ios - UIPickerView data problems -

all,

i have external class file :

#import <foundation/foundation.h>  @interface globalvars : nsobject {     nsarray *alllocationsid;     nsarray *alllocationscity; }   @property(nonatomic, copy) nsarray *alllocationsid; @property(nonatomic, copy)  nsarray *alllocationscity;   @end 

and data , put in array :

globalvars *global = [[globalvars alloc] init];         global.alllocationsid = [[responseobject valueforkey:@"data"] valueforkey:@"id"];         global.alllocationscity = [[responseobject valueforkey:@"data"] valueforkey:@"name"];         nslog(@"%@", global.alllocationscity);         nslog(@"%@",global.alllocationsid);         nslog(@"%lu",(unsigned long)global.alllocationsid.count); 

that brings in correct amount of .count 14, gets data global class file.

but in numberofrowsincompent global.allocationsid.count brings in 0, no wonder why picker view doesn't show!

- (nsinteger)pickerview:(uipickerview *)pickerview numberofrowsincomponent:(nsinteger)component {       globalvars *global = [[globalvars alloc] init];     nslog(@"%lu",(unsigned long)global.alllocationsid.count);      nsinteger numrows = global.alllocationsid.count;      return numrows; 

any ideas ?

in numberofrowsincomponent should not allocate globalvars.

so in .h

globalvars *global; 

then in .m

global = [[globalvars alloc] init]; global.alllocationsid = [[responseobject valueforkey:@"data"] valueforkey:@"id"]; global.alllocationscity = [[responseobject valueforkey:@"data"] valueforkey:@"name"]; nslog(@"%@", global.alllocationscity); nslog(@"%@",global.alllocationsid); nslog(@"%lu",(unsigned long)global.alllocationsid.count); 

then in numberofrowincomponent

- (nsinteger)pickerview:(uipickerview *)pickerview numberofrowsincomponent:(nsinteger)component {      nslog(@"%lu",(unsigned long)global.alllocationsid.count);      nsinteger numrows = global.alllocationsid.count;      return numrows;  }