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IPhone application - adding another view

 3 years ago
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IPhone application - adding another view

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I am working on an iPhone app but found that I require another view / window to get the user to input and save data / information there.

How do I add another view? Do I add it in interface builder and then link it in the main app delegate or will it have its own .h and .m files.

I selected a window view app to start with, do I need to start over with a flip side view app or can this just be added in anyway if I have the correct code there.

manny thanks

The Window app is perfect for you. In your AppDelegate file, you should have a section like this:

- (void)applicationDidFinishLaunching:(UIApplication *)application {    

    //instantiate the venue view controller object
    YourViewController *yourViewController = [[YourViewController alloc] initWithNibName:@"YourView" bundle:[NSBundle mainBundle]];

    // Configure and show the window
    [window addSubview:[yourViewController view]];
    [window makeKeyAndVisible];

}

This is the part of the code that declares, allocates and adds your custom view to the window. You have a couple choices for how to add the second view. You can either add it in place of this one, or add it after this one using a Navigation Controller. To add the navigation controller, change the above method to look like this:

- (void)applicationDidFinishLaunching:(UIApplication *)application {    

//instantiate the venue view controller object
YourViewController *yourViewController = [[YourViewController alloc] initWithNibName:@"YourView" bundle:[NSBundle mainBundle]];
    UINavigationController *yourViewControllerWrapper = [[UINavigationController alloc] initWithRootViewController: yourViewController];

// Configure and show the window
[window addSubview:[yourViewControllerWrapper view]];
[window makeKeyAndVisible];

}

There, we create your custom view, then wrap it in a navigation controller. The navigation controller is what gets added to the window. Next the code to switch to the second view would look like this, assuming you switch views on a button press:

-(IBAction)switchViewController{
    MySecondViewController *secondViewController = [[MySecondViewController alloc] init];

    [self.navigationController pushViewController:secondViewController];
}

Of course, you should replace the line

MySecondViewController *secondViewController = [[MySecondViewController alloc] init];

with the proper way of instantiating your second view controller. This could be from a nib file like above, or programmatically.

As far as creating the view files, you should create a nib in Interface builder for the layout of everything, then create a .h and .m file for the ViewController code itself.


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