完结版本

iCemarose/Class/Model/KWMShoppingCart.h

@@ -16,6 +16,8 @@ typedef void(^ShoppingCartCallBack) (NSError *error,KWMCartResult *cart);
 
 @property (nonatomic, strong) NSMutableArray<KWMShopCartModel *> * items;
 
+@property (nonatomic, strong) NSNumber *count;
+
 + (instancetype)sharedInstance;
 
 - (void)allItemsWithCallback:(ShoppingCartCallBack) callback;

iCemarose/Class/Model/KWMShoppingCart.m

@@ -22,6 +22,10 @@
     return (NSMutableArray *)_result.items;
 }
 
+- (NSNumber *)count {
+    return _result.item_count;
+}
+
 - (void)setResult:(KWMCartResult *)result {
     _result = result;
     [[KWMShopCartData alloc] syncCartProducts:result.items];
@@ -33,6 +37,15 @@
     dispatch_once(&onceToken,^{
         instance = [[super allocWithZone:NULL] init];
     });
+    if (!instance.result) {
+        instance.result = [[KWMCartResult alloc] init];
+        instance.result.items = [[[KWMShopCartData alloc] getALLItems] mutableCopy];
+        NSInteger count = 0;
+        for (KWMShopCartModel *item in instance.items) {
+            count += item.quantity;
+        }
+        instance.result.item_count = @(count);
+    }
     return instance;
 }
 
@@ -46,21 +59,23 @@
 }
 
 - (void)increaseProductWithVariantId:(NSNumber *)variantId quantity:(NSInteger)quantity callback:(ShoppingCartCallBack)callback {
+    callback(nil,[self changeLocalCartWithVariantId:variantId quantity:quantity flag:1]);
     [[KWMAPIManager sharedManager] addProductWithVariantId:variantId quantity:quantity success:^(NSURLSessionDataTask *task, KWMRequestResult *result) {
         [[KWMShoppingCart sharedInstance] allItemsWithCallback:^(NSError *error, KWMCartResult *cart) {
-            callback(error,cart);
+//            callback(error,cart);
         }];
     } failure:^(NSURLSessionDataTask *task, NSError *error) {
-        callback(error,nil);
+//        callback(error,nil);
     }];
 }
 
 - (void)updateProductWithVariantId:(NSNumber *)variantId quantity:(NSInteger)quantity callback:(ShoppingCartCallBack)callback {
+    callback(nil,[self changeLocalCartWithVariantId:variantId quantity:quantity flag:quantity ? 2 : 0]);
     [[KWMAPIManager sharedManager] updateProductWithVariantId:variantId quantity:quantity success:^(NSURLSessionDataTask *task, KWMCartResult *result) {
         [[KWMShoppingCart sharedInstance] setResult:result];
-        callback(nil,result);
+//        callback(nil,result);
     } failure:^(NSURLSessionDataTask *task, NSError *error) {
-        callback(error,nil);
+//        callback(error,nil);
     }];
 }
 
@@ -68,6 +83,40 @@
     [self updateProductWithVariantId:variantId quantity:0 callback:callback];
 }
 
+- (KWMCartResult *) changeLocalCartWithVariantId:(NSNumber *) variantId quantity:(NSInteger) quantity flag:(NSInteger) flag {
+    NSMutableArray<KWMShopCartModel *> *items= self.items;
+    NSInteger count = self.result.item_count.integerValue;
+    BOOL processed = NO;
+    for (KWMShopCartModel *item in items) {
+        if (item.identifier.integerValue == variantId.integerValue) {
+            switch (flag) {
+                case 0:
+                    count -= item.quantity;
+                    [items removeObject:item];
+                    break;
+                case 1:
+                    count += quantity;
+                    item.quantity += quantity;
+                    break;
+                default:
+                    count -= item.quantity - quantity;
+                    item.quantity = quantity;
+            }
+            processed = YES;
+            break;
+        }
+    }
+    if (!processed) {
+        KWMShopCartModel *model = [[KWMShopCartModel alloc] init];
+        model.identifier = variantId.stringValue;
+        model.quantity = quantity;
+        count += quantity;
+        [items addObject:model];
+    }
+    self.result.item_count = @(count);
+    return self.result;
+}
+
 + (id)allocWithZone:(struct _NSZone *)zone {
     return [KWMShoppingCart sharedInstance];
 }

iCemarose/Class/UI/Brand/KWMBrandCaramelVC.m

@@ -18,6 +18,7 @@
 #import "UIColor+SAMAdditions.h"
 #import "KWMFilterVC.h"
 #import "KWMImageBlurUtil.h"
+#import "KWMShoppingCart.h"
 
 @interface KWMBrandCaramelVC ()<UITableViewDelegate,UITableViewDataSource,KWMBrandCaramelCellDelegate>
 @property (nonatomic) KWMBarandSelectView *barandSelectView;
@@ -135,8 +136,7 @@
 - (void)initHeaderView{
     
     _barandSelectView = [[KWMBarandSelectView alloc] initWithFrame:CGRectMake(0, 0, UI_SCREEN_WIDTH, 64)];
-    NSArray *arr = [[KWMShopCartData alloc] getALLItems];
-    _barandSelectView.count = arr.count;
+    _barandSelectView.count = [[KWMShoppingCart sharedInstance] count].integerValue;
     _barandSelectView.lbBrand.text = [_brand uppercaseString];
     
     

iCemarose/Class/UI/Brand/KWMBrandVC.m

@@ -18,6 +18,7 @@
 #import <SDWebImage/UIImageView+WebCache.h>
 #import "KWMBrandsTypeModel.h"
 #import "UIColor+SAMAdditions.h"
+#import "KWMShoppingCart.h"
 
 
 @interface KWMBrandVC ()<KWMCarCountViewDelegate>
@@ -79,8 +80,7 @@ static NSString *cellId = @"KWMBrandCell";
 
 - (void) initHeardView{
     _vCartCount = [[KWMCarCountView alloc] initWithFrame:CGRectMake(0, 0, UI_SCREEN_WIDTH, 64)];
-    NSArray *arr = [[KWMShopCartData alloc] getALLItems];
-    _vCartCount.count = arr.count;
+    _vCartCount.count = [[KWMShoppingCart sharedInstance] count].integerValue;
     _vCartCount.delegate = self;
     [self.view addSubview:_vCartCount];
 }

iCemarose/Class/UI/Home/KWMHomeVC.m

@@ -73,8 +73,8 @@
     [self.navigationController setNavigationBarHidden:YES];
     [self initHeaderView];
     if (_searchBar) {
-        NSArray *arr = [[KWMShopCartData alloc] getALLItems];
-        _searchBar.count = arr.count;
+        NSInteger count = [[KWMShoppingCart sharedInstance] count].integerValue;
+        _searchBar.count = count;
     }
     [_searchBar resumeView];
 }

iCemarose/Class/UI/Product/KWMNewVC.m

@@ -18,6 +18,7 @@
 #import "KWMBrandCaramelVC.h"
 #import "UIColor+SAMAdditions.h"
 #import "KWMProductDetailVC.h"
+#import "KWMShoppingCart.h"
 
 
 @interface KWMNewVC ()
@@ -93,8 +94,8 @@ static NSString * idStr = @"KWMNewGoodsCell";
     [self.navigationController setNavigationBarHidden:YES];
     [self.tabBarController setHidesBottomBarWhenPushed:NO];
     if (_searchBar) {
-        NSArray *arr = [[KWMShopCartData alloc] getALLItems];
-        _searchBar.count = arr.count;
+        NSInteger count = [[KWMShoppingCart sharedInstance] count].integerValue;
+        _searchBar.count = count;
     }
     [_searchBar resumeView];
     _vBackground.hidden = YES;

iCemarose/Class/UI/Product/KWMProductDetailVC.m

@@ -126,9 +126,8 @@
 }
 
 - (void)initShopCartCount{
-    NSArray *shopCarArray = [[KWMShopCartData alloc] getALLItems];
-    NSInteger count = shopCarArray == 0?0:shopCarArray.count;
-    [self.btnShopCart setTitle:@(count).stringValue forState:UIControlStateNormal];
+    NSNumber *count = [[KWMShoppingCart sharedInstance] count];
+    [self.btnShopCart setTitle:count.stringValue forState:UIControlStateNormal];
 }
 
 - (void)setProductId:(NSNumber *)productId{

iCemarose/Class/UI/ShopCart/KWMShopCartVC.m

@@ -40,9 +40,6 @@
     self.title = @"购物车";
 //    self.vBackground.hidden = NO;
     _shopCartList = (NSMutableArray *)[[KWMShoppingCart sharedInstance] items];
-    if (!_shopCartList) {
-        _shopCartList = [NSMutableArray arrayWithArray:[[KWMShopCartData alloc] getALLItems]];
-    }
     if (_shopCartList.count == 0) {
         self.vBackground.hidden = NO;
     }else{