iOS UIWebView Size based on window - iphone

Question

I've got an app that uses a UIWebView. Currently I create the web view using a storyboard but I want to create it programatically.
This needs to work across all devices and iOS 5 - 7.
Currently (using the storyboard) in iOS 6 it looks like this:
But in iOS 7 you don't get that white bar at the top:
How can I create the UIWebView programatically so that it fills available window space (i.e. doesn't go over tab bar or status bar) across all devices?
Thanks
//EDIT
Here's my storyboard for the UIWebView
//Edit 2
As per a suggestion I am doing this but it overlaps the status bar and tab bar. Is there any way to take them into account?
float width = [UIScreen mainScreen].bounds.size.width;
float height = [UIScreen mainScreen].bounds.size.height;

Answer 1

try to set your webview's frame programmatically like this
float width = [UIScreen mainScreen].bounds.size.width;
NSLog(#"width: %f", width);
float height = [UIScreen mainScreen].bounds.size.height;
NSLog(#"height: %f", height);
so your webview's frame should be
objWeb.frame = CGRectMake(0,0,width,height);

Answer 2

Okay, self.view will be resized at somewhere between viewDidLoad and viewWillAppear.
So, if you wanted to adjust the size, you should do it in viewWillApear.
But, my suggestion is use AutoResizeMask, or |[webView]| for auto layout.
AutoReszie
add your webView to self.view as subView, set the frame to self.view.boudse, and then
webView.autoResizeMask = UIViewAutoResizeMaskFliexbleHeight|UIViewAutoResizeMaskFliexbleWidth;
let me know if you need autoLayout version.

Answer 3

This is what worked for me based on others answers
-(void)createWebView
{
float width = self.view.bounds.size.width;
float height = self.view.bounds.size.height;
UIWebView *wv = [[UIWebView alloc] initWithFrame:CGRectMake(0, 20, width, height)];
wv.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
wv.scalesPageToFit = YES;
wv.delegate = self;
[self.view addSubview:wv];
}