Objective-C 工厂模式(下) -- 抽象工厂模式

 1 #import <Foundation/Foundation.h>
 2 
 3 @interface BaseFactory : NSObject
 4 
 5 /**
 6  创建手机方法
 7 
 8  @return 返回手机对象
 9  */
10 - (id)createPhone;
11 
12 @end

 1 #import "BaseFactory.h"
 2 
 3 @implementation BaseFactory
 4 
 5 - (id)createPhone {
 6     
 7     //可以再添加代码禁止BaseFactory直接调用此方法
 8     //只允许子类调用
 9     return nil;
10 }
11 
12 @end

1 #import "BaseFactory.h"
2 
3 @interface AppleFactory : BaseFactory
4 
5 @end

 1 #import "AppleFactory.h"
 2 
 3 @implementation AppleFactory
 4 
 5 - (id)createPhone {
 6     
 7     NSLog(@"创建Apple手机");
 8     //这里应该是再给给工程添加手机模型, 创建并返回手机对象
 9     //现在只是举例 先不实现这部分
10     return nil;
11 }
12 
13 @end

1 #import "BaseFactory.h"
2 
3 @interface GoogleFactory : BaseFactory
4 
5 @end

 1 #import "GoogleFactory.h"
 2 
 3 @implementation GoogleFactory
 4 
 5 - (id)createPhone {
 6     
 7     NSLog(@"创建Google手机");
 8     //这里应该是再给给工程添加手机模型, 创建并返回手机对象
 9     //现在只是举例 先不实现这部分
10     return nil;
11 }
12 
13 @end

 1 #import <Foundation/Foundation.h>
 2 #import "AppleFactory.h"
 3 #import "GoogleFactory.h"
 4 
 5 typedef enum : NSUInteger {
 6     kApple = 0x1,
 7     kGoogle,
 8 } EFactoryType;
 9 
10 @interface FactoryManager : NSObject
11 
12 /**
13  创建手机工厂
14 
15  @param type 工厂类别
16  @return 返回工厂对象
17  */
18 + (id)createFactoryWithType:(EFactoryType)type;
19 
20 @end

 1 #import "FactoryManager.h"
 2 
 3 @implementation FactoryManager
 4 
 5 + (id)createFactoryWithType:(EFactoryType)type {
 6     
 7     BaseFactory *factory;
 8     if (type == kApple) {
 9         
10         factory = [[AppleFactory alloc] init];
11         
12     } else if (type == kGoogle) {
13         
14         factory = [[GoogleFactory alloc] init];
15         
16     }
17     
18     return factory;
19 }
20 
21 @end

 1 #import "ViewController.h"
 2 #import "FactoryManager.h"
 3 
 4 @interface ViewController ()
 5 
 6 @end
 7 
 8 @implementation ViewController
 9 
10 - (void)viewDidLoad {
11     
12     [super viewDidLoad];
13     
14     //创建工厂
15     AppleFactory *factory = [FactoryManager createFactoryWithType:kApple];
16     
17     //工厂生产手机
18     [factory createPhone];
19     
20 }
21 
22 
23 
24 @end