How do I position this ViewController over the detail view modally? I want it to be right aligned so you can see the navigation portion greyed out.
[self.window addSubview:self.splitViewController.view];
MyModalViewController *modalvc= [MyModalViewController new]; //brevity
modalvc.modalInPopover = YES;
modalvc.modalPresentationStyle = UIModalPresentationStylePageSheet;
modalvc.view.autoresizeMask = UIViewAutoresizeFlexibleRightMargin;
[self.splitViewController presentModalView:modalvc animated:NO];
[self.window makeKeyAndVisible];
I also checked in MyModalViewController if im setting the views mask and I am not, nor is it getting magic values from a Nib.
Adjusting the frame before the present (using modalvc.view.frame) does nothing.
Adjusting the frame after the present seems to yield crazy results, and I only really need it to be half a width over in landscape... portrait is normal behavior.
edit
the picture confused people so I took it out, I dont want the modal view to be the size of the screen, I want to keep it UIModalPresentationStylePageSheet but have its ORIGIN moved right so that it covers the detail view portion in landscape
The modalPresentationStyle is what controls that. You've set it to UIModalPresentationStylePageSheet, which sets the height to the height of the screen, and the width to to the width of the screen in portrait orientation, exactly as in your screenshot.
I think the only way to get full width in landscape is to use UIModalPresentationFullScreen. See the UIViewController reference for more info.
I had a similar problem, and I ended up using a custom view controller that uses a background translucent view and a foreground opaque view that I am able to position anywhere I want by manipulating its frame. It's useful as a lightbox for videos and images.
Related
My popover border was only partially showing the view I wanted to display, so I used the line self.buttonPopoverControllerH1.popoverContentSize = CGSizeMake(1000, 700); to enlarge it.
While it did enlarge the popover, the view still isn't central, and so it is still only partially displayed. Does anyone know how to rectify this?
I can't use autolayout as I'm developing an app for ios 5. I can't link in an image as I don't have enough rep, but
is what I'm talking about. Only half the view is displayed.
Set the rect when you present it..just modify to fit the frame you would like:
CGRect rect = CGRectMake(350,100,100,100);
[yourPopoverController presentPopoverFromRect:rect inView:self.view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
Do you want the popover view to take up most of the screen? If so, you should consider using a Modal View, instead of a popover view. Popover views shouldn't really cover the entire screen.
i have an iPhone application which I want to start with hidden status bar, to show a splash screen, and switch the status bar back in when the content to be shown is loaded (it takes some times since it has to be loaded over the internet), using [[UIApplication sharedApplication] setStatusBarHidden:NO animated:YES]. I want my content view to resize and position itself properly after status bar is shown and hidden. I want my application to be able to run in any device orientation (maybe excluding the topdown orientation as specified in apple guidelines).
My problem is I can't get the application to appear as it should. Either it shows a 20pt blank space after autorotation or is hidden below the status bar when it appears.
What should be the proper way to handle this?
I haven't tested it yet, but i guess same issues would arise by the incoming call bar.
EDIT:
I'll try to explain better what the problem is. When the application starts it has status bar hidden, and in the window coordinate system the top corner of the window's visible area is 0,0 in the window's coordinate system. Then I slide in status bar. This doesn't change window size, hence 0,0 point is now hidden behind status bar. Top left of visible area of the window is 0,20 and I have to move my view to those coordinates (and resize it properly to 320 * 460). But if I rotate the device, then back to the original position, top left coordinate of visible window area becomes 0,0 again, and the window is now sized at 320 * 480.
A workaround is to keep a flag telling whether the phone has been rotated before, but isn't there a way to have the window coordinates not changing when I rotate to another position and then back?
Yes, the same issues come up with the call bar. Alternatively, the audio recording bar does the same thing. (Its easier and maybe cheaper to start the voice memo app recording and come back to your app to test how it handles the extra bar.)
Setting the auto-resize masks on the view is what usually adjusts things for you.
If you are building your UI in XIB, you can play with the settings until your views properly change size when the bar changes or when the device or simulator rotates.
Remember that the mask settings on the contained subviews are important too.
Does #walt's answer really works? I've tried to add this flag to every view controller's view property, but without any luck there, am I missing sth?
self.view.autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;
This solution solved my problem, but it looks ugly. I have to resize the view controller view frame manually.
This should fix your issue
Just a View:
[self.view setFrame: [self.view bounds]];
A view with a scroll view inside
[self.view setFrame: [self.view bounds]];
[self.theScroller setFrame: [self.view bounds]];
"theScroller is the name of my scrollview
I am using following code for displaying a Screen/View Controller.
SearchParams *nxt=[[SearchParams alloc] initWithNibName:#"SearchParams" bundle:nil];
UINavigationController *nvc=[[UINavigationController alloc] initWithRootViewController:nxt];
nvc.modalPresentationStyle=UIModalPresentationFormSheet;
[self.preLCtr.preCinescape_iPadViewController presentModalViewController:nvc animated:YES];
I am not sure about the size of PesentationSheet. I tried to take screenshots & take dimentions/size. But its not the exact solution.
Question : What is the exact size of Present-Modal-Sheet in iPad ?
This is what I found for the current (iPad 3) iO6 dimensions:
BOUNDS: 540.000000, 620.000000 - Portrait-no-keyboard.
But you shouldn't use this for any code. Follow the correct answer.
According to Apple's documentation the size could change depending on the available screen size:
The width and height of the presented view are smaller than those of the screen and the view is centered on the screen. If the device is in a landscape orientation and the keyboard is visible, the position of the view is adjusted upward so that the view remains visible. All uncovered areas are dimmed to prevent the user from interacting with them.
Maybe in the viewcontroller that is loaded to the FormSheet you can determine the view size at runtime by using: self.view.bounds;
If you need to resize the FormSheet i saw some answers on stackoverflow
If you're adjusting a freeform view controller so that you can get the aspect right for a modal transition with form sheet presentation style, note that there is a Form Sheet option under the Size dropdown in the Size Inspector. I didn't notice this at first.
I checked different orientation and also in multi window mode, the default size is
width: 540, height: 620.
And below is the screenshot from Reveal.
I'm having an issue where the gray overlay that's automatically put over my UISearchDisplayController when the keyboard is shown doesn't always fully cover the table area (you can see the white on the bottom in the picture below). This doesn't always happen but it's frequent enough that it's annoying. Anyone know what's going on? Thanks.
I believe this is a bug in Apple's code. Having worked extensively with UIPopoverControllers, I have found that there are many occasions in which a popover becomes confused as to whether or not it has a navigation bar when performing sizing calculations.
I am confident that if you measure the height of the white box you will find that it is exactly 37 pixels: the height of a navigation bar in a popover. (Navigation bars in popovers are not 44 pixels high like most navigation controllers since they are embedded into the popover's border.)
If you were able to access the gray overlay and manually resize it you could account for the height of the navigation bar or lack thereof. Unfortunately you are in a bit of a bind since the overlay is controlled by the search bar.
My suggestion would be to try to get the popover to recompute the size of its contents after it appears or is resized. I use this pattern when dynamically resizing a UIPopover containing a navigation bar when it appears:
// UIViewController subclass with a navigation bar which is displayed in a popover
// _popoverController is a (unretained) pointer to the UIPopoverController in which this view controller is displayed
- (void)viewDidLoad
{
[self.view sizeToFit];
CGSize newSize; // Dynamically computed based on popover contents
self.contentSizeForViewInPopover = newSize;
newSize.height += 37; // Account for popover navigation bar
[_popoverController setPopoverContentSize:size animated:YES];
}
I don't know how much this answer will help, but I hope it will at least give you a push in the right direction.
Have a look in this post: http://www.cannonade.net/blog.php?id=1498
He discusses the problem, providing a (called by himself) ugly workaround, but also says how to fix it!
In some of my application designs or for just some UIViews, following a navigationController's pushViewController, my new view will be shifted off the window by the height of the status bar. As a result, I will put this code stub in the viewDidLoad method.
CGRect frameAt = [self.view frame];
CGRect statusBarFrame = [[UIApplication sharedApplication] statusBarFrame];
frameAt.origin.y += statusBarFrame.size.height;
[self.view setFrame: frameAt];
It does not make sense to me that this is the intention of XCode and Interface Builder, so I suspect that I am doing something fundamentally wrong with the SDK during my view design. Furthermore, on the rare occasion that I don't have to shift my view, I really don't know what the difference in the two design approaches.
Note also, that most of the time I try to design my views using IB, with some minor customization.
Does anyone else run into this and know what they do to fix without such a code stub?
I've used Apple's NavBar sample code to try and reproduce this problem.
the applicationDidFinishLaunching is originally implemented like this:
[window addSubview:navigationController.view];
[window makeKeyAndVisible];
If I change it to this:
UIViewController *shellController = [[UIViewController alloc] initWithNibName:nil bundle:nil];
[shellController.view addSubview:navigationController.view];
[window addSubview:shellController.view];
[window makeKeyAndVisible];
Then I get the gap appearing.
However if I only do this:
UIView *shell = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
[shell addSubview:navigationController.view];
[window addSubview:shell];
[window makeKeyAndVisible];
Then everything looks normal.
So I guess every view controller will offset its view if its the root view controller. But the navigation controller overrides this behaviour to offset its view regardless of whether it's the root view controller. Therefore I would say your gap is appearing because you've got a navigation controller somewhere lower in the hierarchy than it's supposed to be.
The main thing to keep in mind here is that a view controller will set the frame of its view itself. This is because the amount of space available to the view may change during the lifetime of the app, and only the view controller knows how to adjust the view's frame appropriately. Examples of when the amount of space changes include the navigation bar changing height, turning the device from portrait to landscape and the status bar can also increase in height if the user is taking a call. Because of this you should not modify the view's frame yourself.
So, the first thing you need to is is remove all code related to modifiying the view's frame.
Now you need to design your views with the mindset that the frame size could change at any moment. This means setting the autoresizing property of each subview properly. If you do this, then it won't matter if you turn on the simulated navigation and status bars or not; they're just there to help you see what the final result will look like in most cases.
You can set the autoresizing property of each subview in Interface Builder in the Size Inspector (the one with the ruler icon). In the animation, the white box represents the root view of the view controller, the red box represents the currently selected subview. You'll notice that the subview is anchored to the top-left corner of the root view by default. This is fine if the size of the view never changes, but we know that not to be true. If you have subviews that you want to appear at the bottom no-matter-what, then you need to play with the diagram to the left. The way it works is if one of the four lines around the edge is selected, then the distance between that edge of the root view and the edge of the subview is fixed. So if you want a subview to appear at the bottom, you need to make sure the bottom-most line is selected and not the top. The two lines in the middle affect whether the size of the subview changes when the root view change size. So, for example, if you had a table view that you wanted to occupy the entire height of the screen, you would make sure the inner vertical line was selected. This is called the struts and springs model.
If you are adding subviews programatically you need to set the autoresizingMask property on each subview. Here's an explanation.
Hope that helps!
I've run into similar issues. Check out my two previous questions:
IPhone - After dismissing Modal View Controller - gap is left at top of page
IPhone - UIView addSubview Gap at top
link text
A similar bug is discussed here.
Also is animation set to NO? Try setting it to YES as this solved a similar problem I was facing.
Moshy's answer was very helpful as I finally realized the meaning of the dotted/solid lines in IB for controlling the resize properties of UIView elements.
However, adjusting those properties did not address a similar problem I faced with one of my views. This view had a status and top bar defined in IB. It was a slightly heavy one,
containing a UIWebView that would load a HTML string within viewWillAppear and a few other interface elements.
While loading the view, if the user suddenly changed the orientation of the device from portrait to landscape, all contents of the view would shift downwards by the height of the status bar. The resulting gap between the view controls and its top would remain even after switching back to portrait orientation.
What finally solved my issues, and my remaining hair, was adding the line:
self.view.frame = [[UIScreen mainScreen] bounds];
within
-(void) willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
Ever since my view contents are held in place despite abrupt device orientation changes.