OK, so I'm trying to show Apple Game Center Leaderboards called from within my cocos2d game.
I've had some trouble doing so.
I did eventually stumble upon this and I implemented the following in one of my CCScene classes (I slightly modified the original code to prevent a compiler warning).
- (void)showLeaderboardForCategory:(NSString *)category
{
// Create leaderboard view with default Game Center style
leaderboardController = [[GKLeaderboardViewController alloc] init];
// If view controller was successfully created...
if (leaderboardController != nil)
{
// Leaderboard config
leaderboardController.leaderboardDelegate = self; // leaderboardController will send messages to this object
leaderboardController.category = category;
leaderboardController.timeScope = GKLeaderboardTimeScopeAllTime;
// Create an additional UIViewController to attach the GKLeaderboardViewController to
vc = [[UIViewController alloc] init];
// Add the temporary UIViewController to the main view
[[CCDirector sharedDirector].view.window addSubview:vc.view];
// Tell UIViewController to present the leaderboard
[vc presentModalViewController:leaderboardController animated:YES];
}
}
- (void)leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController
{
[vc dismissViewControllerAnimated:YES completion:nil];
}
And, it works! At least when I call it, it does display the Leaderboard properly.
The only problem is, when I tap "Done" on the Leaderboard and the modal view dismisses, my CCScene no longer responds to tap events.
What do I need to do to regain responsiveness?
Refer sample plain cocos2d project:
-(void)showLeaderboard
{
GKLeaderboardViewController *leaderboardViewController = [[GKLeaderboardViewController alloc] init];
leaderboardViewController.leaderboardDelegate = self;
AppController *app = (AppController*) [[UIApplication sharedApplication] delegate];
[[app navController] presentModalViewController:leaderboardViewController animated:YES];
[leaderboardViewController release];
}
Delegate Function:
-(void) leaderboardViewControllerDidFinish:(GKLeaderboardViewController *)viewController
{
AppController *app = (AppController*) [[UIApplication sharedApplication] delegate];
[[app navController] dismissModalViewControllerAnimated:YES];
}
In my Project, each of the user interaction events make a network call (Which is TCP, not HTTP). I need Activity Indicator to be global to show from a random UIViewController and hide from NetworkActivityManager Class (a custom class to handle network activities, Which is not a subclass of UIViewController or UIView).
After searching the web I found out that MBProgressHUD is used for the same purpose, but I wasn't able to find out an example on how would I use it globally. (By saying global I mean a singleton object of MBProgressHUD and class methods to SHOW and HIDE it.)
Following is what I have tried yet, but, failed:
In AppDelegate.h:
#property (nonatomic, retain) MBProgressHUD *hud;
In AppDelegate.m:
#synthesize hud;
In some random UIViewController object:
appDelegate.hud = [MBProgressHUD showHUDAddedTo:appDelegate.navigationController.topViewController.view animated:YES];
appDelegate.hud.labelText = #"This will take some time.";
And while hiding it, from NetworkActivityManager Class:
[MBProgressHUD hideHUDForView:appDelegate.navigationController.topViewController.view animated:YES];
This makes the project to crash after some time (due to memory issues.)
I am using ARC in my project and also, I am using the ARC version of MBProgressHUD.
Am I missing something?
Important Question:
Can I make MBProgressHUD work like UIAlertView? (Saying that I mean implementation of MBProgressHUD independent of UIView -- sa it uses showHUDAddedTo: to present itself) ???
Please Note: In the above code of hiding MBProgressHUD, View may be changed from what it was when showing MBProgressHUD.
Any Help greatly appreciated.
You could add this to a class of your liking:
+ (MBProgressHUD *)showGlobalProgressHUDWithTitle:(NSString *)title {
UIWindow *window = [[[UIApplication sharedApplication] windows] lastObject];
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:window animated:YES];
hud.labelText = title;
return hud;
}
+ (void)dismissGlobalHUD {
UIWindow *window = [[[UIApplication sharedApplication] windows] lastObject];
[MBProgressHUD hideHUDForView:window animated:YES];
}
This can be than called on any class. You don't need to keep a strong reference to the HUD when using those class convenience methods.
Depending on your specific situation you'll probably also want to handle cases where a new hud is requested before the other one is hidden. You could eater hide the previous hud when a new comes in or come up with some sort of queueing, etc.
Hiding the previous HUD instance before showing a new one is pretty straightforward.
+ (MBProgressHUD *)showGlobalProgressHUDWithTitle:(NSString *)title {
UIWindow *window = [[[UIApplication sharedApplication] windows] lastObject];
[MBProgressHUD hideAllHUDsForView:window animated:YES];
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:window animated:YES];
hud.labelText = title;
return hud;
}
NOTE...
as with many iOS issues, this is now drastically, totally out of date.
These days you certainly just use a trivial
Container view
for any issue like this.
Full container view tutorial for beginners .. tutorial!
MBProgressHUD was a miraculous solution back in the day, because there was a "drastic hole" in Apple's pipeline.
But (as with many wonderful things from the past), this is only history now. Don't do anything like this today.
Just FWIW, 2014, here's a very simple setup we use. Per David Lawson...
UIWindow *window = [[UIApplication sharedApplication] delegate].window
as Matej says, just use AppDelegate...
#define APP ((AppDelegate *)[[UIApplication sharedApplication] delegate])
AppDelegate.h
// our convenient huddie system (messages with a hud, spinner)
#property (nonatomic, strong) MBProgressHUD *hud;
-(void)huddie;
AppDelegate.m
-(void)huddie
{
// centralised location for MBProgressHUD
[self.hud hide:YES];
UIWindow *windowForHud = [[UIApplication sharedApplication] delegate].window;
self.hud = [MBProgressHUD showHUDAddedTo:windowForHud animated:YES];
self.hud.dimBackground = YES;
self.hud.minShowTime = 0.1;
self.hud.labelText = #"";
self.hud.detailsLabelText = #"";
}
Set the titles in your code where you are using it - because you very often change them during a run. ("Step 1" ... "Step 2" etc)
-(void)loadBlahFromCloud
{
[APP huddie];
APP.hud.labelText = #"Connecting to Parse...";
APP.hud.detailsLabelText = #"step 1/2";
[blah refreshFromCloudThen:
^{
[... example];
}];
}
-(void)example
{
APP.hud.labelText = #"Connecting to the bank...";
APP.hud.detailsLabelText = #"step 2/2";
[blah sendDetailsThen:
^{
[APP.hud hide:YES];
[... showNewDisplay];
}];
}
Change huddle to take the texts as an argument if you wish
You always want self.hud.minShowTime = 0.1; to avoid flicker
Almost always self.hud.dimBackground = YES; which also blocks UI
Conceptually of course you usually have to "slightly wait" to begin work / end work when you bring up such a process, as with any similar programming with the UI.
So in practice code will usually look like this...
-(void)loadActionSheets
{
[APP huddie];
APP.hud.labelText = #"Loading json from net...";
dispatch_after_secs_on_main(0.1 ,
^{
[STUBS refreshNowFromCloudThen:
^{
[APP.hud hide:YES];
dispatch_after_secs_on_main(0.1 , ^{ [self buildActionsheet]; });
}];
}
);
}
Handy macro ..
#define dispatch_after_secs_on_main( SS, BB ) \
dispatch_after( \
dispatch_time(DISPATCH_TIME_NOW, SS*NSEC_PER_SEC), \
dispatch_get_main_queue(), \
BB \
)
This is all history now :) https://stackoverflow.com/a/23403979/294884
This answer is what I've been using for 5-6 Apps now because it works perfectly inside blocks too. However I found a problem with it. I can make it shown, but can't make it disappear if a UIAlertView is also present. If you look at the implementation you can see why. Simply change it to this:
static UIWindow *window;
+ (MBProgressHUD *)showGlobalProgressHUDWithTitle:(NSString *)title {
window = [[[UIApplication sharedApplication] windows] lastObject];
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:window animated:YES];
hud.labelText = title;
return hud;
}
+ (void)dismissGlobalHUD {
[MBProgressHUD hideHUDForView:window animated:YES];
}
This will make sure you're removing the HUD from the same windows as it was shown on.
I found #Matej Bukovinski 's answer very helpful, since I just started using Swift and my purpose using his methods was to set a global font for the MBProgressHUD, I have converted the code to swift and am willing to share the code below:
class func showGlobalProgressHUDWithTitle(title: String) -> MBProgressHUD{
let window:UIWindow = UIApplication.sharedApplication().windows.last as! UIWindow
let hud = MBProgressHUD.showHUDAddedTo(window, animated: true)
hud.labelText = title
hud.labelFont = UIFont(name: FONT_NAME, size: 15.0)
return hud
}
class func dismissGlobalHUD() -> Void{
let window:UIWindow = UIApplication.sharedApplication().windows.last as! UIWindow
MBProgressHUD.hideAllHUDsForView(window, animated: true)
}
The above code is put into a global file where I keep all my global helpers and constants.
I've used it as below..Hope it helps you..
in appDelegate.m
-(void)showIndicator:(NSString *)withTitleString currentView:(UIView *)currentView
{
if (!isIndicatorStarted) {
// The hud will dispable all input on the view
self.progressHUD = [[[MBProgressHUD alloc] initWithView:currentView] autorelease];
// Add HUD to screen
[currentView addSubview:self.progressHUD];
self.progressHUD.labelText = withTitleString;
[window setUserInteractionEnabled:FALSE];
[self.progressHUD show:YES];
isIndicatorStarted = TRUE;
}
}
-(void)hideIndicator
{
[self.progressHUD show:NO];
[self.progressHUD removeFromSuperview];
self.progressHUD = nil;
[window setUserInteractionEnabled:TRUE];
isIndicatorStarted = FALSE;
}
From Random Views:-
[appDel showIndicator:#"Loading.." currentView:presentView.view];
Note: Considering the views this Question is getting I decided to post the the way I did choose as a solution. This is NOT an answer to my question. (Hence, the accepted answer remains accepted)
At that time I ended up using SVProgressHUD as it was very simple to integrate and use.
All you need to do is just drag the SVProgressHUD/SVProgressHUD folder into your project. (You may choose to go for cocoapods OR carthage, as well)
In Objective-C:
[SVProgressHUD show]; // Show
[SVProgressHUD dismiss]; // Dismiss
In Swift:
SVProgressHUD.show() // Show
SVProgressHUD.dismiss() // Dismiss
Additionally, Show and hide HUD needs to be executed on main thread. (Specifically you would need this to hide the HUD in some closure in background)
e.g.:
dispatch_async(dispatch_get_main_queue(), ^{
[SVProgressHUD dismiss]; // OR SHOW, whatever the need is.
});
There are additional methods for displaying custom messages with HUD, showing success/failure for short duration and auto dismiss.
MBProgressHUD still remains a good choice for developers. It's just that I found SVProgressHUD to suit my needs.
I was using the code from #Michael Shang and having all kinds of inconsistent behavior with showing HUDs. Turns out using the last window is unreliable as the iOS keyboard may just hide it. So in the majority of cases you should get the window using the AppDelegate as mentioned by #David Lawson.
Here's how in Swift:
let window = UIApplication.sharedApplication().delegate!.window!!
let hud = MBProgressHUD.showHUDAddedTo(window, animated: true)
However, with the above your HUD will show up behind the iOS keyboard (if they overlap). If you need your HUD to overlay the keyboard use the last window method.
In my case, what was happening is I would show the HUD then call resignFirstResponder() immediately hiding the window the HUD was added to. So this is something to be aware of, the only window guaranteed to stick around is the first one.
I ended up creating a method that could optionally add the HUD above the keyboard if needed:
func createHUD(size: CGSize, overKeyboard: Bool = false) -> MBProgressHUD {
let window = overKeyboard ? UIApplication.sharedApplication().windows.last!
: UIApplication.sharedApplication().delegate!.window!!
let hud = MBProgressHUD.showHUDAddedTo(window, animated: true)
hud.minSize = size
hud.bezelView.style = .SolidColor
hud.bezelView.color = UIColor(white: 0, alpha: 0.8)
return hud
}
To show the one MBProgressHUD at one time, you can check weather HUD is already added in same view or not. If not, then add the HUD otherwise do not add new HUD.
-(void)showLoader{
dispatch_async(dispatch_get_main_queue(), ^{
BOOL isHudAlreadyAdded = false;
UIWindow *window = [[[UIApplication sharedApplication] windows] lastObject];
NSEnumerator *subviewsEnum = [window.subviews reverseObjectEnumerator];
for (UIView *subview in subviewsEnum) {
if ([subview isKindOfClass:[MBProgressHUD class]]) {
isHudAlreadyAdded = true;
}
}
if(isHudAlreadyAdded == false){
[MBProgressHUD showHUDAddedTo:window animated:YES];
}
});
}
-(void)hideLoader{
dispatch_async(dispatch_get_main_queue(), ^{
UIWindow *window = [[[UIApplication sharedApplication] windows] lastObject];
[MBProgressHUD hideHUDForView:window animated:YES];
});
}
Add these two methods to show or hide loader in your singleton class
- (void)startLoaderWithText:(NSString *)title View:(UIView *)view{
progressHud = [MBProgressHUD showHUDAddedTo:view animated:YES];
progressHud.labelText = title;
progressHud.activityIndicatorColor = [UIColor grayColor];
progressHud.color = [UIColor clearColor];
[progressHud show:YES];
}
- (void)stopLoader{
[progressHud hide:YES];
}
I am trying to present a UIDocumentInteractionController from a navigation controller, when the user selects a file from the tableView.
The interactionControllerWithURL returns NO and the delegate method documentInteractionControllerViewControllerForPreview is never called and the documentInteraction controller does not appear.
The following code is executed when the user selects an item in table:
NSURL *fileURL;
fileURL = (NSURL *)[[DataMng sharedMng] getFileInFolder:self.navigationItem.title atRow:indexPath.row type:type];
if (self.docInteractionController == nil){
self.docInteractionController = [UIDocumentInteractionController interactionControllerWithURL:fileURL];
if (!self.docInteractionController) {
NSLog(#"Selected a file with estension not supported for visualization");
return;
}
self.docInteractionController.delegate = self;
}else{
self.docInteractionController.URL = fileURL;
}
if(! [self.docInteractionController presentPreviewAnimated:YES]){
NSLog(#"ERROR in presenting preview");
}
The delegate controller (self) conforms with UIDocumentInteractionControllerDelegate protocol and is a navigation controller inside a Tabbar controller.
Any ideas will be welcome
I answer my own question:
the form I was launching the docInteractionController was correct, the problem was in the file url, which lack the correct extension (.pdf in my case) and in the controller UTI, which must of the extended form (com.adobe.pdf).
Once correctly set the preview was displayed without problems.
you use these methods to show UIDocumentInteractionController:-
-(UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
return [[[[UIApplication sharedApplication] delegate]window]rootViewController];
}
-(void)documentInteractionControllerDidEndPreview: (UIDocumentInteractionController *)controller
{
self.navigationController.navigationBarHidden = YES;
}
if(! [self.docInteractionController presentPreviewAnimated:YES]){
NSLog(#"ERROR in presenting preview");
}
Think, this is not the right way to present document interactionController. Try setting the below code
CGRect rect = CGRectMake(0, 0, 0, 0);
[self.docInteractionController presentOpenInMenuFromRect:rect inView:self.view animated:YES];
Hope this helps you.
I have implement Wikitude SDK and I manage to initialize using this code:
-(IBAction)launchAR:(id)sender{
wikitudeAR = [[WikitudeARViewController alloc] initWithDelegate:self applicationPackage:nil applicationKey:nil applicationName:nil developerName:nil];
}
- (void) verificationDidSucceed {
BuddyFinderAppDelegate *appDel = (BuddyFinderAppDelegate *)[[UIApplication sharedApplication] delegate];
[appDel.window addSubview: [wikitudeAR start]];
[window makeKeyAndVisible];
}
How I will go back to my MainViewController View?
(I want to call it from object "custombutton")
I guess your WikitudeARViewController delegate is application delegate.
1) Implement your own View controller , from where you want to launch AR Browser (on button click , preferably).
2) Instantiate WikitudeARViewController from your ViewController(button event) and making ViewController as delegate.
3) make view returned from [wikitudeAR start] to the ViewController.view (and not window.view).
Hope this helps.
you can use CustomMenuButtonDelegateImpl1.m
#implementation CustomMenuButtonDelegateImpl1
- (void) customMenuButtonPressed:(WTPoi *)currentSelectedPoi {
//NSLog(#"addpoi");
[[WikitudeARViewController sharedInstance] hide];
[UIApplication sharedApplication].statusBarHidden = NO;
}
#end
and it woroks very well
My issue is that the back button will not restore its visibility if my web request does not finish before or soon after ViewWillAppear has fired.
I have a navigation based iPhone 4.0 application used a simple Root and Detail view setup.
I am working with data that is returned from a webservice so when I push my detail view in its ViewDidLoad function I call my web service method in a separate thread and the Iphone lifecycle does its thing on the main thread. I must disable/hide the back button until the web request has finished (or failed) so I call self.navigationItem.hidesBackButton = YES; in ViewDidLoad and self.navigationItem.hidesBackButton = NO; in the delegate function which fires once my web request has finished or failed.
I already tried the following:
[self.navigationItem performSelectorOnMainThread:#selector(setHidesBackButton:) withObject:NO waitUntilDone:NO];
[self.navigationItem setHidesBackButton:NO];
[self.view setNeedsDisplay];
[self.navigationController.view setNeedsDisplay];
UINavigationItem *nav = self.navigationItem;
nav.hidesBackButton = NO;
Root View Controller Push Code:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
ArticleViewController *articleViewController = [[ArticleViewController alloc] initWithNibName:#"ArticleViewController" bundle:nil];
NewsArticle *newsArticle = [newsItems objectAtIndex:indexPath.row];
articleViewController.articleID = newsArticle.newsID;
[self.navigationController pushViewController:articleViewController animated:YES];
[newsArticle release];
[articleViewController release];
}
Details View Controller Code:
- (void)viewDidLoad {
[super viewDidLoad];
self.navigationItem.hidesBackButton = YES;
id scrollView = [[[self webContent] subviews] objectAtIndex:0];
if([scrollView respondsToSelector:#selector(setBackgroundColor:)] )
{
[scrollView performSelector:#selector(setBackgroundColor:)
withObject:[UIColor blackColor]];
}
[self getNewsArticle];
}
//Fires when the web request has finished
- (void) finish:(NewsArticle *)newsArticleFromSvc {
self.navigationItem.hidesBackButton = NO;
self.newsArticle = newsArticleFromSvc;
[self bindNewsArtice];
}
Any help is GREATLY appreciated I can hardly ##$&^ believe that hiding a button in a UI could cause me this much wasted time.
Try use this method of UINavigationItem :
- (void)setHidesBackButton:(BOOL)hidesBackButton animated:(BOOL)animated
I wasn't able to solve this problem. Instead I tweaked my App Logic to make hiding he back button not necessary.