/// <summary>
/// DoWork完成时，将获取到的弹幕保存至fetchedData供UpdateText使用
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FetchBW_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e)
{
if (e.Cancelled == false && e.Error == null)
{
fetchedData result = e.Result as fetchedData;
while (result.contentList.Count > 0)
{
danmuStorage.Add(result.contentList[0]);
result.contentList.RemoveAt(0);
}
}
else
{
Debug.WriteLine("获取时出现错误");
}
getWebContentTimer.Stop();
}
/// <summary>
/// DoWrok开始从后台获取弹幕内容
/// 将获取到的内容保存至e.Result中
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void FetchBW_DoWork(Object sender, DoWorkEventArgs e)
{
BackgroundWorker backgroundWorker = sender as BackgroundWorker;
string textFetched = GetWebContent(setting.getSOURCE());
int num;
List <string> contentList = new List <string>();
if (textFetched == "网络未连接。")
{
num = 1;
contentList.Add(textFetched);
// 如果网络未链接，则在弹幕中提醒
}
else
{
num = 0;
try {
Debug.WriteLine("Fetch:" + textFetched);
// 将获取到的JSON进行解析得到获取的弹幕数量以及所有弹幕
JObject parseResult = JObject.Parse(textFetched);
dynamic dy1 = parseResult as dynamic;
num = (int)dy1["seqNum"];
JArray dataArray = ((JArray)dy1["seqData"]);
if (dataArray != null)
{
JToken data = dataArray.First;
while (data != null)
{
contentList.Add(data.ToString());
data = data.Next;
}
}
}
catch (Newtonsoft.Json.JsonReaderException error) {
// 处理JSON解析错误，这里Debug提示后直接舍弃
Debug.WriteLine("Error: JsonReaderException");
Debug.WriteLine("Fetch Text: " + textFetched);
}
}
// 将解析结果保存至e.Result中供RunWorkerCompleted使用
fetchedData result = new fetchedData(num, contentList);
Debug.WriteLine("Get " + contentList.Count.ToString() + " Results.");
e.Result = result;
backgroundWorker.ReportProgress(100); // 当Dowork完成时直接将进度设为100%，执行RunWorkerCompleted
}
