I have two viewController (A,B), when I launch my app my root is a viewController A. He has an UitableView and an UITabBarController at the bottom. When I click in my UitableView I go to my viewController B.
My issue is that when I arrive in my viewController B, I have a black bar at the bottom of my view as if my UITabBarController stay, but I don't think it's that because I have the issue only on IOS 6.
And I don't want to see a UITabBarController in my viewController B, I want to have a simple view with a UiWebView but she doesn't go at the bottom.
In my viewController B in viewWillAppear I do [self._tabBarControllerArticle.tabBar setHidden:YES];
I have IOS 6/7 Deltas with Delta Y (20 or -20) with all components in my viewController B.
The result are good for IOS 7.
I don't know how can I resolve that.
When click on table cell call hideTabBar as given below
- (void)hideTabBar:(UITabBarController *) tabbarcontroller
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, 480, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 480)];
}
}
[UIView commitAnimations];
}
- (void)showTabBar:(UITabBarController *) tabbarcontroller
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
NSLog(#"%#", view);
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, 431, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 431)];
}
}
[UIView commitAnimations];
}
Show again when again come to the controller A again.
I am using this code to hide the TabBar:
self.tabBarController.tabBar.hidden=YES;
I am hiding tabBarController in my project.but it showing black bar in bottom of the view in Ios7.When i go back to the same view it is looking good.any help will be appreciated.
NOTE: It is solution for iOS6 and 7 only.
In iOS 7 to extend clickable area and hide black bar on place of hidden UITabBar you should enable 'Extend Edges - Under Opaque Bars' option for you UIViewController.
Or you can set this property programmatically:
[self setExtendedLayoutIncludesOpaqueBars:YES]
Here is example of code that hide or move TabBar for iOS 6/7:
UITabBarController *bar = [self tabBarController];
if ([self respondsToSelector:#selector(setExtendedLayoutIncludesOpaqueBars:)]) {
//iOS 7 - hide by property
NSLog(#"iOS 7");
[self setExtendedLayoutIncludesOpaqueBars:YES];
bar.tabBar.hidden = YES;
} else {
//iOS 6 - move TabBar off screen
NSLog(#"iOS 6");
CGRect screenRect = [[UIScreen mainScreen] bounds];
float height = screenRect.size.height;
[self moveTabBarToPosition:height];
}
//Moving the tab bar and its subviews offscreen so that top is at position y
-(void)moveTabBarToPosition:(int)y {
self.tabBarController.tabBar.frame = CGRectMake(self.tabBarController.tabBar.frame.origin.x, y, self.tabBarController.tabBar.frame.size.width, self.tabBarController.tabBar.frame.size.height);
for(UIView *view in self.tabBarController.view.subviews) {
if ([view isKindOfClass:[UITabBar class]]) {
[view setFrame:CGRectMake(view.frame.origin.x, y, view.frame.size.width, view.frame.size.height)];
} else {
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, y)];
view.backgroundColor = [UIColor blackColor];
}
}
}
Function to moving the Tab Bar offscreen got from this post.
Next code works for me
- (void)showTabBar {
[self.tabBar setTranslucent:NO];
[self.tabBar setHidden:NO];
}
- (void)hideTabBar {
[self.tabBar setTranslucent:YES];
[self.tabBar setHidden:YES];
}
Try this:
- (BOOL)hidesBottomBarWhenPushed {
return YES;
}
I had some trouble while using a UINavigationController:
Here's my solution that works for iOS 7 AND UINavigationControllers:
HeaderFile
#interface UITabBarController (HideTabBar)
- (void)setHideTabBar:(BOOL)hide animated:(BOOL)animated;
#end
Implementation
#import "UITabBarController+HideTabBar.h"
#implementation UITabBarController (HideTabBar)
- (void)setHideTabBar:(BOOL)hide animated:(BOOL)animated {
UIViewController *selectedViewController = self.selectedViewController;
/**
* If the selectedViewController is a UINavigationController, get the visibleViewController.
* - setEdgesForExtendedLayout won't work with the UINavigationBarController itself.
* - setExtendedLayoutIncludesOpaqueBars won't work with the UINavigationBarController itself.
*/
if ([selectedViewController isKindOfClass:[UINavigationController class]])
selectedViewController = ((UINavigationController *)selectedViewController).visibleViewController;
__weak __typeof(self) weakSelf = self;
void (^animations)(void) = ^{
selectedViewController.edgesForExtendedLayout = UIRectEdgeAll;
[selectedViewController setExtendedLayoutIncludesOpaqueBars:hide];
weakSelf.tabBar.hidden = hide;
/**
* Just in case we have a navigationController, call layoutSubviews in order to resize the selectedViewController
*/
[selectedViewController.navigationController.view layoutSubviews];
};
[UIView animateWithDuration:animated ? UINavigationControllerHideShowBarDuration : 0 animations:animations];
}
#end
Thanks to Vadim Trulyaev for pointing out the Extend Edges - Under Opaque Bars flag!
One line Swift 3 answer.
Put the following in your UIViewController subclass:
override var hidesBottomBarWhenPushed: Bool { get { return true } set { self.hidesBottomBarWhenPushed = newValue }}
Set true the property hidesBottomBarWhenPushed in the controller to hide.
For hide, all your controllers put into prepare for segue
override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
segue.destination.hidesBottomBarWhenPushed = true
}
To showTabbar:
- (void)showTabBar:(UITabBarController *) tabbarcontroller
{
//[UIView beginAnimations:nil context:NULL];
//[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, 521, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 521)];
}
}
// [UIView commitAnimations];
}
To hide Tabbar:
- (void)hideTabBar:(UITabBarController *) tabbarcontroller
{
//[UIView beginAnimations:nil context:NULL];
//[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, 568, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, 568)];
}
}
//[UIView commitAnimations];
}
I spent a long time battling this, trying to place a responsive button at the bottom of table view. I am not using auto-layout. I found two main differences between iOS 6 and 7:
On iOS7, when the tab bar is animated out, the view of the root view controller does not extend into the area where the tab bar was; it needs to be resized.
On iOS7, only the view of type UITabBar needs to be animated off and on the screen.
A further issue with point 1 is that if, in iOS7, you extend a child view of your visible view controllers main view over the space left behind by the tab view, it won't be interactable unless the main view is extended as well. With that in mind, I used the following code:
Hide tab bar (reverse the math so show it):
[UIView animateWithDuration:kHideTabBarAnimationDuration animations:^{
for(UIView *view in self.tabBarController.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y + view.frame.size.height, view.frame.size.width, view.frame.size.height)];
}
else
{
if (![MYDeviceUtility systemVersionGreaterThanOrEqualTo:#"7.0"])
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, view.frame.size.height + self.tabBarController.tabBar.frame.size.height)];
}
}
}
} completion:nil];
Adjust the main view when hiding tab bar:
// Expand view into the tab bar space
if ([MYDeviceUtility systemVersionGreaterThanOrEqualTo:#"7.0"])
{
CGRect frame = self.view.frame;
self.view.frame = CGRectMake(frame.origin.x,
frame.origin.y,
frame.size.width,
frame.size.height + tabBarHeight);
}
Adjust the main view when revealing tab bar:
[UIView animateWithDuration:kHideTabBarAnimationDuration delay:0.0f options:UIViewAnimationOptionCurveEaseIn animations:^{
// Create space for the tab bar
if ([MYDeviceUtility systemVersionGreaterThanOrEqualTo:#"7.0"])
{
CGRect frame = self.view.frame;
self.view.frame = CGRectMake(frame.origin.x,
frame.origin.y,
frame.size.width,
frame.size.height - tabBarHeight);
}
} completion:nil];
Note that I don't animate the main view expansion when hiding the tab bar, this looks natural since the expansion happens behind the tab bar.
Also note
In iOS 7, if you rotate from portrait to landscape while the tab bar is hidden, the black box reappears. I solved this by animating the tab bar back onto the screen before the rotation animation (which was good enough for what I'm working on).
Based on solution of #Vadim Trulyaev, i created a simple usage:
UITabBarController+HideTabBar.h
#interface UITabBarController (Additions)
- (void)setTabBarHidden:(BOOL)hidden myClass:(UIViewController *)myClass;
#end
UITabBarController+HideTabBar.m
#import "UITabBarController+HideTabBar.h"
#implementation UITabBarController (HideTabBar)
- (void)setTabBarHidden:(BOOL)hidden myClass:(UIViewController *)myClass{
if ([myClass respondsToSelector:#selector(setExtendedLayoutIncludesOpaqueBars:)]) {
//iOS 7 - hide by property
NSLog(#"iOS 7");
[myClass setExtendedLayoutIncludesOpaqueBars:hidden];
self.tabBar.hidden = hidden;
} else {
//iOS 6 - move TabBar off screen
NSLog(#"iOS 6");
CGRect screenRect = [[UIScreen mainScreen] bounds];
float height = screenRect.size.height;
if(hidden){
[self moveTabBarToPosition:height];
}else{
[self moveTabBarToPosition:height - self.tabBar.frame.size.height];
}
}
}
//Moving the tab bar and its subviews offscreen so that top is at position y
-(void)moveTabBarToPosition:(int)y {
self.tabBar.frame = CGRectMake(self.tabBarController.tabBar.frame.origin.x, y, self.tabBar.frame.size.width, self.tabBar.frame.size.height);
for(UIView *view in self.view.subviews) {
if ([view isKindOfClass:[UITabBar class]]) {
[view setFrame:CGRectMake(view.frame.origin.x, y, view.frame.size.width, view.frame.size.height)];
} else {
NSLog(#"%f",view.frame.size.height);
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, y)];
NSLog(#"%f",view.frame.size.height);
view.backgroundColor = [UIColor blackColor];
}
}
}
#end
How to use:
[[self tabBarController] setTabBarHidden:NO myClass:self];
BUT, in iOS6 i have some issue, when i go first time to ViewController1 where the tabbar is hidden everthing works fine, but if i go to a ViewController2 that show the tab bar and back to ViewController1 that the tab bar must be hidden, the black space show up. Anyone can help me?!
Thanks!
In addition to the other excellent suggestions the following suggestion might help someone out. Try setting your tabbar to hidden in awakeFromNib instead of later in the lifecycle. I found that the hidden tabbar was flashing black on segue and this fixed it for me.
- (void)awakeFromNib
{
[super awakeFromNib];
self.tabBarController.tabBar.hidden = YES;
}
Is it possible to replace this gesture in iOS 6 with a custom gesture? I have a gesture to show the map in full screen by hiding the status and navigation bars and it works but it also zooms every time it is done.
Here is how I currently have my gesture implemented.
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer
{
return YES;
}
in viewDidLoad:
UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc]initWithTarget:self action:#selector(toggleBars:)];
tap.numberOfTapsRequired = 2;
[self.view addGestureRecognizer:tap];
tap.delegate = self;
gesture method:
- (void)toggleBars:(UITapGestureRecognizer *)gesture
{
BOOL barsHidden = self.navigationController.navigationBar.hidden;
if (!barsHidden)
{
[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationSlide];
[self hideTabBar:self.tabBarController];
}
else if (barsHidden)
{
[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationSlide];
[self showTabBar:self.tabBarController];
}
[self.navigationController setNavigationBarHidden:!barsHidden animated:YES];
}
methods for hiding/showing the tab bar:
- (void) hideTabBar:(UITabBarController *) tabbarcontroller
{
CGRect screenRect = [[UIScreen mainScreen] bounds];
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
float fHeight = screenRect.size.height;
if( UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) )
{
fHeight = screenRect.size.width;
}
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)];
view.backgroundColor = [UIColor blackColor];
}
}
[UIView commitAnimations];
}
- (void) showTabBar:(UITabBarController *) tabbarcontroller
{
CGRect screenRect = [[UIScreen mainScreen] bounds];
float fHeight = screenRect.size.height - 49.0;
if( UIDeviceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation) )
{
fHeight = screenRect.size.width - 49.0;
}
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, fHeight, view.frame.size.width, view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, fHeight)];
}
}
[UIView commitAnimations];
}
I can successfully run tests on the iOS simulator using webdriver, the only concern that I have is that there is a bar at the bottom of the screen which prevents the whole screen from displaying. It is not causing tests to fail, just wondering if there is a way to remove/collapse it so that the whole screen displays.
If you are using Uitabbar then you can use:
[self hideTabBar:your tabbarcontroller];//call to hide the tabbar;
[self showTabBar:your tabbarcontroller];//call to show the tabbar;
- (void)hideTabBar:(UITabBarController *) myTabbarController
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
for(UIView *myView in myTabbarController.view.subviews)
{
if([myView isKindOfClass:[UITabBar class]])
{
[myView setFrame:CGRectMake(myView.frame.origin.x, 480,
myView.frame.size.width,
myView.frame.size.height)];
}
else
{
[myView setFrame:CGRectMake(myView.frame.origin.x,
myView.frame.origin.y,
myView.frame.size.width, 480)];
}
}
[UIView commitAnimations];
}
- (void)showTabBar:(UITabBarController *) tabbarcontroller
{
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5];
for(UIView *view in tabbarcontroller.view.subviews)
{
if([view isKindOfClass:[UITabBar class]])
{
[view setFrame:CGRectMake(view.frame.origin.x, 431, view.frame.size.width,
view.frame.size.height)];
}
else
{
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y,
view.frame.size.width, 431)];
}
}
[UIView commitAnimations];
}
i am new to iOS programming. i really need your help.
i have a login screen that takes me to a map (google API). on clicking any created annotation i want to load a tabbar with 2 views.
i searched and found out that i need to add the tabbar at the starting ie the appdelegate and show/hide the tabbar when needed.
so i made 2 functions to show and hide tabbar as
-(void)Load_tabBar{
[self.navigationController.view removeFromSuperview];
[self.window addSubview:tabBarController.view];
[self.window makeKeyWindow];}
-(void)remove_tabBar{
self.tabBarController.selectedIndex=0;
[self.tabBarController.view removeFromSuperview];
[self.window addSubview:navigationController.view];
[self.window makeKeyWindow];}
it did work when i call the Load_tabBar method and when i click back it calls remove_tabBar method. if i again call Load_tabBar method and back, it crashes giving error
-[UILayoutContainerView window]: message sent to deallocated instance 0x563b0b0
edited: PS : can i add tabbar view to a view controller and then push that view?
thnx
use this self.hidesBottomBarWhenPushed = YES;
This method definitely works. You just need to put it in the method BEFORE you push it, like this:
-actionThatPushTheViewController {
//create the view controller here, do some init.
//then:
theViewControllerToBePushed.hidesBottomBarWhenPushed = YES;
//push it here like this:
[self.navigationController pushViewController:theViewControllerToBePushed animated:YES];
I hope this two methods may help you,
- (void) hideTabBar:(UITabBarController *) tabbarcontroller {
int height = 480;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
for(UIView *view in tabbarcontroller.view.subviews) {
if([view isKindOfClass:[UITabBar class]]) {
[view setFrame:CGRectMake(view.frame.origin.x, height, view.frame.size.width, view.frame.size.height)];
}
else {
[view setFrame:CGRectMake(view.frame.origin.x,view.frame.origin.y, 320, 436)];
}
}
[UIView commitAnimations];
}
- (void) showTabBar:(UITabBarController *) tabbarcontroller {
int height = 480;
[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.3];
for(UIView *view in tabbarcontroller.view.subviews) {
if([view isKindOfClass:[UITabBar class]]) {
[view setFrame:CGRectMake(view.frame.origin.x, height, view.frame.size.width, view.frame.size.height)];
}
else {
[view setFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, view.frame.size.width, height)];
}
}
[UIView commitAnimations];
}
Just put this two methods in AppDelegate class and call it where ever required as per you requirement.
if you want to hide it when pushed and show it when popped here is code:
if let viewController = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "SecondVC") as? SecondVC {
if let navigator = navigationController {
viewController.hidesBottomBarWhenPushed = true
navigator.pushViewController(viewController, animated: true)
}
}