ios VFL簡単な例ParseSWTable Viewセル上下ボタンの余白を修正したい

今日はParseSWTable Viewセルを使って上下ボタンの余白を修正しようと思います

 if (!precedingView)
            {
                // First button; pin it to the left edge.
                [self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[button]"
                                                                             options:0L
                                                                             metrics:nil
                                                                               views:NSDictionaryOfVariableBindings(button)]];
                //           
                [self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|-5-[button]-5-|"
                                                                             options:0L
                                                                             metrics:nil
                                                                               views:NSDictionaryOfVariableBindings(button)]];
            }
            else
            {
                // Subsequent button; pin it to the right edge of the preceding one, with equal width.
                [self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[precedingView][button(==precedingView)]"
                                                                             options:NSLayoutFormatAlignAllTop
                                                                             metrics:nil
                                                                               views:NSDictionaryOfVariableBindings(precedingView, button)]];
                //            
                [self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:[precedingView][button(==precedingView)]"
                                                                             options:NSLayoutFormatAlignAllBottom
                                                                             metrics:nil
                                                                               views:NSDictionaryOfVariableBindings(precedingView, button)]];

黒馬VFLコードを参考に

//
//  ViewController.m
//  06-VFL    
//
//  Created by apple on 14/11/4.
//  Copyright (c) 2014  heima. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // 1.           
    // 1.1    View
    UIView *blueView = [[UIView alloc] init];
    blueView.backgroundColor = [UIColor blueColor];
    [self.view addSubview:blueView];
    
    // 1.1    View
    UIView *redView = [[UIView alloc] init];
    redView.backgroundColor = [UIColor redColor];
    [self.view addSubview:redView];
    
    
    // 2.  auturezing
    blueView.translatesAutoresizingMaskIntoConstraints = NO;
    redView.translatesAutoresizingMaskIntoConstraints = NO;
    
    // 3.    
    /*
     lFormat : VFL  
     options:     
     metrics: VFL         
     views: VFL        
     */
    //     View        20      X     
//    NSArray *blueViewH = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|-20-[blueView]-20-|" options:0 metrics:nil views:@{@"blueView" : blueView}];
    int margin = 20;
    NSArray *blueViewH = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|-margin-[blueView]-margin-|" options:0 metrics:@{@"margin": @(margin)} views:@{@"blueView" : blueView}];
    [self.view addConstraints:blueViewH];
    
    //     View     20   ,       50   Y    
    //     View       20   ,     View       View    Y    
    //             
    NSArray *blueViewV = [NSLayoutConstraint constraintsWithVisualFormat:@"V:|-20-[blueView(50)]-20-[redView(==blueView)]" options:NSLayoutFormatAlignAllRight metrics:nil views:@{@"blueView" : blueView, @"redView": redView}];
    [self.view addConstraints:blueViewV];
    
    //   :  VFL   ,        
//    NSArray *redVeiwH = [NSLayoutConstraint constraintsWithVisualFormat:@"H:[redView(==blueView )]" options:0 metrics:nil views:@{@"blueView" : blueView, @"redView": redView}];
//    [self.view addConstraints:redVeiwH];
    
    NSLayoutConstraint *redVeiwW = [NSLayoutConstraint constraintWithItem:redView attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:blueView attribute:NSLayoutAttributeWidth multiplier:0.5 constant:0];
    [self.view addConstraint:redVeiwW];
}


@end