FacebookHelper.java 文件源码

public FacebookHelper(@NonNull FacebookListener facebookListener) {
  mListener = facebookListener;
  mCallBackManager = CallbackManager.Factory.create();
  FacebookCallback<LoginResult> mCallBack = new FacebookCallback<LoginResult>() {
    @Override public void onSuccess(LoginResult loginResult) {
      mListener.onFbSignInSuccess(loginResult.getAccessToken().getToken(),
          loginResult.getAccessToken().getUserId());
    }

    @Override public void onCancel() {
      mListener.onFbSignInFail("User cancelled operation");
    }

    @Override public void onError(FacebookException e) {
      mListener.onFbSignInFail(e.getMessage());
    }
  };
  LoginManager.getInstance().registerCallback(mCallBackManager, mCallBack);
}