Question

ios的vc是不是页面跳转之后页面上的对象都会被释放

Answer 1

- (void)viewDidDisappear:(BOOL)animated {
//因为点击登录离开页面时
if (YES == _popAsLoginFlag) {
[self.navigationController popToRootViewControllerAnimated:NO];
}
}

- (void)loginButtonClicked:(id)sender {
HSLoginViewController *loginVC = [HSLoginViewControllernew];

// [self.navigationController pushViewController:loginVC animated:YES];

//原来是从这里（个人设置页）直接push到登录页，由于登录完成后要转到首页，所以这里先把tabbar跳到首页，从首页push到登录页，这样就可以从登录页轻松跳到主页了
self.tabBarController.selectedIndex = 0;
[[self.tabBarController.viewControllers objectAtIndex:0] pushViewController:loginVC animated:YES];

//标记一下，在这个页面消失时做相应处理
_popAsLoginFlag = YES;
}