A layer above UIView to show messages in UIAlertView style? - objective-c

Maybe my question was already addressed here, but i didn't know how to search for it .
We need to have some window which is above a view , to show some messages similar to UIAlertView that is not covering all screen.
Drawing just some rect with text is easy, but i want to create some container subview, that i can just load into it view(which has his a viewController class), and preferred with storyboard.
Is there something out of the box at Xcode,or do i need to create it on my own ?
Edit:
I have tried that, it worked, but if i load into it some other view controller, its going out from the UIWindow bounds, so even that the UIWindow is at width 200, the view i load into it is cover almost all screen , why is that ?
UIViewController *inner= [self.storyboard instantiateViewControllerWithIdentifier:#"signUpView" ];
UIWindow *backgroundWindow = [[UIWindow alloc]initWithFrame:CGRectMake(30, 30, 200, 200)];
backgroundWindow.windowLevel = UIWindowLevelAlert;
[backgroundWindow addSubview:inner.view];
[self.view addSubview:backgroundWindow];

Related

Set a UIPickerView to bottom of UITableview regardless of scroll position

I'd like to present a UIPickerView snapped to the bottom of a UITableView regardless of where it is scrolled.
Currently I have a UIPickerView added to a UITableView that I present when a button is pressed, but when I scroll the table the UIPickerView goes out of view, and if I'm scrolled out of range of where I've presented it, the UIPickerView appears to have never been called.
Does anyone know how to accomplish this?
Thank
The use of UITableViewController is great unless you need to add subview that don't scroll with the table view. It can't really be done. The solution is to use a UIViewController instead and add your own table view, setup the table view dataSource and delegate protocols and replicate the basic table view controller plumbing.
Once your view controller works like a normal table view controller again, you can now add subviews to the view controller's view that won't scroll with the table.
if u add tableview programatically
SearchtableView.frame = CGRectMake(450, 90, 318, 600);
SearchtableView = [[UITableView alloc] initWithFrame:CGRectMake(623, 90, 400, 400)style:UITableViewStyleGrouped];
[self.view addSubview:SearchtableView];
//belove the tableview//
//Add UIPickerView to the self.view]//
Something told me that there must be a simpler alternative to the answers that I'd been given, and I found a solution.
I decided to find the y coordinate of the scroll point using scrollViewDidScroll: and then animating the UIPickerView to the desired location.
...
[UIView beginAnimations:nil context:NULL];
CGFloat pointY = self.scrollPoint.y;
[self.sortPicker setFrame:CGRectMake(0, pointY + 200, 320, 216)];
[UIView commitAnimations];
...
The UIPickerView will only appear if the scroll has been stopped so it's necessary to implement a method to stop the scroll on touch:
- (void)stopScroll:(UITableView *)tableview
{
CGPoint offset = tableview.contentOffset;
[tableview setContentOffset:offset animated:NO];
}
This will allow you to display and dismiss the UIPickerView at any moment at any given destination.

UIScrollView does not work with EXC_BAD_ACCESS

I have a scrollview that is subview of view, and has the subviews. The problem is this: the scrollView came with the black background (as I have set transparent) and also does not work. The scrollView is connected with an IBOutlet. I redid the XIB 2 times, what needs fixing? When I add the scrollView as subview of view:
[self.view addSubview:self.scrollView];
I get this error during runtime:
0x132b61: calll 0x132b66; CA::Layer::ensure_transaction_recursively(CA::Transaction*) + 14
EXC_BAD_ACCESS(code=2 address=0xbf7ffffc)
If I do not add it as a subview in the code, the view controller opens and the scrollview is black and does not scroll.
You are probably doing somewhere, something like:
[myScrollView addSubview:myAnotherView];
[myAnotherView addSubview:myScrollView];
which kicks an unwanted recursion. Check your code.
Check if you init with your scrollView with frame:
self.scrollView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, 0, 280, 360)];
Remember also to set contentSize bigger than frame, for example:
self.scrollView.contentSize = CGSizeMake(2*280, 360);
Also add delegate in your interface:
<UIScrollViewDelegate>
And delegate it:
self.scrollView.delegate = self;
In my situation I had a UIView that was receiving the same error. In my case I had forgotten to create an IBOutlet for my view. Once I did this, the error went away.

How to add multiple Views to UIScrollView

I have a ScrollView (contentScrollView) which should later contain 20 pages with a UIViewController for each page.
Now this is what I get when adding the UIViewControllers view to the contentScrollView (the Button in the upper right corner is from the MainViewController so it doesn't affect the problem)
and I got this code in my MainViewController class where my contentScrollView is in:
Slide1ViewController*test = [[Slide1ViewController alloc] init];
test.view.frame = CGRectMake(0, 0, 1024, 768);
[self.contentScrollView addSubview:[test view]];
when I add a background like this right after setting the frame:
test.view.backgroundColor = [UIColor blackColor];
then I get the black background without that Bar on the top but the Label which is in the Slide1ViewController.xib won't appear.
Hope someone can help me.
If you really need 20 pages beaing each one a view controller you should use a uinavigationcontroller and if you really wanna have a scroll view, use a uitableview and make each cell the view of one of your uiviewcontroller because that way the each view will be loaded when needed, whereas in a scroll view you might get too much contend loaded at the same time.
I'm sorry i didn't realize UINavigationController was still selected so that i created the class while believing it's a UIViewController

UIScrollView.size = view.size - allAdditionalBars.size (like TabBar or NavigationBar) programmatically

UIScrollView is set programmatically, please dont post answers with using .xib file.
My UIScrollView is situated in my model class, so i want the code to be able to be easly imported to another project eg. for iPad or with rotating screen.
I have a view:
self.view = [[UIView alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width;, self.view.frame.size.height;)];
And my UIScrollView. I want to set it's size to cover all screen not counting all bars that my controller class will have. But i dont know how ;)
I though about subtracting self.view.frame.size.height - self.navigationController.navigationBar.frame.height and self.tabBarController.tabBar.height if each exists.
Is there any method that automatically sets UIScrollView size..?
Thank you in advance!
In your UIViewController subclass, you don't need to worry about the size of any UINavigationController or UITabBarController chrome. Those controllers will automatically resize your controller's main view to fit the appropriate content area.
If I'm creating the UIView myself in the controller's loadView, I usually just initially size it at [[UIScreen mainScreen] applicationFrame]. If I were to add a UIScrollView as a subview that would fill up the entire area of the main view (rather than just using the UIScrollView directly as the main view), I would use self.view.bounds as its frame and be sure to set autoresizingMask = UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight;.

UISplitViewController: remove divider line

When using UISplitViewController on the iPad there's a black vertical divider line between the root and detail view. Is there any way to remove this line?
Thanks
Excellent answer by #bteapot. I tested this and it works, even gets rid of the line between master/detail nav bars.
You can do this in storyboard by adding the "gutterWidth" key path and the value 0 to the USplitViewController runtime attributes.
Actuly I have some modification to answer of (Dylan)'s answer
in the appDelegate we need to add image in spliteview controller rather then window
self.splitViewController.view.opaque = NO;
imgView = [[UIImageView alloc] initWithImage:
[UIImage imageNamed:#"FullNavBar.png"]];
[imgView setFrame:CGRectMake(0, 0, 1024, 44)];
[[self.splitViewController view] insertSubview:imgView atIndex:0];
[[self.splitViewController view] setBackgroundColor:[UIColor clearColor]];
here self is object of AppDelegate.
now Apply the answer of this thread : iPhoneOS SDK - Remove Corner Rounding from views (iPad problem) answer by (abs)
edit in above post's answer is
-(void) fixRoundedSplitViewCorner {
[self explode:[[UIApplication sharedApplication] keyWindow] level:0];
}
-(void) explode:(id)aView level:(int)level
{
if ([aView isKindOfClass:[UIImageView class]]) {
UIImageView* roundedCornerImage = (UIImageView*)aView;
roundedCornerImage.hidden = YES;
}
if (level < 2) {
for (UIView *subview in [aView subviews]) {
[self explode:subview level:(level + 1)];
}
}
imgView.hidden = FALSE;
}
** make imgView.hidden to FALSE
declare imgView to the AppDelegate.h file**
and dont forget to call this
-(void)didRotateFromInterfaceOrientation:
UIInterfaceOrientation)fromInterfaceOrientation
{
[yourAppDelegate performSelector:#selector(fixRoundedSplitViewCorner)
withObject:NULL afterDelay:0];
}
chintan adatiya answer covers only the corners and the navigation bar, but I found an trick how to cover the line between the Master and the Detail view.
It is not nice but it works like a charm.
First create an image which is 1 px wide and 704 pixels high.
In the didFinishLaunchingWithOptions add the following code:
UIView *coverView = [[UIView alloc] initWithFrame:CGRectMake(320, 44, 1, 704)];
[coverView setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:#"divider_cover.png"]]];
[splitViewController.view addSubview:coverView];
And done.
When you want a background image which is continues create 3 images:
Master: width: 320, height: 704
Detail: width: 703, height: 704
Divider:width: 1, height: 704
First post here, hi everyone.
I discovered how to do it accidentally... when I tried to find why I had LOST the divider line. Here's how to hide it, if you're still interested:
1) In your Detail (right-side) view, make sure you have a subview that spans the whole view.
2) Offset this subview view to (-1, 0).
3) Make sure that the Detail View has its "Clip Subviews" option unchecked.
VoilĂ , enjoy.
You can mostly get rid of it by setting another image behind it in the main window's views. This is from the app delegate didFinishLaunchingWithOptions
// Add the split view controller's view to the window and display.
splitViewController.view.opaque = NO;
splitViewController.view.backgroundColor = [UIColor clearColor];
[window addSubview:splitViewController.view];
[window insertSubview:bgImageView belowSubview:splitViewController.view];
[window makeKeyAndVisible];
But it still leaves two visual artifacts at the top and the bottom that appear to be custom drawn by the splitviewcontroller.
Interestingly, In the app that I'm working on I want a black background color for both views in the UISplitViewController. I'd like to change the color of the divider line to white (so that you can see it). Making both background colors black is one way to get rid of (make invisible) the dividing line but that's probably not a solution for most people.
Tested on iOS10 (probably will work on iOS9 too).
splitviewController.view.backgroundColor = UIColor.white
it removes divider. Apparently divider is just a gap between master and detail container.
I looked around for a while, and came to the conclusion that theres no way to do this, other than to create your own custom split view.
Try the MGSplitViewController by Matt Gammell
http://mattgemmell.com/2010/07/31/mgsplitviewcontroller-for-ipad
I may be late here, but I DO have a solution that works. It even works for the iOS 8+ splitViewController.preferredDisplayMode = UISplitViewControllerDisplayModeAllVisible; and seamlessly slides in and out when you press the Full Screen toggle button.
Here is the trick :
first Subclass UISplitViewController.m
In the header add the follwing :
#property (strong, nonatomic) UIView *fakeNavBarBGView;
In the viewDidLoad method add the following code :
CGFloat fakeNavBarWidth = 321; // It is important to have it span the width of the master view + 1 because it will not move when the split view slides it's subviews (master and detail)
CGFloat navbarHeight = self.navigationController.navigationBar.frame.size.height + 20;
self.fakeNavBarBGView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, fakeNavBarWidth, navbarHeight)];
self.fakeNavBarBGView.backgroundColor = [UIColor redColor];
// Add Fake navbar to back of view
[self.view insertSubview:self.fakeNavBarBGView atIndex:0];
// SplitView Controller
UISplitViewController *splitViewController = self;
DetailViewController *detailVC = [navigationController.viewControllers lastObject];
detailVC.fakeNavBarSubView = self.fakeNavBarBGView;
detailVC.SVView = self.view;
In the DetailViewController.h add the following :
#property (strong, nonatomic) UIView *SVView;
#property (strong, nonatomic) UIView *fakeNavBarSubView;
Now here is the final trick : in the DetailViewController.m, add the following in the viewDidLoad method (called every time you click the Master table) :
[self.SVView sendSubviewToBack:self.fakeNavBarSubView];
[self.SVView bringSubviewToFront:self.view];
Run it and watch the magic ;-)
Private API (can cause App Store rejection):
[splitViewController setValue:#0.0 forKey:#"gutterWidth"];
I did this accidentally by setting the backgroundColor property of the first viewController's view - possibly to clearColor, I don't remember now.
UIManager.put("SplitPaneDivider.draggingColor", new Color(255, 255, 255, 0));