I have two viewcontrollers that are both bundled with navigationcontrollers. Im trying to send an object from one viewcontroller to the other. I use the code below in the didselectrow of the table:
UIViewController *serviceTable = [self.storyboard instantiateViewControllerWithIdentifier:#"navigationServiceNews"];
((TableServiceNews*)serviceTable).service_ID = [ServiceID objectAtIndex:indexPath.row];
[self.slidingViewController anchorTopViewOffScreenTo:ECRight
animations:nil onComplete:^{
CGRect frame = self.slidingViewController.topViewController.view.frame;
self.slidingViewController.topViewController = serviceTable;
self.slidingViewController.topViewController.view.frame = frame;
[self.slidingViewController resetTopView];
}];
The identifier that im using (navigationServiceNews) points to the navigationcontroller that is bundled with the destination viewcontroller.
While using this identifier, the app crashes because obviously instantiateViewControllerWithIdentifier returns a veiwcontroller not a navigationcontroller.
When i change the identifier to the ID of the destination viewcontroller,every works fine but i lose the navigationBar on the header which is very important to my project(it is the reason i decided to bundle the viewcontrollers with navigationcontroller).
If "navigationServiceNews" is the identifier you assigned to the navigation controller, then instantiateViewControllerWithIdentifier: will instantiate a navigation controller not a UIViewController, so that's not your problem. You problem is on the next line -- I assume that serviceID is a property on TableServiceNews not the navigation controller, so you need to get ahold of that controller using topViewController.
UINavigationController *serviceTableNav = [self.storyboard instantiateViewControllerWithIdentifier:#"navigationServiceNews"];
TableServiceNews *serviceTable = serviceTableNav.topViewController;
serviceTable.service_ID = [ServiceID objectAtIndex:indexPath.row];
[self.slidingViewController anchorTopViewOffScreenTo:ECRight
animations:nil onComplete:^{
CGRect frame = self.slidingViewController.topViewController.view.frame;
self.slidingViewController.topViewController = serviceTable;
self.slidingViewController.topViewController.view.frame = frame;
[self.slidingViewController resetTopView];
}];
I am using ECSlidingViewController in my app for Facebook style swipe effect. I have 2 TopViewControllers, one left and one right side view controller and one initviewcontroller which is a slidingviewcontroller subclass.
1. InitViewController:ECSlidingViewController
2.MainViewController (TopViewController)
3.LeftMenuViewContrller (UIViewController)
4.RightMenuViewController (UIViewController)
5.DetailViewController (TopViewController)
I have tableview on my MainViewController which contains the calendar events. The problem is that I want to go to MainViewController to DetailViewController by clicking the event in tableView:didSelectRowAtIndexPath: methods to show the events details which is another topview controller with some animation( which I am unable to get so far). I am using following code which is getting me to the DetailViewController
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
DetailsViewController *newTopViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"details"];
self.slidingViewController.topViewController = newTopViewController;
[self.slidingViewController resetTopView];
}
this is my viewDidLoad method
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.view.layer.shadowOpacity = 0.75f;
self.view.layer.shadowRadius = 10.0f;
self.view.layer.shadowColor = [UIColor blackColor].CGColor;
if (![self.slidingViewController.underLeftViewController isKindOfClass:[LeftViewController class]]) {
self.slidingViewController.underLeftViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"Left"];
}
if (![self.slidingViewController.underRightViewController isKindOfClass:[RightViewController class]]) {
self.slidingViewController.underRightViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"Right"];
}
[self.view addGestureRecognizer:self.slidingViewController.panGesture];
}
I want to get the animation like the UINavigationController or Modal style
[self.navigationController pushViewController:newTopViewController animated:YES];
or
[self presentViewController:newTopViewController animated:YES completion:nil];
please help. thank you.
Are you using Storyboard? Could you perform a Segue? In the storyboard setup the name and the link and style as Modal along with the Transition.
In your DidSelectRowAtIndex put this
[self performSegueWithIdentifier:#"eventDetail" sender:#(indexPath.row)];
Then declare this method
-(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
{
if([segue.identifier isEqualToString:#"eventDetail"])
{
DetailsViewController *destViewController = segue.destinationViewController;
destViewController.eventRow = sender;
}
// You can test for other Segue names here
}
Then in the DetailsViewController.h put
// Allows sending View Controller to give this controller data
#property (nonatomic, strong) int *eventRow;
And in the .m put
#synthesize eventRow;
Now in your DetailsViewController it should animate to it and the sliding will be disabled (unless you declare all the ECS bits as normal). You also have an Int eventRow which tells you which cell was clicked.
You can create a back button and do this;
[self dismissViewControllerAnimated:YES completion:nil];
EDIT
OR you could try this but I am not sure if it will animate plus you need to figure out how to pass stuff, maybe a combination of the two...
UIViewController *newTopViewController = [self.storyboard instantiateViewControllerWithIdentifier:#"eventDetail"];
CGRect frame = self.slidingViewController.topViewController.view.frame;
self.slidingViewController.topViewController = newTopViewController;
self.slidingViewController.topViewController.view.frame = frame;
[self.slidingViewController resetTopView];
I'm using ECSliding and I have this problem!
In my project there are this files:
InitViewController (ECSlidingController)
FirstViewController (UIViewController)
SecondViewController (UIViewController)
LeftMenuViewController (UIViewController)
LeftMenuTwoViewController (UIViewController)
I use InitView to instatiate my FirstView as the topview.
Sliding right shows LeftMenuViewController, that has a button, if pressed change topview to SecondViewController. I would like to know if is it possible to use LeftMenuTwoViewController as the underLeftViewController of SecondView. Also I want a button in LeftMenuTwo that changes topView to FirstView.
I want a FirstView with underLeftViewController as LeftMenuViewController, and SecondView with underLeftViewController as LeftMenuTwoViewController. Each menu have a button that change the topView to the other one with different underLeftViewController.
I did this:
SecondViewController *second = [self.storyboard
instantiateViewControllerWithIdentifier:#"SecondTop"];
[self.slidingViewController anchorTopViewOffScreenTo:ECRight
animations:nil
onComplete:^{
self.slidingViewController.topViewController = second;
[self.slidingViewController resetTopViewWithAnimations:nil
onComplete:^{
LeftMenuTwoViewController *newUnderLeftVC = [self.storyboard
instantiateViewControllerWithIdentifier:#"LeftTwo"];
self.slidingViewController.underLeftViewController = newUnderLeftVC;
}];
}];
But when I push the button the topView starts the bouncing animation by sliding right but never comes back again and immediatly after the TopView goes off screen the underLeftViewController becomes blank. Anyone know why?
Download: My Project
Change the method to this:
-(IBAction)openSecond:(id)sender
{
SecondViewController *second = [self.storyboard instantiateViewControllerWithIdentifier:#"Second"];
ECSlidingViewController *slideController = self.slidingViewController;
[slideController anchorTopViewOffScreenTo:ECRight animations:nil onComplete:^{
slideController.topViewController = second;
[slideController resetTopViewWithAnimations:nil onComplete:^{
LeftMenuTwoViewController *newUnderLeftVC = [self.storyboard instantiateViewControllerWithIdentifier:#"LeftTwo"];
slideController.underLeftViewController = newUnderLeftVC;
}];
}];
}
The problem was that when the view removes itself as the top view controller, calling self.slidingViewController no longer returns a valid instance (it returns nil).
I am coding in xCode 4.3
This is my first application.
I have a UIViewController, company logo on top, then search bar and then UITableView in the middle (with product names) and bottom footer image. Now I want that once an item is clicked on UITableView, only TableView is replace with a view showing product details.
Right now I can replace the entire view with following code:
if (!self.prodDetailViewController_)
{
self.prodDetailViewController_ = [[PCS1ProdDetailViewController alloc] initWithNibName:#"PCS1ProdDetailViewController" bundle:[NSBundle mainBundle]];
}
[self presentModalViewController:prodDetailViewController_ animated:YES];
But it just increases my work, because I will have to redo the top bar and bottom bar (which remains same in entire application) in all my views.
Is there a way that I just change the element of my main UIViewController to UITableView.
Thanking you in anticipation.
I'm going to assume you're able to use iOS 5 features here. What you can do is implement a container view controller - much like UINavigationController, but with your own view layout so you can keep logo, search bar, etc. all in place and only transition between views in a part of your view.
I created a new container view controller named ViewController. It has a UIView outlet containerView which is set up in the .xib file, along with a top bar, search bar, and bottom bar (corresponding to the other views you describe in your application). It also has properties tableViewController and detailViewController. In its viewDidLoad implementation, it adds a TableViewController instance as a child view controller. When the table view is tapped, the view controller adds a DetailViewController instance as a child view controller and transitions to it. Tapping a button on the detail view transitions back to the table view, and removes the detail view controller as a child.
Here's my viewDidLoad method:
- (void)viewDidLoad
{
[super viewDidLoad];
self.tableViewController = [[TableViewController alloc] init];
self.tableViewController.delegate = self; // I implement a protocol TableViewControllerDelegate to know when row is tapped
// Fix for origin being 20 by default.
CGRect frame = self.tableViewController.view.frame;
frame.origin.y = 0.0f;
self.tableViewController.view.frame = frame;
[self addChildViewController:self.tableViewController];
[self.containerView addSubview:self.tableViewController.view];
[self.tableViewController didMoveToParentViewController:self];
}
I have a delegate method so that the container knows when a table row is tapped, and does the transition between the table view and the detail view. Its implementation follows:
- (void)tableViewController:(TableViewController *)tvc didSelectIndex:(NSInteger)index
{
self.detailViewController = [[DetailViewController alloc] init];
self.detailViewController.backButtonBlock = [self backButtonBlock]; // This block handles the transiton from detail back to table
CGRect detailStartingFrame = self.detailViewController.view.frame;
detailStartingFrame.origin.x = self.containerView.frame.size.width;
self.detailViewController.view.frame = detailStartingFrame;
[self addChildViewController:self.detailViewController];
[self transitionFromViewController:self.tableViewController
toViewController:self.detailViewController
duration:0.5
options:0
animations:^{
CGRect newTableFrame = self.tableViewController.view.frame;
newTableFrame.origin.x = (-1.0f * newTableFrame.size.width);
self.tableViewController.view.frame = newTableFrame;
[self.containerView addSubview:self.detailViewController.view];
CGRect newDetailFrame = self.detailViewController.view.frame;
newDetailFrame.origin.x = 0.0f;
self.detailViewController.view.frame = newDetailFrame;
} completion:^(BOOL finished) {
[self.detailViewController didMoveToParentViewController:self];
}];
}
As mentioned above, the detail view executes a block when tapping on a back button. I create this block in ViewController here:
- (GoBackButtonBlock)backButtonBlock
{
GoBackButtonBlock block = ^ {
[self.detailViewController willMoveToParentViewController:nil];
[self transitionFromViewController:self.detailViewController toViewController:self.tableViewController duration:0.5 options:0 animations:^{
CGRect newDetailFrame = self.detailViewController.view.frame;
newDetailFrame.origin.x = self.containerView.frame.size.width;
self.detailViewController.view.frame = newDetailFrame;
CGRect newTableFrame = self.tableViewController.view.frame;
newTableFrame.origin.x = 0.0f;
self.tableViewController.view.frame = newTableFrame;
} completion:^(BOOL finished) {
[self.detailViewController removeFromParentViewController];
[self.detailViewController.view removeFromSuperview];
}];
};
return [block copy];
}
That's about all there is to it. Be sure to read the "Implementing a Container View Controller" section of the UIViewController class reference for more details. Hope this helps!
Prepare all of your detail in a View, then add this view to the current screen. That's that.
in your "tableViewDidSelectRowAtIndex" method,On selection of row,just show the particular custom view (which contains details of selected row),and at that same time hide the table view,so u can have the view that u want. And make a back button on that custom view,and on that button action,hide your current view and show the tableview again.
I'm trying to create a transparent modal View on top of my navigation controller. Does anyone know if this is possible?
A modal view will cover the view it is pushed on top of as well as the navigation bar for your navigation controller. However, if you use the -presentModalViewController:animated: approach, then once the animation finishes the view just covered will actually disappear, which makes any transparency of your modal view pointless. (You can verify this by implementing the -viewWillDisappear: and -viewDidDisappear: methods in your root view controller).
You can add the modal view directly to the view hierarchy like so:
UIView *modalView =
[[[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease];
modalView.opaque = NO;
modalView.backgroundColor =
[[UIColor blackColor] colorWithAlphaComponent:0.5f];
UILabel *label = [[[UILabel alloc] init] autorelease];
label.text = #"Modal View";
label.textColor = [UIColor whiteColor];
label.backgroundColor = [UIColor clearColor];
label.opaque = NO;
[label sizeToFit];
[label setCenter:CGPointMake(modalView.frame.size.width / 2,
modalView.frame.size.height / 2)];
[modalView addSubview:label];
[self.view addSubview:modalView];
Adding the modalView as a subview to the root view like this will not actually cover the navigation bar, but it will cover the entire view below it. I tried playing around with the origin of the frame used to init the modalView, but negative values cause it to not display. The best method that I found to cover the entire screen besides the status bar is to add the modalView as a subview of the window itself:
TransparentModalViewAppDelegate *delegate = (TransparentModalViewAppDelegate *)[UIApplication sharedApplication].delegate;
[delegate.window addSubview:modalView];
The easiest way is to use modalPresentationStyle property of navigationController (but you'll have to make animation by yourself):
self.navigationController.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentModalViewController:modalViewController animated:NO];
modalViewController.view.alpha = 0;
[UIView animateWithDuration:0.5 animations:^{
modalViewController.view.alpha = 1;
}];
I accomplish this most easily by setting up an "OverlayViewController" that sits above all other subviews of my window or root view. Set this up in your app delegate or root view controller, and make OverlayViewController a singleton so that it can be accessed from anywhere in your code or view controller hierarchy. You can then call methods to show modal views, show activity indicators, etc, whenever you need to, and they can potentially cover any tab bars or navigation controllers.
Sample code for root view controller:
- (void)viewDidLoad {
OverlayViewController *o = [OverlayViewController sharedOverlayViewController];
[self.view addSubview:o.view];
}
Sample code you might use to display your modal view:
[[OverlayViewController sharedOverlayViewController] presentModalViewController:myModalViewController animated:YES];
I haven't actually used -presentModalViewController:animated: with my OverlayViewController but I expect this would work just fine.
See also: What does your Objective-C singleton look like?
I had this same problem and in order to The solution is to add the modal view with addSubview: and animate the change in the view hierarchy with UIView’s animateWithDuration:delay:options:animations:completion:
I added a property and 2 methods to a subclass of UIViewController (FRRViewController) that includes other functionalities. I will be publishing the whole stuff on gitHub soon, but until then you can see the relevant code below. For more info, you can check my blog: How to display a transparent modal view controller.
#pragma mark - Transparent Modal View
-(void) presentTransparentModalViewController: (UIViewController *) aViewController
animated: (BOOL) isAnimated
withAlpha: (CGFloat) anAlpha{
self.transparentModalViewController = aViewController;
UIView *view = aViewController.view;
view.opaque = NO;
view.alpha = anAlpha;
[view.subviews enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
UIView *each = obj;
each.opaque = NO;
each.alpha = anAlpha;
}];
if (isAnimated) {
//Animated
CGRect mainrect = [[UIScreen mainScreen] bounds];
CGRect newRect = CGRectMake(0, mainrect.size.height, mainrect.size.width, mainrect.size.height);
[self.view addSubview:view];
view.frame = newRect;
[UIView animateWithDuration:0.8
animations:^{
view.frame = mainrect;
} completion:^(BOOL finished) {
//nop
}];
}else{
view.frame = [[UIScreen mainScreen] bounds];
[self.view addSubview:view];
}
}
-(void) dismissTransparentModalViewControllerAnimated:(BOOL) animated{
if (animated) {
CGRect mainrect = [[UIScreen mainScreen] bounds];
CGRect newRect = CGRectMake(0, mainrect.size.height, mainrect.size.width, mainrect.size.height);
[UIView animateWithDuration:0.8
animations:^{
self.transparentModalViewController.view.frame = newRect;
} completion:^(BOOL finished) {
[self.transparentModalViewController.view removeFromSuperview];
self.transparentModalViewController = nil;
}];
}
}
Here's what I did to solve the problem - Google the details but this approach worked very well for me:
Take a screenshot of the underlying view. https://devforums.apple.com/message/266836 - this leads to a ready-made method that returns a UIView for the current screen.
Hand the screenshot to the modal view (I used a property)
Present the modal view
In the modal view controller's viewDidAppear, set the image as UIImageView at index 0. Adjust the vertical position of the image by the height of the status bar.
In the modal view controller's viewWillDisappear, remove the image again
The effect is:
The view animates in as any modal view does - the semi transparent parts of the modal view glide over the existing view
As soon as the animation stops, the background is set to the screenshot - this makes it appear as if the old view is still underneath even though it isn't.
As soon as the modal view's disappear animation starts, the image is removed. The OS meanwhile shows the old navigation view so the modal view transparently glides away and out of sight as you'd expect.
I tried animating in my own overlay view but it didn't work very well. I got a crash with no indication as to what has crashed. Rather than chase this down I did the bg view & Works really well.
Code in the modal view - I think you can figure out the rest, namely setting the property modalView.bgImage...
- (void)viewDidAppear:(BOOL)animated {
// background
// Get status bar frame dimensions
CGRect statusBarRect = [[UIApplication sharedApplication] statusBarFrame];
UIImageView *imageView = [[UIImageView alloc] initWithImage:self.bgImage];
imageView.tag = 5;
imageView.center = CGPointMake(imageView.center.x, imageView.center.y - statusBarRect.size.height);
[self.view insertSubview:imageView atIndex:0];
}
- (void)viewWillDisappear:(BOOL)animated {
[[self.view viewWithTag:5] removeFromSuperview];
}
self.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentModalViewController:newview animated:YES];
and make sure you setup the modal view background to be transparent,
self.view.background = .... alpha:0.x;
if you set modalPresentationStyle for the modal view controller to:
viewController.modalPresentationStyle = 17;
The view in the background is not removed. (TWTweetComposeViewController use it).
I did not try to pass App Store review with this code though
This post about displaying a semi-transparent "Loading..." view might give a few pointers on how to proceed.
Yeah, you have to add the view manually, and if you want to slide in from the bottom or whatever you have to do the animation yourself too.
I wrote a class to do this, and a semi-modal datepicker using that class as an example.
You can find documentation in this blog post, the code is on github
I've been researching this same issue for the past week. I tried all the various answers and examples found in Google and here on StackOverflow. None of them worked that well.
Being new to iOS programming, I wasn't aware of something called UIActionSheet. So if you're trying to accomplish this in order to show a modal overlay of buttons (such as a modal asking someone how they want to share something), just use UIActionSheet.
Here is a webpage that shows an example of how to do this.
I got this idea from https://gist.github.com/1279713
Prepare:
In the modal view xib (or scene using storyboard), I setup the full-screen background UIImageView (hook it with the .h file and give it a property "backgroundImageView") with 0.3 alpha. And I set the view (UIView) background color as plain black.
Idea:
Then in "viewDidLoad" of the modal view controller I capture the screenshot from the original status and set that image to the background UIImageView. Set the initial Y point to -480 and let it slide to Y point 0 using 0.4-second duration with EaseInOut animation option. When we dismiss the view controller, just do the reverse thing.
Code for the Modal View Controller Class
.h file:
#property (weak, nonatomic) IBOutlet UIImageView *backgroundImageView;
- (void) backgroundInitialize;
- (void) backgroundAnimateIn;
- (void) backgroundAnimateOut;
.m file:
- (void) backgroundInitialize{
UIGraphicsBeginImageContextWithOptions(((UIViewController *)delegate).view.window.frame.size, YES, 0.0);
[((UIViewController *)delegate).view.window.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage * screenshot = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
backgroundImageView.image=screenshot;
}
- (void) backgroundAnimateIn{
CGRect backgroundImageViewRect = backgroundImageView.frame;
CGRect backgroundImageViewRectTemp = backgroundImageViewRect;
backgroundImageViewRectTemp.origin.y=-480;
backgroundImageView.frame=backgroundImageViewRectTemp;
[UIView animateWithDuration:0.4 delay:0.0 options:UIViewAnimationCurveEaseInOut animations:^{
backgroundImageView.frame=backgroundImageViewRect;
} completion:^(BOOL finished) {
}];
}
- (void) backgroundAnimateOut{
CGRect backgroundImageViewRect = backgroundImageView.frame;
backgroundImageViewRect.origin.y-=480;
[UIView animateWithDuration:0.4 delay:0.0 options:UIViewAnimationCurveEaseInOut animations:^{
backgroundImageView.frame=backgroundImageViewRect;
} completion:^(BOOL finished) {
}];
}
In viewDidLoad, simply call:
[self backgroundInitialize];
[self backgroundAnimateIn];
In anywhere we dismiss the modal view controller, we call:
[self backgroundAnimateOut];
Please note that this will ALWAYS animate the background image. So if this modal view controller transition style (or the segue transition style) is not set to "Cover Vertical", you may not need to call the animation methods.
I finally accomplished this, for a navigation or tab bar interface, by combining an overlay view controller (see: pix0r's answer) that's hidden / un-hidden before hiding or showing a view controller based on this very good blog post.
Concerning the view controller, the tip is to make its background view the clearColor, then the semi-transparent overlay view is visible and whatever views are added as subviews in the view controller are in front and most importantly opaque.
I've created open soruce library MZFormSheetController to present modal form sheet on additional UIWindow. You can use it to present transparency modal view controller, even adjust the size of the presented view controller.
For iOS 8+ you can use UIModalPresentationOverCurrentContext presentation style for presented view controller to easy achieve desired behavior.
UIViewController *viewController = [[UIViewController alloc] init];
viewController.view.backgroundColor = [[UIColor blackColor] colorWithAlphaComponent:0.9f];
viewController.modalPresentationStyle = UIModalPresentationOverCurrentContext;
[self presentViewController:viewController animated:YES completion:nil];
If you also need to support iOS 7 - check this thread.
You can achieve transparent/semi-transparent modal view effect by overlaying a transparent/semi-transparent button on both the view and the navigation bar.
You can access the navigation bar through the navigationBar property of the UINavigationController.
I found that UIButton unlike UILabel will trap mouse events - hence giving the correct modal behavior.
I just found a workaround for that. Just create a 1X1 of UIViewController and add it to your parent view controller. And show the transparent modal view controller in that UIViewController.
on viewDidLoad;
self.dummyViewController = [[UIViewController alloc] init];
[self.dummyViewController.view setFrame:CGRectMake(0, 0, 1, 1)];
[self.view addSubView:self.dummyViewController.view];
when you need to open a transparentViewController;
[self.dummyViewController presentModalViewController:yourTransparentModalViewController animated:true];
If you need a screen like the attached one, the below code may help you.
The code:
MyViewController * myViewController = [[MyViewController alloc] initWithNibName:nibName bundle:nil];
UINavigationController * myNavigationController = [[UINavigationController alloc] initWithRootViewController: myViewController];
myNavigationController.modalPresentationStyle = UIModalPresentationPageSheet;
[self presentModalViewController: myNavigationController animated:YES];
If say you want a screen overlay, use the parentViewController.view, it will place above navigation bar ++
MyCustomViewController* myOverlayView = [[MyCustomViewController alloc] init];
[self.parentViewController.view addSubview:myOverlayView];
This worked for me:
UIViewController *modalViewController = [[UIViewController alloc] init];
modalViewController.view.backgroundColor = [UIColor whiteColor] colorWithAlpha:0.5];
[self showDetailViewController:modalViewController sender:nil];