iOS-網絡檢測的幾種方法
1.AFN框架中的：AFNetworkReachabilityManager
//AFN判斷網絡
-(void)getInternetStatue{
// 1.獲得網絡監控的管理者
AFNetworkReachabilityManager *mgr = [AFNetworkReachabilityManagersharedManager];
// 2.設置網絡狀態改變後的處理
[mgr setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatusstatus) {
// 當網絡狀態改變了,就會調用這個block
switch (status) {
caseAFNetworkReachabilityStatusUnknown://未知網絡
NSLog(@"未知網絡");
break;
caseAFNetworkReachabilityStatusNotReachable://沒有網絡(斷網)
NSLog(@"沒有網絡(斷網)");
break;
caseAFNetworkReachabilityStatusReachableViaWWAN://手機自帶網絡
NSLog(@"手機自帶網絡");
break;
caseAFNetworkReachabilityStatusReachableViaWiFi:// WIFI
NSLog(@"WIFI");
break;
}
if(status ==AFNetworkReachabilityStatusReachableViaWWAN || status ==AFNetworkReachabilityStatusReachableViaWiFi)
{
self.wifiStatue=@"有網絡";
NSLog(@"有網");
}else
{
self.wifiStatue=@"沒網絡";
NSLog(@"沒有網");
UIAlertView *alert = [[UIAlertViewalloc]initWithTitle:@"網絡失去連接"message:nildelegate:selfcancelButtonTitle:@"取消"otherButtonTitles:nil,nil];
alert.delegate =self;
[alert show];
}
}];
// 3.開始監控
[mgr startMonitoring];
}
========= 2.蘋果自帶reachability =========
1、代表網絡狀態的枚舉：
typedef enum : NSInteger {
NotReachable = 0, //無網絡可用
ReachableViaWiFi, //WiFi連接
ReachableViaWWAN //無限廣域網連接
} NetworkStatus;
2、下面是相關接口和註釋
/*! * 用於檢測網絡請求是否可以到達指定的主機名 */ + (instancetype)reachabilityWithHostName:(NSString *)hostName; /*! * 用於檢測網絡請求是否可以到達給定的ip地址 */ + (instancetype)reachabilityWithAddress:(const struct sockaddr_in *)hostAddress; /*! * 檢查默認的路由器是否有效. 用於不連接到特定主機的應用. */ + (instancetype)reachabilityForInternetConnection; /*! * 檢測本地的WiFi連接是否有效 */ + (instancetype)reachabilityForLocalWiFi; /*! * 開始監聽在當前的runloop中的通知. */ - (BOOL)startNotifier; - (void)stopNotifier; //獲取網絡狀態 - (NetworkStatus)currentReachabilityStatus; /*! * 連接需求 */ - (BOOL)connectionRequired;
3、網絡連接狀態改變時的通知標識
NSString *kReachabilityChangedNotification = @"kNetworkReachabilityChangedNotification";
//需要把該工程中的Reachability.h 和 Reachability.m 拷貝到你的工程中，同時需要把SystemConfiguration.framework 添加到工程中，
//創建Reachability
Reachability *reach = [Reachability reachabilityForInternetConnection];
reach = [Reachability reachabilityWithHostName:@"www.baidu.com"] ;
// 開始監控網絡(一旦網絡狀態發生改變, 就會發出通知kReachabilityChangedNotification)
[reach startNotifier];
//開啟通知---方式一：
// [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(networkStateChange:) name:kReachabilityChangedNotification object:nil];
//// 處理網絡狀態改變
- (void)networkStateChange:(NSNotification *)note{
Reachability * reach = [noti object];
NetworkStatus status = [reach currentReachabilityStatus];
// 3.判斷網絡狀態
if (status== NotReachable) {
NSLog(@"沒網");
} else if (status==ReachableViaWWAN) {
NSLog(@"使用手機自帶網絡進行上網");
} else if(status==ReachableViaWiFi){
NSLog(@"通過wifi");
}}
註冊通知----方式二：
[[NSNotificationCenter defaultCenter] addObserver:self
selector:@selector(reachabilityChanged:)
name:kReachabilityChangedNotification
object:nil];//網絡狀態監控
- (void)reachabilityChanged:(NSNotification *)noti {
Reachability * reach = [noti object];
if([reach isReachable]) {
[self setMBProgressWithNumTip:@"網絡已連接"];
NSLog(@"網絡已經連接");
[LYCommanManager sharedManager].isreachable=[reachisReachable];
[[NSNotificationCenterdefaultCenter]postNotificationName:@"startloading" object:nil];//發送通知開始加載網頁
} else {
NSLog(@"網絡未連接");
[self setMBProgressWithNumTip:@"網絡未連接"];
[LYCommanManager sharedManager].isreachable=[reachisReachable];
[[NSNotificationCenterdefaultCenter]postNotificationName:@"endloading" object:nil];//發送通知結束加載
}
}
-(void)viewdidoad{
if([LYCommanManager sharedManager].isreachable){
[self setMBProgressWithNum:@"loading..."];
NSLog(@"當前是有網de");
}else {
[self setMBProgressWithNumTip:@"無網絡連接"];
NSLog(@"當前沒有網絡");
}
[[NSNotificationCenter defaultCenter]addObserver:selfselector:@selector(finishLoading) name:@"endloading" object:nil];
[[NSNotificationCenter defaultCenter]addObserver:selfselector:@selector(startLoading) name:@"startloading"object:nil];
}
//聯網後重新加載網頁
-(void)startLoading{
[self setTrainTicketWithMKweb];
}
//結束加載提示
-(void)finishLoading{
[MBProgressHUD hideHUDForView:self.view animated:YES];
}
=========3.通過狀態欄判斷網絡=========
//從狀態欄中獲取網絡類型，代碼如下：
-(NSString *)getNetWorkStates{
UIApplication *app = [UIApplicationsharedApplication];
NSArray *children = [[[appvalueForKeyPath:@"statusBar"]valueForKeyPath:@"foregroundView"]subviews];
NSLog(@"---%@---",children);
NSString *state = [[NSStringalloc]init];
NSLog(@"--空字符串0-%@",state);
int netType =0;
//獲取到網絡返回碼
for (id childin children) {
if([childisKindOfClass:NSClassFromString(@"UIStatusBarDataNetworkItemView")]) {
//獲取到狀態欄
netType = [[child valueForKeyPath:@"dataNetworkType"]intValue];
NSLog(@"netType---%d",netType);
switch (netType) {
case 0:
state = @"無網絡";
//無網模式
break;
case 1:
state = @"2G";
break;
case 2:
state = @"3G";
break;
case 3:
state = @"4G";
break;
case 5:
{
state = @"wifi";
NSLog(@"5");
break;
default:
break;
}
}
}
//根據狀態選擇
}
return state;
}
iOS-網絡檢測的幾種方法