iOS开发中,在没有用到navigationController情况下,页面跳转多用present,但它并没有一个类似popToRootViewControllerAnimated的方法可以直接回到根控制器,下面给出三个方法:
方法一:循环获取到最底层控制器,然后dismiss掉,直接返回到跟控制器
- (void)logoutBtnOnClick
{
UIViewController *vc = self.presentingViewController;
if (!vc.presentingViewController) return;
while (vc.presentingViewController) {
vc = vc.presentingViewController;
}
[vc dismissViewControllerAnimated:YES completion:nil];
}
方法二:在方法一种稍作修改,通过判断直接dismiss到目标控制器
- (void)logoutBtnOnClick
{
TargetVC *target = [[TargeVC alloc] init];
UIViewController *vc = self.presentingViewController;
if (!vc.presentingViewController) return;
while (![vc isKindOfClass:[target class]]) {
vc = vc.presentingViewController;
}
[vc dismissViewControllerAnimated:YES completion:nil];
}
if ([self respondsToSelector:@selector(presentingViewController)]) {
[self.presentingViewController.presentingViewController dismissViewControllerAnimated:YES completion:nil];
}