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What is the Swift equivalent of respondsToSelector?

... As mentioned, in Swift most of the time you can achieve what you need with the ? optional unwrapper operator. This allows you to call a method on an object if and only if the object exists (not nil) and the method is implemented. I...
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QuotaExceededError: Dom exception 22: An attempt was made to add something to storage that exceeded

Using LocalStorage on iPhone with iOS 7 throws this error. I've been looking around for a resolvant, but considering I'm not even browsing in private, nothing is relevant. ...
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java get file size efficiently

While googling, I see that using java.io.File#length() can be slow. FileChannel has a size() method that is available as well. ...
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UIRefreshControl without UITableViewController

Just curious, as it doesn't immediately seem possible, but is there a sneaky way to leverage the new iOS 6 UIRefreshControl class without using a UITableViewController subclass? ...
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How to get RGB values from UIColor?

... I posted some sample code in this question to get this working in non-RGB contexts: stackoverflow.com/questions/4700168/… – Jesse Rusak Jan 15 '11 at 15:28 ...
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How do you beta test an iphone app?

... From my experience, TestFlight is a much better solution than anything else out there. – Josh Brown Feb 2 '11 at 6:16 ...
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Load data from txt with pandas

I am loading a txt file containig a mix of float and string data. I want to store them in an array where I can access each element. Now I am just doing ...
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Xcode Product -> Archive disabled

I have been archiving for ad hoc distribution fine for many months and suddenly today I cannot do so as the Archive menu item is disabled. I have not changed anything. I went through the provisioning setup for the project and it looks ok. ...
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Could not launch process launch failed: timed out waiting for app to launch

... I had this problem when I used a Distribution certificate instead of Developer one when running the app from Xcode. You may check it out your target --> Build Settings --> Code signing. As @AndyDynn pointed out in his comment: Make sure you do this on the "Tar...
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ViewController respondsToSelector: message sent to deallocated instance (CRASH)

Ok, here is the deal, I hate putting out questions about my debugging and crashes. Because I usually handle them myself, but I just cannot get my way around this, even after viewing multiple questions already . ...