Tagged Questions

The system through which people interact with a computer. UI stands for User Interface. There's now a Stack Exchange site for UI, Interaction and User Experience design: ux.stackexchange.com

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Android animate() doesn't update the UI

I try to implement something like a SwipeListView on my own. Therefore, I have to animate the ListView items when interacting with them. I do so by using the ViewPropertyAnimator API when dragging the ...
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13 views

Timeseries GUI: button generates Type Error on comparision to a dataframe column

Objective: I am writing an application (using Tkinter, Python 3.0 - ubuntu). The event trigger is user input a float, user presses a button; then 'calculate' function compares a column from a ...
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1answer
20 views

R.java / Refresh / Clean not Updating Image

I have an image whose image was a very simple logo that served as sort of a placeholder image, and it displayed fine. However, now that I'm at the stage of pretty-fying the UI, I have a much nicer ...
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2 views

jQPlot force static minimum and maximum values on y-axis

I am using jqPlot to render bar charts and am looking to do something fairly straightforward but I am not sure if the library has an option for this. I have graphs like this one, where the maximum ...
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11 views

Qt Layouts causing loss of total pixels available

I am writing a program UI in Qt on Linux that runs on an 800x600 resolution display showing a 720x576 video stream from another input. I want to be able to display this video stream on the 800x600 ...
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1answer
28 views

Issue with Syntax in GUI

I have created my GUI I can show you where the execution syntax is suppose to go, I just want to test it to see if it works properly, can you please suggest How I may be able to execute a file or a ...
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0answers
25 views

Colored output in R console, esp. colored errors

colorout is no longer on CRAN. Is there another R package that provides similar functionality or at least a quick hack that shows errors in red? (I use R inside a Gnome Terminal on Ubuntu.) I am ...
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1answer
55 views

Use If-Else statement in SubmitListener

Trying to develop a GUI, but I've hit a snag: I am using a submit button, which will look at a txtEnter field. If the user types "yes" in the txtEnter field and clicks submit, it will execute a shell ...
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How do I clear all the Source (aka View) tabs in Rstudio?

I did a bad thing and ran View(row) 8000 times using apply. Now I have 8000 tabs in my Source pane (top left) in Rstudio. Does anyone know how to clear them all in one fell swoop? Otherwise I'm ...
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2answers
79 views

java - How many classes is too many? When is it appropriate to add new classes?

This is intended as a sort of general question, but I'll give you my specific problem first: I'm writing a GUI for my program at the moment for a program that will take the form of a frame with ...
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0answers
39 views

a c++ gui library which provides a toolkit rather than a framework [on hold]

I read a nice sentence on the documentation of Boost Asio Ease of use. The library should provide a lower entry barrier for new users by taking a toolkit, rather than framework, approach. That ...
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1answer
36 views

Free Windows Form Controls for c# [on hold]

I've to develop a Windows Form application in c#, but my customer hasn't the budget to buy DevEx or Telerik UI Control Licence, normally I use. Do we know if exist a free control library can ...
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2answers
42 views

Java Swing component does not repaint automatically

I am debugging a Java Swing application in which a component (in my case a JButton inside a JPanel inside a JPanel) does not get repainted automatically when it should. For example, when the window is ...
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0answers
17 views

How to implement snap points with an inertia-enabled control

I am currently in the process of implementing a custom slider control. The control can be operated with both a pointing device as well as a touch input device. To provide a consistent and familiar ...
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1answer
21 views

How facebook use same url for both login and after successfull login?

How actually facebook use same url for both login and after successfull login? On both page on login www.facebook.com and after login uses same url www.facebook.com

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