Question

如何在Facebook上设置应用程序才能发送图片？我有access_token，APP_ID和secret_id但是当你调用这个方法的应用程序时：

FacebookType publishPhotoResponse = facebookClient.publish("me/photos", FacebookType.class,
      BinaryAttachment.with("albumID", bs),
      Parameter.with("message", "description"));

得到此错误：

com.restfb.exception.FacebookNetworkException: A network error occurred while trying to communicate with Facebook: Facebook request failed (HTTP status code null)

有人可以解释如何在Facebook应用程序上逐一设置它吗？

Answer 1

如果您需要申请扩展权限，可以点击此处的guide。从帖子：

让我们首先定义我们需要的权限

// List of additional write permissions being requested
private static final List<String> PERMISSIONS = Arrays.asList("publish_stream, publish_actions");

// Request code for reauthorization requests. 
private static final int REAUTH_ACTIVITY_CODE = 100; 

// Flag to represent if we are waiting for extended permissions
private boolean pendingAnnounce = false;

我们将首先检查我们是否拥有所有必需的权限。如果没有，我们使用我们请求的权限集创建一个新的ReauthorizeRequest。这会引导我们的应用程序外的用户访问Facebook应用程序或浏览器以确认权限。当用户确认请求时，他被重定向回我们的应用程序和onActivityResult，以便调用调用重新授权请求的Activity。

private void handleAnnounce() {
    pendingAnnounce = false;
    Session session = Session.getActiveSession();

    if (session == null || !session.isOpened()) {
        return;
    }

    List<String> permissions = session.getPermissions();
    if (!permissions.containsAll(PERMISSIONS)) {
        pendingAnnounce = true; // Mark that we are currently waiting for confirmation of publish permissions 
        session.addCallback(this); 
        requestPublishPermissions(this, session, PERMISSIONS, REAUTH_ACTIVITY_CODE);
        return;
    }

    // TODO: Publish the post. You would need to implement this method to actually post something
    publishMessage();
}

void requestPublishPermissions(Activity activity, Session session, List<String> permissions,
    int requestCode) {
    if (session != null) {
        Session.ReauthorizeRequest reauthRequest = new Session.ReauthorizeRequest(activity, permissions)
            .setRequestCode(requestCode);
        session.reauthorizeForPublish(reauthRequest);
    }
}

如果会话状态发生变化，则处理结果并调用onSessionStateChanged。然后，如果我们的令牌已成功更新，我们会检查该方法并尝试再次发布该消息。

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    switch (requestCode) {
    case REAUTH_ACTIVITY_CODE:
        Session session = Session.getActiveSession();
        if (session != null) {
            session.onActivityResult(this, requestCode, resultCode, data);
        }
        break;
    }
}
protected void onSessionStateChange(final Session session, SessionState state, Exception exception) {
    if (session != null && session.isOpened()) {
        if (state.equals(SessionState.OPENED_TOKEN_UPDATED)) {
            // Session updated with new permissions
            // so try publishing once more.
            tokenUpdated();
        }
    }
}

/**
 * Called when additional permission request is copmleted successfuly.
 */
private void tokenUpdated() {
    // Check if a publish action is in progress
    // awaiting a successful reauthorization
    if (pendingAnnounce) {
        // Publish the action
        handleAnnounce();
    }
}

如何在应用程序中设置Facebook上传照片的权限？

1 个答案: