封装改了好多次,一直没更新这里
新增 -取消请求
-网络监听
-https证书
1.手机网络监听
苹果官方有提供一个 Reachablity 来检测用户网络情况, 但是项目中如果导入 AFNetworking 的话,就没必要再用 Reachablity 了.
pragma mark - 开启手机网络的监听
-
(void)startNotificationNetworkStatus
{
[NetWork shareInstance].currentNetworkStatus = NO;AFNetworkReachabilityManager *networkStatusManage = [AFNetworkReachabilityManager sharedManager];
[networkStatusManage setReachabilityStatusChangeBlock:^(AFNetworkReachabilityStatus status) {
switch (status) {
case AFNetworkReachabilityStatusUnknown:
NSLog(@"未识别的网络");
[NetWork shareInstance].currentNetworkStatus = NO;
[NetWork shareInstance].netStatus = NetworkStatusNoNet;
break;
case AFNetworkReachabilityStatusNotReachable:
NSLog(@"网络连接已断开");
[NetWork shareInstance].currentNetworkStatus = NO;
[NetWork shareInstance].netStatus = NetworkStatusNoNet;
break;
case AFNetworkReachabilityStatusReachableViaWWAN:
NSLog(@"当前网络为移动网络");
[NetWork shareInstance].currentNetworkStatus = YES;
[NetWork shareInstance].netStatus = NetworkStatusMobile;
break;
case AFNetworkReachabilityStatusReachableViaWiFi:
NSLog(@"当前网络为Wifi网络");
[NetWork shareInstance].currentNetworkStatus = YES;
[NetWork shareInstance].netStatus = NetworkStatusWifi;
break;
default:
break;
}
}];
[networkStatusManage startMonitoring];
}
pragma mark - 返回当前网络是否可用
- (BOOL)getCurrentNetworkStatus
{
return [NetWork shareInstance].currentNetworkStatus;
}
pragma mark - 返回当前的网络状态
- (NetworkStatus)returnCurrentNetworkStatus
{
return [NetWork shareInstance].netStatus;
}
2.取消请求
在NSURLSession开发中,所有的任务都是由session发起的
AFNetworking 3.0 之后,都是基于 NSURLSession
AF中调用请求 会返回一个 NSURLSessionDataTask 对象
可以先把这个对象添加到队列,当然,需要先创建一个队列管理的容器
pragma mark - 队列管理容器
- (NSMutableDictionary *)taskQueue
{
NSMutableDictionary * taskDic = objc_getAssociatedObject(self, @selector(addTask:));
if (!taskDic) {
taskDic = @{}.mutableCopy;
objc_setAssociatedObject(self, @selector(addTask:), taskDic, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}
return taskDic;
}
pragma mark - 添加队列
- (void)addTask:(NSURLSessionDataTask *)task
{
NSMutableDictionary * taskQueue = [self taskQueue];
[taskQueue setObject:task forKey:@(task.taskIdentifier)];
}
请求返回结果后,需要从队列移除.删除的时候,最好先判断是否存在队列
pragma mark - 判断有没有执行中的队列
- (BOOL)isRequesting
{
NSMutableDictionary * taskDic = objc_getAssociatedObject(self, @selector(addTask:));
if (taskDic.allValues.count > 0) {
return YES;
}
return NO;
}
pragma mark - 删除队列
- (void)removeTask:(NSURLSessionDataTask *)task
{
if ([self isRequesting]) {
NSMutableDictionary * taskQueue = [self taskQueue];
[taskQueue removeObjectForKey:@(task.taskIdentifier)];
}
}
pragma mark - 取消请求
-
(void)cancelRequest
{
if ([self isRequesting]) {
NSMutableDictionary * taskQueue = [self taskQueue];
[taskQueue enumerateKeysAndObjectsUsingBlock:^(id _Nonnull key, id _Nonnull obj, BOOL * _Nonnull stop) {
if (((NSURLSessionDataTask *)obj).state != NSURLSessionTaskStateCompleted ) {
[((NSURLSessionDataTask *)obj) cancel];
}
}];}
}
3.苹果要求必须https,需要自签名证书
其实用AF的话很简单
pragma mark - 设置证书
- (AFSecurityPolicy*)customSecurityPolicy
{
NSString *cerPath = [[NSBundle mainBundle] pathForResource:@"证书名" ofType:@"cer"];
NSData *certData = [NSData dataWithContentsOfFile:cerPath];
AFSecurityPolicy *securityPolicy = [AFSecurityPolicy policyWithPinningMode:AFSSLPinningModeCertificate];
securityPolicy.allowInvalidCertificates = YES;
securityPolicy.validatesDomainName = NO;
securityPolicy.pinnedCertificates = [[NSSet alloc] initWithObjects:certData,nil];
return securityPolicy;
}
