I've created a UIbutton (in storyboard) to add an object to favourites list, but I'm having trouble configuring it. This adds the object to favorites, but how to un-favorite it?
I've been searching and thinking for a while and my thought was to make some an if-statement in the manageHighlightAndFave like: if favButton state = highlighted, remove from favorites and remove highlight. Else, add to favorite and add highlight. Is this good, or what is the preferred way of doing what I'm trying? I would love an example as I am new to programming.
-(IBAction)favoriteButtonPressed:(id)sender
{
[self performSelector:#selector(manageHighlightAndFave:) withObject:sender afterDelay:0];
}
- (void)manageHighlightAndFave:(UIButton*)favButton {
[[NSNotificationCenter defaultCenter] postNotificationName:#"ItemSelected"
object:selectedObject];
[favButton setHighlighted:YES];
}
PS. Linked with "touch down" in storyboard.
i recommend you make a custom-Button. following refer code.
First, Make a following button.
File-New-File-Cocoa Touch-Objective-C Class
FavoriteButton.h
#import <UIKit/UIKit.h>
#interface FavoriteButton : UIButton
#property (nonatomic, assign) BOOL isFavorite;
#end
FavoriteButton.m
#import "FavoriteButton.h"
#implements FavoriteButton : UIButton
#synthesize isFavorite;
...
#end
Second, in Storyboard you link a FavoriteButton. refer a following image.
Are in the right panel at storyboard. before, clicked your originally UIButton
YourViewController.h
#import <UIKit/UIKit.h>
#import "FavoriteButton.h"
#interface YourViewController : UIViewController
#property (retain, nonatomic) IBOutlet FavoriteButton *favoriteButton;
#end
#implements YourViewController : UIViewController
#synthesize favoriteButton;
-(void) viewDidLoad
{
self.favoriteButton = [[FavoriteButton alloc] initWithFrame:...]];
//favoriteButton.isFavorite = NO; (already set in storyboard)
...
}
-(IBAction)favoriteButtonPressed:(id)sender
{
[self performSelector:#selector(manageHighlightAndFave:) withObject:sender afterDelay:0];
}
- (void)manageHighlightAndFave:(FavoriteButton *)favButton {
[[NSNotificationCenter defaultCenter] postNotificationName:#"ItemSelected"
object:selectedObject];
//true-false(YES-NO) Toggled. but isFavorite property is Must be initialized to false.
favButton.isFavorite = !favButton.isFavorite;
if(favButton.isFavorite)
{
favButton.imageView.image = [UIImage imageNamed:#"your_star_image"];
[favButton setHighlighted:YES];
}
else
{
favButton.imageView.image = nil;
[favButton setHighlighted:NO];
}
}
Related
It's possible to change an image by clicking on a button inside an other View Controller?
I use this code in order to pass the data from the ViewController to the SecondViewController. I would want to add to the same button the commando to add an image to the SecondViewController... Excused my poor question...
ViewController.h
#import <UIKit/UIKit.h>
#import "SecondViewController.h"
#interface ViewController : UIViewController <SecondViewControllerDelegate> {
IBOutlet UITextField *userNameTextField;
}
#property (nonatomic, strong) UITextField *userNameTextField;
#end
ViewController.m
#import "ViewController.h"
#import "SecondViewController.h"
#interface ViewController ()
#end
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{
if([segue.identifier isEqualToString:#"to2"]){
SecondViewController *viewController = segue.destinationViewController;
viewController.delegate = self;
}
}
- (void)done:(NSString *)name{
[self dismissViewControllerAnimated:YES completion:nil];
NSLog(#"Back in first ViewController, metod Done, with name=%#",name);
userNameTextField.text=name;
}
#end
SecondViewController.h
#import <UIKit/UIKit.h>
#protocol SecondViewControllerDelegate <NSObject>
-(void) done:(NSString*)someText;
#end
#interface SecondViewController : UIViewController {
IBOutlet UITextField *someText;
IBOutlet UIButton *returnButton;
id delegate;
}
#property (nonatomic, assign) id <SecondViewControllerDelegate> delegate;
#property (nonatomic, strong) UITextField *someText;
- (IBAction)returnButtonPressed:(id)sender;
#end
SecondViewController.m
#import "SecondViewController.h"
#interface SecondViewController ()
#end
#implementation SecondViewController
#synthesize someText;
#synthesize delegate = _delegate;
- (IBAction)returnButtonPressed:(id)sender {
[self.delegate done:someText.text];
}
#end
Here is one way that should work for you:
Just set up an NSNotification in your ViewController with the image. Trigger the notification in the other viewController when the button is pressed.
in your image's view controller:
//in ViewDidLoad:
[[NSNotificationCenter defaultCenter]addObserver:self selector:#selector(changeTheImage) name:#"CHANGE_THE_IMAGE" object:nil];
//then elsewhere in the class:
- (void)changeTheImage {
//change your image here
}
//and in your dealloc, make sure you add this, or it will keep "observing"
[[NSNotificationCenter defaultCenter] removeObserver:self];
Then in the button view controller:
//have this as your button action (or add the line to your button action)
- (IBAction)yourButtonWasPressed:(id)sender {
[[NSNotificationCenter defaultCenter]postNotificationName:#"CHANGE_THE_IMAGE" object:self];
What's the mean to change another UIViewController. because when you click on current UIViewController that's mean the current is on top and visible. what you called another can only be overlap inactive or it's does not exist right now.
So if you want somehow to change the UIImage from another UI, the simplest way is to hold the UIImage or image file name in a global store area such as your AppDelegate class, file. when click change the global area content. and in the ui for image show you can add some code in
- (void)viewWillAppear:(BOOL)animated {
//read and change UIImage content from global store
}
is it what you want ?
Here is the situation. I have a view controller titled "MyViewController." Within this view controller I have a text editing feature that uses subclassed buttons. The name of the UIButton Subclass is "ColorSwatch"
I have setup delegate/protocol methods in the "ColorSwatch.h" subclass as follow.
// ColorSwatch.h
#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import <QuartzCore/QuartzCore.h>
#protocol ColorSwatchDelegate <NSObject>
- (void)fontColor:(UIColor *)color;
#end
#interface ColorSwatch : UIButton {
id <ColorSwatchDelegate> colorSwatchDelegate;
CAGradientLayer *gradient;
UIView *currentView;
UIColor *fontColor;
}
#property (nonatomic, retain) id <ColorSwatchDelegate> colorSwatchDelegate;
#property (nonatomic, retain) CAGradientLayer *gradient;
#property (nonatomic, retain) UIView *currentView;
#property (nonatomic, retain) UIColor *fontColor;
#end
Now in my "ColorSwatch.m" I have:
// ColorSwatch.m
#import "ColorSwatch.h"
#import <QuartzCore/QuartzCore.h>
#import "MyViewController.h"
#implementation ColorSwatch
#synthesize gradient;
#synthesize currentView;
#synthesize colorSwatchDelegate;
#synthesize fontColor;
-(void)setupView{
"Makes the subclassed buttons pretty"
}
-(id)initWithFrame:(CGRect)frame{
if((self = [super initWithFrame:frame])){
}
return self;
}
-(id)initWithCoder:(NSCoder *)aDecoder{
if((self = [super initWithCoder:aDecoder])){
[self setupView];
MyViewController *mvc = [[MyViewController alloc] initWithNibName:
#"MyViewController" bundle:nil];
self.colorSwatchDelegate = mvc;
}
return self;
}
-(void) touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
[self magnify:view];
fontColor = view.backgroundColor;
[self.colorSwatchDelegate fontColor:fontColor];
}
- (void)magnify:(UIView *)view
{
}
- (void)dealloc
{
[currentView release];
[gradient release];
[fontColor release];
[super dealloc];
}
#end
In the "MyViewController.h" I have:
// MyViewController.h
#import <UIKit/UIKit.h>
#import <QuartzCore/QuartzCore.h>
#import "ColorSwatch.h"
#interface MyViewController : UIViewController <ColorSwatchDelegate> {
UITextField *photoLabelTextField;
}
#property (nonatomic, retain) IBOutlet UITextField *photoLabelTextField;
#end
In the "MyViewController.m" I have:
- (void)fontColor:(UIColor *)color
{
NSLog(#"Selected Font Color");
[self.photoLabelTextField setTextColor:color];
}
Now the delegate method sort of works, meaning when I tap on a color button the
NSLog(#"Selected Font Color");
message gets fired. But the problem is that I cannot change the
[self.photoLabelTextField setTextColor:color];
property. I have tried numerous ways of changing the property, the only thing that I can do is send NSLogs, anything I try to change a property in the "MyViewController" Class nothing happens.
If anyone could please help me out, I would appreciate it.
Thank you
The problem is that the ColorSwatch is sending delegate messages to a dangling instance of MyViewController that it incorrectly allocated in it's initWithCoder: method.
UIControls shouldn't allocate ViewControllers to be their delegates... it goes the other way around.
Delete these lines...
// in ColorSwatch.m initWithCoder:
MyViewController *mvc = [[MyViewController alloc] initWithNibName:
#"MyViewController" bundle:nil];
self.colorSwatchDelegate = mvc;
Then, in MyViewController.m ...
- (void)viewDidLoad {
ColorSwatch *colorSwatchButton = [[ColorSwatch alloc] buttonWithType:UIButtonTypeCustom];
// or place a ColorSwatch in the xib, on MyViewController's view... But not before you
// you delete lines from initWithCoder, otherwise it's infinite circular allocation
colorSwatchButton.frame = CGRectMake(/* ... */);
colorSwatchButton addTarget:self action:#selector(csButtonPressed:) forControlEvent: UIControlEventTouchUpInside];
// and so on...
// now the important part:
colorSwatchButton.colorSwatchDelegate = self;
// see - the ViewController is in charge of allocation, sets itself up as the delegate
[self.view addSubview:colorSwatchButton];
}
Instead of building the button in code, you can use IB.
Step 1: make the delegate an outlet...
#property (nonatomic, retain) IBOutlet id <ColorSwatchDelegate> colorSwatchDelegate;
Step 2: draw the buttons in IB, and set their class to ColorSwatch.
Then you can skip the code I wrote in viewDidLoad.
Step 3: The newly placed button should now present an outlet in IB. You can drag from that to the MyViewController as you normally do.
There might be a connection problem in your IBOutlet photoLabelTextField, you may have forgotten to connect xib text field with your photoLabelTextField
I have three view controllers, one root controller, one login view controller and one customers view controller. I want to pass the entered username and password in login view controller to the customers view controller. My files and code is displayed below, could you please guide me, how can access to variables set in the login view controller? Or how can I pass variables to customers view controller?
I have these class files:
/classes/MySoftwareAppDelegate.h
/classes/MySoftwareAppDelegate.m
/classes/ViewController.h
/classes/ViewController.m
/classes/LoginController.h
/classes/LoginController.m
/classes/CustomersController.h
/classes/CustomersController.m
I have these views:
/resources/MainWindow.xib
/resources/Login.xib
/resources/Customers.xib
In the AppDelegate, I have successfully inserted the sub view "Login" and it's displayed whenever the app starts.
In the login view, I enter my username and password and then click the "Login" button. When this button is clicked, an IBAction is triggered. In this IBAction, I want to change the current subview with the Customers.
Here's the code I have used:
MySoftwareAppDelegate.h
#import <UIKit/UIKit.h>
#class ViewController;
#interface MySoftwareAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
ViewController *viewController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet ViewController *viewController;
#end
MySoftwareAppDelegate.m
#import "MySoftwareAppDelegate.h"
#import "ViewController.h"
#implementation MySoftwareAppDelegate
#synthesize window;
#synthesize viewController;
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Override point for customization after application launch
[window addSubview:viewController.view];
[window makeKeyAndVisible];
}
- (void)dealloc {
[viewController release];
[window release];
[super dealloc];
}
#end
ViewController.h
#import <UIKit/UIKit.h>
#class LoginController;
#interface ViewController : UIViewController {
LoginController *loginController;
}
#property (nonatomic, retain) LoginController *loginController;
#end
ViewController.m
#import "ViewController.h"
#import "LoginController.h"
#implementation ViewController
#synthesize loginController;
- (void)viewDidLoad {
LoginController *tmpViewController = [[LoginController alloc] initWithNibName:#"Login" bundle:nil];
self.loginController = tmpViewController;
[self.view insertSubview:loginController.view atIndex:0];
[tmpViewController release];
[super viewDidLoad];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
if (self.loginController.view.superview == nil) {
self.loginController = nil;
}
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[loginController release];
[super dealloc];
}
#end
LoginController.h
#import <UIKit/UIKit.h>
#class CustomersController;
#interface LoginController : UIViewController {
UIButton *loginButton;
UITextField *usernameTextField;
UITextField *passwordTextField;
NSMutableString *available_credits;
NSString *current_xml_element;
CustomersController *customersController;
}
#property (nonatomic, retain) IBOutlet UIButton *loginButton;
#property (nonatomic, retain) IBOutlet UITextField *usernameTextField;
#property (nonatomic, retain) IBOutlet UITextField *passwordTextField;
#property (nonatomic, retain) NSMutableString *available_credits;
#property (nonatomic, retain) NSString *current_xml_element;
#property (nonatomic, retain) CustomersController *customersController;
-(IBAction)textFieldDoneEditing:(id)sender;
-(IBAction)backgroundTap:(id)sender;
-(IBAction)loginToAccount:(id)sender;
#end
LoginController.m
#import "LoginController.h"
#import "CustomersController.h"
#implementation LoginController
#synthesize loginButton;
#synthesize usernameTextField;
#synthesize passwordTextField;
#synthesize customersController;
- (void)viewDidLoad {
UIImage *buttonImageNormal = [UIImage imageNamed:#"whiteButton.png"];
UIImage *stretchableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:12 topCapHeight:0];
UIImage *buttonImagePressed = [UIImage imageNamed:#"blueButton.png"];
UIImage *stretchableButtonImagePressed = [buttonImagePressed stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[loginButton setBackgroundImage:stretchableButtonImageNormal forState:UIControlStateNormal];
[loginButton setBackgroundImage:stretchableButtonImagePressed forState:UIControlStateHighlighted];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[usernameTextField release];
[passwordTextField release];
[super dealloc];
}
-(IBAction)textFieldDoneEditing:(id)sender {
[sender resignFirstResponder];
}
-(IBAction)backgroundTap:(id)sender {
[usernameTextField resignFirstResponder];
[passwordTextField resignFirstResponder];
}
-(IBAction)loginToAccount:(id)sender {
// bla bla bla... Login check process is done here
CustomersController *tmpViewController = [[CustomersController alloc] initWithNibName:#"Customers" bundle:nil];
self.customersController = tmpViewController;
[self presentModalViewController:tmpViewController animated:YES];
[self.view removeFromSuperview];
[tmpViewController release];
}
#end
As you can see above, in LoginController.m's loginToAccount method, I am checking the login info and then setting the new view controller for the "customers" sub-view.
Then I am removing the current "Login" subview from the super view but don't know how to add the new "Customers" sub view.
In MainWindow.xib, I have one view controller which is linked to ViewController class and it's the root contoller.
Any help is appreciated. Because I am new to Objective-C and iPhone programming, please do your best to explain considering a novice programmer :)
Thanks again.
Okay, let me answer my question. I just found the answer on StackOverFlow.com
In the view controller which is going to load the next view controller, just add these lines:
NextController *tmpViewController = [[NextController alloc] initWithNibName:#"NextView" bundle:nil];
tmpViewController.enteredUsername = usernameTextField.text;
tmpViewController.enteredPassword = passwordTextField.text;
I'd say that better way is to have separate class for storing globally needed data (and that would be compliant with MVC model).
For example you can store you login information in your MySoftwareAppDelegate, which is easily accessible with [[UIApplication sharedApplication] delegate] call from any part of your application.
It all depends on how serious the data you want to pass it. For a quick variable (maybe a settings change in a modal view controller) TamTam's solution makes the most sense. You alloc/init'ed it, you got the variable, why not access it properties? That same (modally presented) view controller might pass variables back via a delegate pattern.
If you're data needs to be system wide, you can use the singleton pattern. Using "[[UIApplication sharedApplication] delegate]" gets the application delegation (which is a singleton), and many people stuff their variables there for convenience. However, your app delegate wasn't designed for this, and so it's considered bad form. Create your own singleton if your apple isn't a quickie.
If you use a persistent data store like sql, plists or coredata, you can put your system wide data there.
Maybe this is a silly question but I'm having a problem with switching the view in a subview. Let me explain the code structure:
I have these class files:
/classes/MySoftwareAppDelegate.h
/classes/MySoftwareAppDelegate.m
/classes/ViewController.h
/classes/ViewController.m
/classes/LoginController.h
/classes/LoginController.m
/classes/CustomersController.h
/classes/CustomersController.m
I have these views:
/resources/MainWindow.xib
/resources/Login.xib
/resources/Customers.xib
In the AppDelegate, I have successfully inserted the sub view "Login" and it's displayed whenever the app starts.
In the login view, I enter my username and password and then click the "Login" button. When this button is clicked, an IBAction is triggered. In this IBAction, I want to change the current subview with the Customers.
Here's the code I have used:
MySoftwareAppDelegate.h
#import <UIKit/UIKit.h>
#class ViewController;
#interface MySoftwareAppDelegate : NSObject <UIApplicationDelegate> {
UIWindow *window;
ViewController *viewController;
}
#property (nonatomic, retain) IBOutlet UIWindow *window;
#property (nonatomic, retain) IBOutlet ViewController *viewController;
#end
MySoftwareAppDelegate.m
#import "MySoftwareAppDelegate.h"
#import "ViewController.h"
#implementation MySoftwareAppDelegate
#synthesize window;
#synthesize viewController;
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Override point for customization after application launch
[window addSubview:viewController.view];
[window makeKeyAndVisible];
}
- (void)dealloc {
[viewController release];
[window release];
[super dealloc];
}
#end
ViewController.h
#import <UIKit/UIKit.h>
#class LoginController;
#interface ViewController : UIViewController {
LoginController *loginController;
}
#property (nonatomic, retain) LoginController *loginController;
#end
ViewController.m
#import "ViewController.h"
#import "LoginController.h"
#implementation ViewController
#synthesize loginController;
- (void)viewDidLoad {
LoginController *tmpViewController = [[LoginController alloc] initWithNibName:#"Login" bundle:nil];
self.loginController = tmpViewController;
[self.view insertSubview:loginController.view atIndex:0];
[tmpViewController release];
[super viewDidLoad];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
if (self.loginController.view.superview == nil) {
self.loginController = nil;
}
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[loginController release];
[super dealloc];
}
#end
LoginController.h
#import <UIKit/UIKit.h>
#class CustomersController;
#interface LoginController : UIViewController {
UIButton *loginButton;
UITextField *usernameTextField;
UITextField *passwordTextField;
NSMutableString *available_credits;
NSString *current_xml_element;
CustomersController *customersController;
}
#property (nonatomic, retain) IBOutlet UIButton *loginButton;
#property (nonatomic, retain) IBOutlet UITextField *usernameTextField;
#property (nonatomic, retain) IBOutlet UITextField *passwordTextField;
#property (nonatomic, retain) NSMutableString *available_credits;
#property (nonatomic, retain) NSString *current_xml_element;
#property (nonatomic, retain) CustomersController *customersController;
-(IBAction)textFieldDoneEditing:(id)sender;
-(IBAction)backgroundTap:(id)sender;
-(IBAction)loginToAccount:(id)sender;
#end
LoginController.m
#import "LoginController.h"
#import "CustomersController.h"
#implementation LoginController
#synthesize loginButton;
#synthesize usernameTextField;
#synthesize passwordTextField;
#synthesize customersController;
- (void)viewDidLoad {
UIImage *buttonImageNormal = [UIImage imageNamed:#"whiteButton.png"];
UIImage *stretchableButtonImageNormal = [buttonImageNormal stretchableImageWithLeftCapWidth:12 topCapHeight:0];
UIImage *buttonImagePressed = [UIImage imageNamed:#"blueButton.png"];
UIImage *stretchableButtonImagePressed = [buttonImagePressed stretchableImageWithLeftCapWidth:12 topCapHeight:0];
[loginButton setBackgroundImage:stretchableButtonImageNormal forState:UIControlStateNormal];
[loginButton setBackgroundImage:stretchableButtonImagePressed forState:UIControlStateHighlighted];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc {
[usernameTextField release];
[passwordTextField release];
[super dealloc];
}
-(IBAction)textFieldDoneEditing:(id)sender {
[sender resignFirstResponder];
}
-(IBAction)backgroundTap:(id)sender {
[usernameTextField resignFirstResponder];
[passwordTextField resignFirstResponder];
}
-(IBAction)loginToAccount:(id)sender {
// bla bla bla... Login check process is done here
CustomersController *tmpViewController = [[CustomersController alloc] initWithNibName:#"Customers" bundle:nil];
self.customersController = tmpViewController;
[self.view removeFromSuperview];
[tmpViewController release];
}
#end
As you can see above, in LoginController.m's loginToAccount method, I am checking the login info and then setting the new view controller for the "customers" sub-view.
Then I am removing the current "Login" subview from the super view but don't know how to add the new "Customers" sub view.
In MainWindow.xib, I have one view controller which is linked to ViewController class and it's the root contoller.
Any help is appreciated. Because I am new to Objective-C and iPhone programming, please do your best to explain considering a novice programmer :)
Thanks again.
You are not adding any views to the view hierarchy, just removing the login view controller. If you want to add your customer view to the view hierarchy you should use:
CustomersController *tmpViewController = [[CustomersController alloc] initWithNibName:#"Customers" bundle:nil];
self.customersController = tmpViewController;
[self presentModalViewController:tmpViewController]
The above method will make sure that the viewWillLoad, didLoad etc are called on the account view controller. It will also take care of removing and adding the correct views to the view hierarchy for you.
I have a login controller ,and after the successful login i want to pass some string value to the menu page.however it does not work.the application crashes.
I have tried possible suggesstion of Ihuk and SAM from the link below
how to pass a string value from one view controller to another view controller
loginController.h:
#import <UIKit/UIKit.h>
#class RootViewController;
#class Menu;
#interface LoginController : UIViewController {
UIButton *login_Button;
UITextField *username_TextField;
UITextField *password_TextField;
RootViewController *mc1;
UINavigationController *navigationController;
Menu *mv1;
}
#property(nonatomic,retain) IBOutlet UIButton *login_Button;
#property(nonatomic,retain) IBOutlet UITextField *username_TextField;
#property(nonatomic,retain) IBOutlet UITextField *password_TextField;
#property(nonatomic,retain) RootViewController *mc1;
#property (nonatomic, retain) IBOutlet
UINavigationController *navigationController;
#property(nonatomic,retain)Menu *mv1;
- (IBAction)Login_Method:(id)sender;
-(id)initWithUserName:(NSString *)name ;
#end
loginController.m
#import "LoginController.h"
#import "Menu.h"
#import "ViewController.h"
#import "RootViewController.h"
#implementation LoginController
#synthesize mc1,mv1;
#synthesize login_Button,username_TextField,password_TextField;
#synthesize navigationController;
// Implement viewDidLoad to do additional setup after
// loading the view, typically from a nib.
- (void)viewDidLoad {
if (![self.navigationController isNavigationBarHidden])
[self.navigationController setNavigationBarHidden:YES animated:NO];
//[self presentModalViewController:navigationController animated:YES];
}
- (void)didReceiveMemoryWarning {
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
- (void)viewDidUnload {
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (IBAction)Login_Method:(id)sender
{
Menu *mv2 = [[Menu alloc] initWithUserName:#"Menu" bundle:nil];
//mv2.l1.text=#"aa"; //i tried this, but not work,so created initWithUserName
self.mv1=mv2;
[self presentModalViewController:mv1 animated:YES];
// [RootViewController release];
}
-(id)initWithUserName:(NSString *)name
{
self = [super init];
if (nil == self) {
return nil;
}
// display or store login info somewhere
[mv1.l1 setText:name];
return self;
}
-(BOOL)textFieldShouldReturn:(UITextField *)theTextField {
[theTextField resignFirstResponder];
return YES;
}
- (void)dealloc {
[username_TextField release];
[password_TextField release];
[super dealloc];
}
#end
Menu.h
#import <UIKit/UIKit.h>
#class Menu;
#interface Menu : UIViewController {
UILabel *l1;
UIButton *AccountSummary_Button;
UIButton *PayOffQuote_Button;
UIButton *PayBill_Button;
UIButton *Logout_Button;
UINavigationController *nv1;
}
#property(nonatomic,retain) IBOutlet UILabel *l1;
#property(nonatomic,retain) IBOutlet UIButton *AccountSummary_Button;
#property(nonatomic,retain) IBOutlet UIButton *PayOffQuote_Button;
#property(nonatomic,retain) IBOutlet UIButton *PayBill_Button;
#property(nonatomic,retain) IBOutlet UIButton *Logout_Button;
#property (nonatomic, retain) IBOutlet UINavigationController *nv1;
-(IBAction)ViewAccountSummary_method:(id)sender;
-(IBAction)ViewPayOffQuote_method:(id)sender;
-(IBAction)ViewPayBill_method:(id)sender;
-(IBAction)Logout_method:(id)sender;
#end
Menu.m
Make a property in your application delegate, for example, an NSString* called myString.
Then access it from the login controller and other controllers like so:
[[UIApplication sharedApplication] delegate].myString
You could, for example, set myString's value in the login controller:
[[UIApplication sharedApplication] delegate].myString = #"value";
You could read it in any other controller:
NSLog(#"myString is: %#", [[UIApplication sharedApplication] delegate].myString);
Additionally, some Cocoa style tips:
Do not capitalize class members (AccountSummary_Button etc.)
Do not capitalize class methods (ViewAccountSummary_method etc.)
The only thing you should capitalize are the classes themselves (Menu etc.).