public async Task <Boolean> CacheCategories(HttpClient client, Boolean forceReload = false)
{
//If we've already loaded categories, don't bother again (TODO: refresh strategy)
if (this._categoryList != null && !forceReload)
{
return(true);
}
StorageFolder tempFolder = Windows.Storage.ApplicationData.Current.TemporaryFolder;
String filename = "categories.json";
String category_response = null;
//Attempt to load categories from the saved file
if (!forceReload)
{
try
{
StorageFile file = await tempFolder.GetFileAsync(filename);
category_response = await FileIO.ReadTextAsync(file);
}
catch (Exception)
{
}
}
//Failing that, go load them
Uri category_index_uri = new Uri(App.BLOG_URL + "?json=get_category_index");
try
{
//If category_response is still null, we are either forcing reload or had an error
if (category_response == null)
{
category_response = await client.GetStringAsync(category_index_uri);
}
this._categoryList = await JsonConvert.DeserializeObjectAsync <CategoryListObject>(category_response);
StorageFile file = await tempFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
await FileIO.WriteTextAsync(file, category_response);
return(true);
}
catch (Exception)
{
return(false);
}
}
public async Task<Boolean> CacheCategories(HttpClient client, Boolean forceReload = false)
{
//If we've already loaded categories, don't bother again (TODO: refresh strategy)
if (this._categoryList != null && !forceReload)
{
return true;
}
StorageFolder tempFolder = Windows.Storage.ApplicationData.Current.TemporaryFolder;
String filename = "categories.json";
String category_response = null;
//Attempt to load categories from the saved file
if (!forceReload)
{
try
{
StorageFile file = await tempFolder.GetFileAsync(filename);
category_response = await FileIO.ReadTextAsync(file);
}
catch (Exception)
{
}
}
//Failing that, go load them
Uri category_index_uri = new Uri(App.BLOG_URL + "?json=get_category_index");
try
{
//If category_response is still null, we are either forcing reload or had an error
if (category_response == null)
{
category_response = await client.GetStringAsync(category_index_uri);
}
this._categoryList = await JsonConvert.DeserializeObjectAsync<CategoryListObject>(category_response);
StorageFile file = await tempFolder.CreateFileAsync(filename, CreationCollisionOption.ReplaceExisting);
await FileIO.WriteTextAsync(file, category_response);
return true;
}
catch (Exception)
{
return false;
}
}