Backstory
Im currently creating an custom class that handles/mimics the look of the Facebook menu app,
i have created this functionality in a separate project (working) and thought it would be a good idea to make the code reusable.
The problem
I'm getting an "unrecognised selector sent to instance" error, while i'm really certain i have implemented the method "handle" i cannot figure out what goes wrong. if anyone would be kind enough to help me. or push me in the right direction
Edit
The full error generated by my output window
2013-03-06 19:56:39.520 SwipeMenuProject[14347:c07] -[__NSArrayM handle:]: unrecognized selector sent to instance 0x7558310
The Code
UISwipeMenuControl.m
#import "UISwipeMenuControl.h"
#implementation UISwipeMenuControl
#synthesize frontWindow = _frontWindow, backWindow = _backWindow, navController = _navController, btnHandle = _btnHandle;
-(id)init
{
self.frontWindow = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.backWindow = [[UIWindow alloc] initWithFrame:CGRectMake(-61,0,[[UIScreen mainScreen] bounds].size.width,[[UIScreen mainScreen] bounds].size.height)];
self.btnHandle = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[self.btnHandle setFrame:CGRectMake(0, 0, 60, 20)];
[self.btnHandle setTitle:#"Handle" forState:UIControlStateNormal];
UIPanGestureRecognizer * dragGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:#selector(handle:)];
[self.btnHandle addGestureRecognizer:dragGesture];
UIViewController * viewController = [[UIViewController alloc] initWithNibName:nil bundle:nil];
[viewController setTitle:#"Swipe Menu"];
[viewController.navigationItem setLeftBarButtonItem:[[UIBarButtonItem alloc] initWithCustomView:self.btnHandle]];
self.navController = [[UINavigationController alloc] initWithRootViewController:viewController];
[self.frontWindow setRootViewController:self.navController];
return self;
}
-(UIWindow *)getFrontWindow
{
return self.frontWindow;
}
-(UIWindow *)getBackWindow
{
return self.backWindow;
}
-(UINavigationController *)getNavigationController
{
return self.navController;
}
-(void) setRootViewController:(UIViewController *)viewController
{
self.navController = [[UINavigationController alloc] initWithRootViewController:viewController];
[viewController.navigationItem setLeftBarButtonItem:[[UIBarButtonItem alloc] initWithCustomView:self.btnHandle]];
[self.frontWindow setRootViewController:self.navController];
}
-(void)handle:(id)sender
{
//unrelated code here
}
Appdelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UISwipeMenuControl * swipeMenu = [[UISwipeMenuControl alloc] init];
CustomViewController * cViewController = [[CustomViewController alloc] initWithNibName:nil bundle:nil];
[swipeMenu setRootViewController:cViewController];
self.window = [swipeMenu getFrontWindow];
[self.window setBackgroundColor:[UIColor redColor]];
[self.window makeKeyAndVisible];
return YES;
}
It looks like this is an ownership/memory issue. UISwipeMenuControl seems to be deallocated when the recognizer sends its action.
Enable zombies to investigate if that's the problem.
Related
Compiling and running using iOS 7 - getting warning message: "Presenting view controllers on detached view controllers is discouraged" while presenting modal view controller. I have learned that viewcontrollers with linked using the child viewcontroller pattern will not produce warning. Can someone suggest way to link nested viewcontrollers using the child viewcontroller pattern to avoid warning message.
(void)applicationDidFinishLaunching:(UIApplication *)application
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
if (UI_USER_INTERFACE_IDIOM() == UIUserInterfaceIdiomPad)
{
self.loginRootviewController = [[MainViewController alloc] initWithNibName:#"MainViewController-iPad" bundle:nil];
}
else
{
self.loginRootviewController = [[MainViewController alloc] initWithNibName:#"MainViewController" bundle:nil];
}
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:self.loginRootviewController];
DDMenuController *rootController = [[DDMenuController alloc] initWithRootViewController:navController];
_menuController = rootController;
AppMainMenuViewController *leftController = [[AppMainMenuViewController alloc] init];
rootController.leftViewController = leftController;
self.loginRootviewController.delegateLogin = leftController;
self.window.rootViewController = rootController;
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
}
instead of using DDMenuViewController use SWRevealViewController. It is updated for iOS 7 and has more functionality than DD
I want to show modal view in the start of the app but it doesn't appear. This is my code:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[self initDataBase];
CustomerModel *customer = [[[CustomerPersistor alloc] init] getLoggedCustomer];
self.window.rootViewController = self.tabBarController;
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
UIViewController *profileViewController = [[[ProfileViewController alloc] initWithNibName:#"ProfileViewController" bundle:nil] autorelease];
profileViewController.title = #"Profile";
UINavigationController *profileNavigation = [[[UINavigationController alloc] initWithRootViewController:profileViewController] autorelease];
self.tabBarController = [[[UITabBarController alloc] init] autorelease];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:profileNavigation, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];
if(customer == nil) { NSLog(#"HO");
ViewController *login = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
//login.delegate = self.tabBarController.view;
[self.viewController presentModalViewController:[[ViewController alloc] initWithNibName:#"ViewController" bundle:nil] animated:YES];
}
return YES;
}
How can I fix it?
First, there doesn't appear to be a self.viewController property that is set, and you're instantiating the same "ViewController" twice. This is all wrong:
ViewController *login = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
//login.delegate = self.tabBarController.view;
[self.viewController presentModalViewController:[[ViewController alloc] initWithNibName:#"ViewController" bundle:nil] animated:YES];
Try moving this code to your viewDidLoad of your profileViewController...i.e. let the TabBarController load along with its first tab's view controller.
Initiate an instanse from the model view like this:
modelView = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
Please follow the list below:
Set the viewController model presented style
[modelView setModalPresentationStyle:UIModalPresentationPageSheet];
Then present it using:
[self.viewController presentModalViewController:floorView animated:YES];
Then, set the size and location of the model controller like this:
modelView.view.superview.bounds = CGRectMake(0, 0, 700, 550);//it's important to do this after presentModalViewController
modelView.view.superview.center = self.view.superview.center;//self.view assumes the base view is doing the launching, if not you might need self.view.superview.center etc.
Hope this help you.
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.
I need to implement the following and I wanted to know the correct way to do it.
when the iPhone application launches, I need to show a logo image for 2 seconds followed by showing a login screen that allows the person to login or create an account. Once the person logs in, i need to show a tabbarcontroller menu options.
This is how I'm currently doing it:
In the AppDelegate:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
LoginViewController *viewController0 = [[LoginViewController alloc] initWithNibName:#"LoginViewController" bundle:nil];
UINavigationController *aNavigationController0 = [[UINavigationController alloc] initWithRootViewController:viewController0];
self.window.rootViewController = aNavigationController0;
// I also implement an iVar of the UITabBarController here...
// ....
}
The #implementation:
#implementation LoginViewController
- (IBAction)createNewAccountButtonClicked:(id)sender {
AppDelegate *delegate = [[UIApplication sharedApplication] delegate];
delegate.window.rootViewController = delegate.tabBarController;
}
So, my questions are:
Is this the correct way to show the tabbar for my purpose?
In this scheme of things, I cannot show the logo animated. Any pointers on how to do this?
The code below assumes you're using ARC, if you're not then you'll need to do your MRC.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Override point for customization after application launch.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.tabBarController = [[UITabBarController alloc] initWithNibName:nil bundle:nil];
self.window.rootViewController = self.tabBarController;
LoginViewController *loginViewController= [[LoginViewController alloc] initWithNibName:nil bundle:nil];
loginViewController.delegate = self;
UINavigationController *loginNavCont = [[UINavigationController alloc] initWithRootViewController:loginViewController];
[self.tabBarController presentModalViewController:loginNavCont animated:NO];
UIImageView *splashScreen = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"Default"]];
[self.window addSubview:splashScreen];
[UIView animateWithDuration:0.5
delay:2.0
options:0
animations:^{
splashScreen.alpha = 0.0;
}
completion:^(BOOL finished) {
[splashScreen removeFromSuperview];
}];
[self.window makeKeyAndVisible];
return YES;
}
- (void)loginViewControllerShouldBeDismissed:(UIViewController *)viewController
{
[self.tabBarController dismissModalViewControllerAnimated:YES];
}
I have a problem with switching from one viewcontroller to another.
Here is what I have :
In my "AppDelegate_iPad.m" :
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
CGRect frame = [UIScreen mainScreen].bounds;
window = [[UIWindow alloc] initWithFrame:frame];
window.backgroundColor = [UIColor blackColor];
LoginViewController_iPad *loginView = [[LoginViewController_iPad alloc] initWithNibName:#"LoginViewController_iPad" bundle:nil];
[window addSubview:loginView.view];
[self.window makeKeyAndVisible];
return YES;
}
That works. Now I have a login button on that screen and when pressed it calles this :
- (IBAction)doPressLoginButton
{
DebugLog(#"doPressLoginButton");
MenuViewController_iPad *menuView = [[MenuViewController_iPad alloc] initWithNibName:#"MenuViewController_iPad" bundle:nil];
[self.navigationController pushViewController:menuView animated:YES];
[menuView release];
}
The problem is that nothing happends. I assume I am missing the actual navigationconroller ?!
Hope that anyone can help.
Thank you
You should create a UINavigationController instance variable in your app delegate. Then, make sure you synthesize it and release it in your dealloc method.
Your implementation of application:didFinishLaunchingWithOptions: could look like this:
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// window is usually an IBOutlet
CGRect frame = [UIScreen mainScreen].bounds;
window = [[UIWindow alloc] initWithFrame:frame];
window.backgroundColor = [UIColor blackColor];
LoginViewController_iPad *loginView = [[LoginViewController_iPad alloc] initWithNibName:#"LoginViewController_iPad" bundle:nil];
navigationController = [[UINavigationController alloc] initWithRootViewController:loginView];
[loginView release];
[self.window addSubview:navigationController.view];
[self.window makeKeyAndVisible];
return YES;
}
Now you'll be able to use self.navigationController.
I assume I am missing the actual navigationconroller ?!
you are right. :D
self.navigationController returns nil if you don't set up an NavigationController.
And any messages send to nil object will be ignored.
If you only need switch from one to another.
using
[self presentModalViewController:modalViewController animated:YES];
instead.