Question

stuck at this, seeking advice.

What i did and my Project:
i make a book for children. Every page is a custom ViewController. On every Page i have a button for next and previous Page.
I use the AppDelegate to load the ViewControllers.
My AppDelgate starts with the ViewController1 and when i Press the Button/swipe in ViewController1 it should Load the ViewController2 but nothing happens.

My Code in AppDelegate:

self.view1 = [ViewController1 alloc];
[window addSubview:view1.view];
[window makeKeyAndVisible];

- (void)goToNextPage {
    view2 = [ViewController2 alloc];    
    UIView *current = self.window;
    [self.window addSubview:view2.view];

    CATransition *animationT = [CATransition animation];
    [animationT setDuration:0.5];
    [animationT setType:kCATransitionMoveIn];
    [animationT setSubtype:kCATransitionFromRight];
    [animationT setTimingFunction:[CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut]];
    [[current layer] addAnimation:animationT forKey:@"SwitchToView1"];

 NSLog(@"works2");
}

Here my ViewController1:

- (void)addButtonNext { 
     UISwipeGestureRecognizer *swipeGesture = [[[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector       (buttonClicked:)] autorelease];
    swipeGesture.numberOfTouchesRequired = 1;
    swipeGesture.direction = (UISwipeGestureRecognizerDirectionLeft);
    [self.view addGestureRecognizer:swipeGesture];
    NSLog(@"works0");
}


- (void)buttonClicked:(id)sender {
    NSLog(@"works1");
    AppDelegate* next = [AppDelegate alloc];
    [next goToNextPage];
}

My Console says works0 works1 works2.
Any idea?

Thanks in advance

Answer 1

Dont allocate the application delegate
you need to deal with it like this

AppDelegate *next =(AppDelegate *) [[UIApplication sharedApplication] delegate];
[next goToNextPage];