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NewsStation.fs
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NewsStation.fs
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namespace RadioClock
open System
open System.Text
open System.Xml
open MonoTouch.UIKit
/// Provides an endless stream of news from an RSS feed.
module NewsStation =
let NextHeadline = new Event<UIView>()
let NextDescription = new Event<UIView>()
let headFont = UIFont.FromName("Helvetica-Bold", 30.0f)
let descFont = UIFont.FromName("Helvetica", 20.0f)
let label (str: String, font: UIFont): UILabel =
new UILabel(Text = str, Font = font, TranslatesAutoresizingMaskIntoConstraints = false, TextColor = UIColor.White)
let newsSeq : seq<NewsItem> =
RssFeed.newsSeq "http://www.tagesanzeiger.ch/rss.html"
do
Async.Start (async {
let news = newsSeq.GetEnumerator()
while true do
// create labels and update UI on main thread
if (news.MoveNext()) then
let n = news.Current
headFont.InvokeOnMainThread(fun _ ->
NextHeadline.Trigger (label(n.head, headFont))
NextDescription.Trigger(label(n.desc, descFont))
)
do! Async.Sleep 10000
}) |> ignore