Opening a pdf inside the app breaks the design - iphone

Question

I'm having some kind of problems with one thing, i'm making an app and i have a webview that shows a pdf file, and i have a button if clicked will call an UIDocumentInteractionController (open the pdf in a new window).
I will leave screenshots to make it easier:
When i open the app:
http://imgur.com/dpIEd
After i open the UIDocumentInteractionController:
http://imgur.com/VYV2N
Here's the code too
.h file
#interface pdfView : UIViewController <UIDocumentInteractionControllerDelegate>
{
IBOutlet UIActivityIndicatorView *loading;
IBOutlet UIWebView *Wview;
UIDocumentInteractionController *controller;
}
#property (nonatomic, retain) IBOutlet UIActivityIndicatorView *loading;
#property (nonatomic, retain) IBOutlet UIWebView *Wview;
#property (nonatomic, retain) UIDocumentInteractionController *controller;
-(void)buttonPressed;
-(IBAction)open_in:(id)sender;
-(IBAction)back:(id)sender;
#end
.m file
#import "pdfView.h"
#implementation pdfView
#synthesize loading,Wview;
#synthesize controller;
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
return YES;
}
- (void)viewDidLoad
{
[loading startAnimating];
[super viewDidLoad];
Wview.scalesPageToFit = TRUE;
Wview.multipleTouchEnabled = TRUE;
[Wview setOpaque:NO];
NSString *path = [[NSBundle mainBundle] pathForResource:#"guia_seguranca_2" ofType:#"pdf"];
NSURL *targetURL = [NSURL fileURLWithPath:path];
NSURLRequest *request = [NSURLRequest requestWithURL:targetURL];
[Wview loadRequest:request];
[loading stopAnimating];
}
-(IBAction)open_in:(id)sender
{
NSString *fileToOpen = [[NSBundle mainBundle] pathForResource:#"guia_seguranca_2" ofType:#"pdf"];
UIDocumentInteractionController* preview = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:fileToOpen]];
preview.delegate = self;
[preview presentPreviewAnimated:YES];
[preview retain];
}
-(IBAction)back:(id)sender
{
[self.view removeFromSuperview];
}
-(void)buttonPressed
{
//[self.view removeFromSuperview];
NSString *fileToOpen = [[NSBundle mainBundle] pathForResource:#"guia_seguranca_2" ofType:#"pdf"];
UIDocumentInteractionController* preview = [UIDocumentInteractionController interactionControllerWithURL:[NSURL fileURLWithPath:fileToOpen]];
preview.delegate = self;
[preview presentPreviewAnimated:YES];
[preview retain];
}
- (UIViewController *)documentInteractionControllerViewControllerForPreview:(UIDocumentInteractionController *)controller
{
return self;
}
- (UIView *)documentInteractionControllerViewForPreview:(UIDocumentInteractionController *)controller
{
return self.view;
}
- (CGRect)documentInteractionControllerRectForPreview:(UIDocumentInteractionController *)controller
{
return self.view.frame;
}
- (void)documentInteractionControllerDidEndPreview:(UIDocumentInteractionController *)controller
{
[self.controller autorelease];
}
- (void)didReceiveMemoryWarning
{
// Releases the view if it doesn't have a superview.
[super didReceiveMemoryWarning];
// Release any cached data, images, etc. that aren't in use.
}
- (void)viewDidUnload
{
[super viewDidUnload];
// Release any retained subviews of the main view.
// e.g. self.myOutlet = nil;
}
- (void)dealloc
{
[super dealloc];
[Wview release];
[loading release];
}
#end
Thanks in advance.....

Answer 1

I would suggest not useing the webview and using a pdf app (ibook, cloudreader) like this.
//name of pdf
NSString * pathString = #"userguide";
//get pdf path
NSString * filePath = [[NSBundle mainBundle] pathForResource:pathString ofType:#"pdf"];
NSURL *url = [NSURL fileURLWithPath:filePath];
self.docController = [UIDocumentInteractionController interactionControllerWithURL:url];
BOOL isValid = [self.docController presentOpenInMenuFromRect:self.handBookLaunch.frame inView:self.view animated:YES];
if (!isValid) {
NSString * messageString = [NSString stringWithFormat:#"No PDF reader was found on your device. Please download a PDF reader (eg. iBooks)."];
UIAlertView * alertView = [[UIAlertView alloc] initWithTitle:#"Error" message:messageString delegate:nil cancelButtonTitle:#"OK" otherButtonTitles:nil];
[alertView show];

Answer 2

Solved, added this code for layout verification:
-(void) viewWillAppear:(BOOL)animated
{
CGRect arect=[[UIScreen mainScreen]applicationFrame];
CGRect anotherrect=[[UIApplication sharedApplication]statusBarFrame];
if(self.view.center.y==arect.size.height/2)
self.view.center=CGPointMake(self.view.center.x, self.view.center.y+anotherrect.size.height); // fix silliness in IB that makes view start 20 pixels higher than it should on iPhone
}
source: https://discussions.apple.com/thread/2658315?start=0&tstart=0