Android Loaders onLoadFinished()立即调用

但就我而言,我延长了 AsyncTaskLoader 覆盖了 loadInBackground() 等等等等。 onLoadFinished() 通常调用。

但我的问题发生在网络错误的情况下。如果数据为空 onLoadFinished() 立即调用,无需网络调用。

在任何一种情况下,给定的回调都与加载程序相关联,并且 将在加载程序状态更改时调用。如果在呼叫点 存在并已生成其数据,然后回调 onLoadFinished(Loader,D)将立即调用(在此内部

restartLoader() 在我的活动中,而不是 initLoader()

我将代码的重要部分发布在下面:

在主要活动中:

   protected void postJson(int loaderId, Parcelable object, boolean loadOffline) {
        Bundle bundle = new Bundle();
        bundle.putParcelable(Constants.OBJ, object);
        bundle.putBoolean(Constants.OFFLINE, loadOffline);
        loaderManager.initLoader(loaderId, bundle, this);
    }

@Override
public Result loadInBackground() {
                Constants.verbose("loadInBackground Called");
                .....
                Response tempResult;
                try {
                    tempResult = loadFromNetwork();

                   ........
                } catch (IOException e) {
                    Constants.error("Network Error for loader Id: " + loaderId, e);
                    return null;
                }
        }



@Override
public void deliverResult(Result result) {
            Constants.verbose("deliverResult called");
            super.deliverResult(result);
        }

onLoadFinished() 活动中

    @Override
  public void onLoadFinished(Loader loader, NetworkAsyncTaskLoader.Result data) {
        hideProgress();
        Constants.debug("Load finished for: " + loader.getId());
        .....
    }

07-31 10:08:02.177 27677-28061/com.sample.test D/OkHttp: <-- HTTP FAILED: java.net.ConnectException: Failed to connect to ...
07-31 10:08:02.179 27677-28061/com.sample.test E/Test: Network Error for loader Id: 101
                                                                  java.net.ConnectException: Failed to connect to ...
07-31 10:08:02.192 27677-27677/com.sample.test V/Test: deliverResult called
07-31 10:08:02.193 27677-27677/com.sample.test D/Test: Load finished for: 101
07-31 10:08:08.982 27677-27677/com.sample.test D/Test: Load finished for: 101

initLoader() 或者尝试发起网络呼叫。它直接呼叫 onLoadFinished()

更新:

restartLoader()