//创建一个基于AFHTTPSessionManager 的类
#import
#import "AFHTTPSessionManager.h"
@interfaceAFAppDotNetAPIClient :AFHTTPSessionManager
//创建单例,在需要网络判断的地方调用
+ (instancetype)sharedClient;
@end
#import"AFAppDotNetAPIClient.h"
//全局静态变量 是测试网络用到的网址
static NSString*const AFAppDotNetAPIBaseURLString =@"https://api.app.net/";
@implementationAFAppDotNetAPIClient
//实现单例方法
+ (instancetype)sharedClient {
staticAFAppDotNetAPIClient*_sharedClient =nil;
//用dispatch_once 函数 解决线程问题 防止多线程时被不同线程同时调用 类似加锁的功能
staticdispatch_once_tonceToken;
dispatch_once(&onceToken, ^{
_sharedClient = [[AFAppDotNetAPIClientalloc]initWithBaseURL:[NSURLURLWithString:AFAppDotNetAPIBaseURLString]];
_sharedClient.securityPolicy= [AFSecurityPolicypolicyWithPinningMode:AFSSLPinningModeNone];
//网络判断的内部实现 [_sharedClient.reachabilityManagersetReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatusstatus) {
switch(status) {
caseAFNetworkReachabilityStatusReachableViaWWAN:
NSLog(@"-------AFNetworkReachabilityStatusReachableViaWWAN------");
break;
caseAFNetworkReachabilityStatusReachableViaWiFi:
NSLog(@"-------AFNetworkReachabilityStatusReachableViaWiFi------");
break;
caseAFNetworkReachabilityStatusNotReachable:
NSLog(@"-------AFNetworkReachabilityStatusNotReachable------");
break;
default:
break;
}
}];
[_sharedClient.reachabilityManagerstartMonitoring];
});
return_sharedClient;
}
//用if判断网络状态 增加了自动提示---提示框
if(status ==
AFNetworkReachabilityStatusReachableViaWWAN) {
UIAlertView*alertView = [[UIAlertViewalloc]initWithTitle:@"温馨提示"message:@"目前3G网络状态良好"delegate:selfcancelButtonTitle:nilotherButtonTitles:nil,nil];
[alertViewshow];
alertView.cancelButtonIndex=1;
//让alertView自动取消这里的self是指shareClient
[selfperformSelector:@selector(dissAlertView:)withObject:alertViewafterDelay:1.0];
//WiFi
}elseif(status ==AFNetworkReachabilityStatusReachableViaWiFi){
UIAlertView*alertView = [[UIAlertViewalloc]initWithTitle:@"温馨提示"message:@"目前是WiFi网络"delegate:selfcancelButtonTitle:nil
otherButtonTitles:nil,nil];
[alertViewshow];
//让alertView自动取消
[selfperformSelector:@selector(dissAlertView:)withObject:alertViewafterDelay:1.0];
//无网络
}elseif(status ==AFNetworkReachabilityStatusNotReachable){
UIAlertView*alertView = [[UIAlertViewalloc]initWithTitle:@"温馨提示"message:@"无法找到网络"delegate:selfcancelButtonTitle:nilotherButtonTitles:nil,nil];
[alertViewshow];
[selfperformSelector:@selector(dissAlertView:)withObject:alertViewafterDelay:1.0];
}
}];
[shareClient.reachabilityManagerstartMonitoring];
});
returnshareClient;
}
//在单例里面 这个方法必须写为加号方法
因为在上面的网络判断中 我们在return 前就调用了这个方法,而调用时实例还没有产生,所以用减号方法会崩溃的 ;
//alertView自动消失的实现方法
+ (void)dissAlertView:(UIAlertView*)alertView
{
if(alertView) {
[alertViewdismissWithClickedButtonIndex:[alertViewcancelButtonIndex]animated:YES];
}
[alertViewrelease];
}