osx yosemite - Backward compatibility of Xcode OSX -


how use features such viewdidload or appdidbecomeactive in xcode 4.6.1 osx 10.8, available osx 10.10 , above. please suggest alternative ways use these functions.

to expand on ken thomas's comment; code use:

- (void)loadview {     [super loadview];      // if we're running on 10.8 or older…     if (nsappkitversionnumber <= nsappkitversionnumber10_8) {         [self viewdidload]; // call viewdidload (added in 10.9)     } }  // // called loadview pre-10.9; directly otherwise // - (void)viewdidload {     // --- code here --- }   // viewdidload

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