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  • iOS-图片浏览器

    //

    //  ViewController.m

    //  19-图片浏览器

    //

    //  Created by hongqiangli on 2017/7/31.

    //  Copyright © 2017 李洪强. All rights reserved.

    //

     

    #import "ViewController.h"

     

    @interface ViewController ()

     

    /**

     记录当前的索引号

     */

    @property(nonatomic,assign)int index;

     

    /**

     上一张

     */

    - (IBAction)previous;

     

    /**

     下一张

     */

    - (IBAction)next;

     

    /**

     描述

     */

    @property (weak, nonatomic) IBOutlet UILabel *descLabel;

     

    /**

     上一个按钮

     */

    @property (weak, nonatomic) IBOutlet UIButton *previousBtn;

     

    /**

     下一个按钮

     */

    @property (weak, nonatomic) IBOutlet UIButton *nextBtn;

     

    /**

     索引label

     */

    @property (weak, nonatomic) IBOutlet UILabel *noLabel;

     

    @property (weak, nonatomic) IBOutlet UIImageView *mainImageView;

     

    @end

     

    @implementation ViewController

     

    - (void)viewDidLoad {

        [super viewDidLoad];

        

        

    }

     

     

     

     

    /**

     点击上一张

     */

    - (IBAction)previous {

        _index--;

        switch (_index) {

            case 0:

                _noLabel.text = @"1/5";

                _mainImageView.image = [UIImage imageNamed:@"biaoqingdi"];

                _descLabel.text = @"在他前面,其他什么表情都弱爆了!";

                break;

            case 1:

                _noLabel.text = @"2/5";

                _mainImageView.image = [UIImage imageNamed:@"wangba"];

                _descLabel.text = @"哥们为什么选择八号呢";

                break;

            case 2:

                _noLabel.text = @"3/5";

                _mainImageView.image = [UIImage imageNamed:@"bingli"];

                _descLabel.text = @"这也忒狠了";

                break;

            case 3:

                _noLabel.text = @"4/5";

                _mainImageView.image = [UIImage imageNamed:@"chiniupa"];

                _descLabel.text = @"这个小姑娘吃个牛排比杀牛还费劲呢";

                break;

            case 4:

                _noLabel.text = @"5/5";

                _mainImageView.image = [UIImage imageNamed:@"danteng"];

                _descLabel.text = @"亲,你能改下你的网名么?哈哈";

                break;

                

            default:

                break;

        }

        

        //判断按钮能不能点击

        _previousBtn.enabled = (_index != 0);

        _nextBtn.enabled = (_index != 4);

        

        

        

    }

     

    /**

     下一张

     */

    - (IBAction)next {

        _index++;

        switch (_index) {

            case 0:

                _noLabel.text = @"1/5";

                _mainImageView.image = [UIImage imageNamed:@"biaoqingdi"];

                _descLabel.text = @"在他前面,其他什么表情都弱爆了!";

                break;

            case 1:

                _noLabel.text = @"2/5";

                _mainImageView.image = [UIImage imageNamed:@"wangba"];

                _descLabel.text = @"哥们为什么选择八号呢";

                break;

            case 2:

                _noLabel.text = @"3/5";

                _mainImageView.image = [UIImage imageNamed:@"bingli"];

                _descLabel.text = @"这也忒狠了";

                break;

            case 3:

                _noLabel.text = @"4/5";

                _mainImageView.image = [UIImage imageNamed:@"chiniupa"];

                _descLabel.text = @"这个小姑娘吃个牛排比杀牛还费劲呢";

                break;

            case 4:

                _noLabel.text = @"5/5";

                _mainImageView.image = [UIImage imageNamed:@"danteng"];

                _descLabel.text = @"亲,你能改下你的网名么?哈哈";

                break;

                

            default:

                break;

        }

        

        //判断按钮能不能点击

        _previousBtn.enabled = (_index != 0);

        _nextBtn.enabled = (_index != 4);

     

        

    }

    @end

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  • 原文地址:https://www.cnblogs.com/LiLihongqiang/p/7267695.html
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