I'm working on an application in which i'm setting the rootViewController as,
if(token){
UIStoryboard *sb = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIViewController* viewController = [sb instantiateViewControllerWithIdentifier:#"Home"];
UINavigationController *navigationController = [[UINavigationController alloc]
initWithRootViewController:viewController];
[navigationController setNavigationBarHidden:YES animated:NO];
self.window = [[UIWindow alloc]
initWithFrame:[[UIScreen mainScreen] bounds]];
[self.window makeKeyAndVisible];
[self.window setRootViewController:navigationController];
}
when this piece of code works the orientation is not working properly, the status bar rotates but the view stays the same.
This works perfectly in iOS7.1 and below but when it runs on iOS8.1 we get this issue.
Related
In my app delegate i set up another screen (for airPlay).
When i create a second window and assign the Second screen to it and run the app the TableView in my storyboard turns to a black colour. Its as if the tableView is not rendering correctly. I have isolated the problem to :
self.HDTVwindow.screen=[[UIScreen screens] objectAtIndex:1];
where the HDTVWindow is the second window for my airplay app. When i comment out this code the storyboard runs fine and my UITableView is nice and white. Am i confusing the storyboard by making two UIWindows in the appDelegate, even though they are assigned to different screens??
For my appDelegate see below.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
if ([[UIScreen screens] count]>1)
{
CGRect frame = [[UIScreen screens]objectAtIndex:1].bounds;
self.HDTVwindow = [[UIWindow alloc] initWithFrame:frame];
UIImage* astonLogo=[UIImage imageNamed:#"AstonUni720p.png"];
UIImageView* astonLogoView=[[UIImageView alloc] initWithImage:astonLogo];
astonLogoView.frame=frame;
[self.HDTVwindow addSubview:astonLogoView];
self.HDTVwindow.hidden = NO;
self.HDTVwindow.screen=[[UIScreen screens] objectAtIndex:1];//PROBLEM!!
}
// Set Up Storyboard
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:#"Main" bundle:nil];
UIViewController *mainViewController = [storyboard instantiateInitialViewController];
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.window.rootViewController = mainViewController;
[self.window makeKeyAndVisible];
return YES;
}
The problem disapears when ran with the iPad and an apple TV, it seems there might a bug in the simulator. In future i shall always run my code on real ios devices.
I have an example where I have animation when the app starts. At the start an image is displayed, then moves from right to left, then disappears. Below is the code I have.
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.viewwController = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
self.window.rootViewController = self.viewwController;
[self.window makeKeyAndVisible];
//add the image to the forefront...
UIImageView *splashImage = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 320, 480)];
[splashImage setImage: [UIImage imageNamed:#"Default"]];
[self.window addSubview:splashImage];
[self.window bringSubviewToFront:splashImage];
//set an anchor point on the image view so it opens from the left
splashImage.layer.anchorPoint = CGPointMake(0, 0.5);
//reset the image view frame
splashImage.frame = CGRectMake(0, 0, 320, 480);
//animate the open
[UIView animateWithDuration:1.0
delay:0.6
options:(UIViewAnimationCurveEaseOut)
animations:^{
splashImage.layer.transform = CATransform3DRotate(CATransform3DIdentity, -M_PI_2, 0, 1, 0);
} completion:^(BOOL finished){
//remove that imageview from the view
[splashImage removeFromSuperview];
}];
return YES;
}
What I want is to do this using a storyboard, so I changed the code as below.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
MyBookViewController *myNew = [[MyBookViewController alloc] init];
self.myBookViewController = myNew;
self.window.rootViewController = self.myBookViewController;
[self.window makeKeyAndVisible];
However I don't see my viewcontroller (MyBookViewController). I only see the image moving from right to left, then a black screen.
Any idea what is going wrong?
I just did it myself with help of this SO question.
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIStoryboard *mainStoryboard = [UIStoryboard storyboardWithName:#"MainStoryboard"
bundle: nil];
MyBook001ViewController *controller = (MyBook001ViewController*)[mainStoryboard
instantiateViewControllerWithIdentifier: #"firstStory"];
self.window.rootViewController = controller;
[self.window makeKeyAndVisible];
i think it is because of you are allocating new MyBookViewController. instead it you have to give reference of storyboard, on which you have your UI design for MyBookViewController, like this
MyBookViewController *myNew=[self.storyboard instantiateViewControllerWithIdentifier:#"MyBookViewController"];
be sure for ViewController identifier
UPdate1:
try with
MyBookViewController *myNew=[self.window.rootViewController];
I am using Xcode 4.5 and iOS 6.0, I have selected the default single view template from the xcode, I just want to add the label on the application window but I am unable to do so. Please correct me.
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
self.viewController = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
self.window.rootViewController = self.viewController;
label =[[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 20)];
label.text = #"Test";
[label setBackgroundColor:[UIColor whiteColor]];
[self.window addSubview:label];
[self.window bringSubviewToFront:label];
[self.window makeKeyAndVisible];
return YES;
}
PS - I want my label on top of my ViewController view i.e. on the window so it will be always there despite changes in the views presented by window. I dont want to only show the label here.
I got the answer
[self.window.rootViewController.view addSubview:label];
Thanks all for giving the pointers.
Just Remove the RootviewController.
- (BOOL)application:(UIApplication *)application
didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// Override point for customization after application launch.
label =[[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 20)];
label.text = #"Test";
[label setBackgroundColor:[UIColor whiteColor]];
[self.window addSubview:label];
[self.window bringSubviewToFront:label];
[self.window makeKeyAndVisible];
return YES;
}
if you dont want to only show the label here then use like below.
self.viewController = [[ViewController alloc] initWithNibName:#"ViewController" bundle:nil];
self.window.rootViewController = self.viewController;
[self.Viewcontroller.view addSubview:label];
Add the label to self.window.rootViewController.view instead of self.window
UILabel *label =[[UILabel alloc] initWithFrame:CGRectMake(100, 100, 200, 20)];
label.text = #"Test"; [label setBackgroundColor:[UIColor whiteColor]];
[self.window.rootViewController.view addSubview:label];
After some great trouble, I was finally able to load my first Navigation / ViewController, only now none of the sub items are clickable. I mean, I have a two text fields, two buttons, and a switch, but none of them do anything when clicked. I know it is not a problem with my xib file, as these elements behave in the xib simulator for iPad.
This is all the code my application uses so far, and I don't see why it should not be clickable.
MainWindow.xib = empty nib file
int retVal = UIApplicationMain(argc, argv, nil,
#"iPadAppDelegate");
application: didFinishLaunchingWithOptions:
self.window = [[UIWindow alloc] init];
UIViewController *login = [[UIViewController alloc] initWithNibName:#"iPadLoginView" bundle:nil];
UINavigationController *nav_controller = [[UINavigationController alloc] initWithRootViewController:login];
self.window.rootViewController = nav_controller;
[self.window makeKeyAndVisible];
return YES;
replace your
self.window = [[UIWindow alloc] init];
with
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
Replace
self.window.rootViewController = nav_controller;
with
[self.window addSubview:nav_controller.view];
I have a uitabbarcontroller with uinavigation controller for 2 view controllers. i am trying to have a uinavigationitem (something like "settings" that exist in most of the apps). I am wondering if I need to define this item in every view (tabOneViewController, tabTwoViewController, etc.), or is there a global way to define this buttons so it will stay when I move between different tabs?
here is how I create my tab/nav controllers in my AppDelegate:
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UIViewController *viewController1 = [[FirstTab alloc] initWithNibName:#"FirstTab" bundle:NSBundle.mainBundle];
UINavigationController *firstNavController = [[UINavigationController alloc]initWithRootViewController:viewController1];
UIViewController *viewController2 = [[SecondTab alloc] initWithNibName:#"SecondTab" bundle:NSBundle.mainBundle];
UINavigationController *secondNavController = [[UINavigationController alloc]initWithRootViewController:viewController2];
self.tabBarController = [[UITabBarController alloc] init];
self.tabBarController.viewControllers = [NSArray arrayWithObjects:firstNavController, secondNavController, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];