How to create transparent notification window? - objective-c

I'm not sure of the correct name, but I am wondering how to create (in Objective-C) a transparent notification "window/panel", such as is shown when you change the volume intensity, or keyboard illumination, or display brightness. I want to put my own icon/text on it, for my own notification.
I don't know the words to Google for, so I'm asking here.
Thanks for any suggestions.

Matt Gemmell's RoundedFloatingPanel component on his sample code page may do just what you're looking for.

After looking into using the solutions provided by the other two given answers, I found that they would not work for my purposes. So, I wrote up my own library:
BHBezelNotification

Growl is a widely-used implementation of this. By default, it doesn't look exactly like the system overlays, though it is skinnable - you probably want the Bezel notification:
See the Growl Developer Documentation for more.

Related

Which NSView does Finder use to show files?

I want to show all the files in a folder as shown below(image):
Also, I would be really thank full if you could give me link of some tutorials to study the very view and how to use it.
Many Thanks in advance.
This is an NSBrowser. Read Apple's Browser Programming Topics for even more info. I think their browser may be customized to get the full behavior seen in the Finder.

Animation/Transition-Creator for iOS/Objective-C?

Together with an illustrator I want to create some screens with lots of animations/transitions (moving sprites). I need the illustrator to do the animation. He knows how to use AfterEffects so best would be some kind of timeline-tool to create the transitions/scalings/alphas etc.
My question is now: Is there some kind of tool out there that could be used to create animations and then export the used parameters to objective-c to import it to xcode?
Thanx!
To my knowledge: No.
We spend some time a couple of months back trying to find something similar to Expression blend, just for iOS, but without luck.
If you however are planing to make your app for MacOS and not iOS you can take a look at quartz composer. For iOS you could also take a look at storyboard (here is a link to fairly good tutorial), but I'm afraid your needs will not be met by the features of storyboard.
I found Flash2Cocos2D and I think this is the best solution available right now.
Also promissing: cocosbuilder!

Properties of iOS messenger

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.

how to make a 9*9 grid view in Objective C under Xcode 4.3?

i have searched Xcode controls but doesn't found anything that makes a GridView like the one in the lecture below so, how to make a one like that? thanks
As #Stephen pointed out, there's AQGridView, but here are a few others I've looked at, each offering some different functionality based on what you're looking for: GMGridView, NRGridView, MMGridView
There is no such component built in to iOS. So you'll either need to write your own or look for an open source version. I'm aware of AQGridView; I'm sure there are others.
iOS 6 has a UICollectionView that might work
https://developer.apple.com/library/ios/#documentation/UIKit/Reference/UICollectionView_class/Reference/Reference.html

Taking picture with QTCaptureView

Is it possible to simply take a picture and save it somewhere using a QTCaptureView and Apple's built-in iSight? I've seen lots of tutorials on recording video but none on simply taking a picture. Any help or guidance is appreciated!
Collin
You can do this with QTKit - the QTKit Application Programming Guide has a section for this titled, "Creating a Single-Frame Grabbing Application".
The better approach, however, is ImageKit's PictureTaker. It gives you the standard UI found in ImageBooth and other apps and is dead-simple to use in code.
I found the source of ImageSnap useful for understanding how to use QTKit to do this sort of thing. It is a simple command line application for taking pictures with the iSight camera.