28 сент. 2012 г. · As for C variables, any variable defined outside @interface X{} or @implementation X{} is a C variable with file scope and static storage. I ...

7 мар. 2017 г. · There is no one-fits-all answer here: when you declare your block variable as id you no longer have compile-time information associated with ...

3 апр. 2010 г. · The latter is not defining an instance variable. Rather, it is defining a global variable in the .m file. Such a variable is not unique to ...

7 июл. 2013 г. · To make instance variables public, use @public keyword, like this: @interface PatientIDButton : UIButton { // we need 'class' level variables @public ...

12 авг. 2014 г. · A truly global variable would be defined as int globalVariableTest in the .m file, and declared as extern int globalVariableTest in the .h file.

6 мая 2018 г. · Objective-C: Assigning local variable to instance variable · Get input from console and assign it to local variable xyz · Assign xyz to instance ...

10 мая 2012 г. · This is not a "global" variable. It is a variable which will be available as an instance member variable of HelloWorldLayer objects only.

5 апр. 2012 г. · Instance variables of Objective-C objects are always set to 0 (or nil) when you allocate an object. Statics are set to 0.

17 июн. 2016 г. · I want to do is pass the parameters in the my methods (include format and ... ) to a method like this: - (void)formatThings:(NSString *)format, ... { // analysis ...

24 янв. 2017 г. · _variable is direct access. self.variable invokes -variable, which is automatically synthesized by the compiler. The former does not trigger KVO when the value ...