[iOS基础控件 - 6.6.1] 展示团购数据代码

1.主控制器：

  1 //
  2 //  ViewController.m
  3 //  GroupPurchase
  4 //
  5 //  Created by hellovoidworld on 14/12/3.
  6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
  7 //
  8
  9 #import "ViewController.h"
 10 #import "GroupPurchase.h"
 11 #import "GroupPurchaseCell.h"
 12 #import "FooterRefreshView.h"
 13 #import "HeaderAdView.h"
 14
 15
 16 @interface ViewController () <FooterRefreshViewDelegate>
 17
 18 @property(nonatomic, strong) NSArray *groupPurchases;
 19
 20 @end
 21
 22 @implementation ViewController
 23
 24 - (void)viewDidLoad {
 25     [super viewDidLoad];
 26     // Do any additional setup after loading the view, typically from a nib.
 27
 28     // 创建尾部控件
 29     FooterRefreshView *footerView = [FooterRefreshView footerRrefreshViewWithDelegate:self];
 30
 31     // 设置尾部控件
 32     self.tableView.tableFooterView = footerView;
 33
 34
 35     //设置头部广告
 36     HeaderAdView *adView = [self genAdView]; // 手动拼装广告图片数据
 37     self.tableView.tableHeaderView = adView;
 38 }
 39
 40 - (void)didReceiveMemoryWarning {
 41     [super didReceiveMemoryWarning];
 42     // Dispose of any resources that can be recreated.
 43 }
 44
 45 #pragma mark - 状态栏
 46 - (BOOL)prefersStatusBarHidden {
 47     return YES;
 48 }
 49
 50
 51 #pragma mark - 数据方法
 52 /** 延迟数据加载到model */
 53 - (NSArray *) groupPurchases {
 54     if (nil == _groupPurchases) {
 55         NSArray *dictArray = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"tgs.plist" ofType:nil]];
 56
 57         NSMutableArray *mdictArray = [NSMutableArray array];
 58         for (NSDictionary *dict in dictArray) {
 59             GroupPurchase *groupPurchase = [GroupPurchase groupPurchaseWithDictionary:dict];
 60             [mdictArray addObject:groupPurchase];
 61         }
 62
 63         _groupPurchases = mdictArray;
 64     }
 65
 66     return _groupPurchases;
 67 }
 68
 69 /** section数 */
 70 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
 71     return 1;
 72 }
 73
 74 /** 行数 */
 75 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
 76     return self.groupPurchases.count;
 77 }
 78
 79 /** 内容 */
 80 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
 81
 82     // 1.创建cell
 83     GroupPurchaseCell *cell = [GroupPurchaseCell groupPurchaseCellWithTableView:self.tableView];
 84
 85     // 2.给cell传递model数据
 86     cell.groupPurchase = self.groupPurchases[indexPath.row];
 87
 88     return cell;
 89 }
 90
 91 /** 行高 */
 92 - (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath {
 93     return 80;
 94 }
 95
 96 /** 实现FooterRefreshViewDelegate协议 */
 97 - (void)footerRefreshViewClickedFooterRefreshButton:(FooterRefreshView *)footerRefreshView {
 98     //增加团购记录
 99     GroupPurchase *groupPurchase = [GroupPurchase groupPurchase];
100     groupPurchase.icon = @"M2Mini.jpg";
101     groupPurchase.title = @"增加用例";
102     groupPurchase.price = @"88";
103     groupPurchase.buyCount = @"32";
104
105     // 加入新数据
106     NSMutableArray *marray = [NSMutableArray arrayWithArray:self.groupPurchases];
107     [marray addObject:groupPurchase];
108     self.groupPurchases = marray;
109
110     // 刷新数据
111     [self.tableView reloadData];
112 }
113
114 // 配置一些头部广告的数据
115 - (HeaderAdView *) genAdView {
116     HeaderAdView *adView = [HeaderAdView headerAdView];
117
118     NSMutableArray *adImages = [NSMutableArray array];
119     for (int i=0; i<5; i++) {
120         [adImages addObject:[NSString stringWithFormat:@"ad_%02d", i]];
121     }
122
123     adView.ads = adImages;
124
125     return adView;
126 }
127
128 @end

2.自定义cell

 1 //
 2 //  GroupPurchaseCell.m
 3 //  GroupPurchase
 4 //
 5 //  Created by hellovoidworld on 14/12/3.
 6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "GroupPurchaseCell.h"
10 #import "GroupPurchase.h"
11
12 @implementation GroupPurchaseCell
13
14 // 界面被初始化的时候调用 awakeFromNib
15 - (void)awakeFromNib {
16     // Initialization code
17 }
18
19 - (void)setSelected:(BOOL)selected animated:(BOOL)animated {
20     [super setSelected:selected animated:animated];
21
22     // Configure the view for the selected state
23 }
24
25 /** 自定初始化的类方法，传入model数据 */
26 + (instancetype) groupPurchaseCellWithTableView:(UITableView *) tableView {
27
28     static NSString *ID = @"groupPurchase";
29
30     // 从缓存池寻找
31     GroupPurchaseCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
32
33     // 若缓存池没有，则创建一个
34     if (nil == cell) {
35         cell = [[[NSBundle mainBundle] loadNibNamed:@"GroupPurchaseCell" owner:nil options:nil] lastObject];
36     }
37
38     return cell;
39 }
40
41 /** 加载Model数据，初始化界面 */
42 - (void) setGroupPurchase:(GroupPurchase *) groupPurchase {
43     if (nil != groupPurchase) {
44         self.titleLabel.text = groupPurchase.title;
45         self.iconImageView.image = [UIImage imageNamed:groupPurchase.icon];
46         self.priceLabel.text = [NSString stringWithFormat:@"￥%@", groupPurchase.price];
47         self.buyCountLabel.text = [NSString stringWithFormat:@"%@人已经购买", groupPurchase.buyCount];
48     }
49
50     _groupPurchase = groupPurchase;
51 }
52
53 @end
54  

3.底部加载按钮

 1 //
 2 //  FooterRefreshView.h
 3 //  GroupPurchase
 4 //
 5 //  Created by hellovoidworld on 14/12/3.
 6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import <UIKit/UIKit.h>
10
11 @class FooterRefreshView;
12
13 // 定义delegate协议
14 @protocol FooterRefreshViewDelegate <NSObject>
15
16 @optional
17 - (void) footerRefreshViewClickedFooterRefreshButton:(FooterRefreshView *) footerRefreshView;
18
19 @end
20
21 @interface FooterRefreshView : UIView
22
23 // 带代理的初始化方法
24 + (instancetype) footerRrefreshViewWithDelegate:(id<FooterRefreshViewDelegate>) delegate;
25
26 @end

 1 //
 2 //  FooterRefreshView.m
 3 //  GroupPurchase
 4 //
 5 //  Created by hellovoidworld on 14/12/3.
 6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "FooterRefreshView.h"
10
11 @interface FooterRefreshView()
12 /** 底部的“加载更多”按钮 */
13 @property (weak, nonatomic) IBOutlet UIButton *footerRefreshButton;
14
15 /** 加载动画图标 */
16 @property (weak, nonatomic) IBOutlet UIActivityIndicatorView *loadingImage;
17
18 /** 代理 */
19 @property(nonatomic, weak) id<FooterRefreshViewDelegate> delegate;
20
21 /** “加载更多”按钮点击事件 */
22 - (IBAction)onFooterRefreshButtonClicked;
23
24
25 @end
26
27 @implementation FooterRefreshView
28
29 #pragma mark - 初始化
30
31 /** 初始化方法 */
32 + (instancetype) footerRrefreshViewWithDelegate:(id<FooterRefreshViewDelegate>) delegate {
33     FooterRefreshView *footerRefreshView = [[[NSBundle mainBundle] loadNibNamed:@"FooterRefreshView" owner:nil options:nil] lastObject];
34
35     if (nil != delegate) {
36         footerRefreshView.delegate = delegate;
37     }
38
39     return footerRefreshView;
40 }
41
42 // xib控件的初始化调用方法
43 - (void)awakeFromNib {
44     self.loadingImage.hidden = YES;
45 }
46
47
48 #pragma mark - action
49 /** “加载更多”按钮点击事件 */
50 - (IBAction)onFooterRefreshButtonClicked {
51     NSString *footerButtonTitle = self.footerRefreshButton.currentTitle;
52
53     // 显示正在加载
54     self.loadingImage.hidden = NO;
55     [self.footerRefreshButton setTitle:@"拼命加载中..." forState:UIControlStateNormal];
56
57     // 暂时禁止按钮事件
58     self.footerRefreshButton.userInteractionEnabled = NO;
59
60     // 模拟延迟
61     dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
62         // 通知代理发生了点击事件
63         if ([self.delegate respondsToSelector:@selector(footerRefreshViewClickedFooterRefreshButton:)]) {
64             [self.delegate footerRefreshViewClickedFooterRefreshButton:self];
65         }
66
67         // 恢复按钮状态
68         self.footerRefreshButton.userInteractionEnabled = YES;
69         self.loadingImage.hidden = YES;
70         [self.footerRefreshButton setTitle:footerButtonTitle forState:UIControlStateNormal];
71     });
72
73 }
74
75 @end

4.头部广告

 1 //
 2 //  HeaderAdView.h
 3 //  GroupPurchase
 4 //
 5 //  Created by hellovoidworld on 14/12/3.
 6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import <UIKit/UIKit.h>
10
11 @interface HeaderAdView : UIView
12 // 广告组
13 @property(nonatomic, strong) NSArray *ads;
14
15 + (instancetype) headerAdView;
16
17 @end

  1 //
  2 //  HeaderAdView.m
  3 //  GroupPurchase
  4 //
  5 //  Created by hellovoidworld on 14/12/3.
  6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
  7 //
  8
  9 #import "HeaderAdView.h"
 10
 11 #define AD_VIEW_WIDTH 300
 12 #define AD_VIEW_HEIGHT 120
 13
 14 // 遵守UIScrollViewDelegate监控滚动事件
 15 @interface HeaderAdView() <UIScrollViewDelegate>
 16
 17 /** scrollView控件 */
 18 @property (weak, nonatomic) IBOutlet UIScrollView *scrollView;
 19
 20 /** 页码 */
 21 @property (weak, nonatomic) IBOutlet UIPageControl *pageControl;
 22
 23 /** 计时器 */
 24 @property(nonatomic, weak) NSTimer *timer;
 25
 26 @end
 27
 28 @implementation HeaderAdView
 29
 30 #pragma mark - 初始化方法
 31 // 初始化headerAdView
 32 + (instancetype) headerAdView {
 33     return [[[NSBundle mainBundle] loadNibNamed:@"HeaderAdView" owner:nil options:nil] lastObject];
 34 }
 35
 36 // 当控件从nib初始化
 37 - (void)awakeFromNib {
 38     self.scrollView.scrollEnabled = YES; // 开启滚动
 39     self.scrollView.pagingEnabled = YES; // 开启翻页模式
 40     self.scrollView.delegate = self;// 设置代理
 41 }
 42
 43 /** 设置ads */
 44 - (void) setAds:(NSArray *)ads {
 45     if (nil != ads) {
 46         CGFloat adImageWidth = AD_VIEW_WIDTH;
 47         CGFloat adImageHeight = AD_VIEW_HEIGHT;
 48         CGFloat adImageY = 0;
 49
 50         for (int i=0; i<ads.count; i++) {
 51             // 计算当前图片的水平坐标
 52             CGFloat adImageX = i * adImageWidth;
 53
 54             UIImageView *adImageView = [[UIImageView alloc] initWithFrame:CGRectMake(adImageX, adImageY, adImageWidth, adImageHeight)];
 55             adImageView.image = [UIImage imageNamed:[NSString stringWithFormat:@"%@", ads[i]]];
 56
 57             [self.scrollView addSubview:adImageView];
 58         }
 59
 60         // 设置滚动范围
 61         self.scrollView.contentSize = CGSizeMake(ads.count * AD_VIEW_WIDTH, 0);
 62
 63         self.pageControl.numberOfPages = ads.count; // 总页数
 64         self.pageControl.pageIndicatorTintColor = [UIColor blackColor]; // 其他页码颜色
 65         self.pageControl.currentPageIndicatorTintColor = [UIColor redColor]; // 当前页码颜色
 66
 67         // 添加自动轮播
 68         [self addTimer];
 69     }
 70
 71     _ads = ads;
 72 }
 73
 74 #pragma mark - 滚动事件
 75 // 滚动动作监控，当滚动超过图片的一半的时候转变页码
 76 - (void)scrollViewDidScroll:(UIScrollView *)scrollView {
 77     CGFloat scrollViewWidth = self.scrollView.frame.size.width;
 78     int page = (self.scrollView.contentOffset.x + 0.5 * scrollViewWidth) / scrollViewWidth;
 79     self.pageControl.currentPage = page;
 80 }
 81
 82 // 手动拖动广告图片轮播的时候，暂时销毁自动轮播器
 83 - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
 84     [self.timer invalidate];
 85     self.timer = nil;
 86 }
 87
 88 // 手动拖动结束，从新加上自动轮播器
 89 - (void)scrollViewWillEndDragging:(UIScrollView *)scrollView withVelocity:(CGPoint)velocity targetContentOffset:(inout CGPoint *)targetContentOffset {
 90     [self addTimer];
 91 }
 92
 93 // 添加计时器
 94 - (void) addTimer {
 95     self.timer = [NSTimer scheduledTimerWithTimeInterval:2.0 target:self selector:@selector(nextImage) userInfo:nil repeats:YES];
 96
 97     // 计时器分享主线程资源
 98     [[NSRunLoop currentRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];
 99 }
100
101 // 下一张图片动作
102 - (void) nextImage {
103     int page = 0;
104     // 如果是当前页码在最后一页，从新回到第一页
105     if (self.pageControl.currentPage == self.ads.count - 1) {
106         page = 0;
107     }
108     else {
109         page = self.pageControl.currentPage + 1;
110     }
111
112     // 滚动图片，带动画效果
113     [self.scrollView setContentOffset:CGPointMake(page * AD_VIEW_WIDTH, 0) animated:YES];
114 }
115 @end

5.model

 1 //
 2 //  GroupPurchase.h
 3 //  GroupPurchase
 4 //
 5 //  Created by hellovoidworld on 14/12/3.
 6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import <Foundation/Foundation.h>
10
11 @interface GroupPurchase : NSObject
12
13 /** 图片 */
14 @property(nonatomic, copy) NSString *icon;
15
16 /** 标题 */
17 @property(nonatomic, copy) NSString *title;
18
19 /** 已经购买人数 */
20 @property(nonatomic, copy) NSString *buyCount;
21
22 /** 价格 */
23 @property(nonatomic, copy) NSString *price;
24
25 //初始化方法
26 - (instancetype) initWithDictionary:(NSDictionary *) dictionary;
27 + (instancetype) groupPurchaseWithDictionary:(NSDictionary *) dictionary;
28 + (instancetype) groupPurchase;
29
30 @end

 1 //
 2 //  GroupPurchase.m
 3 //  GroupPurchase
 4 //
 5 //  Created by hellovoidworld on 14/12/3.
 6 //  Copyright (c) 2014年 hellovoidworld. All rights reserved.
 7 //
 8
 9 #import "GroupPurchase.h"
10
11 @implementation GroupPurchase
12
13 //初始化方法
14 - (instancetype) initWithDictionary:(NSDictionary *) dictionary
15 {
16     if (self = [super init]) {
17         // 使用KVC
18         [self setValuesForKeysWithDictionary:dictionary];
19     }
20
21     return self;
22 }
23
24 + (instancetype) groupPurchaseWithDictionary:(NSDictionary *) dictionary {
25     return [[self alloc] initWithDictionary:dictionary];
26 }
27
28 + (instancetype) groupPurchase {
29     return [self groupPurchaseWithDictionary:nil];
30 }
31
32 @end

6.plist文件结构