0 votes 0 answers 16 views Navigation controller in landscape, pop scrolls up

JJSaccolo · 01-31-2011, 05:56 AM

EDIT: i'm sorry, i've copied "0 votes 0 answers 16 views", my mistake! Please, delete it!

Hi everyone!
first of all: i'm italian, so sorry for my bad english!

So... my app uses a navigation controller (created with IB): inside it there is a UIButton connected with an IBAction that does the push in another view.
This view (is called "abc") is created doing this: "File -> New File -> UIViewController Sub Class (with "With XIB for user interface" checked) anche with .m and .h files".

I'm doing the push with this code:

Code:

abc *myview = [[abc alloc] initWithNibName:@"abc" bundle:[NSBundle mainBundle]];
[self pushViewController:myview animated:YES];

of course, in "NavigationController_Class.h" (the class of my navigation controller) i've write this:

Code:

#import "abc.h"

Now, i want to add the landscape support: in "NavigationController_Class.m" and in "abc.m" i've inserted this code:

Code:

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
        return YES;
}

(i want to support all InterfaceOrientation, so i return YES).

What's the problem?
It works, ok, but when you are seeing "abc" view and you touch the button for pop the view from the stack, the Navigation Controller scrolls not from the right to the left, but from up to down!

Do you know what's the problem?

Thanks!

iSDK · 01-31-2011, 11:38 AM

Quote:

Originally Posted by JJSaccolo

I'm doing the push with this code:

Code:

abc *myview = [[abc alloc] initWithNibName:@"abc" bundle:[NSBundle mainBundle]];
[self pushViewController:myview animated:YES];

A UIViewController cannot push another view controller. Check the documentation for UIViewController to see what you can do in the sense of presenting Modal View Controllers.

However you mentioned above that you are using a navigationController. In this sense, you need to do

Code:

self.navigationController push.....

Rather than

Code:

 self pushView.....

JJSaccolo · 02-01-2011, 06:44 AM

Quote:

Originally Posted by iSDK

A UIViewController cannot push another view controller. Check the documentation for UIViewController to see what you can do in the sense of presenting Modal View Controllers.

sorry but... i have a Navigation Controller! It can push a UIViewController!
from the documentation "UINavigationController Class Reference": pushViewController:animated: Pushes a view controller onto the receiver’s stack and updates the display.

So i can do it (or no?)

Quote:

Originally Posted by iSDK

However you mentioned above that you are using a navigationController. In this sense, you need to do

Code:

self.navigationController push.....

Rather than

Code:

 self pushView.....

for the same reason, self indicate my navigationController! (it's write in NavigationController_Class.m, non in abc.m)
If i write

Code:

self.navigationController push.....

ti doesn't works!

BrianSlick · 02-01-2011, 06:49 AM

There is very rarely a reason to subclass UINavigationController. Why did you do it?

JJSaccolo · 02-01-2011, 08:24 AM

maybe beacause i'm a newbie

or better... because it's the only way that i know to build a navigation controller!

so, i don't understand: what do you suggest?
a UIViewController with a UINavigationItem that push (how??) another view?

BrianSlick · 02-01-2011, 08:57 AM

Navigation controllers contain/manage view controllers, not the other way around.

Make a new project using the navigation template, and observe how it is set up.

JJSaccolo · 02-01-2011, 11:29 AM

did it! and... it's like i did!
the only difference is that the NavigationController load a xib from another file (instead i put a view inside the navigationController).

Also the method for push a viewController is the same:

Code:

 DetailViewController *detailViewController = [[DetailViewController alloc] initWithNibName:@"<#Nib name#>" bundle:nil];
	 [self.navigationController pushViewController:detailViewController animated:YES];
	 [detailViewController release];

Here's a recap

- in "MainWindow_iPhone.xib" i have a NavigationController.
- in the appDelegate i declare this navigationController with his property, then in didFinishLaunchingWithOptions i write this

Code:

[self.window addSubview:navcontroller.view];

and i connect the navigationController with the appDelegate in IB.
- i write the class "navigationcontroller_class" .h and .m
- i write a new file "abc" .h, .m and .xib
- in "navigationcontroller_class.h" i write

Code:

#import "abc.h"

- in "navigationcontroller_class.m" i write

Code:

-(IBAction)go_to_abc{
	abc *myview = [[abc alloc] initWithNibName:@"abc" bundle:[NSBundle mainBundle]];
	[self pushViewController:myview animated:YES];
}

- in "abc.h" this is the interface

Code:

@interface abc : UIViewController {
  ...
  ...
}

Isn't like the Navigation-base Application?

BrianSlick · 02-01-2011, 11:32 AM

Code:

navigationcontroller_class.h

Is this class horribly misnamed, or is it a navigation controller subclass?

JJSaccolo · 02-01-2011, 11:36 AM

Quote:

Originally Posted by BrianSlick

Code:

navigationcontroller_class.h

Is this class horribly misnamed, or is it a navigation controller subclass?

ahah

in IB i select my navigationController, in the inspector i go to "identity" tab and in "class" i write "navigationcontroller_class".
Then File -> write class files -> navigationcontroller_class.m and .h

BrianSlick · 02-01-2011, 11:37 AM

Post the .h file.

JJSaccolo · 02-01-2011, 11:40 AM

Quote:

Originally Posted by BrianSlick

Post the .h file.

Code:

#import <UIKit/UIKit.h>
#import <Foundation/Foundation.h>
#import "abc.h"

@interface navigationController_class : UINavigationController {
	//here i have only uibuttons and uilabels
}


-(IBAction)go_to_abc;

@end