状态组合情况太多的处理方式

最新推荐文章于 2025-03-11 11:41:00 发布

原创最新推荐文章于 2025-03-11 11:41:00 发布 · 698 阅读

0 ·

CC 4.0 BY-SA版权

iOS 同时被 3 个专栏收录

681 篇文章

订阅专栏

iOS_网络

54 篇文章

订阅专栏

异常类

5 篇文章

订阅专栏

本文通过一个Objective-C的实际代码示例介绍了如何定义和使用枚举类型，包括服务器状态和客户端状态的定义，并展示了如何在触摸事件中根据组合状态进行处理。

//
//  ViewController.m
//  test_NSEnum_status_01
//
//  Created by jeffasd on 16/9/9.
//  Copyright © 2016年 jeffasd. All rights reserved.
//

#import "ViewController.h"


typedef NS_ENUM(NSUInteger, RemoteServerStatus) {
    RemoteServerNone = 0,
    RemoteServerUnknown,
    RemoteServerNetWorkDisconnect,
};

typedef NS_ENUM(NSUInteger, RemoteClientStatus) {
    RemoteClientNone = 0 << 4,
    RemoteClientUnknown = 1 << 4,
    RemoteClientNetworkDisconnect = 2 << 4,
};

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {
    [super viewDidLoad];
    
}

- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
    
    [self handleStatusWithState:RemoteServerUnknown | RemoteClientNetworkDisconnect];
    
}

- (void)touchesEnded:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
    
//    [self handleStatusWithState:RemoteServerNone | RemoteClientNone];
    
    [self handleStatusWithState:RemoteClientNone | RemoteServerNone];
}


- (void)handleStatusWithState:(NSUInteger)state{
    
    switch (state) {
        case RemoteServerNone | RemoteClientNone:
        {
            NSLog(@"都未知");
        }
            break;
            
        case RemoteServerNone | RemoteClientUnknown:
        {
            NSLog(@"客户端未知");
        }
            break;
            
        case RemoteServerUnknown | RemoteClientNetworkDisconnect:
        {
            NSLog(@"客户端网络状态未知");
        }
            break;
            
        default:
            break;
    }
}

- (void)didReceiveMemoryWarning {
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end