UIView real frame in iOS7 - ios6

Question

I need to add some view in iOS 7. And in the same time my project have to work on iOS 6.
How can I do it programmacly? I want to see the same position of "i"-button on 2 versions of app.

Answer 1

Here's a category I put on a ViewController. It might not be the smartest method but it works for my views. All my apps build the UI's programatically. If you set the frame of a view to this after it has been loaded, it will behave the same in iOS 7 as in earlier versions. The code isn't kludgy in that it doesn't rely on the version rather the characteristics of the superview. I'm open to any comments.
#implementation UIViewController (effectiveContentFrame)
// determine frame size and offset to get the max frame we can get for the current view and orientation
// needed this after the introduction of iOS 7 where frames are handled slightly differently
// note: it uses the different heights/widths at the current rotation
/*
iOS 6 portrait
application Frame: = (0.000000,20.000000) 320.000000x460.000000 )
superview Frame = (0.000000,20.000000) 320.000000x460.000000 )
iOS7 portrait
application Frame: = (0.000000,20.000000) 320.000000x460.000000 )
superview Frame = (0.000000,0.000000) 320.000000x480.000000 )
*/
- (CGRect) effectiveContentFrame
{
CGRect rect;
UIInterfaceOrientation orientation = [UIApplication sharedApplication].statusBarOrientation;
CGRect statusBarFrame = [UIApplication sharedApplication].statusBarFrame;
CGFloat statusBarHeight = 0.;
rect = self.view.superview.frame; // the frame will be relative to the superview. Note in iOS6 the root superview frame includes the
if (UIInterfaceOrientationIsPortrait(orientation))
{
rect.size.height += rect.origin.y; // total height
statusBarHeight = statusBarFrame.size.height;
}
else
{
rect.size.height += rect.origin.x; // total height
statusBarHeight = statusBarFrame.size.width;
}
CGFloat extraHeight = 0; // this is going to be how much extra height we have to take off of the total height of the frame,
// which is going to be the status bar+navbar+toolbar heights
CGFloat topHeight = 0; // this is the height of the stuff before the frame, which we are going to use as an offset
if (![UIApplication sharedApplication].statusBarHidden)
extraHeight += statusBarHeight;
if (!self.navigationController.navigationBar.isHidden)
extraHeight += self.navigationController.navigationBar.frame.size.height;
topHeight = extraHeight;
if (!self.navigationController.toolbar.isHidden)
extraHeight += self.navigationController.toolbar.frame.size.height;
rect.origin.y = topHeight - rect.origin.y; // in iOS6 the status bar and navbar is already included in the origin but not in iOS7 .
if (rect.origin.y < 0)
rect.origin.y = 0;
rect.size.height -= extraHeight; // subtract status/nav and toolbar heights from the total height left in the superview
return rect;
}

Answer 2

It seems that type of Top Bar of your main view is Translucent Navigation Bar. Try to change it in IB to Opaque Navigation Bar.
I have had the same problem when I upgraded to the new xCode. I think this is because in older version opaque type was first in the list and now translucent on it's place.
Also, you can try self.edgesForExtendedLayout = UIRectEdgeNone; in your UIViewController

Answer 3

In Xcode 5 IB you can find iOS 6 / 7 deltas. All that you need is just adjust them.

Answer 4

The answer in C#
public static RectangleF GetUsableContentSize(this UIViewController viewController) {
RectangleF rect;
UIInterfaceOrientation orientation = UIApplication.SharedApplication.StatusBarOrientation;
RectangleF statusBarFrame = UIApplication.SharedApplication.StatusBarFrame;
float statusBarHeight = 0.0f;
var view = viewController.View;
if (view.Superview != null)
rect = view.Superview.Frame; // the frame will be relative to the superview. Note in iOS6 the root superview frame includes the
else
rect = view.Frame;
if (orientation == UIInterfaceOrientation.Portrait || orientation == UIInterfaceOrientation.PortraitUpsideDown)
{
rect.Height += rect.Y; // total height
statusBarHeight = statusBarFrame.Height;
}
else
{
rect.Height += rect.X; // total height
statusBarHeight = statusBarFrame.Width;
}
float extraHeight = 0; // this is going to be how much extra height we have to take off of the total height of the frame,
// which is going to be the status bar+navbar+toolbar heights
float topHeight = 0; // this is the height of the stuff before the frame, which we are going to use as an offset
if (!UIApplication.SharedApplication.StatusBarHidden)
extraHeight += statusBarHeight;
if (!viewController.NavigationController.NavigationBar.Hidden)
extraHeight += viewController.NavigationController.NavigationBar.Frame.Height;
topHeight = extraHeight;
if (!viewController.NavigationController.Toolbar.Hidden)
extraHeight += viewController.NavigationController.Toolbar.Frame.Height;
rect.Y = topHeight - rect.Y; // in iOS6 the status bar and navbar is already included in the origin but not in iOS7 .
if (rect.Y < 0)
rect.Y = 0;
rect.Size.Height -= extraHeight; // subtract status/nav and toolbar heights from the total height left in the superview
return rect;
}