UIView实现红黑棋盘

//  Created by 妖精的尾巴 on 15-8-15.

//  Copyright (c) 2015年 妖精的尾巴. All rights reserved.

//

#import "ViewController.h"

#define kHeight 20

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad

{

    [super viewDidLoad];

    UIView* view=[[UIView alloc]initWithFrame:CGRectMake(0, kHeight, 320, 320)];

    view.backgroundColor=[UIColor redColor];

    [self.view addSubview:view];

    for (int col=0; col<320; col+=40) {

        for (int row=0; row<320; row+=40)

        {

            UIView* redView=[[UIView alloc]initWithFrame:CGRectMake(row, col, kHeight, kHeight)];

            redView.backgroundColor=[UIColor blackColor];

            [view addSubview:redView];

        }

        for (int row=20; row<320; row+=40)

        {

            UIView* redView=[[UIView alloc]initWithFrame:CGRectMake(row, col+kHeight, kHeight, kHeight)];

            redView.backgroundColor=[UIColor blackColor];

            [view addSubview:redView];

        }

    }

}

UIView实现红黑棋盘

原文：http://my.oschina.net/iOSliuhui/blog/492993