UIScrollView with AutoLayout by PureLayout

UIScrollViewAutoLayoutDemo.m

//
//  ZZZViewController.m
//  KevinDemo
//
//  Created by Kevin on 15/12/22.
//  Copyright © 2015年 KevinLab. All rights reserved.
//

#import "ZZZViewController.h"

@interface ZZZViewController ()

@property (strong, nonatomic) UIScrollView *scrollView;
@property (strong, nonatomic) UIView *view1;
@property (strong, nonatomic) UIView *view2;

@end

@implementation ZZZViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    self.view.backgroundColor = [UIColor whiteColor];
    
    [self.view addSubview:self.scrollView];
    [self.scrollView addSubview:self.view1];
    [self.scrollView addSubview:self.view2];
    
    [self configureConstraints];
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Getters

- (UIScrollView *)scrollView
{
    if (!_scrollView) {
        _scrollView = [[UIScrollView alloc] init];
        _scrollView.backgroundColor = [UIColor lightGrayColor];
        _scrollView.scrollEnabled = YES;
        _scrollView.showsVerticalScrollIndicator = YES;
    }
    return _scrollView;
}

- (UIView *)view1
{
    if (!_view1) {
        _view1 = [[UIView alloc] init];
        _view1.backgroundColor = [UIColor colorWithHex:0x0a88e3];
    }
    return _view1;
}

- (UIView *)view2
{
    if (!_view2) {
        _view2 = [[UIView alloc] init];
        _view2.backgroundColor = [UIColor colorWithHex:0xCD7320];
    }
    return _view2;
}

- (void)configureConstraints
{
    [self.scrollView autoPinEdgeToSuperviewEdge:ALEdgeTop];
    [self.scrollView autoPinEdgeToSuperviewEdge:ALEdgeBottom];
    [self.scrollView autoPinEdgeToSuperviewEdge:ALEdgeLeft];
    [self.scrollView autoPinEdgeToSuperviewEdge:ALEdgeRight];
    
    [self.view1 autoPinEdgeToSuperviewEdge:ALEdgeTop];
    [self.view1 autoPinEdgeToSuperviewEdge:ALEdgeLeft];
    [self.view1 autoPinEdgeToSuperviewEdge:ALEdgeRight];
    // 确定 contentSize 重要的约束
    [self.view1 autoMatchDimension:ALDimensionWidth toDimension:ALDimensionWidth ofView:self.scrollView];
    [self.view1 autoSetDimension:ALDimensionHeight toSize:400];
    
    [self.view2 autoPinEdge:ALEdgeTop toEdge:ALEdgeBottom ofView:self.view1];
    [self.view2 autoPinEdgeToSuperviewEdge:ALEdgeLeft];
    [self.view2 autoPinEdgeToSuperviewEdge:ALEdgeRight];
    // 确定 contentSize 重要的约束
    [self.view2 autoMatchDimension:ALDimensionWidth toDimension:ALDimensionWidth ofView:self.scrollView];
    [self.view2 autoSetDimension:ALDimensionHeight toSize:800];
    // 确定 contentSize 重要的约束
    [self.view2 autoPinEdgeToSuperviewEdge:ALEdgeBottom];
}

@end