2.6 创建自定义cell类，并实现初始化方法
创建一个类名叫MyCustomCell继承UITableViewCell,在MyCustomCell.m中实现重写的初始化方法。
2.6.1 代码：
MyCustomCell.h ：
#import <UIKit/UIKit.h>
#import "GoodsInfoModel.h"
//添加代理，用于按钮加减的实现
@protocol MyCustomCellDelegate <NSObject>
-(void)btnClick:(UITableViewCell *)cell andFlag:(int)flag;
@end
@interface MyCustomCell : UITableViewCell
@property(strong,nonatomic)UIImageView *goodsImgV;//商品图片
@property(strong,nonatomic)UILabel *goodsTitleLab;//商品标题
@property(strong,nonatomic)UILabel *priceTitleLab;//价格标签
@property(strong,nonatomic)UILabel *priceLab;//具体价格
@property(strong,nonatomic)UILabel *goodsNumLab;//购买数量标签
@property(strong,nonatomic)UILabel *numCountLab;//购买商品的数量
@property(strong,nonatomic)UIButton *addBtn;//添加商品数量
@property(strong,nonatomic)UIButton *deleteBtn;//删除商品数量
@property(strong,nonatomic)UIButton *isSelectBtn;//是否选中按钮
@property(strong,nonatomic)UIImageView *isSelectImg;//是否选中图片
@property(assign,nonatomic)BOOL selectState;//选中状态
@property(assign,nonatomic)id<MyCustomCellDelegate>delegate;
//赋值
-(void)addTheValue:(GoodsInfoModel *)goodsModel;
MyCustomCell.m :先写一个宏定义宽度。#define WIDTH ([UIScreen mainScreen].bounds.size.width)
-(instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier])
{
//布局界面
UIView * bgView = [[UIView alloc]initWithFrame:CGRectMake(5, 5, WIDTH-10, 95)];
bgView.backgroundColor = [UIColor whiteColor];
//添加商品图片
_goodsImgV = [[UIImageView alloc]initWithFrame:CGRectMake(5, 10, 80, 80)];
_goodsImgV.backgroundColor = [UIColor greenColor];
[bgView addSubview:_goodsImgV];
//添加商品标题
_goodsTitleLab = [[UILabel alloc]initWithFrame:CGRectMake(90, 5, 200, 30)];
_goodsTitleLab.text = @"afadsfa fa";
_goodsTitleLab.backgroundColor = [UIColor clearColor];
[bgView addSubview:_goodsTitleLab];
//促销价
_priceTitleLab = [[UILabel alloc]initWithFrame:CGRectMake(90, 35, 70, 30)];
_priceTitleLab.text = @"促销价:";
_priceTitleLab.backgroundColor = [UIColor clearColor];
[bgView addSubview:_priceTitleLab];
//商品价格
_priceLab = [[UILabel alloc]initWithFrame:CGRectMake(160, 35, 100, 30)];
_priceLab.text = @"1990";
_priceLab.textColor = [UIColor redColor];
[bgView addSubview:_priceLab];
//购买数量
_goodsNumLab = [[UILabel alloc]initWithFrame:CGRectMake(90, 65, 90, 30)];
_goodsNumLab.text = @"购买数量：";
[bgView addSubview:_goodsNumLab];
//减按钮
_deleteBtn = [UIButton buttonWithType:UIButtonTypeCustom];
_deleteBtn.frame = CGRectMake(180, 65, 30, 30);
[_deleteBtn setImage:[UIImage imageNamed:@"按钮-.png"] forState:UIControlStateNormal];
[_deleteBtn addTarget:self action:@selector(deleteBtnAction:) forControlEvents:UIControlEventTouchUpInside];
_deleteBtn.tag = 11;
[bgView addSubview:_deleteBtn];
//购买商品的数量
_numCountLab = [[UILabel alloc]initWithFrame:CGRectMake(210, 65, 50, 30)];
_numCountLab.textAlignment = NSTextAlignmentCenter;
[bgView addSubview:_numCountLab];
//加按钮
_addBtn = [UIButton buttonWithType:UIButtonTypeCustom];
_addBtn.frame = CGRectMake(260, 65, 30, 30);
[_addBtn setImage:[UIImage imageNamed:@"按钮+.png"] forState:UIControlStateNormal];
[_addBtn addTarget:self action:@selector(addBtnAction:) forControlEvents:UIControlEventTouchUpInside];
_addBtn.tag = 12;
[bgView addSubview:_addBtn];
//是否选中图片
_isSelectImg = [[UIImageView alloc]initWithFrame:CGRectMake(WIDTH - 50, 10, 30, 30)];
[bgView addSubview:_isSelectImg];
[self addSubview:bgView];
}
return self;
}
/**
* 给单元格赋值
* @param goodsModel 里面存放各个控件需要的数值
*/
-(void)addTheValue:(GoodsInfoModel *)goodsModel
{
_goodsImgV.image = [UIImage imageNamed:goodsModel.imageName];
_goodsTitleLab.text = goodsModel.goodsTitle;
_priceLab.text = goodsModel.goodsPrice;
_numCountLab.text = [NSString stringWithFormat:@"%d",goodsModel.goodsNum];
if (goodsModel.selectState)
{
_selectState = YES;
_isSelectImg.image = [UIImage imageNamed:@"复选框-选中"];
}else{
_selectState = NO;
_isSelectImg.image = [UIImage imageNamed:@"复选框-未选中"];
}
}
/**
* 点击减按钮实现数量的减少
*
* @param sender 减按钮
*/
-(void)deleteBtnAction:(UIButton *)sender
{
//判断是否选中，选中才能点击
if (_selectState == YES)
{
//调用代理
[self.delegate btnClick:self andFlag:(int)sender.tag];
}
}
/**
* 点击加按钮实现数量的增加
*
* @param sender 加按钮
*/
-(void)addBtnAction:(UIButton *)sender
{
//判断是否选中，选中才能点击
if (_selectState == YES)
{
//调用代理
[self.delegate btnClick:self andFlag:(int)sender.tag];
}
}
