[IOS笔记]字典转模型

#import "ViewController.h"#import "Shop.h"@interface ViewController ()@property (weak, nonatomic) IBOutlet UIView *shopCarView;@property (weak, nonatomic) IBOutlet UIButton *addButton;@property (weak, nonatomic) IBOutlet UIButton *removeButton;@property (nonatomic, strong) NSArray  *gDataArr;@end@implementation ViewController-(NSArray *)gDataArr{    if(_gDataArr == nil){//        加载数据//        1获取全路径        NSString *dataPath = [[NSBundle mainBundle] pathForResource:@"shopData.plist" ofType:nil];        self.gDataArr = [NSArray arrayWithContentsOfFile:dataPath];//        字典转模型//        创建临时数组        NSMutableArray *tempArray = [NSMutableArray array];                for (NSDictionary *dict in self.gDataArr) {//            创建shop对象            Shop *shop = [[Shop alloc] init];            shop.name = dict[@"name"];            shop.icon = dict[@"icon"];                        //把模型装入数组            [tempArray addObject:shop];                    }        self.gDataArr = tempArray;    }    return _gDataArr;}- (void)viewDidLoad {    [super viewDidLoad];}//添加到购物车- (IBAction)add:(UIButton *)button {    //    1.总列数    NSInteger allCols = 3;//    2.商品的宽度    CGFloat width = 80;    CGFloat height = 100;//    3.求水平间距    CGFloat hMargin = (self.shopCarView.frame.size.width - allCols * width)/(allCols -1);    CGFloat vMargin = (self.shopCarView.frame.size.height - 2 * height)/1;//    4.用subview的个数代替索引    NSInteger index = self.shopCarView.subviews.count;    //    4.求出x值    CGFloat x = (hMargin + width) * (index % allCols);    CGFloat y = (vMargin + height) * (index / allCols);        //    5创建商品的view    UIView *shopView = [[UIView alloc] init];    shopView.frame = CGRectMake(x, y, width, height);    shopView.backgroundColor = [UIColor greenColor];        [self.shopCarView addSubview:shopView];    //    6创建商品的UIImageView对象    UIImageView *iconView = [[UIImageView alloc] init];    iconView.frame = CGRectMake(0, 0, width, width);    iconView.backgroundColor = [UIColor purpleColor];    [shopView addSubview:iconView];    //    7创建商品的label对象    UILabel *titleLabel = [[UILabel alloc] init];    titleLabel.frame = CGRectMake(0, width, width, height - width);    titleLabel.backgroundColor = [UIColor yellowColor];    titleLabel.textAlignment = NSTextAlignmentCenter;    [shopView addSubview:titleLabel];    //    8设置数据//    NSDictionary *dict = self.gDataArr[index];//    iconView.image = [UIImage imageNamed:dict[@"icon"]];//    titleLabel.text = dict[@"name"];    Shop *shop = self.gDataArr[index];    iconView.image = [UIImage imageNamed:shop.icon];    titleLabel.text = shop.name;        //    设置按钮的状态    if (index == 5) {        button.enabled = NO;    }    //    删除按钮的状态    self.removeButton.enabled = YES;}//从购物车移除- (IBAction)remove:(UIButton *)button {    //    1删除最后一个商品    UIView *lastShowView = [self.shopCarView.subviews lastObject];    [lastShowView removeFromSuperview];    //    2设置索引的值     self.addButton.enabled = YES;        if (self.shopCarView.subviews.count == 0) {        self.removeButton.enabled = NO;    }    }@end