I have the following problem:
There is a class that includes five tabs in the following way:
mainMenuClient.h
#import <UIKit/UIKit.h>
#interface MainMenuClient : UIViewController {
UITabBarController *tabBarController;
}
#property (nonatomic, retain) UITabBarController *tabBarController;
#end
mainMenuClient.m
-(void)viewDidLoad {
UIView *contentView = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
contentView.backgroundColor = [UIColor blackColor];
self.view = contentView;
[contentView release];
ContactListTab *contactTab = [[ContactListTab alloc] init];
ChatTab *chat = [[ChatTab alloc]init];
DialerTab *dialer = [[DialerTab alloc]init];
MenuTab *menu = [[MenuTab alloc]init];
TesztingFile *teszting = [[TesztingFile alloc]init];
contactTab.title = #"Contact List";
chat.title = #"Chat";
dialer.title = #"Dialer";
menu.title = #"Menu";
teszting.title = #"TesztTab";
contactTab.tabBarItem.image = [UIImage imageNamed:#"Contacts_icon.png"];
chat.tabBarItem.image = [UIImage imageNamed:#"Chat_icon.png"];
dialer.tabBarItem.image = [UIImage imageNamed:#"Dialer_icon.png"];
menu.tabBarItem.image = [UIImage imageNamed:#"Menu_icon.png"];
teszting.tabBarItem.image = [UIImage imageNamed:#"Contacts_icon.png"];
chat.tabBarItem.badgeValue = #"99";
tabBarController = [[UITabBarController alloc]init];
tabBarController.view.frame = CGRectMake(0, 0, 320, 460);
[tabBarController setViewControllers:[NSArray arrayWithObjects:contactTab, chat, dialer, menu, teszting, nil]];
[contactTab release];
[chat release];
[dialer release];
[menu release];
[teszting release];
[self.view addSubview:tabBarController.view];
[super viewDidLoad];
}
In the contactTab class there are a UITableViewController.
contactTab.h
- (void)updateCellData;
- (void)configureCell:(UITableViewCell *)cell forIndexPath:(NSIndexPath *)indexPath;
There is a third class, which I would like to achieve is a method of UITableViewController's (from ContactTab).
So far I tried this:
When I tried to achieve the UItabbarController:
MainMenuClient *menu;
UITabBarController *tabBarControllerchange = [[UITabBarController alloc] init];
tabBarControllerchange = menu.tabBarController;
[tabBarControllerchange setSelectedIndex:0];
When I tried to achieve the UITableViewController:
ContactListTab *contactListTab;
[contactListTab updateCellData];
Does anybody have an idea for this problem? Thanks. Balazs.
You need to get the instance of your MainMenuClient:
define method in your MainMenuClient.h as:
+(MainMenuClient*)getMainMenuInstance;
Implement the following method in MainMenuClient.m as :
+(MainMenuClient*)getMainMenuInstance
{
return self;
}
Now you can get same instance of UITabBarContrtoller in any class as :
MainMenuClient *menuClient = [MainMenuClient getMainMenuInstance];
UITabBarContrtoller *newTabBarController = menuClient.tabBarController;
You can do what ever you want to do with this new UITabBarController object.
Hope this helps.
Jim.
Related
I want to create a tabBar in my app but only in a detailView not in the AppDelegate. I am searching how to do this in google but everything what I have figured out is in AppDelegate.m
I am trying to do something like this. This shows me a Tab bar with two buttons(without names) but I want to go from one FirstViewController with tabBar, to one of the two items SecondViewController or ThirdViewController with a navigationBar with one backItemButton for get back to the FirstViewController
- (void)viewDidLoad
{
[super viewDidLoad];
[self setupTabBar];
}
- (void) setupTabBar {
tabBars = [[UITabBarController alloc] init];
NSMutableArray *localViewControllersArray = [[NSMutableArray alloc] initWithCapacity:4];
YPProfileViewController *profile = [[YPProfileViewController alloc] init];
YPProfileViewController *profile2 = [[YPProfileViewController alloc] init];
[localViewControllersArray addObject:profile];
[localViewControllersArray addObject:profile2];
tabBars.tabBarItem = profile2;
tabBars.viewControllers = localViewControllersArray;
tabBars.view.autoresizingMask==(UIViewAutoresizingFlexibleHeight);
[self.view addSubview:tabBars.view];
}
at least this works for me.
UIViewController *vc1 = [[UIViewController alloc] init];
vc1.title = #"FIRST";
vc1.view.backgroundColor = [UIColor blueColor];
UIViewController *vc2 = [[UIViewController alloc] init];
vc2.title = #"SECOND";
vc2.view.backgroundColor = [UIColor redColor];
UITabBarController *tabBar = [[UITabBarController alloc] init];
tabBar.viewControllers = #[vc1,vc2];
tabBar.selectedIndex = 1;
tabBar.view.frame = CGRectMake(50, 50, 220, 320);
[tabBar willMoveToParentViewController:self];
[self.view addSubview:tabBar.view];
[self addChildViewController:tabBar];
[tabBar didMoveToParentViewController:self];
I want to add a UITabBarController to my application. But I have to do it with code only. No xib files or storyboards. How to do this entirely through code?
EDIT:
_tbc = [[UITabBarController alloc] init];
aboutUsView = [[AboutUsView alloc] init];
helpView = [[HelpView alloc] init];
optionsView = [[OptionsView alloc] init];
self.navCon = [[UINavigationController alloc] initWithRootViewController:optionsView];
[self setnavigationCon:self.navCon];
[optionsView setdataLayer:self];
if ([navCon.navigationBar respondsToSelector:#selector(setBackgroundImage:forBarMetrics:)] ) {
UIImage *image = [UIImage imageNamed:#"Navigation Bar_reduced.png"];
[self.navCon.navigationBar setBackgroundImage:image forBarMetrics:UIBarMetricsDefault];
[optionsView addSelfView:window];
}
_tbc.viewControllers = [NSArray arrayWithObjects:navCon, aboutUsView, helpView, nil];
[window addSubview:_tbc.view];
Try this
AppDelegate.h
#interface AppDelegate : UIResponder <UITabBarControllerDelegate>
#property (strong, nonatomic) UITabBarController *tabBarController;
AppDeleGate.m
UINavigationController *nc1;
nc1 = [[UINavigationController alloc] init];
[nc1.navigationBar setTintColor:[UIColor blackColor]];
UIViewController *viewController1 = [[[FirstScreen alloc] initWithNibName:#"FirstScreen_ipad" bundle:nil] autorelease];
nc1.viewControllers = [NSArray arrayWithObjects:viewController1, nil];
UINavigationController *nc2;
nc2 = [[UINavigationController alloc] init];
[nc2.navigationBar setTintColor:[UIColor blackColor]];
UIViewController *viewController2 = [[[FullList alloc] initWithNibName:#"FullList_ipad" bundle:nil] autorelease];;
nc2.viewControllers = [NSArray arrayWithObjects:viewController2, nil];
UIViewController *viewController3 = [[[FavouriteView alloc] initWithNibName:#"FavouriteView_ipad" bundle:nil] autorelease];
UINavigationController *nc3;
nc3 = [[UINavigationController alloc] init];
[nc3.navigationBar setTintColor:[UIColor blackColor]];
nc3.viewControllers = [NSArray arrayWithObjects:viewController3, nil];
UIViewController *viewController4 = [[[UpcomingFights alloc] initWithNibName:#"UpcomingFights_ipad" bundle:nil] autorelease];
UINavigationController *nc4;
nc4 = [[UINavigationController alloc] init];
[nc4.navigationBar setTintColor:[UIColor blackColor]];
nc4.viewControllers = [NSArray arrayWithObjects:viewController4, nil];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:nc1, nc2,nc3,nc4 ,nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
ICON FOR TABBAR
In your ViewController.m file do as follow:
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self.title = NSLocalizedString(#"YOUR View NAME", #"YOUR VIEW NAME");
self.tabBarItem.image = [UIImage imageNamed:#"YOUR IMAGE NAME"];
return self;
}
Add this code in your AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
FirstViewController * fvc=[[FirstViewController alloc]initWithNibName:#"FirstViewController" bundle:nil];
SecondViewController * svc=[[SecondViewController alloc]initWithNibName:#"SecondViewController" bundle:nil];
ThirdViewController * tvc=[[ThirdViewController alloc]initWithNibName:#"ThirdViewController" bundle:nil];
FourthViewController * fvc2=[[FourthViewController alloc]initWithNibName:#"FourthViewController" bundle:nil];
tabbar=[[UITabBarController alloc]init];
tabbar.viewControllers=[NSArray arrayWithObjects:fvc,svc,tvc,fvc2,nil];
[self.window addSubview:tabbar.view];
}
Here is the code from user1673099 in Swift (nice username btw... ;0) -
func initialize_tabs() {
var ncArr : [UINavigationController] = [UINavigationController]();
for _ in 0...3 {
let nc : UINavigationController = UINavigationController();
let vc = UIViewController();
nc.viewControllers = [vc];
let v : UIView = UIView(frame: UIScreen.mainScreen().bounds);
let redC : CGFloat = CGFloat(arc4random_uniform(255))/CGFloat(255);
let greenC : CGFloat = CGFloat(arc4random_uniform(255))/CGFloat(255);
let blueC : CGFloat = CGFloat(arc4random_uniform(255))/CGFloat(255);
v.backgroundColor = UIColor(red: redC, green: greenC, blue: blueC, alpha: 1);
let l : UILabel = UILabel(frame: UIScreen.mainScreen().bounds);
l.text = "Test Label";
l.textAlignment = .Center;
v.addSubview(l);
vc.view = v;
ncArr.append(nc);
}
self.tabBarController = UITabBarController();
self.tabBarController.viewControllers = ncArr;
return;
}
I have app to create a graph i have created a view based app and then add the code for creating graph in it but it does not disply the graph. If use same code to create a separate UIView then it works other wise not
#import <UIKit/UIKit.h>
#import "ECGraph.h"
#import "ECGraphItem.h"
#class GraphsViewController;
#interface Display : UIView {
NSArray *percentages;
int myY;
ECGraph *graph;
ECGraphItem *item1;
ECGraphItem *item2;
}
#property(nonatomic,retain)NSArray*percentages;
-(void) setPercentageArray:(NSArray*) array;
#end
#import "Display.h"
#import "ECGraph.h"
#implementation Display
#synthesize percentages;
- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
// Initialization code.
}
return self;
}
- (void)drawRect:(CGRect)rect {
CGContextRef _context = UIGraphicsGetCurrentContext();
graph = [[ECGraph alloc] initWithFrame:CGRectMake(500,-320,320, 200) withContext:_context isPortrait:NO];
item1 = [[ECGraphItem alloc] init];
item2 = [[ECGraphItem alloc] init];
/*
ECGraphItem *item1 = [[ECGraphItem alloc] init];
ECGraphItem *item2 = [[ECGraphItem alloc] init];*/
item1.isPercentage = YES;
item1.yValue=myY;
item1.width = 35;
item1.name = #"item1";
item2.isPercentage = YES;
item2.yValue =17;
item2.width = 35;
item2.name = #"item2";
[graph setXaxisTitle:#"name"];
[graph setYaxisTitle:#"Percentage"];
[graph setGraphicTitle:#"Histogram"];
[graph setDelegate:self];
[graph setBackgroundColor:[UIColor colorWithRed:220/255.0 green:220/255.0 blue:220/255.0 alpha:1]];
NSArray *items = [[NSArray alloc] initWithObjects:item1,item2,nil];
[graph drawHistogramWithItems:items lineWidth:2 color:[UIColor blackColor]];
}
I am adding this view in GraphsViewController but its not showing anything
// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
[super viewDidLoad];
[self createGraph];
percentages = [NSArray arrayWithObjects:#"80",#"17", nil];
display = [[Display alloc] init];
[self.view addSubview:display];
[display setPercentageArray:percentages];
}
You should do the drawing in a separate UIView object and add it as a subview to your view controller's view. That's the way it is supposed to work.
The UIView class uses an on-demand drawing model for presenting
content.
Source: View Programming Guide for iOS
as opposed to
The UIViewController class provides the fundamental view-management
model for all iOS apps. ... A view controller manages a set of views
that make up a portion of your app’s user interface.
Source: UIViewController Class Reference
Edit:
// ...
display = [[Display alloc] init];
CGRect dFrame = CGRectMake(50, 50, 320, 200); // change these to whatever values you need
[display setFrame:dFrame];
[self.view addSubview:display];
Excuse if this problem is posted already..
I want to create combination of TabBar and NavigationBar programmatically using XCode 4.2 & iPhone SDK 5.0
It produces visual as expected..but when a TabBarItem is pressed(taped) to change to its corresponding view, it is producing error: [__NSCFString _tabBarItemClicked:]: unrecognized selector sent to instance
Here is the implementation of the AppDelegat
#import "ApplicationDelegat.h"
#import "BrightnessController.h"
#implementation ApplicationDelegat
#synthesize window;
//#synthesize bControl;
- (void)applicationDidFinishLaunching:(UIApplication *)application
{
NSMutableArray *controllers = [NSMutableArray array];
UITabBarController *tbarController = [[UITabBarController alloc] init];
for (int i = 0; i <= 3; i++)
{
//self.bControl = [[BrightnessController alloc] initWithBrightness:i];
BrightnessController *bControl = [[BrightnessController alloc] initWithBrightness:i];
UINavigationController *nav = [[UINavigationController alloc] initWithRootViewController: /*self.bControl*/bControl];
nav.navigationBar.barStyle = UIBarStyleBlackTranslucent;
[controllers addObject: nav];
//bControl.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"test" image:nil tag:i];
//tbarController.navigationController.delegate = self;
}
tbarController.viewControllers = controllers;
tbarController.customizableViewControllers = controllers;
tbarController.selectedIndex = 0;
tbarController.delegate = self;
// NSCFString
//tabBarItem
// Set up the window
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window addSubview:tbarController.view];
[self.window makeKeyAndVisible];
}
#end
I don't know why it happens and how to recover it..
Somebody help me.
If more detail is required, I can provide the source code...
Thanks in advance.
- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController; 7:20
switch(mytabbar.selectedIndex)
{
case 0:
[imageView1 setImage:[UIImage imageNamed:#"Tab1_sel.png"]];
[imageView2 setImage:[UIImage imageNamed:#"Tab2.png"]];
[imageView3 setImage:[UIImage imageNamed:#"Tab3.png"]];
[imageView4 setImage:[UIImage imageNamed:#"Tab4.png"]];
[imageView5 setImage:[UIImage imageNamed:#"Tab5.png"]];
break;
case 1:
you can use this method and change on each tabbar click index
Two issues I see...
You assign the view of the tabBarController as a subView of the window. This is incorrect. You need to set the rootViewController of the window to be the tBarController.
Are you implementing the tab bar's delegate method tabBar:didSelectViewController:? Your error message says you're trying to send a tabBar-related method to an NSString. I suspect it's due in part to point (1). Try:
self.window.rootViewController = self.tBarController;
I typically prefer creating another tabbarview class that handles all the different view controllers, in which case, the app delegate will look like this:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
ViewController *viewController = [[ViewController alloc] init];
self.window.rootViewController = viewController.myTabBarController;
[self.window makeKeyAndVisible];
return;
}
And in ViewController I do this:
Header file:
#interface ViewController : UIViewController {
IBOutlet UITabBarController *myTabBarController;
}
#property (nonatomic, retain) IBOutlet UITabBarController *myTabBarController;
And in the implementation file:
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
exerciseViewController *viewController1 = [[exerciseViewController alloc] init];
viewController1.title = #"Exercise";
viewController1.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Exercise" image:[UIImage imageNamed:#"inbox.png"] tag:0];
UINavigationController *firstNavController = [[UINavigationController alloc]initWithRootViewController:viewController1];
bookViewController *viewController2 = [[bookViewController alloc] init];
viewController2.title = #"Book";
viewController2.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Book" image:[UIImage imageNamed:#"inbox.png"] tag:1];
UINavigationController *secondNavController = [[UINavigationController alloc]initWithRootViewController:viewController2];
askViewController *viewController3 = [[askViewController alloc] init];
viewController3.title = #"Ask";
viewController3.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Ask" image:[UIImage imageNamed:#"inbox.png"] tag:2];
UINavigationController *thirdNavController = [[UINavigationController alloc]initWithRootViewController:viewController3];
workshopViewController *viewController4 = [[workshopViewController alloc] init];
viewController4.title = #"Workshop";
viewController4.tabBarItem = [[UITabBarItem alloc] initWithTitle:#"Workshop" image:[UIImage imageNamed:#"inbox.png"] tag:3];
UINavigationController *fourthNavController = [[UINavigationController alloc]initWithRootViewController:viewController4];
myTabBarController = [[UITabBarController alloc] init];
myTabBarController.viewControllers = [NSArray arrayWithObjects:firstNavController, secondNavController, thirdNavController, fourthNavController, nil];
}
return self;
}
This is just an example...and I think it's the right way to do that.
Have a mainviewcontroller and on it have UIToolbar which has a UIBarButtonItem Info which shows UIViewcontroller modally.
Now when pressing Infobutton it is showing UIViewController modally which has UITextView but not showing UINavigationController with Done button.
I am not able to figure it out what i am missing in my code.
This is how i am showing UITextView and NavigationController in UIViewController modally.
#import "ModalViewController.h"
#import <QuartzCore/QuartzCore.h>
#implementation ModalViewController
#synthesize textView;
#synthesize navBar;
#synthesize navigationController;
#synthesize delegate;
-(void)dealloc
{
[textView release];
[navBar release];
[navigationController release];
[super dealloc];
}
- (void) viewDidLoad
{
[super viewDidLoad];
self.title = #"Info";
UINavigationController *navigationController = [[UINavigationController alloc]init];
//initWithRootViewController:viewController];
self.navigationController.navigationBar.tintColor = [UIColor brownColor];
self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(Done:)] autorelease];
self.textView = [[[UITextView alloc] initWithFrame:CGRectMake(0, 0, 320, 416)]autorelease];
self.textView.textColor = [UIColor whiteColor];
self.textView.font = [UIFont fontWithName:#"Georgia-BoldItalic" size:14];
//self.textView.delegate = self;
self.textView.backgroundColor = [UIColor brownColor];
self.textView.layer.borderWidth = 1;
self.textView.layer.borderColor = [[UIColor whiteColor] CGColor];
self.textView.layer.cornerRadius = 1;
self.textView.textAlignment = UITextAlignmentCenter;
self.textView.text = #"This is UITextView presenting modally.\nThis is UITextView presenting modally.\nThis is UITextView presenting modally.\nThis is UITextView presenting modally.\nThis is UITextView presenting modally.\nThis is UITextView presenting modally.
self.textView.editable = NO;
//[self.view addSubview:navigationController.view];
[self.view addSubview: self.textView];
//[navigationController release];
}
And this is how UIViewController presented modally
//Create a final modal view controller
UIButton *modalViewButton = [UIButton buttonWithType:UIButtonTypeInfoLight];
[modalViewButton addTarget:self action:#selector(modalViewAction:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *modalBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:modalViewButton];
self.navigationItem.rightBarButtonItem = modalBarButtonItem;
- (void) modalViewAction:(id)sender
{
self.view = [[[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]]autorelease];
//self.viewController = [[ModalViewController alloc] init];
[self.view setFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height)];
//ModalViewController *myModalViewController = [[ModalViewController alloc] init];
//UINavigationController *navigationController = [[UINavigationController alloc] initWithRootViewController:myModalViewController];
//navigationController.navigationBar.tintColor = [UIColor brownColor];
_viewController = [[ModalViewController alloc] init];
//[navigationController pushViewController:_viewController animated:YES];
[self presentModalViewController:self.viewController animated:YES];
//[self.view addSubview:navigationController.view];
//[navigationController release];
[myModalViewController release];
}
I will appreciate if you can figure out what i m doing wrong or missing in my code.
Thanks a lot.
This seems like a needlessly convoluted way of displaying the new controller. In my apps, I do it like this:
//this function displays (modally) view controller nested inside a navcontroller
- (void) showModalController
{
YourViewController * ecreator = [[YourViewController alloc] initWithNibName:#"YourViewController" bundle:nil];
UINavigationController * navcontrol = [[UINavigationController alloc] initWithRootViewController: ecreator];
[self presentModalViewController: navcontrol animated:YES];
[navcontrol release];
[ecreator release];
}
Now you want to do the graphical setup (navbar color etc) in the initWithNib and/or viewDidLoad functions of the YourViewController.
#synthesize navigationController;
so navigationController is your class member variable.
in the function
- (void) viewDidLoad
you declare a local variable
UINavigationController *navigationController
Please notice that the second navigationController is different from your member variable navigationController .
So, inside viewDidLoad you need to create object of your member variable navigationController. Not the local variable navigationController.
Do not RE-declare navigationController in viewDidLoad. Instead, create the object using member variable like:
navigationController = [[UINavigationController alloc]init];
Try this, it worked great for me. I had the exact same problem
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([segue.identifier isEqualToString:#“segue_name"])
{
UINavigationController *nav = [segue destinationViewController];
ExampleViewController *exampleVC = (ExampleViewController *) nav.topViewController;
//Setup any properties here and segue
}
}