/// <summary>
/// 获取频道列表
/// </summary>
/// <returns></returns>
public async Task <List <Channel> > GetChannelList()
{
string filename = "channelList.json";
ResultDataTemplate <List <Channel> > channelResult = new ResultDataTemplate <List <Channel> >();
channelResult.Result = await FileHelper.Current.ReadObjectAsync <List <Channel> >(filename);
if (channelResult.Result == null)
{
PostDataTemplate <AllChannelListRequest> postData = new PostDataTemplate <AllChannelListRequest>()
{
deviceId = DeviceInformationHelper.GetDeviceId(),
request = new AllChannelListRequest()
{
type = "0"
}
};
channelResult = await PostJson <PostDataTemplate <AllChannelListRequest>, ResultDataTemplate <List <Channel> > >(ServiceUri.AllChannel, postData);
if (channelResult != null && channelResult.Result != null)
{
await FileHelper.Current.WriteObjectAsync(channelResult.Result, filename);
}
}
channelResult.Result.Insert(0, new Channel {
IsTop = "False", NodeId = 0, NodeName = "头条"
});
return(channelResult.Result);
}
/// <summary>
/// 获取新闻列表
/// </summary>
/// <param name="nodeId">频道ID</param>
/// <param name="pageIndex">页码</param>
/// <returns></returns>
public async Task <List <Essay> > GetEssayList(int nodeId, int pageIndex)
{
string filename = "essayList_" + nodeId + "_" + pageIndex + ".json";
ResultDataTemplate <List <Essay> > essayResult = new ResultDataTemplate <List <Essay> >();
if (!ConnectionHelper.IsInternetAvailable) //无网络
{
essayResult.Result = await FileHelper.Current.ReadObjectAsync <List <Essay> >(filename);
}
else
{
PostDataTemplate <AllChannelListRequest> postData = new PostDataTemplate <AllChannelListRequest>()
{
deviceId = DeviceInformationHelper.GetDeviceId(),
request = new AllChannelListRequest()
{
elementsCountPerPage = 20,
nodeIds = nodeId,
pageIndex = pageIndex,
parentNodeId = "news",
type = "null",
}
};
essayResult = await PostJson <PostDataTemplate <AllChannelListRequest>, ResultDataTemplate <List <Essay> > >(ServiceUri.AllChannelList, postData);
if (essayResult != null && essayResult.Result != null)
{
await FileHelper.Current.WriteObjectAsync(essayResult.Result, filename);
}
}
return(essayResult?.Result);
}
/// <summary>
/// 阅读文章
/// 适用于新闻 和 攻略
/// </summary>
/// <param name="contentId">文章Id</param>
/// <returns></returns>
public async Task <News> GetEssay(string contentId)
{
string filename = "news_" + contentId + ".json";
ResultDataTemplate <News> newsResult = new ResultDataTemplate <News>();
if (!ConnectionHelper.IsInternetAvailable) //无网络
{
newsResult.Result = await FileHelper.Current.ReadObjectAsync <News>(filename);
}
else
{
PostDataTemplate <AllChannelListRequest> postData = new PostDataTemplate <AllChannelListRequest>()
{
request = new AllChannelListRequest
{
contentId = contentId,
pageIndex = 1
},
deviceId = DeviceInformationHelper.GetDeviceId()
};
newsResult = await PostJson <PostDataTemplate <AllChannelListRequest>, ResultDataTemplate <News> >(ServiceUri.TwoArticle, postData);
if (newsResult != null && newsResult.Result != null)
{
await FileHelper.Current.WriteObjectAsync <News>(newsResult.Result, filename);
}
}
return(newsResult?.Result);
}