public void favButtonPressed(UIButton favBtn)
{
Console.WriteLine("Favorite Button Pressed: {0}", favBtn);
RSSItem item = BNRFeedStore.items[(int)favBtn.Tag];
BNRFeedStore.markItemAsFavorite(item);
this.TableView.ReloadData();
}
public static void updateItem(RSSItem item)
{
string dbPath = GetDBPath();
SQLiteConnection db;
db = new SQLiteConnection(dbPath);
db.Update(item);
db.Close();
db = null;
}
static async void FetchRSSAsync(Block completionBlock)
{
using (var wc = new WebClient()) {
string url = "http://forums.bignerdranch.com/smartfeed.php?limit=7_DAY&count_limit=25&sort_by=standard&feed_type=RSS2.0&feed_style=COMPACT"; // count_limit=10&
try {
string xmlData = await wc.DownloadStringTaskAsync(new Uri(url));
XDocument doc = XDocument.Parse(xmlData);
channel.parseXML(doc);
var allItems = doc.Descendants("item");
string dbPath = GetDBPath();
SQLiteConnection db;
db = new SQLiteConnection(dbPath);
db.BeginTransaction();
foreach (XElement current in allItems) {
RSSItem item = new RSSItem();
item.parseXML(current);
item.type = "post";
bool inItems = false;
foreach(RSSItem i in items) {
if (i.link == item.link)
inItems = true;
}
int index = 0;
if (!inItems) {
items.Insert(index++, item);
db.Insert(item);
if (db.Table<RSSItem>().Count() > 100) {
db.Query<RSSItem>("DELETE FROM RSSItems WHERE rowid IN (SELECT rowid FROM RSSItems ORDER BY rowid ASC LIMIT 1)");
}
Console.WriteLine("Items in table: {0} ItemID: {1}", db.Table<RSSItem>().Count(), item.ID);
}
}
db.Commit();
db.Close();
db = null;
completionBlock("success");
}
catch (WebException ex) {
Console.WriteLine("Exception: {0}", ex.Message);
completionBlock(ex.Message);
}
}
}
public static void markItemAsFavorite(RSSItem item)
{
if (!item.isFavorite)
{
item.isFavorite = true;
}
else
{
item.isFavorite = false;
}
updateItem(item);
}
public void listViewControllerHandleObject(ListViewController lvc, object obj)
{
// Cast the passed object to RSSItem
RSSItem entry = obj as RSSItem;
// Make sure that we are really getting an RSSItem
if (entry.GetType() != typeof(RSSItem))
{
return;
}
// Grab the info from the item and push it into the appropriate views
this.webView.LoadRequest(new NSUrlRequest(new NSUrl(entry.link)));
this.NavigationItem.Title = entry.title + " - " + entry.subForum;
}
public RSSItem copy()
{
RSSItem dupItem = new RSSItem();
dupItem.ID = this.ID;
dupItem.title = this.title;
dupItem.link = this.link;
dupItem.description = this.description;
dupItem.author = this.author;
dupItem.category = this.category;
dupItem.comments = this.comments;
dupItem.pubDate = this.pubDate;
dupItem.subForum = this.subForum;
dupItem.isFavorite = this.isFavorite;
dupItem.isRead = this.isRead;
dupItem.type = this.type;
return dupItem;
}
public RSSItem copy()
{
RSSItem dupItem = new RSSItem();
dupItem.ID = this.ID;
dupItem.title = this.title;
dupItem.link = this.link;
dupItem.description = this.description;
dupItem.author = this.author;
dupItem.category = this.category;
dupItem.comments = this.comments;
dupItem.pubDate = this.pubDate;
dupItem.subForum = this.subForum;
dupItem.isFavorite = this.isFavorite;
dupItem.isRead = this.isRead;
dupItem.type = this.type;
return(dupItem);
}
public override void RowSelected(UITableView tableView, NSIndexPath indexPath)
{
if (this.SplitViewController == null)
{
// Push the web view controller onto the navigation stack
// this implicitly creates the web view controller's view the first time through
this.NavigationController.PushViewController(webViewController, true);
}
else
{
this.transferBarButtonItem(webViewController);
// We have to create a new Navigation controller, as the old one
// was only retained by the split view controller and is now gone
UINavigationController nav = new UINavigationController(webViewController);
UIViewController[] vcs = new UIViewController[] { this.NavigationController, nav };
this.SplitViewController.ViewControllers = vcs;
// Make the detail view controller the delegate of the split view controller
// - ignore this warning
this.SplitViewController.WeakDelegate = webViewController;
if (webViewController.popover != null)
{
webViewController.popover.Dismiss(true);
}
}
// grab the selected item
RSSItem entry = BNRFeedStore.items[indexPath.Row];
if (rssType == ListViewControllerRSSType.BNRFeed)
{
entry.isRead = true;
BNRFeedStore.updateItem(entry);
tableView.CellAt(indexPath).Accessory = UITableViewCellAccessory.Checkmark;
}
webViewController.listViewControllerHandleObject(this, entry);
}
public override UITableViewCell GetCell(UITableView tableView, NSIndexPath indexPath)
{
// get cell to reuse or create new one.
UITableViewCell cell;
if (rssType == ListViewControllerRSSType.BNRFeed)
{
cell = tableView.DequeueReusableCell("UITableViewCellBNR");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Subtitle, "UITableViewCellBNR");
}
}
else
{
cell = tableView.DequeueReusableCell("UITableViewCellApple");
if (cell == null)
{
cell = new UITableViewCell(UITableViewCellStyle.Subtitle, "UITableViewCellApple");
}
}
// Get item and initialize cell with item info
RSSItem item = BNRFeedStore.items[indexPath.Row];
cell.TextLabel.Text = item.title;
cell.TextLabel.TextColor = UIColor.Yellow;
cell.DetailTextLabel.Text = item.subForum;
cell.DetailTextLabel.TextColor = UIColor.Yellow;
cell.UserInteractionEnabled = true;
cell.BackgroundColor = UIColor.Clear;
cell.Accessory = UITableViewCellAccessory.None;
cell.SelectedBackgroundView = new UIView()
{
Frame = cell.Frame,
BackgroundColor = UIColor.FromRGB(0.3f, 0.3f, 0.3f)
};
// For BNRFeed list. set up Favbutton, check if favorite, decorate button accordingly, add to cell view
if (rssType == ListViewControllerRSSType.BNRFeed)
{
UIButton favButton = new UIButton(UIButtonType.RoundedRect);
favButton.Frame = new CGRect(cell.Frame.Size.Width - 17, 0, 17, 44);
favButton.AddTarget(this, new Selector("favButtonPressed:"), UIControlEvent.TouchUpInside);
favButton.SetTitle("F", UIControlState.Normal);
favButton.SetTitleColor(UIColor.White, UIControlState.Normal);
favButton.BackgroundColor = UIColor.FromRGB(0.3f, 0.3f, 0.3f);
favButton.Tag = indexPath.Row;
favButton.AutoresizingMask = UIViewAutoresizing.FlexibleLeftMargin;
cell.BringSubviewToFront(favButton);
if (item.isFavorite)
{
favButton.SetTitleColor(UIColor.Green, UIControlState.Normal);
favButton.BackgroundColor = UIColor.FromRGB(0.4f, 0.4f, 0.4f);
}
cell.AddSubview(favButton);
}
// Set checkmark for read items.
if (item.isRead)
{
cell.Accessory = UITableViewCellAccessory.Checkmark;
}
return(cell);
}
public static void markItemAsFavorite(RSSItem item)
{
if (!item.isFavorite)
item.isFavorite = true;
else
item.isFavorite = false;
updateItem(item);
}
public static void updateItem(RSSItem item)
{
string dbPath = GetDBPath();
SQLiteConnection db;
db = new SQLiteConnection(dbPath);
db.Update(item);
db.Close();
db = null;
}
// Get Apple JSON rss feed
public static async void FetchRSSFeedTopSongs(int count, Block completionBlock) // UITableViewController tvc)
{
using (var wc = new WebClient()) {
string url = String.Format("http://itunes.apple.com/us/rss/topsongs/limit={0}/json", count);
channel = new RSSChannel();
channel.type = "songs";
items.Clear();
// Top Songs Cache
// string dbPath = GetDBPath();
// SQLiteConnection db;
// if (!File.Exists(dbPath)) {
// db = new SQLiteConnection(dbPath);
// db.CreateTable<RSSItem>();
// db.Close();
// db = null;
// }
// //db = new SQLiteConnection(dbPath);
// //items = db.Query<RSSItem>("SELECT * FROM RSSItems WHERE type='song'");
//
// NSDate tscDate = topSongsCacheDate;
// if (tscDate != null) {
// NSTimeInterval cacheAge = tscDate.SecondsSinceReferenceDate;
// }
//
// End Top Songs Cache
try {
string JSONData = await wc.DownloadStringTaskAsync(new Uri(url));
JObject parsedJSONData = JObject.Parse (JSONData);
channel.parseJSON(parsedJSONData);
var entries = parsedJSONData["feed"]["entry"];
foreach (var entry in entries) {
RSSItem item = new RSSItem();
item.parseJSON(entry);
item.type = "song";
items.Add(item);
}
completionBlock("success");
}
catch (WebException ex) {
completionBlock(ex.Message);
}
}
}
static async void FetchRSSAsync(Block completionBlock)
{
string url = "http://blog.onobytes.com/feed/"; // count_limit=10&
string xmlData = null;
XDocument doc = null;
using (var wc = new WebClient()) {
try {
xmlData = await wc.DownloadStringTaskAsync(new Uri (url));
} catch (WebException ex) {
Console.WriteLine("Exception: {0}", ex.Message);
completionBlock(ex.Message);
}
}
try {
xmlData = XmlConvert.VerifyXmlChars(xmlData);
}
catch (XmlException ex)
{
Console.WriteLine("Exception: {0}", ex.Message);
//completionBlock ("Invalid XML received from RSS feed.");
List <char> invalidChars = new List <char> ()
{
(char)0x00,
(char)0x01,
(char)0x02,
(char)0x03,
(char)0x04,
(char)0x05,
(char)0x06,
(char)0x07,
(char)0x08,
(char)0x0B,
(char)0x0C,
(char)0x0E,
(char)0x0F,
(char)0x10,
(char)0x11,
(char)0x12,
(char)0x13,
(char)0x14,
(char)0x15,
(char)0x16,
(char)0x17,
(char)0x18,
(char)0x19,
(char)0x1A,
(char)0x1B,
(char)0x1C,
(char)0x1D,
(char)0x1E,
(char)0X1F,
(char)0x7F,
(char)0x80,
(char)0x81,
(char)0x82,
(char)0x83,
(char)0x84,
(char)0x86,
(char)0x87,
(char)0x88,
(char)0x88,
(char)0x89,
(char)0x8A,
(char)0x8B,
(char)0x8C,
(char)0x8D,
(char)0x8E,
(char)0x8F,
(char)0x90,
(char)0x91,
(char)0x92,
(char)0x93,
(char)0x94,
(char)0x95,
(char)0x96,
(char)0x97,
(char)0x98,
(char)0x99,
(char)0x9A,
(char)0x9B,
(char)0x9C,
(char)0x9D,
(char)0x9E,
(char)0x9F
};
foreach (char c in invalidChars)
{
xmlData = xmlData.Replace(c, ' ');
}
}
doc = XDocument.Parse(xmlData);
channel.parseXML(doc);
var allItems = doc.Descendants("item");
string dbPath = GetDBPath();
SQLiteConnection db;
db = new SQLiteConnection(dbPath);
db.BeginTransaction();
foreach (XElement current in allItems)
{
RSSItem item = new RSSItem();
item.parseXML(current);
item.type = "post";
bool inItems = false;
foreach (RSSItem i in items)
{
if (i.link == item.link)
{
inItems = true;
}
}
int index = 0;
if (!inItems)
{
items.Insert(index++, item);
db.Insert(item);
if (db.Table <RSSItem>().Count() > 100)
{
db.Query <RSSItem>("DELETE FROM RSSItems WHERE rowid IN (SELECT rowid FROM RSSItems ORDER BY rowid ASC LIMIT 1)");
}
Console.WriteLine("Items in table: {0} ItemID: {1}", db.Table <RSSItem>().Count(), item.ID);
}
}
db.Commit();
db.Close();
db = null;
completionBlock("success");
}
// Get Apple JSON rss feed
public static async void FetchRSSFeedTopSongs(int count, Block completionBlock) // UITableViewController tvc)
{
using (var wc = new WebClient()) {
string url = String.Format("http://itunes.apple.com/us/rss/topsongs/limit={0}/json", count);
channel = new RSSChannel();
channel.type = "songs";
items.Clear();
// Top Songs Cache
// string dbPath = GetDBPath();
// SQLiteConnection db;
// if (!File.Exists(dbPath)) {
// db = new SQLiteConnection(dbPath);
// db.CreateTable<RSSItem>();
// db.Close();
// db = null;
// }
// //db = new SQLiteConnection(dbPath);
// //items = db.Query<RSSItem>("SELECT * FROM RSSItems WHERE type='song'");
//
// NSDate tscDate = topSongsCacheDate;
// if (tscDate != null) {
// NSTimeInterval cacheAge = tscDate.SecondsSinceReferenceDate;
// }
//
// End Top Songs Cache
try {
string JSONData = await wc.DownloadStringTaskAsync(new Uri(url));
JObject parsedJSONData = JObject.Parse(JSONData);
channel.parseJSON(parsedJSONData);
var entries = parsedJSONData["feed"]["entry"];
foreach (var entry in entries)
{
RSSItem item = new RSSItem();
try
{
item.parseJSON(entry);
item.type = "song";
items.Add(item);
}
catch (Exception ex) {
Console.WriteLine("Exception: {0}", ex);
if (ex.Message == "Accessed JObject values with invalid key value: 1. Object property name expected.")
{
Console.WriteLine("iTunes song does not have preview link. Not showing it in list.");
}
}
}
completionBlock("success");
}
catch (WebException ex) {
completionBlock(ex.Message);
}
}
}
