I have created View based application, here i need to navigate between views when button pressed.
so in first view controller i have created action for button pressed.
-(IBAction)loadSecondView:(id)sender
{
SecondView *sView = [[SecondView alloc]initWithNibName:#"SecondView" bundle:nil];
[self.navigationController pushViewController:sView animated:YES];
[sView release];
}
this code is not working, anything i am missing,
i can do this by [self.view addSubview:sView]; but i need navigation effect.
Thanks in advance.
You can't just hook a UIView instance to a navigation controller, that's not how they work.
Take a look at the "Navigation-based Application" template in Xcode, to learn how navigation controllers work.
You can use view controllers while hiding the navigation bar:
[[self navigationController] setNavigationBarHidden:YES animated:NO];
You can then map UIButton instances to selectors that push or pop view controllers, while keeping the navigation bar hidden.
These button instances are subviews of the view controller's view property.
Hiding the navigation bar can help provide the illusion that you are not using a navigation controller, while giving you all the functionality of the navigation controller.
Alex is right, if you create just a "View Based Application" project, no UINavigationController was created so when you push something on it nothing happen, that's normal.
You have to create a UINavigationController and make you main view its rootViewController, then you can push on it a new viewController.
I have got a solution for this,
In View based application the appdelegate file creates object for, view controller and added that view to main window, to do our task, delete the controller in mainwindow.xib and add a UINavigation controller,and create a object to it, and connect outlet to it,and then add this navigation controller view as a sub view,
its work fine.
Related
want my table to show up only half way from the bottom of the screen, the upper half meant for the calendar view. To do this, I added a table view through code using CGRectMake specifying the (x,y) co-ordinates I wanted it to start at.
Now, I want each row of this table to navigate to a new view. How do I make the navigation controller push my new view? I added a navigation controller to my main view
TaskDetailsViewController *detailViewController = [[TaskDetailsViewController alloc] initWithNibName:#"TaskDetailsViewController" bundle:nil];
[self.navigationController pushViewController:detailViewController animated:YES];
If you need to apply navigation from a view controller, that view controller should be a part of the navigation viewcontroller stack.
So what you have to do is instead of adding the rootViewController directly, You create a navigation controller, and set the rootViewcontroller to it(as rootViewController property). Once you set it, You can add navigation controller in place of rootViewController added previously.
Then on click you can use.
[self.navigationController push..... animated:..];
You can check it. If try to access the navigationController by self.navigationController currently it would be returning nil.
I have a navigation controller with a rootview.
The rootview contains buttons, which push new views onto the navigation controller correctly.
However, on this rootview, I also have subview (it's a scrolling preview like the appStore images, view made of 3 UIview items). On these UIViews, there is a button which I'd like to change the rootview navigation controller, like the other buttons.
At the moment, it builds and runs, but the new view is not pushed. Any ideas?
Click method on on the ScrollItem button:
MyViewController *newView = [[MyViewController alloc] initWithNibName:#"ManageMyPain" bundle:[NSBundle mainBundle]];
[self.navigationController pushViewController:newView animated:YES];
... i guess it is because, self doesn't have a navigation controller, but the rootview does.
Thanks!!
The property "navigationController" is only being set in a view controller if he's pushed to the navigation controllers stack. your second view is a sub view of a push viewcontroller which means this property is NULL and will not do anything if you try pushing things to it.
Yes, it is because self.navigationController will be nil if you didn't push that controller on navigations stack or if you didn't set it manually.
So you just need to have reference to rootViewController.navigationController and then [navigationController pushViewController:newView animated:YES]; will work perfectly.
I have a simple uiviewcontroller with 4 buttons. Every buttonclick event loads a different image on the view. However for the 4th button i want to launch a navigation controller based uiview with a uitableview. The table view can then have 3 levels which define the settings for the application.
On selecting a row in the uitableview on the 3rd level i need to return to my main view with the selected row index.
How can i add a navigation based view which will be launched on a button press event and the first view of the uinavigationcontroller should compose of a back button which will close this navigation view and return to main view.
TIA,
Praveen S
Edit:
My first(home) view does not need a navigation bar. The view launched from the home view should however consist of a navigation bar with back button.
if(nxtv12==nil){
nxtv12=[[v12 alloc] initWithNibName:#"v12" bundle:nil];
}
[self.navigationController pushViewController: nxtv12 animated:YES];
and for coming back to home.
[self.navigationController popToRootViewControllerAnimated:YES];
Create a UINavigationViewController object in the current UIViewController (or use self.navigationcontroller) and push the new UIView into the navigation controller. To come back to the same view, use popToRootViewControllerAnimated in the new UIView class.
I have a tableView and want to add a new viewController so that when the user selects an item the new view shows an image and the bar at the top will allow the user to go back to the tableView.
This navigation bar at the top will be present in both views. Is it also possible to add a button e.g. share to it and link my own actions to the button?
Thanks.
Your tableView should live inside a UIViewController subclass that is itself inside of a UINavigationController. You can get this structure set up for you by selecting the "navigation-based" app in the project creation wizard. Or you can create this structure yourself in code. In your app delegate, create a UINavigationController, and set your app's first ViewController as the root view controller. Then pushing and popping view controllers is easy, just call:
MyDetailVC *vc = [[[MyDetailVC alloc] initWithNibName:#"MyDetailVC" bundle:nil] autorelease];
[self.navigationController pushViewController:vc animated:YES];
EDIT: so, to clarify, you don't "add navigation controllers to existing views," you "push and pop instances of your view controllers on to the navigation controller's stack."
In my app, I require the main page to contain a toolbar at the top of the view. This view has a tableView. So my application cannot have a NavigationController.
Problem
When I want to navigate to the other view on click of the tableview cell then I am using the "pushViewController:animated:" method but it doesnt seem to work.
I checked the connections in IB. They are fine.
How can I navigate between pages without navigation controller??
I do not want to use the modal view for other views.
Please Suggest some Method.
You can use an instance of UINavigationController without having it displayed and using it for navigation.
Load your first view controller with your instance of UINavigationController in your appDelegate implementation.
Like:
FirstScreenController *fsc=[[FirstScreenController alloc]initWithNibName:#"FirstScreenController" bundle:nil];
UINavigationController *navigation=[[UINavigationController alloc]initWithRootViewController:fsc];
navigation.navigationBar.hidden=YES;
[window addSubview:navigation.view];
Here FirstScreenController can be your view controller having the toolbar and tableview.If you want to display another view on any click of the tableviewcell, call it this way.
[self.navigationController pushViewController:secondviewcontroller animated:NO];