use
[self.view endEditing:YES];
it will dismiss keypad
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Lazy Instantiation (initialisation ) , this technique is good if you have an object that only needs to be configured once and has some co...
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provides a mechanism for broadcasting information within a program, using notification we can send message to other object by adding obser...
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A selector is the name used to select a method to execute for an object, or the unique identifier that replaces the name when the source...
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Delegates are created using protocols. protocol is used the declare a set of methods that a class that "adopts" (declares that...
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reference:- http://www.techotopia.com/ iOS Architecture Application runs above the Cocoa Touch layer. Application can call an... -
There is no difference between both notification for the user both seems the same to him. Only change is user will be notified at ...
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When variable is marked with __block , the modifications done inside the block are also visible outside of it.
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Executes a block object once and only once for the lifetime of an application. This function is useful for initialization of global data...
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extern "C" void foo ( int ); extern "C" { void g ( char ); int i ; } When C++ compiler compiles th...
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View Controllers are the link between data and view(visual appearance). Whenever iOS displays anything on screen it is managed by the View...
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