objective-c

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Why is it that sending any selector to a Nil object does nothing, but sending an "invalid" selector to any NSObject raises an exception?
user_14179220
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13
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2879
objective-c
Perform UI Changes on main thread using dispatch_async or performSelectorOnMainThread?
user_11045630
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14
1
27806
nsthread grand-central-dispatch asynchronous objective-c ios
How are the digits in ObjC method type encoding calculated?
user_10374070
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12
3
1665
objective-c-runtime objective-c
Play Audio iOS Objective-C
user_9185260
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24
7
73279
audio xcode objective-c ios
how to open the url in safari not in webview
user_5783860
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22
10
53703
xcode objective-c ios
iCloud : how to manage iCloud deactivation?
user_4646100
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6
1
703
icloud objective-c iphone ios
How to get the largest value from NSArray containing dictionaries?
user_4422020
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9
2
5835
key-value-coding nsarray objective-c iphone cocoa-touch
NSCache is not evicting data
user_2964460
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11
3
9210
nscache objective-c iphone ios
stopping a block enumeration fo a NSDictionary
user_9572250
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14
2
5120
ipad objective-c iphone ios
Application windows are expected to have a root view controller at the end of application launch warning
user_3452820
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9
4
12130
ios5 uiviewcontroller objective-c ios
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