I am new bee in iPhone. I have implmented using some tutorials, a Splash Screen before loading the UIViewController. Now i want to implement a NavigationController in my application and want to display a Splash Screen before it. Since I am new in Iphone so i did not get any tutotrials or guides to make a Splash Screen before loading a Root Navigation Controller.
I have seen many methods in which they over write the Default.png file and so on. I dont want to implement that one. I want a sperate UIView to have my custom Images and text in it and display that UI View as a Splash Screen
can anybody Guide me please.
Thanks in advance
Here you go buddy. Have fun and happy coding....
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
//Add a splash screen
UIImageView *imgv = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"splash.png"]];
imgv.userInteractionEnabled = YES;
[navigationController.view addSubview:imgv];
[imgv release];
[self performSelector:#selector(removeSplash:) withObject:imgv afterDelay:3.0];
[window addSubview:navigationController.view];
return YES;
}
- (void)removeSplash:(UIImageView *)imageView {
[imageView removeFromSuperview];
}
Use "self.window" to display the splash image first. If u simply write "window", the image will not be displayed and animated in the first view, since the image can't be directly linked to the window in that case. Write the following code in appdelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
MasterViewController *masterViewController = [[MasterViewController alloc] initWithNibName:#"MasterViewController" bundle:nil];
self.navigationController = [[UINavigationController alloc] initWithRootViewController:masterViewController];
self.window.rootViewController = self.navigationController;
[self.window makeKeyAndVisible];
UIImageView *imgv = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"themes.png"]];
imgv.userInteractionEnabled = YES;
[self.navigationController.view addSubview:imgv];
//[imgv release]; If you don't use ARC, uncomment this.
[self performSelector:#selector(removeSplash:) withObject:imgv afterDelay:3.0];
[self.window addSubview:self.navigationController.view];
return YES;
}
- (void)removeSplash:(UIImageView *)imageView
{
[imageView removeFromSuperview];
}
Related
I had migrated some apps to iPhone5 but with this one I am unable to solve it. I follow same steps but now I haven't got xib layout to set autosizing for window because TabBarViewController is programmatically defined as rootController. Always I am getting the annoying black front and top bars.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
tabBarController = [[UITabBarController alloc] init];
NSArray *viewControllers = [NSArray alloc];
viewControllers = [NSArray arrayWithObjects: nil];
// Attach them to the tab bar controller
[self.tabBarController setViewControllers:viewControllers animated:NO];
// Put the tabBarController's view on the window.
[window addSubview:[self.tabBarController view]];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyWindow];
self.splashController = [[splashViewController alloc] initWithNibName:#"splashViewController" bundle:nil aidioma:self.idioma];
[self.window addSubview:[splashController view]];
[self.window makeKeyAndVisible];
To enable 4-inch display support, you need to add a file to the root of your project named Default-568h#2x.png.
So easy to figure out, right? :)
I have created a new project "Empty Application" template in Xcode 4.3, it is having only two classes AppDelegate.h & .m
I checked with ARC to use automatic reference count while creating the app.
I added two new files "RootViewController" & "NewProjectViewControllers".
I implemented code to set navigation controller as follows in AppDelegate
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
rootViewController = [[MainViewController alloc] init];
UINavigationController *navigation = [[UINavigationController alloc] initWithRootViewController:rootViewController];
[self.window addSubview:navigation.view];
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
return YES;
}
and in hte home view (Root view controller) implemented as follows
- (void)viewDidLoad
{
[super viewDidLoad];
self.title = #"Projects";
UINavigationBar *navigationBar = [self.navigationController navigationBar];
[navigationBar setTintColor: [UIColor colorWithRed:10/255.0f green:21/255.0f blue:51/255.0f alpha:1.0f]];
//To set the customised bar item
UIButton *rightBarBtn = [UIButton buttonWithType:UIButtonTypeCustom];
[rightBarBtn setBackgroundImage:[UIImage imageNamed:#"plus_new.png"] forState:UIControlStateNormal];
rightBarBtn.frame=CGRectMake(0.0, 100.0, 30.0, 30.0);
[rightBarBtn addTarget:self action:#selector(addProject) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem* rightBarItem = [[UIBarButtonItem alloc] initWithCustomView:rightBarBtn];
self.navigationItem.rightBarButtonItem = rightBarItem;
// Do any additional setup after loading the view from its nib.
}
- (void) addProject
{
NewProjViewController *editProject = [[NewProjViewController alloc] init];
[self.navigationController pushViewController:editProject animated:YES];
NSLog(#"xxxxxxxxxxxxxxx");
}
But since i used ARC the navigation may dealoc immediately and it doesn't work, All the actions in method works except push to the next view
if i do same thing with out ARC it works fine
How to resolve this issue..? Thanks in advance
In Your appdelegate appdidfinishlaunching method, you have not set
self.window.rootviewcontroller to navigationController. In fact you did not set any rootViewController to Window. Thats why it is not being shown. Please set it before you start to see your ViewController on the screen.
The UIWindow rootViewController property is new with iOS4.
The older technique was to use addSubview.
The new, recommended technique is to set rootViewController.
Try this:
NewProjViewController *editProject = [[NewProjViewController alloc]initWithNibName:#"NewProjViewController" bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:editProject animated:YES];
[editProject release];
I am making an app in which I have put a default.png in the areas provided and added sleep(5); to my app delegate and currently it runs fine.
What I need to do is add more than one image when the app starts, so that I get one splash screen for 2.5 seconds and another one for 2.5 seconds.
How can I show 2 splash screens at start up?
Two splash screens are not possible. Create a viewcontroller with UIImageView filled with second image and show it for 2.5 seconds.
Just simply add your image to your view controller and after 2.5 second, remove it from your view.
You can easily implement your view on top of the main view but in your appDelegate. For example, if you want a splash image that fades out to the main view: (or a default image that seems to fade out: just put the same image on the splash screen and the default screen). This gives you also the right orientation as long as it is the main view's.
Just add it in your
application:(UIApplication *)application didFinishLaunchingWithOptions:
method:
UIImageView*imageView=[[UIImageView alloc]initWithImage:[UIImage imageNamed:#"your_default_image_or_First.png"]];
[[firstViewController view] addSubview:imageView];
[[firstViewController view] bringSubviewToFront:imageView];
[NSThread SleepForTimeInterval:(2.5)];
[imageView setImage:[UIImage imageNamed:#"your_default_image_or_Second.png"]]
// as usual
[self.window makeKeyAndVisible];
//now fade out splash image
[UIView transitionWithView:self.window duration:1.0f options:UIViewAnimationOptionTransitionNone animations:^(void){imageView.alpha=0.0f;} completion:^(BOOL finished){[imageView removeFromSuperview];}];
Hi please try with following code its really hwlp full for you dear i suggested to use this one.....
-(BOOL)application:(UIApplication )application didFinishLaunchingWithOptions:(NSDictionary)launchOptions
{
self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
// Override point for customization after application launch.
MasterViewController *masterViewController = [[[MasterViewController alloc] initWithNibName:#"MasterViewController" bundle:nil] autorelease];
self.navigationController = [[[UINavigationController alloc] initWithRootViewController:masterViewController] autorelease];
UIImageView *imageView = [[[UIImageView alloc] initWithFrame:self.window.bounds] autorelease];
UIImage *image = [UIImage imageNamed:#"Welcome.png"];
if (!image)
{
NSLog(#"Something went wrong trying to get the UIImage. Check filenames");
}
imageView.image = image;
[self.window addSubview:imageView];
[self.window makeKeyAndVisible];
[self performSelector:#selector(removeFirstSplash:) withObject:imageView afterDelay:3];
return YES;
}
-(void)removeFirstSplash:(UIImageView *)oldImageView
{
UIImageView *imageView = [[[UIImageView alloc] initWithFrame:self.window.bounds] autorelease];
UIImage *image = [UIImage imageNamed:#"Splash.png"];
imageView.image = image;
[self.window addSubview:imageView];
[self performSelector:#selector(removeSecondSplash:) withObject:imageView afterDelay:3];
[oldImageView removeFromSuperview];
}
-(void)removeSecondSplash:(UIImageView *)oldImageView
{
[self.window addSubview:self.navigationController.view];
[oldImageView removeFromSuperview];
}
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.