I have a buttono in the navigation item which action is BUTTON_ACTION. By pressing it, MBProgressHUD is activate and the action work. but the "dimBackground" that make "hidden" the scrren, doe not work on the navigationbar, and the button can be pressed again during the MBProgressHUD.
The code is:
HUD = [[MBProgressHUD alloc] initWithView:self.view];
[self.view addSubview:HUD];
// Regiser for HUD callbacks so we can remove it from the window at the right time
HUD.delegate = self;
HUD.labelText=#"Buscando Bares...";
HUD.dimBackground = YES;
// Show the HUD while the provided method executes in a new thread
[HUD showWhileExecuting:#selector(BUTTON_ACTION) onTarget:self withObject:nil animated:YES];
I tryed to use:
HUD = [[MBProgressHUD alloc] initWithView:self.navigationController.view];
[self.navigationController.view addSubview:HUD];
Any idea about that? thanks in advance.
To make the MBProgressHUD being displayed above all UI controls including the UINavigationBar you must do this:
HUD = [[MBProgressHUD alloc] initWithWindow:self.view.window];
[self.view.window addSubview:HUD];
#ararog is right, but it's also simple to just do
_progressHUD = [MBProgressHUD showHUDAddedTo:self.view.window animated:YES];
Related
In iOS 5 and 6 I was doing this in the viewWillAppear method in my view controller:
UIViewController *c = [[UIViewController alloc] init];
//To avoid the warning complaining about the view not being part of the window hierarchy
[[[TWNavigationManager shared] window] addSubview:c.view];
[self presentModalViewController:c animated:NO];
[self dismissModalViewControllerAnimated:NO];
[c.view removeFromSuperview];
I also added this method in the app delegate
- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window
{
return [[TWNavigationManager shared] supportedInterfaceOrientationsForTopViewController];
}
Which basically forwards that call to the top view controller.
That caused auto-rotation methods to be called for my view controller and then I was able to force landscape orientation for just that view controller.
Now in iOS 7 that code doesn't work anymore. A white view appears full-screen.
What would be the proper approach in iOS7?
Thanks in advance.
Had the same problem and managed to fix it by dismissing the presented modal view animated:YES.
[self dismissViewControllerAnimated:YES completion:nil];
Hope that helps!
My solution involves what Andrey Finayev suggested, but also I had to set another transition style otherwise I was getting blank screen after the dismiss animation finished.
UIViewController *mVC = [[UIViewController alloc] init];
mVC.modalPresentationStyle = UIModalPresentationFullScreen;
mVC.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self.navigationController presentViewController:mVC animated:NO completion:^{
[self.navigationController dismissViewControllerAnimated:YES completion:^{
}];
}];
To prevent the little "flashing" from mdonia solution, I added a dispatch_after and was able to dismiss the dummy modal viewController with animation:NO
UIViewController *dummyModalVC = [UIViewController new];
[dummyModalVC setModalPresentationStyle:UIModalPresentationFullScreen];
[dummyModalVC setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
[dummyModalVC.view setBackgroundColor:[UIColor purpleColor]];
[self presentViewController:dummyModalVC animated:NO completion:^{
double delayInSeconds = 0.001f;
dispatch_time_t popTime = dispatch_time(DISPATCH_TIME_NOW, (int64_t)(delayInSeconds * NSEC_PER_SEC));
dispatch_after(popTime, dispatch_get_main_queue(), ^(void){
[dummyModalVC dismissViewControllerAnimated:NO completion:^{}];
});
}];
Looks of course still like an ugly workaround, but I didn't found a better solution in the given time… ;(
The following code is from a sample demo.
HUD = [[MBProgressHUD alloc] initWithView:self.navigationController.view];
[self.navigationController.view addSubview:HUD];
HUD.delegate = self;
HUD.labelText = #"Loading";
[HUD showWhileExecuting:#selector(myTask) onTarget:self withObject:nil animated:YES];
It uses .xibs as it views. I'm creating an application that uses storyboards. Thus there is no navigationController for the initWithView method when instantiating HUD. Is there any way to implement a HUD without using .xibs and a navigationController. I've tried passing both "self" and "self.view" but they don't work. The class that this is in is the ViewController.m class and it is a UIViewController class. So I don't see why passing self wouldn't work.
This is my code
HUD = [[MBProgressHUD alloc] initWithView:self.view];
[self.view addSubview:HUD];
Again "self" is my main ViewController
Thanks!
Here's what I think you want:
MBProgressHUD *hud = [[MBProgressHUD alloc] initWithView:view];
[view addSubview:hud];
[hud showWhileExecuting:#selector(YOUR_TASK) onTarget:YOUR_TARGET withObject:nil animated:YES]; // or NO if you don't want it to be animated
Alternatively, if you want to manage showing and displaying the HUD manually yourself, there's some nice convenience methods for doing that:
// To add HUD to a view
MBProgressHUD *hud = [MBProgressHUD showHUDAddedTo:view animated:YES]; // or NO if you don't want it to be animated
// To set HUD text
[hud setLabelText:#"Text"];
// To remove HUD from a view (such as later in the code, after load, etc)
[MBProgressHUD hideHUDForView:view animated:YES];
Where view is the view you want the HUD added/removed from.
I.e. self.view on a view controller.
I'm using the following code to push a view controller when user click on a UIButton
- (IBAction)showListPicker:(id)sender {
if([audioPlayer isPlaying])
{
[audioPlayer stop];
}
ListPicker *lp = [[ListPicker alloc] initWithStyle:UITableViewStyleGrouped];
[[self navigationController] pushViewController:lp animated:YES];
[lp release];
}
In the ViewDidLoad of ListPicker I use the following code to add right navigational control button
-(void)viewDidLoad{
[[self navigationController] setNavigationBarHidden:NO];
[[[self navigationController] navigationBar] setTintColor:[UIColor brownColor]];
[[self view] setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"background.png"]]];
UIBarButtonItem *button = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemAdd
target:self
action:#selector(doSomething:)];
[[self navigationItem] setRightBarButtonItem:button];
[button release];
}
When the view is loaded, I can see the right button briefly but then it disappear right away. What am I doing wrong?
Thank you.
My guess is that your ListPicker's XIB contains another navigation bar, obstructing the actual navigation controller's bar. This is why you see it for an instant and then it "disappears". If it's not something in the XIB, check the code all the way from instantiating that new view controller until the viewDidAppear of ListPicker.
I have an iPad app with splitViewController. In my RootViewController
i add buttons to edit list of items and to add a new item
- (void)viewDidLoad
{
[super viewDidLoad];
self.clearsSelectionOnViewWillAppear = NO;
self.contentSizeForViewInPopover = CGSizeMake(320.0, 500.0);
// Configure the Edit button
[[self navigationItem] setLeftBarButtonItem:[self editButtonItem]];
// Configure the Add button
UIBarButtonItem * addButton = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemAdd
target:self
action:#selector(add)];
[[self navigationItem] setRightBarButtonItem:addButton];
[addButton release];
}
it work fine. Buttons taps. Call selectors. But buttons looks like they is inactive (grayed). Title is also gray. Why?
What i need to do to give them a standard layout?
may be this is for this line.Comment this line
self.clearsSelectionOnViewWillAppear = NO;
From your screen shot the colours of the BarButtonItems are the correct and default colours of the UISplitViewController.
if you would like to customize the colour of the BarButtonItems you can do so by providing a tintColor which will modify the colour the button.
addButton.tintColor = [UIColor redColor];
There may be a better way to do this, and please direct me if there is.
I'm creating an UIImagePickerController with an overlayView in viewDidAppear for 'choose from library', 'take photo', 'flash' 'camera source', etc.
// Set up the camera
imagePicker = [[UIImagePickerController alloc]
imagePicker.sourceType = UIImagePickerControllerSourceTypeCamera;
imagePicker.delegate = self;
imagePicker.cameraOverlayView = [self cameraOverlayView];
cameraOverlayView.backgroundColor = [UIColor clearColor];
imagePicker.showsCameraControls = NO;
imagePicker.toolbarHidden = YES;
imagePicker.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
[self presentModalViewController:imagePicker animated:YES];
I then have an IBAction that calls my 'choose from library function', loading another UIImagePickerController to choose a photo from the device.
- (IBAction)library:(id)sender
{
UIImagePickerController *libraryPicker = [[[UIImagePickerController alloc] init] autorelease];
libraryPicker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
libraryPicker.delegate = self;
[self.imagePicker presentModalViewController:libraryPicker animated:YES];
}
I'm getting a white bar across the top about the size of a status bar when the 'choose from library' modal is presented. I know it has something to do with overlaying a modal on top of a modal, but I don't know how to solve it. (IE, my view layout for 'take photo' navigates fine, although doesn't display the additional 'choose from library' modal).
Any ideas? Any help or direction would be greatly appreciated!
Try
[self presentModalViewController:libraryPicker animated:YES];
Instead of
[self.imagePicker presentModalViewController:libraryPicker animated:YES];