iOS 7 to iOS 6 support [closed] - iphone

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I have an app running on iOS 7. Now I want to support is 6+. Here is screenshot on iOS 7.
When I changed the deployment target to 6.0, things are positioned strangely on the screen. It shifted everything downward.
How can I fix it? Do I have to handle the positioning manually according to iOS version?
BTW I am not using auto layout.

Answer 1

At least two ways to handle this:
1. The big difference here is 0 in the y direction is actually 66px higher on screen in iOS7, by default, since views extends under the navigation bar and status bar.
If you're using storyboards, the simplest fix is to uncheck the 'under top bars' and 'under bottom bars' option when selecting your view controller.
However, this isn't the direction Apple's going in iOS7, though.
2. You can do the same as #1 by using the edgesForExtendedLayout property of your view controller.
3. If you're not using autolayout, then you can select your main view and change the iOS6/7 deltas option. In this case, you would want to enter -66 in the delta-Y box and 66 in the delta-height box. These are essentially insets that are applied to views when your app runs on iOS6.
4. Use autolayout with appropriate constraints and it should just work. I say should because it's easier to use autolayout if you think of layout in terms of relationships instead of frames and positions.

Answer 2

These are basics of iOS 7 UI. You have to read the transition docs, it's a MUST for iOS developers(you have to login ofcourse) :
https://developer.apple.com/library/ios/documentation/UserExperience/Conceptual/TransitionGuide/index.html#//apple_ref/doc/uid/TP40013174
And you definitely have to watch the WWDC movies, especially:
building user interfaces for ios 7 (video number 201)
customizing your app's appearance for ios 7 (video number 214)
You can find them for free in iTunes.
Regarding you question:
It is the new iOS 7 approach that causes you issue. In iOS 7, the nav bar is translucent by deafult. In iOS 6 its not.
In case of translucency - the origin {0,0} is right under the navBar. So if the UIView with such origin in the first case will be under the nav bar, in second case - bellow. You can even notice the new iOS 7 approach of making everything under it nice and blurry - thanks to translucency.
To fix it, use
if (floor(NSFoundationVersionNumber) <= NSFoundationVersionNumber_iOS_6_1) {
// Load resources for iOS 6.1 or earlier
} else {
// Load resources for iOS 7 or later
}
and do the proper code formatting, like changing the origin in different cases.
It is very well explained, and so many more important updates in the docs and the videos that you really should check out, if you want not just to blindly develop, but also understand what are you doing.

Answer 3

Make a backup or copy
Switch back the "View as" property from 7.0 and later to iOS 6.1 and Earlier.
Beware, all your iOS7 prior settings will be lose after switching back
Rearrange the x coordinate to all subviews because everything will be a bit downer now.
(Because in iOS7 the default x=0 coordinates are under the navigation and status bar, and in pre-iOS7 it starts right above the navigation bar or status bar)
At viewDidLoad add the following line:
if ([self respondsToSelector:#selector(setEdgesForExtendedLayout:)]) [self setEdgesForExtendedLayout:UIRectEdgeNone];

Answer 4

Did you Try
self.edgesForExtendedLayout=UIRectEdgeNone;
Try
if (NSFoundationVersionNumber > NSFoundationVersionNumber_iOS_6_1) {
// here you go with iOS 7
self.edgesForExtendedLayout=UIRectEdgeNone;
}