Use iOS 6 Style Segmented Control in iOS 7?

问题:

Is it possible to have a segmented control on an iOS 7 device show up as the iOS 6 version of the control?

We really aren't ready for an interface redesign and the new flat control doesn't jive with the rest of our UI. It would definitely be best to keep the iOS 6 style for now, if possible.

To clarify, I am compiling using the iOS 6.1 Base SDK. I am aware that this is the "obvious" answer to my question, but it does not work. Most other UI elements will show up with iOS 6 styling by doing this, but like the UIAlertView and UIActionSheet, the UISegmentedControl does not. However, unlike the UIAlertView and UIActionSheet, UISegmentedControls do not feel like a "system" item; they should be able to display in iOS 6 mode.

Edit: I thought it would be helpful if I finally included a picture with this (probably should have done this from the start). However, the answer I provided did fix the issue. Also, in retrospect, it looks like this might be the iOS 6 style after all, it's just displaying so wrong that it appears like iOS 7 style.

回答1:

I manage to do a pretty good job of solving this problem by setting all the attributes manually, but it is not quite perfect.

This is what I ended up doing:

- (void)fixSegmentedControlForiOS7
{
    NSInteger deviceVersion = [[UIDevice currentDevice] systemVersion].integerValue;
    if(deviceVersion < 7) // If this is not an iOS 7 device, we do not need to perform these customizations.
        return;

    NSDictionary *attributes = [NSDictionary dictionaryWithObjectsAndKeys:
                                [UIFont boldSystemFontOfSize:12], UITextAttributeFont,
                                [UIColor whiteColor], UITextAttributeTextColor,
                                nil];
    [self.segmentedControl setTitleTextAttributes:attributes forState:UIControlStateNormal];
    NSDictionary *highlightedAttributes = [NSDictionary dictionaryWithObject:[UIColor whiteColor] forKey:UITextAttributeTextColor];
    [self.segmentedControl setTitleTextAttributes:highlightedAttributes forState:UIControlStateHighlighted];

    self.segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
    self.segmentedControl.tintColor = [UIColor colorWithRed:49.0 / 256.0 green:148.0 / 256.0 blue:208.0 / 256.0 alpha:1];
}

回答2:

To fix images assigned with InterfaceBuilder use this code:

- (void)fixImagesOfSegmentedControlForiOS7
{
    NSInteger deviceVersion = [[UIDevice currentDevice] systemVersion].integerValue;
    if(deviceVersion < 7) // If this is not an iOS 7 device, we do not need to perform these customizations.
        return;

    for(int i=0;i<toSegmentedControl.numberOfSegments;i++)
    {
        UIImage* img = [toSegmentedControl imageForSegmentAtIndex:i];
        UIImage* goodImg = [img imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
        // clone image with different rendering mode
        [toSegmentedControl setImage:goodImg forSegmentAtIndex:i];
    }
}

回答3:

I just ran into this problem today myself. The app I'm working on updating is quite old, and still uses xib files, so I do not know if this works on storyboards or not. As others suggested above, you still need to use the iOS 6.1 SDK, but this alone is not enough. After performing the following steps, I was able to get the old UISegmentedControl appearance back:

1. Open the interface builder document in question
2. Go to the file inspector (first inspector tab; has a document icon)
3. Under the "Interface Builder Document" section, change "Opens in" to Xcode 4.6

I do believe this is a bug, and I would not be surprised if there isn't a workaround for UISegmentedControl instances created in code. I'm guessing this is somewhat related to the deprecation of the segmentedControlStyle property in iOS 7 (see https://developer.apple.com/library/ios/documentation/uikit/reference/UISegmentedControl_Class/DeprecationAppendix/AppendixADeprecatedAPI.html#//apple_ref/occ/instp/UISegmentedControl/segmentedControlStyle).

Hope this helps someone out there.

回答4:

If you save the iPhoneOS6.1.sdk file from the previous version of XCode and add it to Xcode 5 in the same path you can then build an app against the 6.1 SDK so that when it runs on 7 everything is like 6. Linking against iOS7 SDK tells iOS to make everything look like iOS7 if possible. Essentially then you have an iOS6 app but building it with XCode 5.

回答5:

If you use images on any of your UISegmentedControl segments, you'll need to add some code to set those properly on iOS 7, otherwise they'll be used as a template image and the selected segment will be a cutout of the segment's background.

UISegmentedControl under iOS 7 interprets its images as being in rendering mode UIImageRenderingModeAlwaysTemplate unless otherwise specified. I had to use -[UIImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] on each segment's image for iOS 7 to achieve the previous behavior.

回答6:

Either you could:

• Not update your app at all for iOS7 until you're ready to make some UI changes. Apps compiled against the iOS6 SDK will run in iOS6 Compatibility mode on iOS7 and will look exactly the same as they did in iOS6.
• Apply custom background, separator, etc images to your segmented controls that mimic the look they had in iOS6.

回答7:

Is it possible? Not really...

You could make your own custom segmented control.

Or you could use the UIAppearance proxy to customise your segmented control with images but then it's your responsibility to make it look like it was on iOS 6.

回答8:

Yes, it is possible if you recreate the control by your own. Create a fake segmented control that looks like and work like one.

回答9:

In my app, I have set the Segmented control to "Bar" style. It renders in ios6 style on my ios7 iphone5 (whoa, 5,6,7). However, the text inside the segments are cut and have the three dots "..." added, no matter how wide the view is. So the ios6 segmented control rendering in ios7 seems really buggy