Android Facebook sdk 分享到用户墙上

Android Facebook sdk share on user wall

我有两个活动:第一个 activity 有一个 Facebook 登录按钮,用户可以在其中成功登录。在接下来的 activity 中有一个分享到用户墙上的按钮。现在在第一次分享之前,它会从用户那里获得发布权限。当用户允许时,它会返回,但不会继续共享操作。但是下次我去同一个 activity 并按下按钮分享,然后每次都分享。

所以问题是当第一次获得用户许可时它不会继续其共享操作。我也希望它第一次工作。用户同时允许这两个操作,然后立即进行共享。下面是我的代码:

private void publishStory() {

    Session session = Session.getActiveSession();
    if (session != null && session.isOpened())
    {
        // Check for publish permissions
        if (!hasPublishPermission())
        {
            Session.NewPermissionsRequest newPermissionsRequest = new Session
                      .NewPermissionsRequest((Activity)context, Arrays.asList("publish_actions"));
                    session.requestNewPublishPermissions(newPermissionsRequest);
            return;
        }

        ringProgressDialog = ProgressDialog.show(context, "Please wait ...", "Sharing on facebook ...", true);


        Bundle postParams = new Bundle();
        postParams.putString("name", "Test");
        postParams.putString("message", "Test message");

        Request.Callback callback= new Request.Callback() {
            public void onCompleted(Response response) {

                try
                {
                    JSONObject graphResponse = response
                            .getGraphObject()
                            .getInnerJSONObject();
                    String postId = null;
                    postId = graphResponse.getString("id");
                } catch (JSONException e) {
                    Log.i(getClass().getSimpleName(), "Facebook JSON error " + e.getMessage());
                } catch (Exception e) {
                    Log.i(getClass().getSimpleName(), "Facebook error " + e.getMessage());
                }


                ringProgressDialog.dismiss();
                FacebookRequestError error = response.getError();
                if (error != null) {
                    Utils.showToast_msg(context, error.getErrorMessage());
                } else {
                    Utils.showToast_msg(context, "Shared Successfully");
                }
            }
        };

        Request request = new Request(session, "me/feed", postParams,
                HttpMethod.POST, callback);
        RequestAsyncTask task = new RequestAsyncTask(request);
        task.execute();
    }
} 

////////////////////////////////////////// //////////////////

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data)
{
    super.onActivityResult(requestCode, resultCode, data);
    if(Session.getActiveSession() != null)
        Session.getActiveSession().onActivityResult(this, requestCode, resultCode, data);
}

在此区块中:

if (!hasPublishPermission()) {
  Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest((Activity)context, Arrays.asList("publish_actions"));
  session.requestNewPublishPermissions(newPermissionsRequest);
  return;
}

最后,您使用的是return;,所以即使您成功获得新权限,if 之后的代码也不会被调用。第二次成功是因为这个block没有执行,app已经有权限了

异步方式 (reference) 是:(某些函数名称可能已关闭)

if (!hasPublishPermission()) {
  Session.NewPermissionsRequest newPermissionsRequest = new Session.NewPermissionsRequest((Activity)context, Arrays.asList("publish_actions"));
  newPermissionsRequest.setCallback(new StatusCallback() {
      @Override
      public void call(Session session, SessionState state, Exception exception) {
          if (session.isOpened() && session.getPermissions().contains("publish_actions")) {
              publishStory();
          }
  });
  session.requestNewPublishPermissions(newPermissionsRequest);
  return;
}