I'm sure I must be asking the wrong questions in Google because I just cannot find what I'm looking for here. I have no code to show because I don't know where to begin with this one. I have a USB NES controller I wish to use with a Spritekit game I've recently finished. However I have no idea how to add gamepad support to my program. I'm not really looking to add custom user defined keys as such, I just want to be able to get the keycodes from the controller I have. How do I go about getting this to work?
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Its the first time when I work with voice over on objective c. i'm trying to make some simple app for blind community.
tell me necessary classes and methods to work with voice?
what should my application to except play and pause voice?
please show me main protocols and methods with examples.
Full tutorial will be appreciated :-)
video will be perfect
You just need to make the elements in your app accessible in the accessibility tree. By default they are all set to YES, so all the elements are ready by voice over. You don't have to write any code for that.
However you need to write code to post accessibility notifications, and to make some elements not read by voice over.
You can change the voice over settings in the device accessibility settings.
Please read the Apple's Documentation regarding the UIAccessibility.
Ok so this question is actually in two parts.
I coded a video filter for VLC and I would like to add a control to the Video Effects panel on the OS X UI. So far I've been able to link my plugin the the UI by hijacking one of the existing controls, but this isn't ideal.
Now, if I open up the Xcode project (I'm running Xcode 6.3.1) and try to open the VideoEffect.xib file, I get the following error:
I tried to google this but it sounds like the only alternative would be to play archaeologist and dig up an old copy of Xcode 3. Is there any other way to be able to open this file and edit it somehow? I tried to look at the XML code but if I started to change that I'd do more damage than good.
The second thing I'd like to do is sending back values from the effect module to the UI. At the moment (by hijacking one of the existing sliders), all I can do is read a value from the panel with
config_ChainParse(p_filter, FILTER_PREFIX, ppsz_filter_options, p_filter->p_cfg);
p_filter->p_sys->i_factor = var_CreateGetIntegerCommand(p_filter, FILTER_PREFIX "factor");
and then, inside the callback function:
p_sys->i_factor = VLC_CLIP( newval.i_int, 0, 255 );
However, I haven't been able to write back the value. I'd like the filter to set p_sys->i_factor to a random value at start. This works (using var_SetInteger()), but it isn't reflected in the position of the slider in the Video Effect panel. I suspect I need to hack a bit deeper for that. Any ideas?
Regarding your first question with the xib-file. Consider downloading and using our forthcoming 3.0 code from git://git.videolan.org/vlc.git - it allows editing of said file without Xcode 3.
Regarding your second question, why would you want your video filter to interfere with the UI? This is not how the architecture of VLC works and there is no correct way to do it at this point. You would need to edit the core to do another global variable callback to ask the UI to reload the presented filter configuration.
Perhaps, if you give details about what your filter does and what you want to achieve, we find a more supported way :)
I am trying to create an interface that is similar to the interface on this website for the skill tree: http://www.pathofexile.com/passive-skill-tree. What is the best way to go about doing this and have the same or similar user interaction. ie. you click on a node and it activate or deactivates it. The movement of the tree and zooming on it would be nice as well. Would like to try to stay away from webView as I am thinking about features I want to add. Thanks in advance just want to see what a good way to do this is.
you can use webView and have almost a copy-paste of the presented webpage html source and load it.
However with native components you can have better performance, but it will "not a copy"
Native componets:
IIViewDeckController for iOS
iHasApp for iOS
iHasApp for iOS
There are more on that side. Consider a combination of they,
I need to build an app such as "Messages" in iPhone, but easier (don't need to send messages to server, only in datebase). I was faced with some questions.
http://www.ibm.com/developerworks/library/x-ioschat/index.html
In this tutorial messages look like TableView, how can I do them such as in iPhone standard messanger (comics speach). And how can I implement bar with camera button, text box and send button (what class is responsible for this)?
You are in luck good sir, there is already a class that can fix you up with this and avoid all the work, it's called AcaniChat (screenshot provided). Or you can even see at Sam Soffle's SSMessagesViewController, he is a well known iOS developer who built this class.
It will definitely help you, if you want to mimic that behavior.
I've been programming for a while, but just recently decided to start developing for Mac OS X. I feel like I've come to grips with the basics of Objective-C and Cocoa development over the past week. I'm planning on making graphics apps, and as such am currently in the process of learning how to control Quartz compositions through a Cocoa app. I went through the tutorial that apple offers (with the Mac Engravings composition), and was able to create that just fine. In order to make sure that I truly understood what I learned, I decided to create my own composition and link it to a slightly more complicated Cocoa application.
Essentially, I have a composition that loads a movie or image through a Movie Loader patch, at which point it applies various filters to the frames before outputting it. In my Cocoa app, I've written code (or rather copied and pasted from other apple examples) that lets a user pick a file using an NSOpenPanel object. The filepath of the file they pick gets placed in a text-box that I placed in the app's window using Interface Builder. I binded the value of said text-box to the "Movie_Location" key in my composition, which is a published input in the Movie Loader patch that I'm using. However, no matter what I do, movies and images aren't loaded into this composition no matter what I try. The only thing that gets displayed is the default image that I have saved in that input from Quartz Composer (or nothing if I leave it blank before publishing).
I've added a Clear Color patch to the composition and binded that to a colorwell in my UI, and that successfully changes the color in my display, so I know that the composition and my Cocoa app are communicating. I've spent numerous hours at this point trying to figure out what's going on, and I've just about given up. Does the Movie Loader have any weird behaviors that I'm not aware of, or is there something obvious that I seem to be missing? I'd really appreciate any help or advice from anybody.
Thanks for reading through this...
Best,
Sami
There are two things I can think of as reasons why it is doing this:
The file path isn't formatted incorrectly. Try checking backslashes, colons, etc.
The box isn't updating the value. Try literally clicking in the text field and hitting enter.
That's all I can think of without seeing your quartz composition and/or code.
EDIT:
Check the other continuous box, in the general properties.
I figured this out yesterday. spudwaffle's second idea is what was going on. If I were to type a filepath in and hit enter, it would work just fine. I got this to work properly by just removing the bind and instead using the setValue:keyInPath: function that a patch controller offers. That said, is there some way to force a text-box to update? I remember seeing a "continuously update" or something like that button within the bind sub-menu in the inspector, but my code didn't work with that checked either.
Thanks to those of you that tried to help me! I really appreciate it.
Best,
Sami