Present multiple Images in fullscreen - ios

Question

I'm looking for the name of the class Apple uses to present a number of Images in full screen (similar to the AppStore-App on iPad when you tap the preview images of any App. In the bottom of the view is a bar with little preview Images from all the Images).
If this is a public class, how is it called and is it available for iPhone as well?

Answer 1

Ok so I have created my own ImageFullScreenPresenter.
What is important for anybody trying to build their own ImageFullScreenPresenter is to make it a subclass of UIViewController.
PKImageFullScreenPresenter *pkImageFullScreen = [[[PKImageFullScreenPresenter alloc] initWithNibName:#"PKImageFullScreenPresenter" bundle:nil imageArray:myImageArray] autorelease];
AppDelegate *appDel = (AppDelegate *)[UIApplication sharedApplication].delegate;
UIViewController *rootViewController;
if (DEVICE_IS_IPAD) {
//since the splitviewcontroller is the rootviewcontroller on ipad i set it as my temporary rootViewcontroller for ipad
rootViewController = appDel.splitViewController;
}
if (DEVICE_IS_IPHONE) {
//on iphone i need the tabbarcontroller as temporary rootviewcontroller
rootViewController = appDel.tabBarController;
}
//set the alpha to zero, so it can fade in animated
pkImageFullScreen.view.alpha = 0;
//save the temporary rootViewController, so I can set it back when dissmissing the ImageViewController
pkImageFullScreen.superViewController = rootViewController;
//hide the status bar
[[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:UIStatusBarAnimationFade];
//setting black backgroundcolor
[UIApplication sharedApplication].keyWindow.backgroundColor = [UIColor blackColor];
//init the fullscreencontroller as rootview
[[UIApplication sharedApplication].keyWindow setRootViewController:[[[UINavigationController alloc] initWithRootViewController:pkImageFullScreen] autorelease]];
//smooth fade animation
[UIView animateWithDuration:.5f
animations:^(void){
pkImageFullScreen.view.alpha = 1;
}];
Doing so, allows me to present the ImageFullScreenPresenter on iPhone and iPad, no matter you are using a window-based app, a splitViewController on iPad or whatever.
When dismissing the ImageFullScreenPresenter i set the temporary saved rootViewController back with an animation:
- (void)closeView:(id)sender{
[UIView animateWithDuration:.5f
animations:^(void){
self.view.alpha = 0;
}completion:^(BOOL finished){
//show the statusbar again
[[UIApplication sharedApplication] setStatusBarHidden:NO withAnimation:UIStatusBarAnimationFade];
//setting the statusbarstyle
[[UIApplication sharedApplication] setStatusBarStyle:UIStatusBarStyleBlackTranslucent];
//set the backgroundcolor for the window
[UIApplication sharedApplication].keyWindow.backgroundColor = GLOBAL_TINT_COLOR; //my custom color vor all GUI Objects
//set the temporary rootViewController back
[[UIApplication sharedApplication].keyWindow setRootViewController:superViewController];
//sometimes the navigationbar hides the statusbar, the following two lines help me out
[[UIApplication sharedApplication].keyWindow.rootViewController.navigationController setNavigationBarHidden:YES];
[[UIApplication sharedApplication].keyWindow.rootViewController.navigationController setNavigationBarHidden:NO];
}];
}
I dont know if this is the right way to go, but it works perfectly finefor me. I do not have to worry abput any rotation issues like I would have when i directly add this to [UIApplication sharedApplication].keyWindow.
I hope this helps others who try do achieve the same :)