转自:http://*.com/questions/17074365/status-bar-and-navigation-bar-appear-over-my-views-bounds-in-ios-7
Question: I recently downloaded Xcode DP to test my apps in iOS . The first thing I noticed and confirmed is that my view's bounds is not always resized to account for the status bar and navigation bar. In viewDidLayoutSubviews, I print the view's bounds: {{, }, {, }} This results in my content appearing below the navigation bar and status bar. I know I could account for the height myself by getting the main screen's height, subtracting the status bar's height and navigation bar's height, but that seems like unnecessary extra work. How can I fix this issue? Update: I've found a solution for this specific problem. Set the navigation bar's translucent property to NO: self.navigationController.navigationBar.translucent = NO;
This will fix the view from being framed underneath the navigation bar and status bar. However, I have not found a fix for the case when you want the navigation bar to be translucent. For instance, viewing a photo full screen, I wish to have the navigation bar translucent, and the view to be framed underneath it. That works, but when I toggle showing/hiding the navigation bar, I've experienced even stranger results. The first subview (a UIScrollView) gets its bounds y origin changed every time.
You can achieve this by implementing a new property called
You need to add the above in your iOS 7 brings several changes to how you layout and customize the appearance of your UI. The changes in view-controller layout, tint color, and font affect all the UIKit objects in your app. In addition, enhancements to gesture recognizer APIs give you finer grained control over gesture interactions. Using View Controllers In iOS 7, view controllers use full-screen layout. At the same time, iOS 7 gives you more granular control over the way a view controller lays out its views. In particular, the concept of full-screen layout has been refined to let a view controller specify the layout of each edge of its view. The To adjust how a view controller lays out its views,
The
If your design uses opaque bars, refine
If you don’t want a scroll view’s content insets to be automatically adjusted, set
The Please refer, apple doc |
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You don't have to calculate how far to shift everything down, there's a build in property for this. In Interface Builder, highlight your view controller, and then navigate to the attributes inspector. Here you'll see some check boxes next to the words "Extend Edges". As you can see, in the first screenshot, the default selection is for content to appear under top and bottom bars, but not under opaque bars, which is why setting the bar style to not translucent worked for you. As you can somewhat see in the first screenshot, there are two UI elements hiding below the navigation bar. (I've enabled wireframes in IB to illustrate this) These elements, a UIButton and a UISegmentedControl both have their "y" origin set to zero, and the view controller is set to allow content below the top bar. This second screenshot shows what happens when you deselect the "Under Top Bars" check box. As you can see, the view controllers view has been shifted down appropriately for its y origin to be right underneath the navigation bar. This can also be accomplished programmatically through the usage of
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I created my view programmatically and this ended up working for me:
Source (in topLayoutGuide section at bottom of pg.39). |
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If you want the view to have the translucent nav bar (which is kind of nice) you have to setup a contentInset or similar. Here is how I do it:
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In your apps plist file add a row, call it "View controller-based status bar appearance" and set it to NO. |
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The simplest trick is to open the NIB file and do these two simple steps:
And the result:
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I would like to expand on Stunner's answer, and add an The addition would be adding:
So I would suggest adding this method to your
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I have a scenario where I use the BannerViewController written by Apple to display my ads and a ScrollViewController embedded in the BannerViewController. To prevent the navigation bar from hiding my content, I had to make two changes. 1) Modify BannerViewController.m
2) Modify my ScrollViewContoller
Now the ads show up correctly at the bottom of the view instead of being covered by the Navigation bar and the content on the top is not cut off. |
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To me, the simplest solution is to add two keys into the plist |
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Add the key "View Controller-based status bar appearance" from the dropdownlist as a row in |
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Steps For Hide the status bar in iOS 7: 1.Go to your application info.plist file. 2.And Set, View controller-based status bar appearance : Boolean NO Hope i solved the status bar issue..... |