Navigation between NSVIewController - macos

Question

I am very new to MAC OSX app development.
In my application I have three NSViewControllers, which are PracticeController, NoteController and QuestionController. I have to navigate to NoteViewController from PracticeController and QuestionController and comeback to the viewController from which NoteController has navigated.
For example: when we navigate to NoteController from PracticeController, then when we tap on back button from NoteController I have to come to PracticeController, and when we navigate to NoteController from QuestionController, then when we tap on back button from NoteController I have to come to QuestionController.
Please help me how to do this? I am badly searching for it. Thanks.

Answer 1

well, after a long time search, I found a open source library which ports the UIKit to MacOSX.
https://github.com/BigZaphod/Chameleon.git
But it's too complicated for me, so I wrote my own Navigation controller.
NSNavigationController.h
#import <Cocoa/Cocoa.h>
#class BaseViewController;
#interface NSNavigationController : NSResponder
#property (nonatomic, strong) BaseViewController *rootViewController;
- (id)initWithRootViewController:(BaseViewController *)rootViewController;
- (NSView*)view;
- (void)pushViewController:(BaseViewController *)viewController animated:(BOOL)animated;
- (BaseViewController *)popViewControllerAnimated:(BOOL)animated;
#end
NSNavigationController.m
#import "NSNavigationController.h"
#import "AppDelegate.h"
#import "BaseViewController.h"
#interface NSNavigationController ()
#property (nonatomic, strong) NSMutableArray *viewControllerStack;
#end
#implementation NSNavigationController
- (id)initWithRootViewController:(BaseViewController *)rootViewController
{
self = [super init];
if (self) {
self.rootViewController = rootViewController;
self.rootViewController.navigationController = self;
self.viewControllerStack = [[NSMutableArray alloc] initWithObjects:self.rootViewController, nil];
}
return self;
}
- (NSView*)view
{
BaseViewController *topViewController = [self.viewControllerStack objectAtIndex:[self.viewControllerStack count] - 1];
return topViewController.view;
}
- (void)pushViewController:(BaseViewController *)viewController animated:(BOOL)animated
{
if (viewController != nil) {
[self removeTopView];
[self.viewControllerStack addObject:viewController];
viewController.navigationController = self;
[self addTopView];
}
}
- (BaseViewController *)popViewControllerAnimated:(BOOL)animated
{
BaseViewController *topViewController = [self.viewControllerStack objectAtIndex:[self.viewControllerStack count] - 1];
[self removeTopView];
[self.viewControllerStack removeLastObject];
[self addTopView];
return topViewController;
}
- (void)removeTopView
{
BaseViewController *topViewController = [self.viewControllerStack objectAtIndex:[self.viewControllerStack count] - 1];
[topViewController.view removeFromSuperview];
}
- (void)addTopView
{
BaseViewController *topViewController = [self.viewControllerStack objectAtIndex:[self.viewControllerStack count] - 1];
AppDelegate *delegate = (AppDelegate*)[NSApp delegate];
[delegate.window.contentView addSubview:topViewController.view];
}
#end
BaseViewController.h
#import <Cocoa/Cocoa.h>
#class NSNavigationController;
#interface BaseViewController : NSViewController
#property (nonatomic, weak) NSNavigationController *navigationController;
#end
BaseViewController.m
#import "BaseViewController.h"
#interface BaseViewController ()
#end
#implementation BaseViewController
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Initialization code here.
}
return self;
}
#end
It's the simplest NavigationController. I didn't implement the view animation. Hope it can help.