对于标签，这至少是可行的:

@“H: | -15 -(第一(第二)= =]-[二(= =第三)](第三(= =))-15 - |

如果第一个和第二个有相同的宽度，第二个和第三个有相同的宽度，第三个和第一个有相同的宽度……你可以做水平(H)和垂直(V)。

我做了一个函数可能会有帮助。 用法示例:

 [self.view addConstraints: [NSLayoutConstraint fluidConstraintWithItems:NSDictionaryOfVariableBindings(button1, button2, button3)
                                                                asString:@[@"button1", @"button2", @"button3"]
                                                               alignAxis:@"V"
                                                          verticalMargin:100
                                                        horizontalMargin:50
                                                             innerMargin:25]];

会导致垂直分布(不好意思没有10个声望来嵌入图像)。如果你改变坐标轴和一些边距值

alignAxis:@"H"
verticalMargin:120
horizontalMargin:20
innerMargin:10

你会得到水平分布。

我是iOS的新手，但是voilà !

EvenDistribution.h

@interface NSLayoutConstraint (EvenDistribution)

/**
 * Returns constraints that will cause a set of subviews
 * to be evenly distributed along an axis.
 */
+ (NSArray *)  fluidConstraintWithItems:(NSDictionary *) views
                               asString:(NSArray *) stringViews
                              alignAxis:(NSString *) axis
                         verticalMargin:(NSUInteger) vMargin
                       horizontalMargin:(NSUInteger) hMargin
                            innerMargin:(NSUInteger) inner;
@end

EvenDistribution.m

#import "EvenDistribution.h"

@implementation NSLayoutConstraint (EvenDistribution)

+ (NSArray *) fluidConstraintWithItems:(NSDictionary *) dictViews
                              asString:(NSArray *) stringViews
                             alignAxis:(NSString *) axis
                        verticalMargin:(NSUInteger) vMargin
                      horizontalMargin:(NSUInteger) hMargin
                           innerMargin:(NSUInteger) iMargin

{
    NSMutableArray *constraints = [NSMutableArray arrayWithCapacity: dictViews.count];
    NSMutableString *globalFormat = [NSMutableString stringWithFormat:@"%@:|-%d-",
                                     axis,
                                     [axis isEqualToString:@"V"] ? vMargin : hMargin
                                     ];



        for (NSUInteger i = 0; i < dictViews.count; i++) {

            if (i == 0)
                [globalFormat appendString:[NSString stringWithFormat: @"[%@]-%d-", stringViews[i], iMargin]];
            else if(i == dictViews.count - 1)
                [globalFormat appendString:[NSString stringWithFormat: @"[%@(==%@)]-", stringViews[i], stringViews[i-1]]];
            else
               [globalFormat appendString:[NSString stringWithFormat: @"[%@(==%@)]-%d-", stringViews[i], stringViews[i-1], iMargin]];

            NSString *localFormat = [NSString stringWithFormat: @"%@:|-%d-[%@]-%d-|",
                                     [axis isEqualToString:@"V"] ? @"H" : @"V",
                                     [axis isEqualToString:@"V"] ? hMargin : vMargin,
                                     stringViews[i],
                                     [axis isEqualToString:@"V"] ? hMargin : vMargin];

            [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:localFormat
                                                                                     options:0
                                                                                     metrics:nil
                                                                                       views:dictViews]];


    }
    [globalFormat appendString:[NSString stringWithFormat:@"%d-|",
                                [axis isEqualToString:@"V"] ? vMargin : hMargin
                                ]];

    [constraints addObjectsFromArray:[NSLayoutConstraint constraintsWithVisualFormat:globalFormat
                                                                             options:0
                                                                             metrics:nil
                                                                               views:dictViews]];

    return constraints;

}

@end

你可以创建一个tableView并使isScrollEnabled = false。

在iOS 9中，苹果通过(期待已久的)UIStackView使这变得非常容易。只需选择要包含在接口构建器中的视图，并选择编辑器->嵌入->堆栈视图。为堆栈视图设置适当的宽度/高度/边距约束，并确保将Distribution属性设置为'Equal spacing':

当然，如果你需要支持iOS 8或更低版本，你必须从其他选项中选择一个。

Here is a solution that will vertically center any number of subviews, even if they have unique sizes. What you want to do is make a mid-level container, center that in the superview, then put all the subviews in the container and arrange them with respect to one another. But crucially you also need to constrain them to the top and bottom of the container, so the container can be correctly sized and centered in the superview. By figuring the correct height from its subviews, the container can be vertically centered.

在本例中，self是位于所有子视图居中的父视图。

NSArray *subviews = @[ (your subviews in top-to-bottom order) ];

UIView *container = [[UIView alloc] initWithFrame:CGRectZero];
container.translatesAutoresizingMaskIntoConstraints = NO;
for (UIView *subview in subviews) {
    subview.translatesAutoresizingMaskIntoConstraints = NO;
    [container addSubview:subview];
}
[self addSubview:container];

[self addConstraint:[NSLayoutConstraint constraintWithItem:container attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual
                                                    toItem:self attribute:NSLayoutAttributeLeft multiplier:1.0f constant:0.0f]];
[self addConstraint:[NSLayoutConstraint constraintWithItem:container attribute:NSLayoutAttributeRight relatedBy:NSLayoutRelationEqual
                                                    toItem:self attribute:NSLayoutAttributeRight multiplier:1.0f constant:0.0f]];
[self addConstraint:[NSLayoutConstraint constraintWithItem:container attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual
                                                    toItem:self attribute:NSLayoutAttributeCenterY multiplier:1.0f constant:0.0f]];

if (0 < subviews.count) {
    UIView *firstSubview = subviews[0];
    [container addConstraint:[NSLayoutConstraint constraintWithItem:firstSubview attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual
                                                             toItem:container attribute:NSLayoutAttributeTop multiplier:1.0f constant:0.0f]];
    UIView *lastSubview = subviews.lastObject;
    [container addConstraint:[NSLayoutConstraint constraintWithItem:lastSubview attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual
                                                             toItem:container attribute:NSLayoutAttributeBottom multiplier:1.0f constant:0.0f]];

    UIView *subviewAbove = nil;
    for (UIView *subview in subviews) {
        [container addConstraint:[NSLayoutConstraint constraintWithItem:subview attribute:NSLayoutAttributeCenterX relatedBy:NSLayoutRelationEqual
                                                                 toItem:container attribute:NSLayoutAttributeCenterX multiplier:1.0f constant:0.0f]];
        if (subviewAbove) {
            [container addConstraint:[NSLayoutConstraint constraintWithItem:subview attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual
                                                                     toItem:subviewAbove attribute:NSLayoutAttributeBottom multiplier:1.0f constant:10.0f]];
        }
        subviewAbove = subview;
    }
}

迟到的派对，但我有一个工作的解决方案，创建一个菜单水平间距。在NSLayoutConstraint中使用==可以很容易地做到这一点

const float MENU_HEIGHT = 40;

- (UIView*) createMenuWithLabels: (NSArray *) labels
    // labels is NSArray of NSString
    UIView * backgroundView = [[UIView alloc]init];
    backgroundView.translatesAutoresizingMaskIntoConstraints = false;

    NSMutableDictionary * views = [[NSMutableDictionary alloc] init];
    NSMutableString * format = [[NSMutableString alloc] initWithString: @"H:|"];
    NSString * firstLabelKey;

    for(NSString * str in labels)
    {
        UILabel * label = [[UILabel alloc] init];
        label.translatesAutoresizingMaskIntoConstraints = false;
        label.text = str;
        label.textAlignment = NSTextAlignmentCenter;
        label.textColor = [UIColor whiteColor];
        [backgroundView addSubview: label];
        [label fixHeightToTopBounds: MENU_HEIGHT-2];
        [backgroundView addConstraints: [label fixHeightToTopBounds: MENU_HEIGHT]];
        NSString * key = [self camelCaseFromString: str];
        [views setObject: label forKey: key];
        if(firstLabelKey == nil)
        {
            [format appendString: [NSString stringWithFormat: @"[%@]", key]];
            firstLabelKey = key;
        }
        else
        {
            [format appendString: [NSString stringWithFormat: @"[%@(==%@)]", key, firstLabelKey]];
        }
    }

    [format appendString: @"|"];

    NSArray * constraints = [NSLayoutConstraint constraintsWithVisualFormat: (NSString *) format
                                                                               options: 0
                                                                               metrics: nil
                                                                                 views: (NSDictionary *) views];
    [backgroundView addConstraints: constraints];
    return backgroundView;
}