override
        protected void onActivityResult(int requestCode, int resultCode, Intent data) {
            super.onActivityResult(requestCode, resultCode, data);
            callbackManager.onActivityResult(requestCode, resultCode, data);
        }

摇篮：

compile 'com.facebook.android:facebook-android-sdk:4.8.0'

显现：

 <activity android:name="com.facebook.FacebookActivity"
            android:configChanges=
                "keyboard|keyboardHidden|screenLayout|screenSize|orientation"
            android:theme="@android:style/Theme.Translucent.NoTitleBar"
            android:label="@string/app_name" />

布局按钮：

<LinearLayout

    xmlns:facebook="http://schemas.android.com/apk/res-auto"
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:background="@color/colorPrimaryDark"
    android:padding="10dp"
    android:layout_height="match_parent">

  <com.facebook.login.widget.LoginButton
        android:layout_marginTop="10dp"
        android:id="@+id/fb_login_button"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"

        ></com.facebook.login.widget.LoginButton>
</LinearLayout>

有人可以指出我做错了什么吗？

Answer 1

文档现在已将其设置在 Application 类中：

public class MyApplication extends Application {
    @Override
    public void onCreate() {
        super.onCreate();
        // Initialize the SDK before executing any other operations,
        FacebookSdk.sdkInitialize(getApplicationContext());
        AppEventsLogger.activateApp(this);
    }
}

https://developers.facebook.com/docs/android/getting-started/