Demonstrating Table Issue with STPopup

PopupViewController1.h

//
//  PopupViewController1.h
//  STPopup
//
//  Created by Kevin Lin on 11/9/15.
//  Copyright (c) 2015 Sth4Me. All rights reserved.
//

#import <UIKit/UIKit.h>

@interface PopupViewController1 : UITableViewController

@end

PopupViewController1.m

//
//  PopupViewController1.m
//  STPopup
//
//  Created by Kevin Lin on 11/9/15.
//  Copyright (c) 2015 Sth4Me. All rights reserved.
//

#import "PopupViewController1.h"
#import "PopupViewController2.h"
#import "STPopup.h"

@implementation PopupViewController1

- (instancetype)init
{
    if (self = [super init]) {
        self.title = @"TableView";
        self.contentSizeInPopup = CGSizeMake(300, 400);
        self.landscapeContentSizeInPopup = CGSizeMake(400, 200);
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    [self.tableView registerClass:UITableViewCell.class forCellReuseIdentifier:@"Identifier"];
    
    self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"Next" style:UIBarButtonItemStylePlain target:self action:@selector(nextBtnDidTap)];
}

- (void)nextBtnDidTap
{
    [self.popupController pushViewController:[PopupViewController2 new] animated:YES];
}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return 20;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Identifier"];
    
    cell.textLabel.text = [NSString stringWithFormat:@"%ld", (long)indexPath.row];
    
    return cell;
}

@end