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

Question

我有A - ＆gt; B - ＆gt; C控制器，与下一个代表链接：

@protocol ViewControllerDelegate <NSObject>

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

@end

在C中我打电话：

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

比我进入B：

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

为什么在委托回调中第二次不调用[self.navigationController popViewControllerAnimated：YES]？

Answer 1

如果你想去A：

popToRootViewControllerAnimated:

如果您有超过3个视图控制器A-> B-＆gt; C-＆gt; D并且您想要从D到B，则可以选择其他选项。

- popToViewController:animated:

请参阅UINavigationController Class Reference