I just took this code snippet from realm which fits my requirement .
var session = realm.GetSession();
var uploadProgress = session.GetProgressObservable(ProgressDirection.Upload, ProgressMode.ReportIndefinitely);
var downloadProgress = session.GetProgressObservable(ProgressDirection.Download, ProgressMode.ReportIndefinitely);
var token = uploadProgress.CombineLatest(downloadProgress, (upload, download) =>
{
return new
{
TotalTransferred = upload.TransferredBytes + download.TransferredBytes,
TotalTransferable = upload.TransferableBytes + download.TransferableBytes
};
})
.Throttle(TimeSpan.FromSeconds(0.1))
.ObserveOn(SynchronizationContext.Current)
.Subscribe(progress =>
{
if (progress.TotalTransferred < progress.TotalTransferable)
{
// Show spinner
}
else
{
// Hide spinner
}
});
But CombineLatest method is not available inside IObservable interface in Xamarin provided .Net subset.
But given I took this directly from real websites it is supposed to work .
Related
I'm trying to develop CAF v3 receiver app and it's working with in-built and setup boxes cast devices but not working on external cast devices.
External cast devices NC2-A65 throws PIPELINE_INITIALIZATION_ERROR or VIDEO_ERROR with shaka error code 3016
After debugging, observation is drm License Url doesn't get called when useLegacyDashSupport is true
Any help is appreciated
Here is the code,
<script>
const context = cast.framework.CastReceiverContext.getInstance();
context.setLoggerLevel(cast.framework.LoggerLevel.DEBUG);
const options = new cast.framework.CastReceiverOptions();
const castDebugLogger = cast.debug.CastDebugLogger.getInstance();
const playerManager = context.getPlayerManager();
const playbackConfig = (Object.assign(new cast.framework.PlaybackConfig(), playerManager.getPlaybackConfig()));
options.maxInactivity = 3600;
options.supportedCommands = cast.framework.messages.Command.ALL_BASIC_MEDIA;
castDebugLogger.setEnabled(true);
// Show debug overlay
castDebugLogger.showDebugLogs(true);
let useLegacyDashSupport = false;
if (context.canDisplayType('video/mp4; codecs="avc1.640028"; width=3840; height=2160')) {
// The device and display can both do 4k. Assume a 4k limit.
castDebugLogger.info("Hardware Resolution: ", '3840x2160');;
options.touchScreenOptimizedApp = true;
} else {
// Chromecast has always been able to do 1080p. Assume a 1080p limit.
castDebugLogger.info("Hardware Resolution: ", '1920x1080');
useLegacyDashSupport = true;
}
options.useLegacyDashSupport = useLegacyDashSupport;
context.loadPlayerLibraries(useLegacyDashSupport);
context.addEventListener(cast.framework.system.EventType.ERROR, event => {
castDebugLogger.info('Context Error - ', JSON.stringify(event));
});
playerManager.addEventListener(cast.framework.events.EventType.ERROR, event => {
castDebugLogger.info('Error - ', "ERROR event: " + JSON.stringify(event));
});
playerManager.addEventListener(cast.framework.events.EventType.MEDIA_STATUS, (event) => {
castDebugLogger.info('Player State - ', event.mediaStatus.playerState);
});
// Intercept the LOAD request to be able to read in a contentId and get data.
playerManager.setMessageInterceptor(cast.framework.messages.MessageType.LOAD, loadRequestData => {
castDebugLogger.info('LoadRequest Data - ', JSON.stringify(loadRequestData));
const error = new cast.framework.messages.ErrorData(cast.framework.messages.ErrorType.LOAD_CANCELLED);
if (!loadRequestData.media) {
error.reason = cast.framework.messages.ErrorReason.INVALID_PARAM;
return error;
}
if (!loadRequestData.media.contentId) {
error.reason = cast.framework.messages.ErrorReason.INVALID_PARAM;
return error;
}
loadRequestData.autoplay = true;
let url = loadRequestData.media.contentId;
castDebugLogger.info('Content Id - ', url);
const ext = url.substring(url.lastIndexOf('.'), url.length);
loadRequestData.media.contentType = 'video/mp4';
if (ext.includes('mpd')) {
loadRequestData.media.contentType = 'application/dash+xml';
} else if (ext.includes('m3u8')) {
loadRequestData.media.contentType = 'application/vnd.apple.mpegurl';
// TODO: Create option to set hlsSegmentFormat option.
loadRequestData.media.hlsSegmentFormat = cast.framework.messages.HlsSegmentFormat.TS;
} else if (ext.includes('ism')) {
loadRequestData.media.contentType = 'application/vnd.ms-sstr+xml';
}
if (loadRequestData.media.customData && loadRequestData.media.customData.drm) {
playerManager.setMediaPlaybackInfoHandler((loadRequest, playbackConfigData) => {
playbackConfigData.licenseUrl = loadRequest.media.customData.drm.widevine.url;
playbackConfigData.protectionSystem = cast.framework.ContentProtection.WIDEVINE;
castDebugLogger.info('PlaybackConfig Data - ', JSON.stringify(playbackConfigData));
return playbackConfigData;
});
}
return loadRequestData;
});
options.playbackConfig = playbackConfig;
context.start(options);
</script>
The author of this article uses singletons for the service layer in this example Node api:
https://html5hive.org/how-to-create-rest-api-with-node-js-and-express/
He states, "We only want there to ever be one instance of our player service, so instead of exporting the class itself, we’ll export a new instance of it. Module files in node are only ever executed once, so this effectively gives us a singleton."
'use strict';
var uuid = require('node-uuid');
class PlayersService {
constructor() {
this.players = [];
}
getPlayers() {
return this.players;
}
getSinglePlayer(playerId) {
var player = this.players.filter(p => p.id === playerId)[0];
return player || null;
}
addPlayer(info) {
// prevent a bit of bad/duplicate data
if (!info || this.players.filter(p => (p.firstName === info.firstName && p.lastName === info.lastName)).length > 0) {
return false;
}
info.id = uuid.v4();
this.players.push(info);
return true;
}
updatePlayer(playerId, info) {
var player = this.getSinglePlayer(playerId);
if (player) {
player.firstName = info.firstName ? info.firstName : player.firstName;
player.lastName = info.lastName ? info.lastName : player.lastName;
player.displayName = info.displayName ? info.displayName : player.displayName;
return true;
}
return false;
}
}
module.exports = new PlayersService();
Which seems reasonable since the function of these services is to provide the same implementation for the controllers that use them.
However, in this post:
On Design Patterns: When to use the Singleton?
the poster asks for a legitimate use case for singletons other than a Logger class. Several people responded to his question by saying that singletons should never be used.
But isn't the use of singletons for services like the one I've copied here a legitimate use case and a best practice so that you are not creating multiple instances that provide the same implementation? Thanks.
I have a menu and some menu items.when I clcik to menu item I create new panle codebehind and add it to main tabpanel.so far so good ,but it seems for every click on the menu,panel created from the begining,plus,change place of the the tabs.how can I solve this.
here is the my Index.cshtml
<body>
#Html.X().ResourceManager()
#(
Html.X().Viewport()
.Layout(LayoutType.Border)
.Items(
Html.X().Panel()
.Region(Region.West)
.Title("main menu")
.Width(200)
.Collapsible(true)
.Split(true)
.MinWidth(175)
.MaxWidth(400)
.MarginSpec("5 0 5 5")
.Layout(LayoutType.Accordion)
.Items(
Html.X().MenuPanel()
.Collapsed(true)
.Icon(Icon.Note)
.AutoScroll(true)
.Title("menu")
.ID("PNL34")
.BodyPadding(0)
.Menu(menu => {
menu.Items.Add(Html.X().MenuItem().ID("1a").Text("test1").Icon(Icon.Anchor)
.DirectEvents(m => { m.Click.Url = "Desktop/AddTab";
m.Click.ExtraParams.Add(new { conid = "TabPanel1" ,pnlid="tabpnl10",viewname="Urunler"});
}));
menu.Items.Add(Html.X().MenuItem().ID("2a").Text("test2").Icon(Icon.Anchor)
.DirectEvents(m =>
{
m.Click.Url = "Desktop/AddTab";
m.Click.ExtraParams.Add(new { conid = "TabPanel1", pnlid = "tabpnl11", viewname = "Siparisler" });
}));
})
)
,
Html.X().TabPanel()
.ID("TabPanel1")
.Region(Region.Center)
.Title("E-TICARET")
.MarginSpec("5 5 5 0")
))
and codebehind controller
public ActionResult AddTab(string conid,string pnlid,string viewname)
{
var cmp = this.GetCmp<Panel>(pnlid);
var cmp2 = this.GetCmp<TabPanel>(conid);
if (cmp.ActiveIndex==-1)
{
var result = new Ext.Net.MVC.PartialViewResult
{
ViewName = viewname,
ContainerId = conid,
RenderMode = RenderMode.AddTo,
WrapByScriptTag = false
};
cmp2.SetActiveTab(pnlid);
return result;
}
else
{
return null;
}
}
This is not going to work.
if (cmp.ActiveIndex == -1)
In WebForms it is retrieved from the Post data. There is no a WebForms-like Post in MVC. You should send all the required information with a request.
Also if you don't need a tab to be rendered if it is already exists, just stop a request. You can determine on client if a tab is already there or not.
I have been dropped into a sharepoint 2007 project, and i have relatively little experience with altering existing webparts.
My first task is to add a filter to two out of three columns in a list view. My Lead Dev suggests trying to add a jquery combo-box filter, and another dev suggests extending the web part and overriding some of the functionality.
What i think is a good option is to change the context menu for the list view headers, so that instead of "Show Filter Choices" bringing up a standard dropdownlist that only responds to the first letter, it would have a jquery combobox. And maybe if the business requests it, change the wording of that option.
My question to you is, what would be a good path to take on this? Also, what resources are there besides traipsing around books and blogs are there to guide an sp newbie to do this?
Thanks.
How about something like this:
<script src="http://www.google.com/jsapi"></script>
<script>
google.load("jquery", "1.2.6");
google.setOnLoadCallback(function() {
$(document).ready(function()
{
jQuery.extend(jQuery.expr[':'], {
containsIgnoreCase: "(a.textContent||a.innerText||jQuery(a).text()||'').toLowerCase().indexOf((m[3]||'').toLowerCase())>=0"
});
$("table.ms-listviewtable tr.ms-viewheadertr").each(function()
{
if($("td.ms-vh-group", this).size() > 0)
{
return;
}
var tdset = "";
var colIndex = 0;
$(this).children("th,td").each(function()
{
if($(this).hasClass("ms-vh-icon"))
{
// attachment
tdset += "<td></td>";
}
else
{
// filterable
tdset += "<td><input type='text' class='vossers-filterfield' filtercolindex='" + colIndex + "' /></td>";
}
colIndex++;
});
var tr = "<tr class='vossers-filterrow'>" + tdset + "</tr>";
$(tr).insertAfter(this);
});
$("input.vossers-filterfield")
.css("border", "1px solid #7f9db9")
.css("width", "100%")
.css("margin", "2px")
.css("padding", "2px")
.keyup(function()
{
var inputClosure = this;
if(window.VossersFilterTimeoutHandle)
{
clearTimeout(window.VossersFilterTimeoutHandle);
}
window.VossersFilterTimeoutHandle = setTimeout(function()
{
var filterValues = new Array();
$("input.vossers-filterfield", $(inputClosure).parents("tr:first")).each(function()
{
if($(this).val() != "")
{
filterValues[$(this).attr("filtercolindex")] = $(this).val();
}
});
$(inputClosure).parents("tr.vossers-filterrow").nextAll("tr").each(function()
{
var mismatch = false;
$(this).children("td").each(function(colIndex)
{
if(mismatch) return;
if(filterValues[colIndex])
{
var val = filterValues[colIndex];
// replace double quote character with 2 instances of itself
val = val.replace(/"/g, String.fromCharCode(34) + String.fromCharCode(34));
if($(this).is(":not(:containsIgnoreCase('" + val + "'))"))
{
mismatch = true;
}
}
});
if(mismatch)
{
$(this).hide();
}
else
{
$(this).show();
}
});
}, 250);
});
});
});
It will need to be added to the page via a content editor web part.
I'm playing with MonoTouch.Dialog and written some code to show some tweets. The problem is that the table cells are too small and the cells are all bunched up when I load the StyledMultilineElements asynchronously. They look absolutely perfect when I load them synchronously (i.e. without the QueueUserWorkItem/InvokeOnMainThread part)
Is there a way of getting the table cells to recalculate their height?
// This method is invoked when the application has loaded its UI and its ready to run
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
window.AddSubview(navigation.View);
var tweetsSection = new Section("MonoTouch Tweets"){
new StringElement("Loading...") //placeholder
};
var menu = new RootElement("Demos"){
tweetsSection,
};
var dv = new DialogViewController(menu) { Autorotate = true };
navigation.PushViewController(dv, true);
window.MakeKeyAndVisible();
// Load tweets async
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = true;
ThreadPool.QueueUserWorkItem(delegate {
var doc = XDocument.Load("http://search.twitter.com/search.atom?q=%23MonoTouch");
var atom = (XNamespace)"http://www.w3.org/2005/Atom";
var tweets =
from node in doc.Root.Descendants(atom + "entry")
select new {
Author = node.Element(atom + "author").Element(atom + "name").Value,
Text = node.Element(atom + "title").Value
};
var newElements =
from tweet in tweets
select new StyledMultilineElement(
tweet.Author,
tweet.Text);
InvokeOnMainThread(delegate {
UIApplication.SharedApplication.NetworkActivityIndicatorVisible = false;
tweetsSection.Remove(0);
tweetsSection.Add(newElements.Cast<Element>().ToList());
});
});
return true;
}
Try setting the UnevenRows property on your top level Root element of your Dialog View Controller, in this case "menu":
menu.UnevenRows = true