以编程方式定义的uiwebview不可见

Question

I am defining a uiwebview programmatically and its delegate and requests are done but still no visible! why? Thank you

//do some loads on webviewSocial defined on IB and then set it to nil in order to init it after.

self.webViewSocial = nil;

self.webViewSocial = [[UIWebView alloc] initWithFrame:CGRectMake(0, 44, 320, 389)];
self.webViewSocial.autoresizingMask=(UIViewAutoresizingFlexibleHeight | 
                                       UIViewAutoresizingFlexibleWidth);
[self.webViewSocial setDelegate:self];
[self.vistaSocial addSubview:self.webViewSocial];

If I set a new webview it works but problem seems that webviewsocial is set on IB and after this coding is not visible anymore.

Answer 1

Some general notes:

• make sure that self.vistaSocial is not nil
• make sure that self.vistaSocial is added to self.view

Also dont release the webView and then reinitialize it Just change the properties of the existing webView For example if you want to change the frame of the existing webView and moving it to the new super view, you would do the following

self.webViewSocial = CGRectMake(0, 44, 320, 389);
[self.vistaSocial addSubview:self.webViewSocial];

You dont need to release it and reinitialize a new one

Answer 2

I suggest removing webViewSocial as an IB object since you're actually making it nil then re-initializing it programmatically, it's redundant.

If clearing your browser history is the ultimate goal, try this instead:

[webViewSocial stringByEvaluatingJavaScriptFromString:@"document.body.innerHTML = \"\";"];