I have noticed that my GoogleMap stopped working in the sense that it has become inactive after first touch. This got me thinking, so I decided to create a new project with the same code to check to see if it was the code and shows that its not my GoogleMaps code. I think it has to do with how I set up my Navigation Bar and Tab Bar.
This is what I have. I have an initial ViewController inside a NavigationController. This view controller does many things, one of which is push view controllers. I have a button that pushes a UITabBarController onto the NavigationController stack. I have created a UITabBarController inside storyboard and gave that controller a StoryboardID: GRxTabBarViewController. GRxTabBarViewController has 4 view controllers, PricesViewController, SavingsViewController, InfoViewController, and MapsViewController.
I then created the header and implementation files of these controllers. This is what I have in my initial view controller to push this tab bar controller and tab bars.
-(void)pushTabBar
{
UIStoryboard *iPhoneStoryBoard = [UIStoryboard storyboardWithName:#"Main_iPhone" bundle:nil];
GRxTabBarViewController *tabViewController = (GRxTabBarViewController*) [iPhoneStoryBoard instantiateViewControllerWithIdentifier:#"GRxTabBarViewController"];
PricesViewController *pricesController = [tabViewController.viewControllers objectAtIndex:0];
SavingsViewController *savingsController = [tabViewController.viewControllers objectAtIndex:1];
InfoViewController *infoController = [tabViewController.viewControllers objectAtIndex:2];
MapsViewController *mapController = [tabViewController.viewControllers objectAtIndex:3];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:infoController];
UINavigationController *savingsNav = [[UINavigationController alloc] initWithRootViewController:savingsController];
UITabBarItem *tabBarItem1 = [[tabViewController.tabBar items] objectAtIndex:0];
[tabBarItem1 setFinishedSelectedImage:[UIImage imageNamed:#"tabbar-prices-selected"] withFinishedUnselectedImage:[UIImage imageNamed:#"tabbar-prices-normal"]];
UITabBarItem *tabBarItem2 = [[tabViewController.tabBar items] objectAtIndex:1];
[tabBarItem2 setFinishedSelectedImage:[UIImage imageNamed:#"tabbar-savings-selected"] withFinishedUnselectedImage:[UIImage imageNamed:#"tabbar-savings-normal"]];
UITabBarItem *tabBarItem3 = [[tabViewController.tabBar items] objectAtIndex:2];
[tabBarItem3 setFinishedSelectedImage:[UIImage imageNamed:#"tabbar-info-selected"] withFinishedUnselectedImage:[UIImage imageNamed:#"tabbar-info-normal"]];
UITabBarItem *tabBarItem4 = [[tabViewController.tabBar items] objectAtIndex:3];
[tabBarItem4 setFinishedSelectedImage:[UIImage imageNamed:#"tabbar-map-selected"] withFinishedUnselectedImage:[UIImage imageNamed:#"tabbar-map-normal"]];
[tabViewController setViewControllers:[NSArray arrayWithObjects:pricesController, savingsNav, navController, mapController, nil]];
[self.navigationController pushViewController:tabViewController animated:YES];
}
GRxTabBarViewController is a UITabBarController and has this in the implementation file.
GRxTabBarViewController.m
- (void)viewDidLoad
{
[super viewDidLoad];
UIButton *backButton = [[UIButton alloc] init];
[backButton setImage:[UIImage imageNamed:#"back"] forState:UIControlStateNormal];
[backButton addTarget:self action:#selector(dismissTab) forControlEvents:UIControlEventTouchUpInside];
backButton.frame = CGRectMake(0, 0, 20.0f, 44.0f);
UIBarButtonItem *backBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.leftBarButtonItem = backBarButtonItem;
self.navigationItem.hidesBackButton = YES;
}
-(void)dismissTab
{
[self.navigationController popViewControllerAnimated:YES];
}
Am I doing anything wrong? Am I setting up my tab bar incorrectly? Has someone pushed a tab bar before and have any ideas what I am doing wrong that can help me out? Any guidance or help is appreciated. Thanks in advance!
Related
i am working on a chat project in which i have to use a UITabBar. I am using storyboard in this project but according to requirement i added custom TabBar in project to mount it on the top of the view.
Now the problem is Custom TabBar is showing well on the top of view but when i click on the tabs it only shows black screen instead of showing the ViewControllers.
i am sharing my code please suggest me the solution of it.
my .h file
#interface TabBar : UITabBarController
{
}
#property(strong,nonatomic) UITabBarController *tabbarcontroller;
#property(strong,nonatomic) ChatListVC *chatlist;
#property(strong,nonatomic) ContactListVc *contactlist;
#property(strong,nonatomic) FindfriendsVC *findfriends;
#end
my .m file
#implementation TabBar
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
// self.navigationItem.hidesBackButton=YES;
self.title = #"Chat Home Page";
self.navigationController.navigationBar.backgroundColor = [UIColor blueColor];
_chatlist = [ChatListVC new];
_contactlist = [ContactListVc new];
_findfriends = [FindfriendsVC new]; //initWithNibName:#"FindfriendsVC" bundle:nil];//[FindfriendsVC new];
self.tabbarcontroller = [[UITabBarController alloc]init];
self.viewControllers = [NSArray arrayWithObjects:_chatlist,_contactlist,_findfriends, nil];
//self.navigationController.navigationBar.frame.size.height;
//UITabBar *tabBar = self.tabBarController.tabBar;
//CGFloat topBarOffset = self.topLayoutGuide.length;
self.tabBar.frame =CGRectMake(0,44,self.view.frame.size.width,50);
UITabBarItem *item0 = [self.tabBar.items objectAtIndex:0];
UITabBarItem *item1 = [self.tabBar.items objectAtIndex:1];
UITabBarItem *item2 = [self.tabBar.items objectAtIndex:2];
item0.title = #"Chat List";
item1.title = #"Contacts";
item2.title = #"Find Friends";
[item0 setFinishedSelectedImage:[UIImage imageNamed:#"chatlist.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"chatlist.png"]];
[item1 setFinishedSelectedImage:[UIImage imageNamed:#"contacts.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"contacts.png"]];
[item2 setFinishedSelectedImage:[UIImage imageNamed:#"findfriends.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"findfriends.png"]];
}
snapshot of the output is
It looks like your view controllers aren't being initialised properly.
If your view controllers are all in the Storyboard, try replacing
_chatlist = [ChatListVC new];
_contactlist = [ContactListVc new];
_findfriends = [FindfriendsVC new];
with:
_chatlist = [[UIStoryboard storyboardWithName:#"Main" bundle:nil] instantiateViewControllerWithIdentifier:#"ChatListIdentifier"];
_contactlist = [[UIStoryboard storyboardWithName:#"Main" bundle:nil] instantiateViewControllerWithIdentifier:#"ContactListIdentifier"];
_findfriends = [[UIStoryboard storyboardWithName:#"Main" bundle:nil] instantiateViewControllerWithIdentifier:#"FindfriendsIdentifier"];
Where the identifier string is your own identifier that you have set up in the Storyboard.
I'm trying to change views within an app I am editing the code for. But the navigation bar doesn't seem to update in specific instances when presenting a new viewcontroller. Right now the behavior looks like this:
I navigate to a tableviewcontroller by clicking on a tab in the tabbar,
then I navigate to a viewcontroller from this tableviewcontroller using:
settingsController = [SettingsController create];
[self.navigationController pushViewController: settingsController animated: YES];
which I believe calls this code:
+(id)create
{
SettingsController*settings = [[SettingsController alloc] init];
NSBundle*bundle = [NSBundle bundleForClass: [SettingsController class]];
[bundle loadNibNamed: #"SettingsController" owner: settings options: NULL];
settings.view.frame = CGRectMake(0, 0, 320, 411);
settings.title = #"Settings";
return settings;
}
Then from there I navigate to another view controller using:
SearchViewController*searchView;
searchView = [[SearchViewController alloc] initWithNibName:#"SearchView" bundle: [NSBundle mainBundle]];
[self presentViewController:searchView animated:YES completion:nil];
and this is where the behavior starts getting buggy, the navigation bar doesnt update to the change in the view controller. I didn't write this code but it has been giving me a headache trying to clean it up.
If you are using a navigationController then you shouldn't call
[self presentViewController:searchView animated:YES completion:nil];.
You should use
[self.navigationController pushViewController:searchView animated:YES];
Also, it would be better to use the standard in-built function to initialize a new view controller.
SettingsController*settings = [[SettingsController alloc] initWithNibName:#"SettingsController" bundle:nil];
[self.navigationController pushViewController:settings animated:YES];
and then use the default method in the view controller.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
self.title = #"Settings";
//other view changes.
}
return self;
}
See this example for the way of initializing tabbarcontroller with navigation controller
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UIViewController *viewController1, *viewController2,*viewController3;
viewController1 = [[ViewController alloc] init];
viewController2 = [[FormStatusViewController alloc] initWithNibName:#"FormStatusViewController" bundle:nil];
viewController3 = [[DocumentsViewController alloc] init];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController:viewController1];
UINavigationController *nav1 =[[UINavigationController alloc] initWithRootViewController:viewController2];
UINavigationController *nav2 =[[UINavigationController alloc] initWithRootViewController:viewController3];
nav.navigationBarHidden=YES;
nav1.navigationBarHidden=YES;
nav2.navigationBarHidden=YES;
NSArray *viewsArray = [[NSArray alloc] initWithObjects:nav,nav1,nav2, nil];
self.formTabBar= [[UITabBarController alloc] init];
[self.formTabBar setViewControllers:viewsArray];
UITabBar *tabBar = self.formTabBar.tabBar;
UITabBarItem *tabBarItem1 = [tabBar.items objectAtIndex:0];
UITabBarItem *tabBarItem2 = [tabBar.items objectAtIndex:1];
UITabBarItem *tabBarItem3 = [tabBar.items objectAtIndex:2];
tabBarItem1.title = #"FORM";
tabBarItem2.title = #"STATUS";
tabBarItem3.title = #"DOCUMENTS";
UIImage *tabBackground = [[UIImage imageNamed:#"tab_bg.png"]
resizableImageWithCapInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[[UITabBar appearance] setBackgroundImage:tabBackground];
if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7) {
[tabBarItem1 setFinishedSelectedImage:[UIImage imageNamed:#"form.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"form_h.png"]];
[tabBarItem2 setFinishedSelectedImage:[UIImage imageNamed:#"status.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"status_h.png"]];
[tabBarItem3 setFinishedSelectedImage:[UIImage imageNamed:#"documents.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"documents_h.png"]];
} else {
tabBarItem1.selectedImage = [[UIImage imageNamed:#"form_h.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem1.image = [[UIImage imageNamed:#"form.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem2.selectedImage = [[UIImage imageNamed:#"status_h.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem2.image = [[UIImage imageNamed:#"status.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem3.selectedImage = [[UIImage imageNamed:#"documents_h.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem3.image = [[UIImage imageNamed:#"documents.png"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
}
[[UITabBar appearance] setSelectionIndicatorImage:
[UIImage imageNamed:#"tab_select_indicator.png"]];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor], UITextAttributeTextColor,
nil] forState:UIControlStateNormal];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:
[UIColor whiteColor], UITextAttributeTextColor,
nil] forState:UIControlStateHighlighted];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.rootViewController = self.formTabBar;
[self.window makeKeyAndVisible];
return YES;
}
Now in your view controller suppose the firstviewcontroller in first tab you want to navigate to another view controller in that tab then use below code
SearchViewcontroller *searchView =[[SearchViewcontroller alloc]init];
[self.navigationController pushViewController:searchView animated:YES];
I create basic TabBarController with 2 ViewControllers.
It worked but it have bug and i want something about it.
Problem1.
When I run (default ViewController is FirstViewController) name of SecondViewController in TabBar is not appear.
I want following this picture.
Problem2.
In my code default view is FirstViewController.
If I want to set default view is SecondViewController
by Same Tab Bar(FirstView Tab : Left ,and SecondView Tab : Right)
following this picture. How to resolve it.
This is my example code
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
FirstViewController *firstVC = [[FirstViewController alloc] init];
UINavigationController *firstNVC = [[UINavigationController alloc] initWithRootViewController:firstVC];
firstNVC.navigationBar.barStyle = UIBarStyleBlack;
SecondViewController *secondVC = [[SecondViewController alloc] init];
UINavigationController *secondNVC = [[UINavigationController alloc] initWithRootViewController:secondVC];
secondNVC.navigationBar.barStyle = UIBarStyleBlack;
UITabBarController *tabController = [[UITabBarController alloc]init];
tabController.navigationItem.hidesBackButton = NO;
tabController.viewControllers = [NSArray arrayWithObjects:firstNVC, secondNVC, nil];
tabController.navigationController.navigationBarHidden = NO;
self.window.rootViewController = tabController;
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
Thank You. ^^
UIViewController *viewController1 = [[[viewController1 alloc] initWithNibName:#"viewController1" bundle:nil] autorelease];
UIViewController *viewController2 = [[[viewController2 alloc] initWithNibName:#"viewController2" bundle:nil] autorelease];
UIViewController *viewController3 = [[[viewController3 alloc] initWithNibName:#"viewController3" bundle:nil] autorelease];
navControl1=[[UINavigationController alloc]initWithRootViewController:viewController1];
navControl2=[[UINavigationController alloc]initWithRootViewController:viewController2];
navControl3=[[UINavigationController alloc]initWithRootViewController:viewController3];
navControl1.navigationBar.tintColor=[UIColor colorWithRed:0.0 green:0.0 blue:0.0 alpha:0.8];
navControl2.navigationBar.tintColor=[UIColor blackColor];
navControl3.navigationBar.tintColor=[UIColor blackColor];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.delegate=self;
self.tabBarController.viewControllers = [NSArray arrayWithObjects:navControl2,navControl1,navControl3, nil ];
[[[[self.tabBarController tabBar] items] objectAtIndex:2] setFinishedSelectedImage:[UIImage imageNamed:#""] withFinishedUnselectedImage:[UIImage imageNamed:#""]];
[[[[self.tabBarController tabBar] items] objectAtIndex:0] setTitle:#"1"];
[[[[self.tabBarController tabBar] items] objectAtIndex:0] setImage:[UIImage imageNamed:#"tab2.png"]];
[[[[self.tabBarController tabBar] items] objectAtIndex:1] setTitle:#"2"];
[[[[self.tabBarController tabBar] items] objectAtIndex:1] setImage:[UIImage imageNamed:#"tab11.png"]];
[[[[self.tabBarController tabBar] items] objectAtIndex:2] setTitle:#"3"];
[[[[self.tabBarController tabBar] items] objectAtIndex:2] setImage:[UIImage imageNamed:#"tab5.png"]];
[self.tabBarController.tabBar setSelectionIndicatorImage:[UIImage imageNamed:#"trans.png"]];
UIImage* tabBarBackground = [UIImage imageNamed:#""];
[[UITabBar appearance] setBackgroundImage:tabBarBackground];
[[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:#"trans.png"]];
Problem2. If I want to
set default view is SecondViewController by Same Tab Bar(FirstView Tab
: Left ,and SecondView Tab : Right). How to
resolve it.
Solution:
[self.tabBarController setSelectedIndex:1];
Problem 1:
try to set a title for the view controllers.
Problem 2:
You just set selected index of the tabBarController to 1, that should do it.
Problem1
You haven't set tabbarItem for each navigation controller, I think you should set up a UITabBarItem with title first, then assign it to tabbarItem property to navigation controller.
Problem2
Just as #Kumar says.
I want something like looking in image, I want to do this in tabbar application or mainstoryboard. This i did normal single view based application with tabbar item.
I try following code also, in this when i click tabbar items particular viewcontroller opens. But i want on click of third tabbar item it should show UIActionSheet not third viewcontroller. How i can achieve this.
FisrtTabViewController *first = [[FisrtTabViewController alloc]initWithNibName:#"FisrtTabViewController" bundle:nil];
[first.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:#"myarea_selected.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"myarea.png"]];
UINavigationController *tabItem1 = [[UINavigationController alloc] initWithRootViewController: first];
SecconTabViewController *second = [[SecconTabViewController alloc] initWithNibName:#"SecconTabViewController" bundle:nil];
[ second.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:#"areaconv_selected.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"areaconv.png"]];
ThirdTabViewController *third = [[ThirdTabViewController alloc] initWithNibName:#"ThirdTabViewController" bundle:nil];
[ third.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:#"share_selected.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"share.png"]];
tabbar1.viewControllers = [NSArray arrayWithObjects:tabItem1,second,third,nil];
[[UITabBar appearance]setBackgroundImage:[UIImage imageNamed:#"tabbar.png"]];
[[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:#"tabbar_selected.png"]];
tabbar1.modalTransitionStyle =UIModalTransitionStyleCrossDissolve;
[self presentViewController:tabbar1 animated:YES completion:NULL];
Thanks in advance.
I have a UITabbar controller with 3 item, I want to have colour icon instead of based Gary icons,
would you please give me some hint that how can I have colour icon in tababr,
Here is my code:
self.title = #"test";
self.tabBarItem = [[UITabBarItem alloc] initWithTitle:self.title image:[UIImage
imageNamed:#"test"] tag:0];
normally test is a icone with a colour picture, but in UITabbar it's just Gary,
Thanks in advance!
Use this code:
[self.tabBarItem setFinishedSelectedImage:[UIImage imageNamed:#"test"]
withFinishedUnselectedImage:[UIImage imageNamed:#"test"]];
You will need to build your own TabBarController. As Per the Apple docs on the matter "This class [UITabBarController] is not intended for subclassing". The docs on the UITabBarItem say that when you are supplying an image for the tab bar "The images displayed on the tab bar are derived from this image". So, whatever image you provide to the tab bar will get manipulated to make it conform to the "normal" look of a tab bar image.
So, you can build a UIViewController with some UIButtons as subviews and then manage the entire look and feel that way.
you have to create 2 images for all 3 tabs one is unselected and second is selected.
after that in your appdelegate.m file write below code
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
self.searchArray = [[NSMutableArray alloc]init];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
viewController1 *view1 = [[[viewController1 alloc] initWithNibName:#"viewController1" bundle:nil] autorelease];
view1.tabBarItem.image = [UIImage imageNamed:#"tab-selected-1"];
view1.tabBarItem.title = #"Title1";
viewController2 *view2 = [[[viewController2 alloc] initWithNibName:#"viewController2" bundle:nil] autorelease];
view2.tabBarItem.image = [UIImage imageNamed:#"tab-selected-2"];
view2.tabBarItem.title = #"Title2";
viewController3 *view3 = [[[viewController3 alloc] initWithNibName:#"viewController3" bundle:nil] autorelease];
view3.tabBarItem.image = [UIImage imageNamed:#"tab-selected-3"];
view3.tabBarItem.title = #"Title3";
self.tabBarController.viewControllers = [NSArray arrayWithObjects:view1, view2, view3, nil];
UITabBarItem *tabBarItem1 = [[self.tabBarController.tabBar items] objectAtIndex:0];
[tabBarItem1 setFinishedSelectedImage:[UIImage imageNamed:#"tab-selected-1.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"tab-unselected-1.png"]];
UITabBarItem *tabBarItem2 = [[self.tabBarController.tabBar items] objectAtIndex:1];
[tabBarItem2 setFinishedSelectedImage:[UIImage imageNamed:#"tab-selected-2.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"tab-unselected-2.png"]];
UITabBarItem *tabBarItem3 = [[self.tabBarController.tabBar items] objectAtIndex:2];
[tabBarItem3 setFinishedSelectedImage:[UIImage imageNamed:#"tab-selected-3.png"] withFinishedUnselectedImage:[UIImage imageNamed:#"tab-unselected-3.png"]];
return YES;
}
try this your problem surly solved. Best Of Luck