iPhone iOS 6 - Dismissing a subview crashes - iphone

Question

I can't quite figure out what's going on but I have a view that displays a subview when a users selects a button. This subview then also has a button the user can select to cancel and remove this subview. When all of this happens, my app crashes when you attempt to close the subview.
This is my code:
From the main view that shows the subview when a button is selected -
-(IBAction)sendMessage:(id)sender{
NSLog(#"Going to send a message....");
CGRect frameBounds = [self.view bounds];
float frameWidth = frameBounds.size.width;
float frameHeight = frameBounds.size.height;
float frameX = frameBounds.origin.x;
//float frameY = frameBounds.size.height / 2;
float frameY = frameBounds.size.height;
float finalY = frameBounds.size.height / 1.75;
MessageChooserController *chooser = [[MessageChooserController alloc] initWithNibName:#"MessageChooser" bundle:nil];
//Set the frame off the screen at the bottom
chooser.view.frame = CGRectMake(frameX, frameY, frameWidth, frameHeight);
[self.view addSubview:chooser.view];
[UIView animateWithDuration:0.5 animations:^{chooser.view.frame = CGRectMake(frameX, finalY, frameWidth, frameHeight);}];
}
As you can see this simply shows a new subview - MessageChooserController. Now this subview, MessageChooserController has a button to cancel this "action".
The header file for MessageChooserController:
#import <UIKit/UIKit.h>
#interface MessageChooserController : UIViewController
#property (weak, nonatomic) IBOutlet UIButton *btn_sendEmail;
#property (weak, nonatomic) IBOutlet UIButton *btn_sendText;
#property (weak, nonatomic) IBOutlet UIButton *btn_cancel;
-(IBAction)closeChooser:(id)sender;
#end
And its implementation:
#import "MessageChooserController.h"
#interface MessageChooserController ()
#end
#implementation MessageChooserController
#synthesize btn_cancel, btn_sendEmail, btn_sendText;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
/*
[btn_cancel setBackgroundImage:[[UIImage imageNamed:#"iphone_delete_button.png"] stretchableImageWithLeftCapWidth:8.0f topCapHeight:0.0f] forState:UIControlStateNormal];
*/
/*
UIImage *cancelButtonImage = [[UIImage imageNamed:#"iphone_delete_button"] resizableImageWithCapInsets:UIEdgeInsetsMake(30,0,30,0)resizingMode:UIImageResizingModeStretch];
[btn_cancel setBackgroundImage:cancelButtonImage forState:UIControlStateNormal];
*/
}
-(IBAction)closeChooser:(id)sender{
[self.view removeFromSuperview];
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
#end
As you can see I have a simple method to close this subview, closeChooser. All of this compiles but when I select the cancel button on the subview my app crashes. I can't find anything anywhere about this.
Essentially I want to have a view display like it does when you select "Send message" from your contacts.

Answer 1

The correct way of doing this is calling [self presentModalViewController:viewController] on the parent view controller and then calling [self dismissModalViewController] when you want to hide it.