Reachability 使用

直接上代码 (希望大家能提出建议)

// .h 文件
#import <Foundation/Foundation.h>
typedef NS_ENUM(NSInteger, NetWorkStatusType) {
    network_status_wifi,    // wifi
    network_status_wwan,    // 蜂窝移动网络
    network_status_none     // 无网络
};

typedef void(^netWorkBlock)(NetWorkStatusType type);

@interface SXReachbilityHelper : NSObject
// 是否有网络
+ (BOOL)isReachbility;
// 获取网络类型
+ (void)reachbilityStatus:(netWorkBlock)completion;
// 网络状态监听
+ (void)starNetWorkStatsuNotifactionWithTarget:(id)target;

@end

// .m文件
#import "SXReachbilityHelper.h"
#import <Reachability/Reachability.h>

@implementation SXReachbilityHelper

+ (BOOL)isReachbility {
    Reachability *reachability = [Reachability reachabilityForInternetConnection];
    BOOL flag = YES;
    switch (reachability.currentReachabilityStatus) {
        case NotReachable:
            flag = NO;
            break;
        case ReachableViaWiFi:
            flag = YES;
            break;
        case ReachableViaWWAN:
            flag = YES;
            break;
    }
    return flag;
}

+ (void)reachbilityStatus:(netWorkBlock)completion {
    Reachability *reachability = [Reachability reachabilityForInternetConnection];
    switch (reachability.currentReachabilityStatus) {
        case NotReachable:
            completion(network_status_none);
            break;
        case ReachableViaWiFi:
            completion(network_status_wifi);
            break;
        case ReachableViaWWAN:
            completion(network_status_wwan);
            break;
    }
}

// 网络状态监听    target 可以指定 任意对象    方法的实现在相应对象
+ (void)starNetWorkStatsuNotifactionWithTarget:(id)target {
    // Allocate a reachability object
    Reachability* reach = [Reachability reachabilityWithHostname:@"www.google.com"];
    
    // Tell the reachability that we DON'T want to be reachable on 3G/EDGE/CDMA
    reach.reachableOnWWAN = NO;
    
    // Here we set up a NSNotification observer. The Reachability that caused the notification
    // is passed in the object parameter
    [[NSNotificationCenter defaultCenter] addObserver:target
                                             selector:@selector(reachabilityChanged:)
                                                 name:kReachabilityChangedNotification
                                               object:nil];
    
    [reach startNotifier];
}


@end