//
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// SGNetObserver.m
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// SGNetObserverDemo
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//
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// Created by apple on 16/9/19.
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// Copyright © 2016年 iOSSinger. All rights reserved.
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//
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#import "SGNetObserver.h"
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#import "Reachability.h"
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#import "SimplePinger.h"
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NSString *SGReachabilityChangedNotification = @"SGNetworkReachabilityChangedNotification";
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@interface SGNetObserver()
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@property (nonatomic,copy) NSString *host;
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@property (nonatomic,strong) Reachability *hostReachability;
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@property (nonatomic,strong) SimplePinger *pinger;
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@end
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@implementation SGNetObserver
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#pragma mark - 初始化
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+ (instancetype)defultObsever{
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SGNetObserver *obsever = [[self alloc] init];
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obsever.host = @"www.baidu.com";
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return obsever;
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}
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+ (instancetype)observerWithHost:(NSString *)host{
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SGNetObserver *obsever = [[self alloc] init];
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obsever.host = host;
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return obsever;
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}
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- (instancetype)init{
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if (self = [super init]) {
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_networkStatus = -1;
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_failureTimes = 2;
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_interval = 1.0;
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}
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return self;
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}
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- (void)dealloc{
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[self.hostReachability stopNotifier];
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[self.pinger stopNotifier];
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}
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#pragma mark - function
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- (void)startNotifier{
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[self.hostReachability startNotifier];
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[self.pinger startNotifier];
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}
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- (void)stopNotifier{
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[self.hostReachability stopNotifier];
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[self.pinger stopNotifier];
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}
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#pragma mark - delegate
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- (void)networkStatusDidChanged{
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//获取两种方法得到的联网状态,并转为BOOL值
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BOOL status1 = [self.hostReachability currentReachabilityStatus];
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BOOL status2 = self.pinger.reachable;
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//综合判断网络,判断原则:Reachability -> pinger
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if (status1 && status2) {//有网
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self.networkStatus = self.netWorkDetailStatus;
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}else{//无网
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self.networkStatus = SGNetworkStatusNone;
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}
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if (!status2 && status1) {
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[[NSNotificationCenter defaultCenter] postNotificationName:@"networkError" object:nil];
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}
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}
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#pragma mark - setter
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- (void)setNetworkStatus:(SGNetworkStatus)networkStatus{
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if (_networkStatus != networkStatus) {
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_networkStatus = networkStatus;
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NSLog(@"网络状态-----%@",self.networkDict[@(networkStatus)]);
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//有代理
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if(self.delegate){//调用代理
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if ([self.delegate respondsToSelector:@selector(observer:host:networkStatusDidChanged:)]) {
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[self.delegate observer:self host:self.host networkStatusDidChanged:networkStatus];
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}
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}else{//发送全局通知
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NSDictionary *info = @{@"status" : @(networkStatus),
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@"host" : self.host };
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[[NSNotificationCenter defaultCenter] postNotificationName:SGReachabilityChangedNotification object:nil userInfo:info];
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}
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}
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}
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#pragma mark - getter
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- (Reachability *)hostReachability{
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if (_hostReachability == nil) {
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_hostReachability = [Reachability reachabilityWithHostName:self.host];
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__weak typeof(self) weakSelf = self;
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[_hostReachability setNetworkStatusDidChanged:^{
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[weakSelf networkStatusDidChanged];
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}];
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}
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return _hostReachability;
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}
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- (SimplePinger *)pinger{
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if (_pinger == nil) {
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_pinger = [SimplePinger simplePingerWithHostName:self.host];
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_pinger.supportIPv4 = self.supportIPv4;
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_pinger.supportIPv6 = self.supportIPv6;
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_pinger.interval = self.interval;
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_pinger.failureTimes = self.failureTimes;
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__weak typeof(self) weakSelf = self;
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[_pinger setNetworkStatusDidChanged:^{
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[weakSelf networkStatusDidChanged];
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}];
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}
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return _pinger;
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}
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#pragma mark - tools
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- (SGNetworkStatus)netWorkDetailStatus{
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UIApplication *app = [UIApplication sharedApplication];
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UIView *statusBar = [app valueForKeyPath:@"statusBar"];
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UIView *foregroundView = [statusBar valueForKeyPath:@"foregroundView"];
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UIView *networkView = nil;
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for (UIView *childView in foregroundView.subviews) {
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if ([childView isKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {
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networkView = childView;
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}
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}
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SGNetworkStatus status = SGNetworkStatusNone;
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if (networkView) {
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int netType = [[networkView valueForKeyPath:@"dataNetworkType"]intValue];
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switch (netType) {
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case 0:
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status = SGNetworkStatusNone;
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break;
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case 1://实际上是2G
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status = SGNetworkStatusUkonow;
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break;
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case 2:
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status = SGNetworkStatus3G;
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break;
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case 3:
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status = SGNetworkStatus4G;
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break;
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case 5:
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status = SGNetworkStatusWifi;
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break;
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default:
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status = SGNetworkStatusUkonow;
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break;
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}
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}
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return status;
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}
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- (NSDictionary *)networkDict{
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return @{
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@(SGNetworkStatusNone) : @"无网络",
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@(SGNetworkStatusUkonow) : @"未知网络",
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@(SGNetworkStatus3G) : @"3G网络",
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@(SGNetworkStatus4G) : @"4G网络",
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@(SGNetworkStatusWifi) : @"WIFI网络",
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};
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}
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@end
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