iOS Delegate not called -

for project need able send status "secondtableviewcontroller" "firsttableviewcontroller". followed tutorials on delegates don't seem work. when want call method in firsttableviewcontroller secondtableviewcontroller check see if "delegate" property empty, , every time is..

this code:

secondtableviewcontroller.h

@protocol sendstatusdelegate <nsobject> @required -(void)didstatuschanged;  @end // eof delegate protocol  @interface secondtableviewcontroller : uitableviewcontroller  @property (nonatomic, assign) id<sendstatusdelegate> delegate;  @end 

secondtableviewcontroller.m

// status changed on row click - (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath {     if (self.delegate) { // never called because delegate looks remain empty         [self.delegate didstatuschanged];     } } 

firsttableviewcontroller.h

@interface firsttableviewcontroller : uitableviewcontroller <sendstatusdelegate>  @end 

firsttableviewcontroller.m

the thing goes on here implementing -(void)didstatuschanged method.

first need set delegate self in firsttableviewcontroller when init secondtableviewcontroller. on didselectrowatindexpath: calling secondtableviewcontroller in case,

firsttableviewcontroller.m  // status changed on row click - (void)tableview:(uitableview *)tableview didselectrowatindexpath:(nsindexpath *)indexpath {     secondtableviewcontroller *secondtablevc = [secondtableviewcontroller alloc] init];     secondtablevc.delegate = self;  }