ViewController

#import <UIKit/UIKit.h>

@interface ViewController : UIViewController<UITableViewDataSource, UITableViewDelegate>

@property (weak, nonatomic) UITableView *tableView;
@property (weak, nonatomic) UIButton *actionButton;

@end



//
//  ViewController.m
//  Teste
//
//  Created by teste teste on 27/01/17.
//  Copyright © 2017 shipnow. All rights reserved.
//

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

-(void)loadView {
    [super loadView];

    UITableView *table = [[UITableView alloc] init];
    [self.view addSubview:table];
    self.tableView = table;

    UIButton *actionButton = [[UIButton alloc] init];
    actionButton.backgroundColor=[UIColor blueColor];
    [actionButton setTitle:@"Test" forState:UIControlStateNormal];
    [self.view addSubview:actionButton];
    self.actionButton = actionButton;
}

-(void)viewDidLoad {
    [super viewDidLoad];

    [self setupTableViewDataSource];
    [self setupConstraints];
}

-(void)setupTableViewDataSource{
    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:@"normalCell"];

    _tableView.dataSource = self;
    _tableView.delegate = self;
}

-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"normalCell"];

    cell.textLabel.text=[NSString stringWithFormat:@"Test %d", indexPath.row];

    return cell;
}

-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return 40;
}

-(void)setupConstraints {
    [_tableView setTranslatesAutoresizingMaskIntoConstraints:NO];
    [_actionButton setTranslatesAutoresizingMaskIntoConstraints:NO];

    NSDictionary *metrics = @{@"buttonHeight":@30};
    NSDictionary *views = NSDictionaryOfVariableBindings(_tableView, _actionButton);

    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_tableView]|" options:0 metrics:nil views:views]];

    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[_actionButton]|" options:0 metrics:nil views:views]];

    [self.view addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[_tableView][_actionButton(==buttonHeight)]|" options:0 metrics:metrics views:views]];
}


@end