UITableview won't show from modalView

[jmktayag]

Hi guys,

I have a tableview in a view which doesn't show when I use a modal view to push the view but if I add the view as a subview the tableview shows. What is my problem here? I really need your help guys.

[Domele]

Post code please.

[jmktayag]

Originally Posted by Domele

Post code please.

Here is my code from myView which is inside a touch event

PHP Code:

ViewAccountController *postViewController = [[ViewAccountController alloc] init];
    
    postViewController.modalPresentationStyle = UIModalPresentationPageSheet;
    [postViewController setModalTransitionStyle:UIModalTransitionStyleCrossDissolve];
    [self presentModalViewController:postViewController animated:YES];
    postViewController.view.superview.frame = CGRectMake(0, 0, 600, 450);
    postViewController.view.superview.center = self.view.center;
    
    [postViewController release]; 


and the view which is supposed to shown

PHP Code:

@interface ViewAccountController : UIViewController<UITableViewDataSource, UITableViewDelegate>{
    UITableView *contactsTbl;
}

@property(nonatomic, retain) IBOutlet UITableView *contactsTbl;

@end 


I have properly connected the tableview in IB.It's just a simple modalview which I can't get to run. I really don't know where I went wrong.

[Domele]

I don't know how or why it would cause it but try removing your postViewController.view.superview calls. I just have a hunch. And either way your superview.center call is redundant.

[jmktayag]

Originally Posted by Domele

I don't know how or why it would cause it but try removing your postViewController.view.superview calls. I just have a hunch. And either way your superview.center call is redundant.

if I remove the superview it will only remove the backgroundview and still the table doesn't show. when I tried to resize the table to the whole view it shows the table but when i want to return it to its original size, again the table doesn't show. see the image i have attached what happens to the table after I resized it.

Thanks,

[jmktayag]

I have also attached what my design in interface builder. hope this helps.

[Domele]

Oh... That's not how modal view controllers are supposed to work. Modal view controllers are meant to take up the whole screen. (Edit: The only time it shouldn't take up the whole screen is when you are presenting as a page sheet and a form sheet on iPad, even then it's basically the whole screen.) If you are targeting iOS 5+, use addChildViewController:. If you are targeting under that, you'll have to just manage the controllers yourself and use addSubview.

[jmktayag]

Can you further discuss how to use addChildViewController? Can I also present it in a modal view?

[Domele]

I can't explain it since I haven't used it myself yet and there doesn't seem to be any tutorials online. I think you just call it like you would presentModal...

[jmktayag]

Ok. I think I'll just need to give it a try. Thanks man! I appreciate it!

[Duncan C]

Originally Posted by jmktayag

Can you further discuss how to use addChildViewController? Can I also present it in a modal view?

I've done a project using child view controllers. It's cool. The introduction to the UIViewController class has a pretty good discussion of the new container view controller feature of iOS 5. That's all I needed in order to make it work, and I got it working the first time, without having to fiddle with it. I found it clean and easy to use.

In iOS 5, a view controller can manage one or more child view controllers, who's content view(s) become subviews of their parent view controller.

The addChildViewController call tells the parent view controller about the child view controller. You add all the child view controllers that the parent will ever manage, before ever displaying any of them. That method doesn't actually do anything visible.

Once you add a view controller as a child view controller, you can install the child view controller's content view as a subview of the parent view controller.

The method transitionFromViewController:toViewController:dura tionptions:animations:completion: is the workhorse method that lets you switch child view controllers. That method lets you build your own parent view controller that acts like a navigation controller, tab controller, or create a novel type of container controller.

What I did was to set up a parent view controller that had subviews that were laid out to contain child view controllers. I created a tab bar like view that went across the bottom. Above that was a view to hold a "content view". I wrote a method showContentViewAtIndex:withTransition: that took an index to a child view controller and swaps it into place with one of several transitions. That method was very easy to write using the new transitionFromViewController:toViewController:dura tionptions:animations:completion: method.

There's also a method automaticallyForwardAppearanceAndRotationMethodsTo ChildViewControllers, that if you make it return TRUE, causes the system to forward rotation and other appearance changes to child view controllers.

It shouldn't be too hard to create a custom modal view controller facility in your app's view controllers. You'd create a new parent class for "normal" view controllers, and have it accept a view controller that you wanted to display modally and make it a child. You could then implement a modal transition. You would need to add a partly transparent overlay over the rest of the view controller's content to prevent the user from clicking on something until dismissing the "modal" view controller.

The code I wrote is under NDA, and tightly entwined with that project, so I can't really share it.

[jmktayag]

Thanks man! I'm really learning a lot. I'm gonna try it now! Excited!