Determine if the agent implements the Protocol method

1 // 3.1 Determine if the agent implements the Protocol method 2     if ([Self. Delegate respondstoselector: @selector (Tgfooterviewdiddownloadbuttonclick:)]) {3         [self.  Delegate  Tgfooterviewdiddownloadbuttonclick:self]; 4     }

// If a proxy uses a strong reference, a circular reference is generated, causing the controller and child views to be freed, causing a memory leak  IDdelegate;

1- (void) Tgfooterviewdiddownloadbuttonclick: (Hmtgfooterview *) Footerview2 {3     //get data load data on the simulated fetch network4NSLog (@"try to load data in ....");5     6Dispatch_after (Dispatch_time (Dispatch_time_now, (int64_t) (2.0* nsec_per_sec)), Dispatch_get_main_queue (), ^{7         //operations performed after obtaining network data8         9         //add data to the array to simulate the effect of the network after it is loadedTenNsdictionary *dict = @{@"title":@"haha",@"icon":@"ad_00",@" Price":@"100.2",@"Buycount":@" -"}; OneHmtg *TG =[Hmtg tgwithdict:dict]; A          -NSLog (@"add data before%lu", (unsignedLong) self.tgs.count); -          the [Self.tgs ADDOBJECT:TG]; -          -NSLog (@"add data after%lu", (unsignedLong) self.tgs.count); -         //Refresh Data +         //[Self.tableview Reloaddata]; -         //Create a new Indexpath +Nsindexpath *path = [Nsindexpath indexpathforrow: (Self.tgs.count-1) Insection:0]; A [Self.tableview Insertrowsatindexpaths:@[path] withrowanimation:uitableviewrowanimationmiddle]; at          -         //notifies the footer view to adjust the view display status - [Footerview Endrefresh]; -     }); -      -}

Determine if the agent implements the Protocol method