There is iPad application with UINavigationBar and UITabBar.
I would like to show another UIViewController (clearColored with red UIView as a subview) with "blocking" UINavigationBar and UITabBar from the tap.
How can I do it?
EDITED
if I use [self presentViewController:aboutView animated:YES completion:nil]; :
it covers all with black background ((
[self.tabBarController.navigationController setNavigationBarHidden:TRUE];
[self.navigationController setNavigationBarHidden:TRUE];
self.tabBarController.hidesBottomBarWhenPushed = YES;
[self presentViewController:VC animated:YES completion:nil];
You can present a UIViewController which will obscure the underlying UITabBarController and UINavigationBarController. Try:
[self presentViewController:aViewController animated:YES completion:nil];
Keep in mind that you will be responsible for dismissing this presented view controller by calling dismissViewControllerAnimated: on the presenting view controller.
Try this
ViewController *detailview =[[ViewController alloc]initWithNibName:#"ViewController" bundle:nil]
[self.tabBarController presentViewController:detailview animated:YES completion:nil];
Related
I have 2 VCs - firstVC and secondVC.
secondVC's view's color is clear color and it has a UIVisualEffect view with dark blur.
I want to present secondVC modally on firstVC but when I do that, firstVC becomes black.
Thank you
You need to set the modalPresentationStyle appropriately on the presented (secondVC) controller.
UIModalPresentationOverFullScreen or UIModalPresentationOverCurrentContext will provide the effect of the second VC's content over the top of the first VC.
if ios version >= 8.0 then
SecondViewController.modalPresentationStyle = UIModalPresentationOverCurrentContext;
[self presentViewController:SecondViewController animated:YES completion:nil];
if using ios7 & navigation controller then
self.navigationController.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentViewController:SecondViewController animated:YES completion:nil];
if there is no navigation controller then
self.modalPresentationStyle = UIModalPresentationCurrentContext;
[self presentViewController:SecondViewController animated:YES completion:nil];
I got an error exc_bad_access,when i use dismissviewcontrolleranimated
the presentViewController code is:
TestViewController *testViewController=[[TestViewController alloc] init];
UINavigationController *nav=[[UINavigationController alloc] initWithRootViewController:testViewController];
[self presentViewController:nav animated:YES completion:^{
NSLog(#"presentViewController is finish");
}];
but,when i remove UINavigationController ,is error is disappear.
like this:
TestViewController *testViewController=[[TestViewController alloc] init];
[self presentViewController:testViewController animated:YES completion:^{
NSLog(#"presentViewController is finish");
}];
Thanks for help.
Present View Controller is presented over a "Root View Controller" not a UINavigationController.
You should present your VC from the Parent VC or Base VC like this
TestViewController *testViewController=[self.storyboard instantiateViewControllerWithIdentifier:#"storyboardIDofViewController"];//set the storyboard ID of the TestViewController in your storyboard by selecting attribute inspector after selecting the view controller.
[self presentViewController:testViewController animated:YES completion:^{
NSLog(#"presentViewController is finish");
}];
This is the correct way to present a VC from another VC.
UINavigationController have Push and Pull transitions and you are trying to apply Modal Transition to it.
I'm doing an ios project without using any story board and xibs.
Here I've come out one problem on presenting my UIViewController.
Here is the senario:
My RootViewController has 2 UIButton's that can present ViewControllerA and ViewControllerB when being pressed.
-(IBAction)btnAclicked:(id)sender{
[self.navigationController presentViewController:ViewControllerA];
}
-(IBAction)btnBclicked:(id)sender{
[self.navigationController presentViewController:ViewControllerB];
}
And now inside ViewControllerA
I have a button to presentViewContollerB as well, and I want only the RootViewController to be displayed when I dismiss ViewContollerB.
In order to do this, I need to dismiss ViewControllerA first then presentViewControllerB. I know there is ways like using delegate to make it works, but I just want to know if there is any easier way to do this.
To be emphasised is that I want to use presentViewController only, not pushViewController. Thanks
I have an answer for your question,just do the following code,
in RootViewController.m
- (IBAction)gotoViewA:(id)sender
{
ViewControllerA *viewControllerA = [[ViewControllerA alloc]initWithNibName:#"ViewControllerA" bundle:nil];
[self presentViewController:viewControllerA animated:YES completion:nil];
}
- (IBAction)gotoViewB:(id)sender
{
ViewControllerB *viewControllerB = [[ViewControllerB alloc]initWithNibName:#"ViewControllerB" bundle:nil];
[self presentViewController:viewControllerB animated:YES completion:nil];
}
in ViewControllerA.m
- (IBAction)actionBackFromA:(id)sender
{
[self dismissViewControllerAnimated:YES completion:nil];
}
in ViewControllerB.m
- (IBAction)actionBackFromB:(id)sender
{
[self dismissViewControllerAnimated:YES completion:nil];
}
Use the completion block of presentviewcontroller,viz will executed first
[self presentViewController:goTo_B animated:YES completion:^{
//Dismiss A
[self dismissViewControllerAnimated:YES completion:nil];
}];
If this does not work,write dismiss and just after it present your new controller
[self dismissViewControllerAnimated:YES completion:nil];
[self.view.window.rootViewController presentViewController:goTo_B animated:YES completion:^{ }];
There's another way out, but i don't know whether its appropriate or not.
Create a property of type View Controller A in view controller B.
While presenting view controller B, assign an instance of View Controller A to the property in view Controller B.
[self presentViewController:goTo_B animated:YES completion:^{
goTo_B.propertyOfViewControllerA = self;
}];
After that while dismissing view controller B you can do the either of the two:
[self dismissViewControllerAnimated:YES completion:nil];
[propertyOfViewControllerA dismissViewControllerAnimated:YES completion:nil]
or
[self dismissViewControllerAnimated:YES completion:^{
[propertyOfViewControllerA dismissViewControllerAnimated:YES completion:nil]
}];
I have been developing an iPhone app and have come across a few issues. I do not have a storyboard in my app and have nothing in my xibs. I have initialised and set everything up through code. When I go to the GameViewController from my main viewcontroller everything is fine, however when I come back through my back button I get this issue:
Presenting view controllers on detached view controllers is discouraged .
When I re-arrive to the main view controller, there are little changes such as the view changing before its supposed to. Here is the code for the button on my
GameViewController *game = [[GameViewController alloc] initWithNibName:nil bundle:Nil];
[self dismissViewControllerAnimated:YES completion:NULL];
[self presentViewController:game animated:YES completion:NULL];
Here is the code for the back button:
ViewController *home = [[ViewController alloc] initWithNibName:nil bundle:nil];
[self dismissViewControllerAnimated:YES completion:NULL];
[self presentViewController:home animated:NO completion:NULL];
If anyone can help me to see what I am doing wrong that would be great.
You can not present home view controller from self because it is already dismissed. You should change
[self dismissViewControllerAnimated:YES completion:NULL];
[self presentViewController:home animated:NO completion:NULL];
to
UIViewController *parentViewController = self.presentingViewController;
[self dismissViewControllerAnimated:YES completion:^
{
[parentViewController presentViewController:home animated:NO completion:nil];
}];
Im calling this code from the MasterViewController in a UISplitVC for an iPad app:
-(void)viewWillAppear:(BOOL)animated{
//PRESENT MODALVC
ModalViewController *modalVC = [[ModalViewController alloc] initWithNibName:#"ModalViewController" bundle:nil];
[self setModalPresentationStyle:UIModalPresentationFullScreen];
[self presentModalViewController:modalVC animated:YES];
}
but it doesn't work. No ModalVC appears.
Try this code:
ModalViewController *modalVC = [[ModalViewController alloc] initWithNibName:#"ModalViewController" bundle:nil];
[modalVC setModalPresentationStyle:UIModalPresentationFullScreen]; //You set the presentation style of the controller that would be presented, not the presenting controller
//This check is needed, because presentModalViewController:animated is depreciated in iOS5.0 and presentViewController:animated:completion must be used instead. The same is valid for dismissModalViewControllerAnimated and dismissViewControllerAnimated:completion
if([self respondsToSelector:#selector(presentViewController:animated:completion:)])
[self presentViewController:modalVC animated:YES completion:nil];
else
[self presentModalViewController:modalVC animated:YES];
If you are targeting iOS5.0+ only this check is not needed and you should use only presentViewController:animated:completion and dismissViewControllerAnimated:completion