iOS中使用UItableviewcell实现团购和微博界面的示例

#import <Foundation/Foundation.h>
#import "Global.h"

@interface YYtg : NSObject
@property(nonatomic,copy)NSString *buyCount;
@property(nonatomic,copy)NSString *icon;
@property(nonatomic,copy)NSString *price;
@property(nonatomic,copy)NSString *title;
YYinitH(tg)
@end

#import "YYtg.h"

@implementation YYtg
YYinitM(tg)
@end

#import "YYViewController.h"
#import "YYtg.h"

@interface YYViewController ()<UITableViewDataSource>
@property(nonatomic,strong)NSArray *tg;
@property (strong, nonatomic) IBOutlet UITableView *tableview;

@end

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.tableview.rowHeight=100;
   
}

#pragma mark-  懒加载
-(NSArray *)tg
{
    if (_tg==nil) {
        NSString *fullpath=[[NSBundle mainBundle]pathForResource:@"tgs.plist" ofType:nil];
        NSArray *temparray=[NSArray arrayWithContentsOfFile:fullpath];
       
        NSMutableArray *arrayM=[NSMutableArray arrayWithCapacity:temparray.count];
        for (NSDictionary *dict in temparray) {
            YYtg *tg=[YYtg tgWithDict:dict];
            [arrayM addObject:tg];
        }
        _tg=[arrayM mutableCopy];
    }
    return _tg;
}

#pragma mark-数据显示
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.tg.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    //读取xib中的数据
//    NSArray *arrayM=[[NSBundle mainBundle]loadNibNamed:@"tgcell" owner:nil options:nil];
//    UITableViewCell *cell=[arrayM firstObject];
    static NSString *identifier=@"tg";
    UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:identifier];
    if (cell==nil) {
       // cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
        cell= [[[NSBundle mainBundle]loadNibNamed:@"tgcell" owner:nil options:nil] firstObject];
    }
   
    YYtg *tg=self.tg[indexPath.row];
    //设置数据
    //使用tag
    UIImageView *imgv=(UIImageView *)[cell viewWithTag:1];
    imgv.image=[UIImage imageNamed:tg.icon];
    UILabel *buyCount=(UILabel *)[cell viewWithTag:4];
    buyCount.text=[NSString stringWithFormat:@"已有%@人购买",tg.buyCount];
    UILabel *title=(UILabel *)[cell viewWithTag:2];
    title.text=tg.title;
    UILabel *price=(UILabel *)[cell viewWithTag:3];
    price.text=[NSString stringWithFormat:@"$%@",tg.price];
   
   
    //返回cell
    return cell;
}

//隐藏状态栏
-(BOOL)prefersStatusBarHidden
{
    return YES;
}
@end

#import <UIKit/UIKit.h>
#import "YYtg.h"

@interface YYtgcell : UITableViewCell
@property(nonatomic,strong)YYtg *yytg;

@end

#import "YYtgcell.h"
//私有扩展
@interface YYtgcell()
@property (strong, nonatomic) IBOutlet UIImageView *img;
@property (strong, nonatomic) IBOutlet UILabel *titlelab;
@property (strong, nonatomic) IBOutlet UILabel *pricelab;
@property (strong, nonatomic) IBOutlet UILabel *buycountlab;
@end

#pragma mark 重写set方法，完成数据的赋值操作
-(void)setYytg:(YYtg *)yytg
{
    _yytg=yytg;
    self.img.image=[UIImage imageNamed:yytg.icon];
    self.titlelab.text=yytg.title;
    self.pricelab.text=[NSString stringWithFormat:@"$%@",yytg.price];
    self.buycountlab.text=[NSString stringWithFormat:@"已有%@人购买",yytg.buyCount];
}
@end

#import "YYViewController.h"
#import "YYtg.h"
#import "YYtgcell.h"

@interface YYViewController ()<UITableViewDataSource,UITableViewDelegate>
@property (strong, nonatomic) IBOutlet UITableView *tableview;

@property(strong,nonatomic)NSArray *tg;
@end

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.tableview.rowHeight=80.f;
}
#pragma mark-  懒加载
-(NSArray *)tg
{
    if (_tg==nil) {
        NSString *fullpath=[[NSBundle mainBundle]pathForResource:@"tgs.plist" ofType:nil];
        NSArray *temparray=[NSArray arrayWithContentsOfFile:fullpath];
       
        NSMutableArray *arrayM=[NSMutableArray arrayWithCapacity:temparray.count];
        for (NSDictionary *dict in temparray) {
            YYtg *tg=[YYtg tgWithDict:dict];
            [arrayM addObject:tg];
        }
        _tg=[arrayM mutableCopy];
    }
    return _tg;
}

#pragma mark- xib创建cell数据处理
#pragma mark 多少组
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}
#pragma mark多少行
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.tg.count;
}
#pragma mark设置每组每行
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *identifier= @"tg";
    YYtgcell *cell=[tableView dequeueReusableCellWithIdentifier:identifier];
    if (cell==nil) {
        //如何让创建的cell加个戳
        //对于加载的xib文件，可以到xib视图的属性选择器中进行设置
        cell=[[[NSBundle mainBundle]loadNibNamed:@"tgcell" owner:nil options:nil]firstObject];
        NSLog(@"创建了一个cell");
    }
   
    //设置cell的数据
    //获取当前行的模型
    YYtg *tg=self.tg[indexPath.row];
    cell.yytg=tg;
    return cell;
}

-(BOOL)prefersStatusBarHidden
{
    return YES;
}

@end

@interface YYtgcell : UITableViewCell
@property(nonatomic,strong)YYtgModel *yytg;

//把加载数据（使用xib创建cell的内部细节进行封装）
+(instancetype)tgcellWithTableView:(UITableView *)tableView;
@end

#import "YYtgcell.h"
//私有扩展
@interface YYtgcell()
@property (strong, nonatomic) IBOutlet UIImageView *img;
@property (strong, nonatomic) IBOutlet UILabel *titlelab;
@property (strong, nonatomic) IBOutlet UILabel *pricelab;
@property (strong, nonatomic) IBOutlet UILabel *buycountlab;
@end

#pragma mark 重写set方法，完成数据的赋值操作
-(void)setYytg:(YYtgModel *)yytg
{
    _yytg=yytg;
    self.img.image=[UIImage imageNamed:yytg.icon];
    self.titlelab.text=yytg.title;
    self.pricelab.text=[NSString stringWithFormat:@"$%@",yytg.price];
    self.buycountlab.text=[NSString stringWithFormat:@"已有%@人购买",yytg.buyCount];
}

+(instancetype)tgcellWithTableView:(UITableView *)tableView
{
    static NSString *identifier= @"tg";
    YYtgcell *cell=[tableView dequeueReusableCellWithIdentifier:identifier];
    if (cell==nil) {
        //如何让创建的cell加个戳
        //对于加载的xib文件，可以到xib视图的属性选择器中进行设置
        cell=[[[NSBundle mainBundle]loadNibNamed:@"tgcell" owner:nil options:nil]firstObject];
        NSLog(@"创建了一个cell");
    }
    return cell;
}

@end

#import "YYViewController.h"
#import "YYtgModel.h"
#import "YYtgcell.h"

@interface YYViewController ()<UITableViewDataSource,UITableViewDelegate>
@property (strong, nonatomic) IBOutlet UITableView *tableview;

@property(strong,nonatomic)NSArray *tg;
@end

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.tableview.rowHeight=80.f;
}
#pragma mark-  懒加载
-(NSArray *)tg
{
    if (_tg==nil) {
        NSString *fullpath=[[NSBundle mainBundle]pathForResource:@"tgs.plist" ofType:nil];
        NSArray *temparray=[NSArray arrayWithContentsOfFile:fullpath];
       
        NSMutableArray *arrayM=[NSMutableArray arrayWithCapacity:temparray.count];
        for (NSDictionary *dict in temparray) {
            YYtgModel *tg=[YYtgModel tgWithDict:dict];
            [arrayM addObject:tg];
        }
        _tg=[arrayM mutableCopy];
    }
    return _tg;
}

#pragma mark- xib创建cell数据处理

#pragma mark 多少组
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

#pragma mark多少行
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.tg.count;
}

#pragma mark设置每组每行
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    //1.创建cell
    YYtgcell *cell=[YYtgcell tgcellWithTableView:tableView];
  
    //2.获取当前行的模型,设置cell的数据
    YYtgModel *tg=self.tg[indexPath.row];
    cell.yytg=tg;
   
    //3.返回cell
    return cell;
}

#pragma mark- 隐藏状态栏
-(BOOL)prefersStatusBarHidden
{
    return YES;
}

@end

@interface NJWeibo : NSObject
@property (nonatomic, copy) NSString *text; // 内容
@property (nonatomic, copy) NSString *icon; // 头像
@property (nonatomic, copy) NSString *name; // 昵称
@property (nonatomic, copy) NSString *picture; // 配图
@property (nonatomic, assign) BOOL vip;

- (id)initWithDict:(NSDictionary *)dict;
+ (id)weiboWithDict:(NSDictionary *)dict;
@end

@implementation NJWeibo

- (id)initWithDict:(NSDictionary *)dict
{
    if (self = [super init]) {
        [self setValuesForKeysWithDictionary:dict];
    }
    return self;
}

+ (id)weiboWithDict:(NSDictionary *)dict
{
    return [[self alloc] initWithDict:dict];
}

@end

@interface NJWeiboCell : UITableViewCell
/**
 *  接收外界传入的模型
 */
//@property (nonatomic, strong) NJWeibo *weibo;

@property (nonatomic, strong) NJWeiboFrame *weiboFrame;

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

#define NJNameFont [UIFont systemFontOfSize:15]
#define NJTextFont [UIFont systemFontOfSize:16]

@interface NJWeiboCell ()
/**
 *  头像
 */
@property (nonatomic, weak) UIImageView *iconView;
/**
 *  vip
 */
@property (nonatomic, weak) UIImageView *vipView;
/**
 *  配图
 */
@property (nonatomic, weak) UIImageView *pictureView;
/**
 *  昵称
 */
@property (nonatomic, weak) UILabel *nameLabel;
/**
 *  正文
 */
@property (nonatomic, weak) UILabel *introLabel;
@end

+ (instancetype)cellWithTableView:(UITableView *)tableView
{
    // NSLog(@"cellForRowAtIndexPath");
    static NSString *identifier = @"status";
    // 1.缓存中取
    NJWeiboCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];
    // 2.创建
    if (cell == nil) {
        cell = [[NJWeiboCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identifier];
    }
    return cell;
}

/**
 *  构造方法(在初始化对象的时候会调用)
 *  一般在这个方法中添加需要显示的子控件
 */
- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
    self = [super initWithStyle:style reuseIdentifier:reuseIdentifier];
    if (self) {
        // 让自定义Cell和系统的cell一样, 一创建出来就拥有一些子控件提供给我们使用
        // 1.创建头像
        UIImageView *iconView = [[UIImageView alloc] init];
        [self.contentView addSubview:iconView];
        self.iconView = iconView;
       
        // 2.创建昵称
        UILabel *nameLabel = [[UILabel alloc] init];
        nameLabel.font = NJNameFont;
        // nameLabel.backgroundColor = [UIColor redColor];
        [self.contentView addSubview:nameLabel];
        self.nameLabel = nameLabel;
       
        // 3.创建vip
        UIImageView *vipView = [[UIImageView alloc] init];
        vipView.image = [UIImage imageNamed:@"vip"];
        [self.contentView addSubview:vipView];
        self.vipView = vipView;
       
        // 4.创建正文
        UILabel *introLabel = [[UILabel alloc] init];
        introLabel.font = NJTextFont;
        introLabel.numberOfLines = 0;
        // introLabel.backgroundColor = [UIColor greenColor];
        [self.contentView addSubview:introLabel];
        self.introLabel = introLabel;
       
        // 5.创建配图
        UIImageView *pictureView = [[UIImageView alloc] init];
        [self.contentView addSubview:pictureView];
        self.pictureView = pictureView;
       
    }
    return self;
}

- (void)setWeiboFrame:(NJWeiboFrame *)weiboFrame
{
    _weiboFrame = weiboFrame;
   
    // 1.给子控件赋值数据
    [self settingData];
    // 2.设置frame
    [self settingFrame];
}

/**
 *  设置子控件的数据
 */
- (void)settingData
{
    NJWeibo *weibo = self.weiboFrame.weibo;
   
    // 设置头像
    self.iconView.image = [UIImage imageNamed:weibo.icon];
    // 设置昵称
    self.nameLabel.text = weibo.name;
    // 设置vip
    if (weibo.vip) {
        self.vipView.hidden = NO;
        self.nameLabel.textColor = [UIColor redColor];
    }else
    {
        self.vipView.hidden = YES;
        self.nameLabel.textColor = [UIColor blackColor];
    }
    // 设置内容
    self.introLabel.text = weibo.text;
   
    // 设置配图
    if (weibo.picture) {// 有配图
        self.pictureView.image = [UIImage imageNamed:weibo.picture];
        self.pictureView.hidden = NO;
    }else
    {
        self.pictureView.hidden = YES;
    }
}
/**
 *  设置子控件的frame
 */
- (void)settingFrame
{

       // 设置头像的frame
    self.iconView.frame = self.weiboFrame.iconF;
   
    // 设置昵称的frame
        self.nameLabel.frame = self.weiboFrame.nameF;
   
    // 设置vip的frame
       self.vipView.frame = self.weiboFrame.vipF;
   
    // 设置正文的frame
       self.introLabel.frame = self.weiboFrame.introF;
   
    // 设置配图的frame

    if (self.weiboFrame.weibo.picture) {// 有配图
        self.pictureView.frame = self.weiboFrame.pictrueF;
    }
}

/**
 *  计算文本的宽高
 *
 *  @param str     需要计算的文本
 *  @param font    文本显示的字体
 *  @param maxSize 文本显示的范围
 *
 *  @return 文本占用的真实宽高
 */
- (CGSize)sizeWithString:(NSString *)str font:(UIFont *)font maxSize:(CGSize)maxSize
{
    NSDictionary *dict = @{NSFontAttributeName : font};
    // 如果将来计算的文字的范围超出了指定的范围,返回的就是指定的范围
    // 如果将来计算的文字的范围小于指定的范围, 返回的就是真实的范围
    CGSize size =  [str boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:dict context:nil].size;
    return size;
}

@end

#import <Foundation/Foundation.h>
@class NJWeibo;
@interface NJWeiboFrame : NSObject
/**
 *  头像的frame
 */
@property (nonatomic, assign) CGRect iconF;
/**
 *  昵称的frame
 */
@property (nonatomic, assign) CGRect nameF;
/**
 *  vip的frame
 */
@property (nonatomic, assign) CGRect vipF;
/**
 *  正文的frame
 */
@property (nonatomic, assign) CGRect introF;
/**
 *  配图的frame
 */
@property (nonatomic, assign) CGRect pictrueF;
/**
 *  行高
 */
@property (nonatomic, assign) CGFloat cellHeight;

/**
 *  模型数据
 */
@property (nonatomic, strong) NJWeibo *weibo;
@end

@implementation NJWeiboFrame

- (void)setWeibo:(NJWeibo *)weibo
{
    _weibo = weibo;
   
    // 间隙
    CGFloat padding = 10;
   
    // 设置头像的frame
    CGFloat iconViewX = padding;
    CGFloat iconViewY = padding;
    CGFloat iconViewW = 30;
    CGFloat iconViewH = 30;
    self.iconF = CGRectMake(iconViewX, iconViewY, iconViewW, iconViewH);
   
    // 设置昵称的frame
    // 昵称的x = 头像最大的x + 间隙
    CGFloat nameLabelX = CGRectGetMaxX(self.iconF) + padding;
    // 计算文字的宽高
    CGSize nameSize = [self sizeWithString:_weibo.name font:NJNameFont maxSize:CGSizeMake(MAXFLOAT, MAXFLOAT)];
   
    CGFloat nameLabelH = nameSize.height;
    CGFloat nameLabelW = nameSize.width;
    CGFloat nameLabelY = iconViewY + (iconViewH - nameLabelH) * 0.5;
   self.nameF = CGRectMake(nameLabelX, nameLabelY, nameLabelW, nameLabelH);
   
    // 设置vip的frame
    CGFloat vipViewX = CGRectGetMaxX(self.nameF) + padding;
    CGFloat vipViewY = nameLabelY;
    CGFloat vipViewW = 14;
    CGFloat vipViewH = 14;
    self.vipF = CGRectMake(vipViewX, vipViewY, vipViewW, vipViewH);
   
    // 设置正文的frame
    CGFloat introLabelX = iconViewX;
    CGFloat introLabelY = CGRectGetMaxY(self.iconF) + padding;
    CGSize textSize =  [self sizeWithString:_weibo.text font:NJTextFont maxSize:CGSizeMake(300, MAXFLOAT)];
   
    CGFloat introLabelW = textSize.width;
    CGFloat introLabelH = textSize.height;
   
    self.introF = CGRectMake(introLabelX, introLabelY, introLabelW, introLabelH);
   
    // 设置配图的frame
    CGFloat cellHeight = 0;
    if (_weibo.picture) {// 有配图
        CGFloat pictureViewX = iconViewX;
        CGFloat pictureViewY = CGRectGetMaxY(self.introF) + padding;
        CGFloat pictureViewW = 100;
        CGFloat pictureViewH = 100;
        self.pictrueF = CGRectMake(pictureViewX, pictureViewY, pictureViewW, pictureViewH);
       
        // 计算行高
        self.cellHeight = CGRectGetMaxY(self.pictrueF) + padding;
    }else
    {
        // 没有配图情况下的行高
        self.cellHeight = CGRectGetMaxY(self.introF) + padding;
    }
   
}

/**
 *  计算文本的宽高
 *
 *  @param str     需要计算的文本
 *  @param font    文本显示的字体
 *  @param maxSize 文本显示的范围
 *
 *  @return 文本占用的真实宽高
 */
- (CGSize)sizeWithString:(NSString *)str font:(UIFont *)font maxSize:(CGSize)maxSize
{
    NSDictionary *dict = @{NSFontAttributeName : font};
    // 如果将来计算的文字的范围超出了指定的范围,返回的就是指定的范围
    // 如果将来计算的文字的范围小于指定的范围, 返回的就是真实的范围
    CGSize size =  [str boundingRectWithSize:maxSize options:NSStringDrawingUsesLineFragmentOrigin attributes:dict context:nil].size;
    return size;
}
@end

@interface NJViewController ()
@property (nonatomic, strong) NSArray *statusFrames;
@end

#pragma mark - 数据源方法

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return self.statusFrames.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    NJWeiboCell *cell = [NJWeiboCell cellWithTableView:tableView];
    // 3.设置数据
   cell.weiboFrame = self.statusFrames[indexPath.row];
   
    // 4.返回
    return cell;
}
#pragma mark - 懒加载
- (NSArray *)statusFrames
{
    if (_statusFrames == nil) {
        NSString *fullPath = [[NSBundle mainBundle] pathForResource:@"statuses.plist" ofType:nil];
        NSArray *dictArray = [NSArray arrayWithContentsOfFile:fullPath];
        NSMutableArray *models = [NSMutableArray arrayWithCapacity:dictArray.count];
        for (NSDictionary *dict in dictArray) {
            // 创建模型
            NJWeibo *weibo = [NJWeibo weiboWithDict:dict];
            // 根据模型数据创建frame模型
            NJWeiboFrame *wbF = [[NJWeiboFrame alloc] init];
            wbF.weibo = weibo;
           
            [models addObject:wbF];
        }
        self.statusFrames = [models copy];
    }
    return _statusFrames;
}

#pragma mark - 代理方法
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    // NSLog(@"heightForRowAtIndexPath");
    // 取出对应航的frame模型
    NJWeiboFrame *wbF = self.statusFrames[indexPath.row];
    NSLog(@"height = %f", wbF.cellHeight);
    return wbF.cellHeight;
}

- (BOOL) prefersStatusBarHidden
{
    return YES;
}
@end