How to correctly dismiss a UIWebView?

[glucklich_us]

Hi

I am creating programmatically a UIWebView as a result of a tap event on a UiTextView. The tap basically fires the UiWebView to display the contents
of the textView from the web in more detail. I add a button to the UiWebView with the intent to dismiss the UiWebView when one clicks the button. My question is how do I make the UiWebView disappear when the button is clicked. Any help is appreciated.

thanks
nick

[BrianSlick]

How do you make it appear in the first place?

[glucklich_us]

Originally Posted by BrianSlick

How do you make it appear in the first place?

Hi Brian

Here is a snippet:

-(IBAction) handleTapGesture: (UIGestureRecognizer *) sender
{
UIWebView *aWebView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 0, 600, 500)];//init and create the UIWebView
aWebView.autoresizesSubviews = YES;
aWebView.autoresizingMask=(UIViewAutoresizingFlexi bleHeight | UIViewAutoresizingFlexibleWidth);
//set the web view delegates for the web view to be itself
//[aWebView setDelegate:self];
//Set the URL to go to for your UIWebView
NSString *urlAddress = @"http://www.google.com";
//Create a URL object.
NSURL *url = [NSURL URLWithString:urlAddress];
//URL Requst Object
NSURLRequest *requestObj = [NSURLRequest requestWithURL:url];
//load the URL into the web view.
[aWebView loadRequest:requestObj];
//add the web view to the content view
aWebView.tag = 100;
[self.view addSubview:aWebView];

UIButton *bb = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[bb addTarget:self
action:@selector(aMethod
forControlEvents:UIControlEventTouchDown];
[bb setTitle:@"Show View" forState:UIControlStateNormal];
bb.frame = CGRectMake(80.0, 210.0, 160.0, 40.0);
[self.view addSubview:bb];
}

[BrianSlick]

The opposite of addSubview: is removeFromSuperview.

[glucklich_us]

Originally Posted by BrianSlick

The opposite of addSubview: is removeFromSuperview.

Hi Brian

I am trying to dismiss it:

-(void) aMethod
{

UIWebView *w = (UIWebView*) [self.view viewWithTag:100];
[self.view removeFromSuperview:w];

}

but I am getting that UiView may not recognize removeFromSuperview and the application crashes. Any ideas?

thanks again
nick

[BrianSlick]

It is removeFromSuperview, NOT removeFromSuperview:

You're doing it against the wrong view.

[glucklich_us]

Originally Posted by BrianSlick

It is removeFromSuperview, NOT removeFromSuperview:

You're doing it against the wrong view.

thanks Brian, still getting an error though:

-(void) aMethod
{

UIWebView *w = (UIWebView*) [self.view viewWithTag:100];
[w removeFromSuperview];

}

do I obtain a wrong reference to w somehow?

thanks
nick

[BrianSlick]

What error?

[glucklich_us]

Originally Posted by BrianSlick

What error?

here it is from console:

2011-03-07 15:11:03.843 SplitTabBar[25914:207] -[DetailViewController aMethod:]: unrecognized selector sent to instance 0x4e0ea70
2011-03-07 15:11:03.844 SplitTabBar[25914:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[DetailViewController aMethod:]: unrecognized selector sent to instance 0x4e0ea70'
*** Call stack at first throw:
(
0 CoreFoundation 0x00dbbbe9 __exceptionPreprocess + 185
1 libobjc.A.dylib 0x00f105c2 objc_exception_throw + 47
2 CoreFoundation 0x00dbd6fb -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
3 CoreFoundation 0x00d2d366 ___forwarding___ + 966
4 CoreFoundation 0x00d2cf22 _CF_forwarding_prep_0 + 50
5 UIKit 0x002c4a6e -[UIApplication sendAction:to:from:forEvent:] + 119
6 UIKit 0x003531b5 -[UIControl sendAction:to:forEvent:] + 67
7 UIKit 0x00355647 -[UIControl(Internal) _sendActionsForEvents:withEvent:] + 527
8 UIKit 0x00354438 -[UIControl touchesBegan:withEvent:] + 277
9 UIKit 0x002e9025 -[UIWindow _sendTouchesForEvent:] + 395
10 UIKit 0x002ca37a -[UIApplication sendEvent:] + 447
11 UIKit 0x002cf732 _UIApplicationHandleEvent + 7576
12 GraphicsServices 0x016f1a36 PurpleEventCallback + 1550
13 CoreFoundation 0x00d9d064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FU NCTION__ + 52
14 CoreFoundation 0x00cfd6f7 __CFRunLoopDoSource1 + 215
15 CoreFoundation 0x00cfa983 __CFRunLoopRun + 979
16 CoreFoundation 0x00cfa240 CFRunLoopRunSpecific + 208
17 CoreFoundation 0x00cfa161 CFRunLoopRunInMode + 97
18 GraphicsServices 0x016f0268 GSEventRunModal + 217
19 GraphicsServices 0x016f032d GSEventRun + 115
20 UIKit 0x002d342e UIApplicationMain + 1160
21 SplitTabBar 0x00002248 main + 102
22 SplitTabBar 0x000021d9 start + 53
)
terminate called after throwing an instance of 'NSException'

[BrianSlick]

Ok...

[DetailViewController aMethod:]: unrecognized selector sent to instance 0x4e0ea70

[glucklich_us]

Originally Posted by BrianSlick

Ok...

[DetailViewController aMethod:]: unrecognized selector sent to instance 0x4e0ea70

Hi Brian

if you have any ideas please let me know, I appreciate it

thanks
nick

[BrianSlick]

You are calling the wrong method. Read what the error is telling you.