我用代码做到这一点：
NSArray *viewControllersFromStack = [self.navigationController viewControllers];
NSMutableArray *viewControllersFromStackMutable = [NSMutableArray arrayWithArray:viewControllersFromStack];
NSMutableArray *viewControllersToRemove = [[NSMutableArray alloc]init];
for (UIViewController *currentVC in viewControllersFromStack)
{
if ([currentVC isKindOfClass:[TalksViewController class]])
{
[viewControllersToRemove addObject:currentVC];
if (viewControllersToRemove.count == 2)
{
UIViewController *oneVCtoRemove = [viewControllersToRemove objectAtIndex:0];
[viewControllersFromStackMutable removeObject:oneVCtoRemove];
[self.navigationController setViewControllers:viewControllersFromStackMutable];
}
}
}
问题是我在导航项目中引用了已删除的VC。如何解决？
当您想从导航堆栈中删除视图时，只需在导航栏上调用此方法即可从堆栈中弹出视图：
[self.navigationController popViewControllerAnimated:YES];
要弹出外部视图，请使用
for(UIViewController *currentVC in viewControllersFromStack)
{
if([currentVC isKindOfClass:[TalksViewController class]])
{
[currentVC.navigationController popViewControllerAnimated:YES];
}
}
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