0
我有一個編程創建的導航控制器來處理UISegmentedControl視圖之間的切換。 (稱爲段導航控制器)帶底部工具欄的UINavigation控制器在視圖開關上丟失UIBarButtonItems
導航控制器有一個底部工具欄,並帶有一些UIBarButtonItems,這些UIBarButtonItems也是以編程方式添加的。爲了處理我有下面的代碼段開關:
- (void)indexDidChangeForSegmentedControl:(UISegmentedControl *) aSegmentedControl {
NSUInteger index = aSegmentedControl.selectedSegmentIndex;
if(index == 0) {
OneViewController *oneViewController = nil;
if((oneViewController = [self.viewControllers objectForKey:@"one"]) == nil) {
oneViewController = [[OneViewController alloc] init];
[self.viewControllers setObject:oneViewController forKey:@"one"];
[oneViewController release];
}
NSArray *theViewControllers = [NSArray arrayWithObject:oneViewController];
[self.segmentsNavigationController setViewControllers:theViewControllers animated:YES];
}
else if(index == 1) {
TwoViewController *twoViewController = nil;
if((twoViewController = [self.viewControllers objectForKey:@"two"]) == nil) {
twoViewController = [[RelatedArticlesViewController alloc] init];
[self.viewControllers setObject:twoViewController forKey:@"two"];
twoViewController.hidesBottomBarWhenPushed = YES;
[twoViewController release];
}
NSArray *theViewControllers = [NSArray arrayWithObject:twoViewController];
[self.segmentsNavigationController setViewControllers:theViewControllers animated:YES];
}
}
所以,最終,當我從一個視圖切換到另一個和背部都是我UIBarButtons在導航控制器的底部欄迷路了。這是爲什麼?難道我做錯了什麼?