[self.navigationController popViewControllerAnimated：YES]; 在委托回调中不起作用

Question

我有A-> B-> C控制器，与下一个委托链接：

@protocol ViewControllerDelegate <NSObject>

- (void)onResult:(ControllerDelegateObject *)delegateObject;

@end

并在CI中致电：

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
    ControllerDelegateObject *object = [[ControllerDelegateObject alloc]init];
    object.model = indexPath.row;
    [delegate onResult:object];
    [ self.navigationController popViewControllerAnimated:YES ];
}

比我进去的B：

-(void)onResult:(ControllerDelegateObject *)delegateObject{
    delegateObject.brand = self.chosenBrand;
    [delegate onResult:delegateObject];
    [ self.navigationController popViewControllerAnimated:YES ]; **//doesn't work**
     NSLog(@"TEST2");
}

为什么[self.navigationController popViewControllerAnimated：YES]在委托回调中没有第二次被调用？

Answer 1

如果要转到A：

popToRootViewControllerAnimated:

如果您有3个以上的视图控制器A-> B-> C-> D，并且想要从D转到B，则可以选择另一种选择。

- popToViewController:animated:

请参阅UINavigationController类参考