020606-09-头部尾部

 

//  XMGDealsViewController.h
//  06-自定义等高cell01-storyboard
#import <UIKit/UIKit.h>

@interface XMGDealsViewController : UITableViewController

@end

//  XMGDealsViewController.m
//  06-自定义等高cell01-storyboard
#import "XMGDealsViewController.h"
#import "XMGDeal.h"
#import "XMGDealCell.h"
#import "XMGPageView.h"
#import "XMGLoadMoreFooter.h"

@interface XMGDealsViewController ()
/** 所有的团购数据 */
@property (nonatomic, strong) NSMutableArray *deals;
@end

@implementation XMGDealsViewController

- (NSMutableArray *)deals
{
    if (_deals == nil) {
        // 加载plist中的字典数组
        NSString *path = [[NSBundle mainBundle] pathForResource:@"deals.plist" ofType:nil];
        NSArray *dictArray = [NSArray arrayWithContentsOfFile:path];
        
        // 字典数组 -> 模型数组
        NSMutableArray *dealArray = [NSMutableArray array];
        for (NSDictionary *dict in dictArray) {
            XMGDeal *deal = [XMGDeal dealWithDict:dict];
            [dealArray addObject:deal];
        }
        
        _deals = dealArray;
    }
    return _deals;
}


- (void)viewDidLoad {
    [super viewDidLoad];;
    
//    UIButton *logout = [UIButton buttonWithType:UIButtonTypeCustom];
//    [logout setTitle:@"退出登录" forState:UIControlStateNormal];
//    logout.frame = CGRectMake(0, 0, 100, 44);
//    logout.backgroundColor = [UIColor redColor];
//    [logout addTarget:self action:@selector(logout) forControlEvents:UIControlEventTouchUpInside];
    self.tableView.tableFooterView = [XMGLoadMoreFooter footer];
    
    XMGPageView *pageView = [XMGPageView pageView];
    pageView.imageNames = @[@"2c97690e72365e38e3e2a95b934b8dd2", @"2c97690e72365e38e3e2a95b934b8dd2", @"2c97690e72365e38e3e2a95b934b8dd2", @"2c97690e72365e38e3e2a95b934b8dd2"];
    self.tableView.tableHeaderView = pageView;
    
    // 监听加载更多的通知
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(loadMoreDeals) name:@"loadMore" object:nil];
}

- (void)dealloc
{
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

- (void)loadMoreDeals {
    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
        // 加载数据
        XMGDeal *deal = [[XMGDeal alloc] init];
        deal.icon = @"2c97690e72365e38e3e2a95b934b8dd2";
        deal.title = @"xxxx";
        deal.price = @"6546";
        deal.buyCount = @"90";
        [self.deals addObject:deal];
        
        // 刷新表格
        [self.tableView reloadData];
        
        // 结束footer的加载状态
        XMGLoadMoreFooter *footer = (XMGLoadMoreFooter *)self.tableView.tableFooterView;
        [footer endLoading];
    });
}

#pragma mark - Table view data source
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return self.deals.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    // 创建cell
    XMGDealCell *cell = [XMGDealCell cellWithTableView:tableView];
    
    // 取出模型数据
    cell.deal = self.deals[indexPath.row];
    
    return cell;
}

@end

 

//  XMGLoadMoreFooter.h
//  06-自定义等高cell01-storyboard
#import <UIKit/UIKit.h>

@interface XMGLoadMoreFooter : UIView
+ (instancetype)footer;

/**
 * 结束加载状态
 */
- (void)endLoading;
@end

//  XMGLoadMoreFooter.m
//  06-自定义等高cell01-storyboard
#import "XMGLoadMoreFooter.h"

@interface XMGLoadMoreFooter()
@property (weak, nonatomic) IBOutlet UIButton *loadMoreButton;
@property (weak, nonatomic) IBOutlet UIView *loadingMoreView;
@end

@implementation XMGLoadMoreFooter

+ (instancetype)footer
{
    return [[[NSBundle mainBundle] loadNibNamed:NSStringFromClass(self) owner:nil options:nil] lastObject];
}

/**
 * 点击了加载更多
 */
- (IBAction)loadMore {
    self.loadMoreButton.hidden = YES;
    self.loadingMoreView.hidden = NO;
    
    // 发出通知
    [[NSNotificationCenter defaultCenter] postNotificationName:@"loadMore" object:nil];
}

/**
 * 结束加载状态
 */
- (void)endLoading
{
    self.loadMoreButton.hidden = NO;
    self.loadingMoreView.hidden = YES;
}

@end

 

//  XMGPageView.h
//  08-分页
#import <UIKit/UIKit.h>

@interface XMGPageView : UIView
+ (instancetype)pageView;
/** 图片名字 */
@property (nonatomic, strong) NSArray *imageNames;
/** 其他圆点颜色 */
@property (nonatomic, strong) UIColor *otherColor;
/** 当前圆点颜色 */
@property (nonatomic, strong) UIColor *currentColor;
@end

//  XMGPageView.m
//  08-分页
// 框架：
// 1.苹果官方的框架:UIKit
// 2.自定义框架
// 3.第三方框架:流媒体

#import "XMGPageView.h"

@interface XMGPageView() <UIScrollViewDelegate>
@property (weak, nonatomic) IBOutlet UIScrollView *scrollView;
@property (weak, nonatomic) IBOutlet UIPageControl *pageControl;
/** 定时器 */
@property (nonatomic, strong) NSTimer *timer;
@end

@implementation XMGPageView
#pragma mark - 初始化方法
/**
 * 当控件通过代码创建时，就会调用这个方法
 * 当控件通过代码创建时，想做一些初始化操作。应该在这个方法中执行
 */
- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        [self setup];
        
        // 添加子控件代码
    }
    return self;
}

/**
 * 当控件从xib\storyboard中创建完毕时，就会调用这个方法
 * 当控件从xib\storyboard中创建完毕后的初始化操作。应该在这个方法中执行
 */
- (void)awakeFromNib
{
    [self setup];
}

/**
 * 初始化代码
 */
- (void)setup
{
    self.scrollView.backgroundColor = [UIColor redColor];
    
    // 开启定时器
    [self startTimer];
}

+ (instancetype)pageView
{
    return [[[NSBundle mainBundle] loadNibNamed:NSStringFromClass(self) owner:nil options:nil] lastObject];
}

/**
 * 当控件的尺寸发生改变的时候，会自动调用这个方法
 */
- (void)layoutSubviews
{
    [super layoutSubviews];
    
    // 设置scrollView的frame
    self.scrollView.frame = self.bounds;
    
    // 获得scrollview的尺寸
    CGFloat scrollW = self.scrollView.frame.size.width;
    CGFloat scrollH = self.scrollView.frame.size.height;
    
    // 设置pageControl
    CGFloat pageW = 100;
    CGFloat pageH = 20;
    CGFloat pageX = scrollW - pageW;
    CGFloat pageY = scrollH - pageH;
    self.pageControl.frame = CGRectMake(pageX, pageY, pageW, pageH);
    
    // 设置内容大小
    self.scrollView.contentSize = CGSizeMake(self.imageNames.count * scrollW, 0);
    
    // 设置所有imageView的frame
    for (int i = 0; i<self.scrollView.subviews.count; i++) {
        UIImageView *imageView = self.scrollView.subviews[i];
        imageView.frame = CGRectMake(i * scrollW, 0, scrollW, scrollH);
    }
}

#pragma mark - setter方法的重写
- (void)setImageNames:(NSArray *)imageNames
{
    _imageNames = imageNames;
    
    // 移除之前的所有imageView
    // 让subviews数组中的所有对象都执行removeFromSuperview方法
    [self.scrollView.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];
    
    // 根据图片名创建对应个数的imageView
    for (int i = 0; i<imageNames.count; i++) {
        UIImageView *imageView = [[UIImageView alloc] init];
        imageView.image = [UIImage imageNamed:imageNames[i]];
        [self.scrollView addSubview:imageView];
    }
    
    // 设置总页数
    self.pageControl.numberOfPages = imageNames.count;
//    if (imageNames.count <= 1) {
//        self.pageControl.hidden = YES;
//    } else {
//        self.pageControl.hidden = NO;
//    }
//    self.pageControl.hidden = imageNames.count <= 1;
//    self.pageControl.hidesForSinglePage = YES;
}

- (void)setCurrentColor:(UIColor *)currentColor
{
    _currentColor = currentColor;
    
    self.pageControl.currentPageIndicatorTintColor = currentColor;
}

- (void)setOtherColor:(UIColor *)otherColor
{
    _otherColor = otherColor;
    
    self.pageControl.pageIndicatorTintColor = otherColor;
}

#pragma mark - <UIScrollViewDelegate>
- (void)scrollViewDidScroll:(UIScrollView *)scrollView
{
    self.pageControl.currentPage = (int)(scrollView.contentOffset.x / scrollView.frame.size.width + 0.5);
}

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    [self stopTimer];
}

- (void)scrollViewDidEndDragging:(UIScrollView *)scrollView willDecelerate:(BOOL)decelerate
{
    [self startTimer];
}

#pragma mark - 定时器控制
- (void)startTimer
{
    // 创建一个定时器
    self.timer = [NSTimer scheduledTimerWithTimeInterval:1.5 target:self selector:@selector(nextPage) userInfo:nil repeats:YES];
    [[NSRunLoop mainRunLoop] addTimer:self.timer forMode:NSRunLoopCommonModes];
}

- (void)stopTimer
{
    [self.timer invalidate];
    self.timer = nil;
}

/**
 * 下一页
 */
- (void)nextPage
{
    NSInteger page = self.pageControl.currentPage + 1;
    if (page == self.pageControl.numberOfPages) {
        page = 0;
    }
    
    CGPoint offset = self.scrollView.contentOffset;
    offset.x = page * self.scrollView.frame.size.width;
    [self.scrollView setContentOffset:offset animated:YES];
    
//    NSLog(@"nextPage");
}
@end

//  XMGDealCell.h
//  06-自定义等高cell01-storyboard
#import <UIKit/UIKit.h>
@class XMGDeal;

@interface XMGDealCell : UITableViewCell
/** 团购模型数据 */
@property (nonatomic, strong) XMGDeal *deal;

+ (instancetype)cellWithTableView:(UITableView *)tableView;
@end

//  XMGDealCell.m
//  06-自定义等高cell01-storyboard
#import "XMGDealCell.h"
#import "XMGDeal.h"

@interface XMGDealCell()
@property (weak, nonatomic) IBOutlet UIImageView *iconView;
@property (weak, nonatomic) IBOutlet UILabel *titleLabel;
@property (weak, nonatomic) IBOutlet UILabel *priceLabel;
@property (weak, nonatomic) IBOutlet UILabel *buyCountLabel;
@end

@implementation XMGDealCell

+ (instancetype)cellWithTableView:(UITableView *)tableView
{
    static NSString *ID = @"deal";
    XMGDealCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];
    if (cell == nil) {
        cell = [[[NSBundle mainBundle] loadNibNamed:NSStringFromClass([XMGDealCell class]) owner:nil options:nil] lastObject];
        //设置 右边显示箭头
          cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator;
        //设置选中状态
          cell.selectionStyle = UITableViewCellSelectionStyleNone;//(取消)
    }
    return cell;
}

- (void)setDeal:(XMGDeal *)deal
{
    _deal = deal;
    
    // 设置数据
    self.iconView.image = [UIImage imageNamed:deal.icon];
    self.titleLabel.text = deal.title;
    self.priceLabel.text = [NSString stringWithFormat:@"￥%@", deal.price];
    self.buyCountLabel.text = [NSString stringWithFormat:@"%@人已购买", deal.buyCount];
}

@end

//  XMGDeal.h
//  06-自定义等高cell01-storyboard
#import <Foundation/Foundation.h>

@interface XMGDeal : NSObject
@property (strong, nonatomic) NSString *buyCount;
@property (strong, nonatomic) NSString *price;
@property (strong, nonatomic) NSString *title;
@property (strong, nonatomic) NSString *icon;

+ (instancetype)dealWithDict:(NSDictionary *)dict;
@end

//  XMGDeal.m
//  06-自定义等高cell01-storyboard
#import "XMGDeal.h"

@implementation XMGDeal
+ (instancetype)dealWithDict:(NSDictionary *)dict
{
    XMGDeal *deal = [[self alloc] init];
    
//    deal.title = dict[@"title"];
//    deal.icon = dict[@"icon"];
//    deal.buyCount = dict[@"buyCount"];
//    deal.price = dict[@"price"];
    
    // KVC - Key Value Coding
    [deal setValuesForKeysWithDictionary:dict];
    
    return deal;
}
@end