Problem with the scrollbar of a UIWebView

Im using a UIWebView to access a website, when i rotate the phone (landscape) the UIWebView is properly resized and the scrollbar are on the right place (on the right edge...) but when i acess any of input fields to fill the information required and exit it the UIWebView scrollbar jumps to the middle of screen (looks like it get back to 320, the width of the screen on portrait). Some useful info, this program was created using IB, have lots of outlets, im thinking about in do (redo) everything programmatically cause i was not the author of the first versi开发者_如何学Pythonon... If anyone have seen this before plz let me know..

Thanks in advance!

Dont add your webview into self.view just assign it.Simple thing works like awesome

wv = [[UIWebView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];

[self.view addSubview:wv];

instead do

self.view = wv;

In my test case I found that I can replicate this problem by going to a web site that accepts input, invoking the keyboard, dismissing the keyboard (with or without entering any input) and now the vertical scroll bar's display is in the Portrait position.

I tested with and without a NIB and the results are consistent. Once the keyboard is invoked, the vertical scroll bar will remain at the Portrait coordinates when the phone (or simulator) is in Landscape mode.

I submitted case# 7428286.

I received a response from Apple about the possible bug reported, they asked for a sample code that can reproduce the problem, i sent to them and im posting it here so you can test too:

//
//  viewController.m
//  TesteWebview
//
//  Created by GecanMobile01 on 13/11/09.
//  Copyright xxx All rights reserved.
//

#import "viewController.h"


@implementation viewController

@synthesize vw, wv;

/*
 // The designated initializer.  Override if you create the controller programmatically and want to perform customization that is not appropriate for viewDidLoad.
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {
        // Custom initialization
    }
    return self;
}
*/

// Implement loadView to create a view hierarchy programmatically, without using a nib.
- (void)loadView {
    vw = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];
    [vw setBackgroundColor:[UIColor grayColor]];
    vw.autoresizesSubviews = YES;
    self.view = vw;
    wv = [[UIWebView alloc] initWithFrame:[[UIScreen mainScreen] applicationFrame]];

    [self.view addSubview:wv];
}

// Implement viewDidLoad to do additional setup after loading the view, typically from a nib.
- (void)viewDidLoad {
    NSURL *urlId = [NSURL URLWithString:@"https://www.google.com"];
    NSURLRequest *theRequest = [NSURLRequest requestWithURL:urlId cachePolicy:NSURLRequestReloadIgnoringCacheData timeoutInterval:(NSTimeInterval)10.0];
    [wv loadRequest:theRequest];
    [super viewDidLoad];
}

// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
    CGRect  cgrWebView;
    BOOL    bChangeOrientation = NO;
    if (interfaceOrientation == UIInterfaceOrientationPortrait || interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight){
        if (interfaceOrientation == UIInterfaceOrientationPortrait) {
            cgrWebView = CGRectMake(0.0, 0.0, 320.0, 460.0);
            bChangeOrientation = YES;
        } else {
            cgrWebView = CGRectMake(0.0, 0.0, 480.0, 320.0);
            bChangeOrientation = YES;
        }
        [wv setFrame:cgrWebView];
    }
    return bChangeOrientation;
}

- (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 {
    // Release any retained subviews of the main view.
    // e.g. self.myOutlet = nil;
}


- (void)dealloc {
    [super dealloc];
}


@end

I reported a Bug on begreport.apple.com about this issue.

And today (04/21/2010) got an answer!

"Hello Paulo,

This is a follow-up to Bug ID# 7392537. Engineering believes this issue has been addressed in iPhone OS 4.0 beta seed 2. (8A248c)

After installing the iPhone OS 4.0b2 software, please update this bug report with your results.

Thank you for your time. We truly appreciate your assistance in helping us discover and isolate bugs. Best Regards,

Patrick Collins Apple Developer Connection Worldwide Developer Relations"

I was facing the same problem but I set the frame of web view in

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
{
BOOL orientation = NO;
    if(interfaceOrientation == UIInterfaceOrientationPortrait)
    {
          [webView setFrame:CGRectMake(0, 0, 320, 480)];
             orientation = YES;
        return orientation;
         }else if(interfaceOrientation == UIInterfaceOrientationLandscapeRight)
    {
            [webView setFrame:CGRectMake(0, 0, 480, 320)];
             orientation = YES;
        return orientation; 
         }else {
        orientation = NO;
        return orientation;
    }
}