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How do you clear a Core Animation cache programmatically if any. With time, my app's performance gets very slow and the profile instrument tells me it's because of Core Animation. I was hoping if it will be possible to refresh core animation in my app from time to time.
I believe it is not a cache issue, even its if you mess up within this area you will have another issue, I suggest to run the profiler and check if you have a leak somewhere, make sure you are releasing all your ivars porperly, use
CGImageRelease(cgImage), CGPathRelease(path), ..etc
plus take a look here and here also
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I would like to replicate the default clock app in my app. Is there any way i can use the default app in my application or i should create a new one inside my app.I would be needing the world clock function in my app , What is the best method to implement it? Thanks in advance.
No, you cannot re-use the current 'World Clock' app within your own. You are going to have to replicate this functionality yourself.
CocoaControls does have a number of open source 'clock' controls that you might find useful.
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How do I send an array through the internet from an OSX computer to an IOS device, Sorry I don't know to much about Objective C I am planning on creation an application and I haven't yet started creating it.
Thanks
What you basically want to do is use your OS X as a server. and then download information from there. If you are new to Objective-C I would recommend you read some tutorials before you get started.
Here you can find some general iOS tutorials: http://www.raywenderlich.com/tutorials
Here you can find one on NSURLSession (connecting to servers): http://www.raywenderlich.com/51127/nsurlsession-tutorial
Do some research before starting, or else it will probably result in a bad architected code. There also are several Stack Overflow questions with good references.
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I am looking for a simple piece of sample code that shows a UIActivityIndicator view that runs while something is being downloaded from the net. It can be anything, the simpler the better.
Can someone help me out?
You have two different problems here:
How to use a UIActivityIndicator
Download something (asynchronuously) from the net.
These are two completely separate problems, and there are plenty of sample code for each of them (for the second one, have a look at AFNetworking framework -- everyone uses it).
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I have an NSMutableArray of data that i would like to present in a view,
how might someone go about doing this?
i have seen that the best way to present Array data is by displaying it onto a table, but cannot find anything that can help someone using Xcode 3.2.6, as it lacks some of the functionality that later versions have.
Any ideas?
Yes, the best way is to use a UITableView.
Have a look to this tutorial
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I'm trying to create an app in which i have information set up with-in the app and when the user searches for the information it displays it on the screen. So for example say you search for "Hamburger" in the app; the app looks into it's information and displays it.
Can anyone explain to me how to go about doing this or at least point me to a source that can.
Thanks
The built in framework for doing this would be UISearchBar and UISearchDisplayController. There are many tutorials our there to get you started for using these controllers (here, here and here).
Of course there are many custom ways to accomplish the same tasks, but this would be a good place to start if you are just getting started.