self.window = [[UIWindow alloc]initWithFrame:[UIScreen mainScreen].bounds];
[self.window makeKeyAndVisible];
self.window.backgroundColor = [UIColor whiteColor];
ViewController *vc = [[ViewController alloc]init];
UINavigationController *nVC = [[UINavigationController alloc]initWithRootViewController:vc];
self.window.rootViewController = nVC;
#import "ViewController.h"#import "GoodsInfoModel.h"#import "MyCustomCell.h"@interface ViewController (){
UITableView *_MyTableView;
float allPrice;
NSMutableArray *infoArr;
}
@property(strong,nonatomic)UIButton *allSelectBtn;
@property(strong,nonatomic)UILabel *allPriceLab;
@end
@implementation ViewController
- (void)viewDidLoad {
[super viewDidLoad];
self.title = @"购物车";
[self.navigationController.navigationBar setTitleTextAttributes:@{NSForegroundColorAttributeName : [UIColor blackColor],NSFontAttributeName:[UIFont systemFontOfSize:23.0f]}];
//初始化数据
allPrice = 0.0;
infoArr = [[NSMutableArray alloc]init];
/**
* 初始化一个数组，数组里面放字典。字典里面放的是单元格需要展示的数据
*/
for (int i = 0; i<7; i++){
NSMutableDictionary *infoDict = [[NSMutableDictionary alloc]init];
[infoDict setValue:@"img6.png" forKey:@"imageName"];
[infoDict setValue:@"这是商品标题" forKey:@"goodsTitle"];
[infoDict setValue:@"2000" forKey:@"goodsPrice"];
[infoDict setValue:[NSNumber numberWithBool:NO] forKey:@"selectState"];
[infoDict setValue:[NSNumber numberWithInt:1] forKey:@"goodsNum"];
//封装数据模型
GoodsInfoModel *goodsModel = [[GoodsInfoModel alloc]initWithDict:infoDict];
//将数据模型放入数组中
[infoArr addObject:goodsModel];
}
_MyTableView = [[UITableView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, self.view.frame.size.height) style:UITableViewStylePlain];
_MyTableView.dataSource = self;
_MyTableView.delegate = self;
//给表格添加一个尾部视图
_MyTableView.tableFooterView = [self creatFootView];
[self.view addSubview:_MyTableView];
}
-(UIView *)creatFootView{
UIView *footView = [[UIView alloc]initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 150)];
//添加一个全选文本框标签
UILabel *lab = [[UILabel alloc]initWithFrame:CGRectMake(self.view.frame.size.width - 150, 10, 50, 30)];
lab.text = @"全选";
[footView addSubview:lab];
//添加全选图片按钮
_allSelectBtn = [UIButton buttonWithType:UIButtonTypeCustom];
_allSelectBtn.frame = CGRectMake(self.view.frame.size.width- 100, 10, 30, 30);
[_allSelectBtn setImage:[UIImage imageNamed:@"复选框-未选中"] forState:UIControlStateNormal];
[_allSelectBtn addTarget:self action:@selector(selectBtnClick:) forControlEvents:UIControlEventTouchUpInside];
[footView addSubview:_allSelectBtn];
//添加小结文本框
UILabel *lab2 = [[UILabel alloc]initWithFrame:CGRectMake(self.view.frame.size.width - 150, 40, 60, 30)];
lab2.textColor = [UIColor redColor];
lab2.text = @"小结：";
[footView addSubview:lab2];
//添加一个总价格文本框，用于显示总价
_allPriceLab = [[UILabel alloc]initWithFrame:CGRectMake(self.view.frame.size.width - 100, 40, 100, 30)];
_allPriceLab.textColor = [UIColor redColor];
_allPriceLab.text = @"0.0";
[footView addSubview:_allPriceLab];
//添加一个结算按钮
UIButton *settlementBtn = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[settlementBtn setTitle:@"去结算" forState:UIControlStateNormal];
[settlementBtn setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
settlementBtn.frame = CGRectMake(10, 80, self.view.frame.size.width - 20, 30);
settlementBtn.backgroundColor = [UIColor blueColor];
[footView addSubview:settlementBtn];
return footView;
}
- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection: (NSInteger)section{
return infoArr.count;
}
//定制单元格内容
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *identify = @"indentify";
MyCustomCell *cell = [tableView dequeueReusableCellWithIdentifier:identify];
if (!cell){
cell = [[MyCustomCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:identify];
cell.delegate = self;
}
//调用方法，给单元格赋值
[cell addTheValue:infoArr[indexPath.row]];
return cell;
}
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{
return 120;
}
//单元格选中事件
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
/**
* 判断当期是否为选中状态，如果选中状态点击则更改成未选中，如果未选中点击则更改成选中状态
*/
GoodsInfoModel *model = infoArr[indexPath.row];
if (model.selectState){
model.selectState = NO;
}else{
model.selectState = YES;
}
//刷新整个表格
//[_MyTableView reloadData];
//刷新当前行
[_MyTableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationAutomatic];
[self totalPrice];
}
-(void)btnClick:(UITableViewCell *)cell andFlag:(int)flag
{
NSIndexPath *index = [_MyTableView indexPathForCell:cell];
switch (flag) {
case 11:
{
//做减法
//先获取到当期行数据源内容，改变数据源内容，刷新表格
GoodsInfoModel *model = infoArr[index.row];
if (model.goodsNum > 1)
{
model.goodsNum --;
}
}
break;
case 12:
{
//做加法
GoodsInfoModel *model = infoArr[index.row];
model.goodsNum ++;
}
break;
default:
break;
}
//刷新表格
[_MyTableView reloadData];
//计算总价
[self totalPrice];
}
//全选按钮的选中状态
-(void)selectBtnClick:(UIButton *)sender{
//判断是否选中，是改成否，否改成是，改变图片状态
sender.tag = !sender.tag;
if (sender.tag){
[sender setImage:[UIImage imageNamed:@"复选框-选中.png"] forState:UIControlStateNormal];
}else{
[sender setImage:[UIImage imageNamed:@"复选框-未选中.png"] forState:UIControlStateNormal];
}
//改变单元格选中状态
for (int i=0; i<infoArr.Count;i++){
GoodsInfoModel *model = [infoArr objectAtIndex:i];
if (model.selectState){
allPrice = allPrice + model.goodsNum *[model.goodsPrice intValue];
}
}
//给总价文本赋值
_allPriceLab.text = [NSString stringWithFormat:@"%.2f",allPrice];
NSLog(@"%f",allPrice);
//每次算完要重置为0，因为每次的都是全部循环算一遍
allPrice = 0.0;
}
#import@interface GoodsInfoModel : NSObject
@property(strong,nonatomic)NSString *imageName;//商品图片
@property(strong,nonatomic)NSString *goodsTitle;//商品标题
@property(strong,nonatomic)NSString *goodsPrice;//商品单价
@property(assign,nonatomic)BOOL selectState;//是否选中状态
@property(assign,nonatomic)int goodsNum;//商品个数
-(instancetype)initWithDict:(NSDictionary *)dict;
@end
#import "GoodsInfoModel.h"
@implementation GoodsInfoModel
-(instancetype)initWithDict:(NSDictionary *)dict{
if(self = [super init]){
self.imageName = dict[@"imageName"];
self.goodsTitle = dict[@"goodsTitle"];
self.goodsPrice = dict[@"goodsPrice"];
self.goodsNum = [dict[@"goodsNum"]intValue];
self.selectState = [dict[@"selectState"]boolValue];
}
return self;
}
@end
#import#import "GoodsInfoModel.h"//添加代理，用于按钮加减的实现@protocol MyCustomCellDelegate-(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)iddelegate;
//赋值
-(void)addTheValue:(GoodsInfoModel *)goodsModel;
@end
//
// MyCustomCell.m
// 电商项目购物车
//
//
#define WIDTH ([UIScreen mainScreen].bounds.size.width)
#import "MyCustomCell.h"
@implementation MyCustomCell
-(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.backgroundColor = [UIColor blueColor];
[_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.backgroundColor = [UIColor blackColor];
[_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){
//单元格选中的时候下面的增加减少按钮就能使用
_selectState = YES;
_isSelectImg.image = [UIImage imageNamed:@"复选框-选中"];
}else{
_selectState = NO;
_isSelectImg.image = [UIImage imageNamed:@"复选框-未选中"];
}
}
#pragma mark -- 减按钮
/**
* 点击减按钮实现数量的减少
*/
-(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];
}
}
#pragma mark -- 加按钮
/**
* 点击加按钮实现数量的增加
*/
-(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];
}
}
@end
