I would like to display some info on the screen ... which will disappear.
Example : an Uiview is displayed for the first time to an user (or feature never used by the user). I would like to display on a screen a label or an image to explain how to use this new feature. After that it will disappear ...
If this functionality has already been used by the user, the message is ofcourse not displayed.
example of message --> to add a gamer, press +
How to do that ? a lot of apps have this kind of help.
thanks
What you have to do is actually very simple : have a persistent variable, and change its value. Each time the user could see the help popup, you check the value of the variable you stored persistently. If this variable indicates that the user have already seen the help, you don't display it again. Otherwise, you show it. Simple example:
let helpSeen: Bool = getVarFromPersistent()
if helpSeen == false {
// DISPLAY THE HELP MESSAGE OR POPUP
setHelpSeenVar(true)
}
Where getVarFromPersistent() and setHelpSeenVar() are function you could create to respectively retrieve the variable from the persistent data and set the variable in the persistent data.
Now, you have to figure out how to use persistent data. You can have a look at CoreData, that is provided by Apple and "ready to use" in Xcode. You've probably already seen the use core data tickbox when you create a project.
Third party libraries exists as well like RealmSwift, who reached version 1.0 recently.
I'm not an expert, but I think Realm is simpler to use than Core Data. The technology used by the two libraries could be different though, maybe someone else could tell you more about it. Anyway, you will find a lot of article about Realm and Core Data on Google.
Related
I'm having trouble with CodeMirror. I'm trying to add in live number scrubbing, similar to Brett Victor's example, and Khan Academy's capability, but I am not having too much luck.
I can't post links, but I found this library which kind of gets the job done (made by user FWeinb on GitHub) which can kind of accomplish what I'm looking for, but I've noticed that although the numbers appear to have been changed, as soon as I do something like press enter in CodeMirror, then the value of the variable resets to what it was originally.
I'm using ReactJS, and I am not too sure how to fix this. I'm trying something a little ludicrous by calling this.replaceRange every time the contents are being changed, but there must be a better way. Here is a snippet of my code. It's not what I want it to be ideally, but just for testing purposes:
this.cm.on('dblclick', this.handleDblClick.bind(this))
...
handleDblClick() {
let matches = document.querySelectorAll(".cm-number");
let scrub = new Scrubbing (matches[0],
{ driver :
[
Scrubbing.driver.Mouse,
Scrubbing.driver.MouseWheel,
Scrubbing.driver.Touch
]
})
matches[0].addEventListener('DOMSubtreeModified', () => {
//console.log('change detected')
})
}
So I know that currently the scrubber edits this: <span class="cm-number"></span>, but that the actual underlying data isn't updating with the scrubber, nor is it persisting. Can anyone shed some light on what I should be doing here so that the value of the variable within the editor is updating live with the scrubber, and so that the value persists upon a new action?
I have a login validation where the users will enter their identity card number in unity. In the database, the identity card number is linked to several information. What I want to do is to create a session in the login page where the identity card number will be stored in a string or object and it can be retrieved in another page to call out for the information in the database. However, I have been looking around for solutions that would be able to work on the unity engine but unable to find any. Would be great is anyone can help me with this, thanks!
Few options to access variables across multiple scenes:
Use static variables, they keep values between scenes : (basic example) http://answers.unity3d.com/questions/41891/static-variables-between-scenes.html
Look up singletons : http://wiki.unity3d.com/index.php/Singleton (bit complex example, there are simpler ones in unity forums.. Looks like that Toolbox global variable is similar : http://wiki.unity3d.com/index.php/Toolbox )
(Simple solution) Save&Load values with PlayerPrefs : http://docs.unity3d.com/ScriptReference/PlayerPrefs.html
Set your script as DontDestroyOnLoad, so it doesnt get deleted when going to another scene : http://docs.unity3d.com/ScriptReference/Object.DontDestroyOnLoad.html (but be careful when entering the same scene, your object gets instantiated again if you dont check it)
Does anyone knows if the google folder id changes over time? Assuming, obviously, the folder is not deleted and recreated.
I'm trying to be limit the quota usage as much as possible, by storing the ID on our side.
Thanks
UPDATE (2015/09/01) Per 'BSEs' comment below.
Sorry, I assumed it is Android (being professionally distorted).
Anyway, to make sure, look at the ID string in question and compare it with the ID you get from drive.google.com > right click > Get link. You should see something like:
https://drive.google.com/open?id=0B1mqwertyasdfghZxCvbItM0E
If the id= string matches your resource ID, you're cool. Sorry for the confusion.
ORIGINAL (incorrect for .NET, applies to GooPlaySvcs/GDAA on Android)
I believe it does.
When testing the ResourceId availability here, I remember getting DriveId in one form immediately in the 'onResult()' callback. Later, when the 'onCompletion()' event occured, the DriveId of the same object looked very different (applies to both file and folder) .
Also, look at Daniel's comment here, it suggests that you should not rely on the value of the DriveId in any moment and use 'equals()'.
The ResourceId would be more appropriate ID to store, shuttle around, etc... DriveId is useless outside the GooPlaySvcs instance. And, based on some hints from Drive-Involved-Googlers, relying on a concrete value of DriveId is dangerous. That makes existence of 'encodeToString() / decodeFromString()' somewhat questionable, right?
Good Luck
I have several Birt Reports that I am trying to set up to run on a cron job that will email pdfs of the reports every morning. Everything is working fine as far as the generation and emailing goes; the only issue I am stuck with is this: if there is nothing to report, a pdf with just the report title is generated and emailed (a blank report, basically). I'd like to stop this report from being generated at all, so i can skip the emailing, if the pdf file does not exist.
I have been all over Google for two days now, and the closest I can find is this: http://www.eclipse.org/forums/index.php/t/458779/ in which someone was trying to solve a similar problem and received a push in the right direction, but not a complete solution.
It appears as if this can be done during the beforerender script... but how?
I know I need to:
set a persistent global variable in the oncreate if there is indeed data to report.
get the persistent global variable in the beforerender script.
send the magic don't generate report command.
I'm doing all of generating and emailing from a php script, not Java, so I can't send commands like IEngineTask.cancel() (or can I???)
Yes, I know I can make a row in the report that says "No data to report", but that's not what my users want.
And yes, I could query the database outside of the report to determine if there is valid data to report or not, but i'd prefer not to.
And maybe I could even open and read the pdf, programmatically to see if there is anything there, but that sounds like more of a hassle than it's worth...
So, how do I do this?
Thanks.
My answer is a little bit late, but I'm doing it like this in a framework that is working for hundreds of reports, probably it could be simplified for a single report:
Note that all the code is written from memory (not copied from our framework), so maybe it contains some errors.
Add an external Javascript file myframework.js to your report.
In this file, define an object myframework like this:
if (myframework == undefined) {
myframework = {
dataFound: false,
afterReport: function() {
// Write it to the appContext.
// Using Java, you could read it after the
// runAndRenderTask is done.
reportContext.getAppContext().put("dataFound", this.dataFound);
// But since you probably cannot the context
// (don't like coding Java?), the report has to
// tell it to he world some other way...
var txt = "dataFound=" + (dataFound? "true": "false");
var fw = new java.io.FileWriter("c:\\reportcontext.out");
fw.write(txt);
fw.close();
}
};
}
Add the JS file to your report's resources.
In your report, at a place where you decide that the report has found something (e.g. typically in a data set's onFetch event), tell the framework so by calling
myframework.dataFound = true;
In the reports's afterFactory or afterRender event, call
myframework.afterReport();
Then your report should create an output file c:\reportcontext.out which contains the information you need.
I need to retrieve a list of Active Directory users and their attributes using Delphi 2010.
I've seen a few similar questions on SO (e.g. Delphi - Find primary email address for an Active Directory user), but they all seem to require the user name before any additional information can be retrieved.
I had written an article for [The Delphi Magazine] way back when..... if you have access to a backlog of those magazines, it's in issue no. 62 (October 2000) - unfortunately, it seems those back issues aren't available for purchase anymore :-(
It's too long of an article and a code sample to post here.... basically it's about wrapping the IDirectorySearch interface in a nicer Delphi-like shell. You pass in a base container where to search, you define an LDAP filter, and you define a set of attributes you're interested in - then you search and get back basically an enumerator for the results, which you can get one by one.
In the end, I discovered TJvObjectPickerDialog, part of JVCL. It wraps the Windows Select Object dialog and does everything I need with very little coding. Just set the required properties and call execute. The selected user objects are returned along with the attributes that you set in the 'Attributes' property.