as title says i'm having issue taking objects out of array, flipping them, , putting them in. below code have ends in error
terminating app due uncaught exception 'nsinvalidargumentexception', reason: '-[__nsarrayi removeobjectsatindexes:]: unrecognized selector sent instance
i wondering if knew how fix this? here's little more info on how have set up:
the object "peg" nsstring displays "-0.6", "4.36"
globalsortedarray array filled dictionary containing peg object
//declare variables nsmutablearray *negarray = [[nsmutablearray alloc]init]; nsmutableindexset *index = [[nsmutableindexset alloc]init]; int negcount = 0; nsdictionary *forloopdict; (forloopdict in globalsortedarray) { if ([[forloopdict objectforkey:@"peg"] hasprefix:@"-"]) { [index addindex:negcount]; } negcount++; } nslog(@"%@", negarray); // removes objects main array. seems messing up. [globalsortedarray removeobjectsatindexes:index]; // reverses array nsarray* reversedarray = [[negarray reverseobjectenumerator] allobjects]; // insters them main array [globalsortedarray insertobjects:negarray atindexes:0];
you trying remove item globalsortedarray. nsarray , not mutable.
