我使用以下代码调用方法
APIRequest *apiRequest = [[APIRequest alloc]init];
apiRequest.pendingShipmentDetails ;
我收到以下警告，
这是什么意思？属性访问结果未使用的getter不应该用于side 效果
并且该方法同时被调用两次
以下是我的方法，
-(void)pendingShipmentDetails
{
keyChain = [[KeyChainItemWrapper alloc] initWithIdentifier:@"LoginController" accessGroup:nil];
NSString *username = [keyChain objectForKey:(__bridge id)(kSecAttrLabel)];
NSString *bodyString = [NSString stringWithFormat:@"{\"method\":\"pending_shipment_details\",\"data\":{\"username\":\"%@\"}}",username];
NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:[NSURL URLWithString:@"url"]];
NSData *postData = [bodyString dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
[request setHTTPBody:postData];
[request setHTTPMethod:@"POST"];
NSString *postLength = [NSString stringWithFormat:@"%lu", (unsigned long)[postData length]];
[request setValue:postLength forHTTPHeaderField:@"Content-Length"];
NSOperationQueue *queue = [[NSOperationQueue alloc] init];
[NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:^(NSURLResponse *response, NSData *data, NSError *connectionError)
{
if ([data length] > 0 && connectionError == nil)
{
[self receivedPendingShipmentDetailsData:data];
NSString* pendingResponse = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];
NSData *jsonData = [pendingResponse dataUsingEncoding:NSUTF8StringEncoding];
NSDictionary *jsonDic = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingAllowFragments error:nil];
NSDictionary *valueDict = [jsonDic objectForKey:@"value"];
NSArray *details = [valueDict objectForKey:@"details"];
NSMutableArray* arrayList = [[NSMutableArray alloc] init];
for (NSDictionary *response in details) {
NSString *invoiceNo = [response valueForKey:@"invoice_no"];
NSString *shipmentNumber = [response valueForKey:@"shipment_no"];
NSString *invoiceDate = [response valueForKey:@"invoice_date"];
NSString *proformaInvoiceNumber = [response valueForKey:@"proforma_invoice_no"];
NSString *proformaInvoiceDate = [response valueForKey:@"proforma_invoice_date"];
NSString *plannedShipmentDates = [response valueForKey:@"planned_shipment_dates"];
NSString *pointOfContact =[[response objectForKey:@"point_of_contact"] valueForKey:@"empid"];
NSString *pendingStatus = [response valueForKey:@"status"];
NSDictionary *productName = [response valueForKey:@"products"];
NSDictionary *quantity = [response valueForKey:@"quantity"];
NSDictionary *rate = [response valueForKey:@"rate"];
NSDictionary *amount = [response valueForKey:@"amount"];
NSDictionary *productImages = [response valueForKey:@"product_image"];
NSDictionary *point_of_contact = [response valueForKey:@"point_of_contact"];
NSString *qty;
NSString *rte;
NSString *img;
NSString *address;
NSString *name;
NSString *amt;
for (int i = 0; i < [productName count]; i++) {
// NSLog(@"product name %@",[productName valueForKey:[NSString stringWithFormat:@"%d",i ]]);
name = [productName valueForKey:[NSString stringWithFormat:@"%d",i ]];
}
for (int i = 0; i < [quantity count]; i++) {
// NSLog(@"quantity %@",[quantity valueForKey:[NSString stringWithFormat:@"%d",i ]]);
qty = [quantity valueForKey:[NSString stringWithFormat:@"%d",i ]];
}
for (int i = 0; i < [rate count]; i++) {
// NSLog(@"rate %@",[rate valueForKey:[NSString stringWithFormat:@"%d",i ]]);
rte = [rate valueForKey:[NSString stringWithFormat:@"%d",i ]];
}
for (int i = 0; i < [amount count]; i++) {
// NSLog(@"amount %@",[amount valueForKey:[NSString stringWithFormat:@"%d",i ]]);
amt = [amount valueForKey:[NSString stringWithFormat:@"%d",i ]];
}
for (int i = 0; i < [productImages count]; i++) {
// NSLog(@"product image %@",[productImages valueForKey:[NSString stringWithFormat:@"%d",i ]]);
img = [productImages valueForKey:[NSString stringWithFormat:@"%d",i ]];
}
for (int i = 0; i < [point_of_contact count]; i++) {
// NSLog(@"pt of ct %@",[point_of_contact valueForKey:[NSString stringWithFormat:@"empid" ]]);
address = [point_of_contact valueForKey:[NSString stringWithFormat:@"empid" ]];
}
NSManagedObjectContext *context = [self managedObjectContext];
//update
if((self.pendingShipmentDAO) ) {
NSLog(@"update");
[self.pendingShipmentDAO setValue:shipmentNumber forKey:@"shipmentno"];
[self.pendingShipmentDAO setValue:proformaInvoiceNumber forKey:@"proforma_invoice_no"];
[self.pendingShipmentDAO setValue:proformaInvoiceDate forKey:@"proforma_invoice_date"];
[self.pendingShipmentDAO setValue:invoiceNo forKey:@"invoice_no"];
[self.pendingShipmentDAO setValue:invoiceDate forKey:@"invoice_date"];
[self.pendingShipmentDAO setValue:plannedShipmentDates forKey:@"planned_shipment_date"];
[self.pendingShipmentDAO setValue:address forKey:@"point_of_contact"];
[self.pendingShipmentDAO setValue:address forKey:@"empid"];
[self.pendingShipmentDAO setValue:name forKey:@"products"];
[self.pendingShipmentDAO setValue:qty forKey:@"quantity"];
[self.pendingShipmentDAO setValue:rte forKey:@"rate"];
[self.pendingShipmentDAO setValue:amt forKey:@"amount"];
[self.pendingShipmentDAO setValue:img forKey:@"product_image"];
[self.pendingShipmentDAO setValue:pendingStatus forKey:@"status"];
}else {
NSLog(@"create");
NSManagedObject *pendingShipment = [NSEntityDescription insertNewObjectForEntityForName:@"PendingShipmentDetails" inManagedObjectContext:context];
// [self deleteAllPreviousData];
[pendingShipment setValue:shipmentNumber forKey:@"shipmentno"];
[pendingShipment setValue:proformaInvoiceNumber forKey:@"proforma_invoice_no"];
[pendingShipment setValue:proformaInvoiceDate forKey:@"proforma_invoice_date"];
[pendingShipment setValue:invoiceNo forKey:@"invoice_no"];
[pendingShipment setValue:invoiceDate forKey:@"invoice_date"];
[pendingShipment setValue:plannedShipmentDates forKey:@"planned_shipment_date"];
[pendingShipment setValue:address forKey:@"point_of_contact"];
[pendingShipment setValue:address forKey:@"empid"];
[pendingShipment setValue:name forKey:@"products"];
[pendingShipment setValue:qty forKey:@"quantity"];
[pendingShipment setValue:rte forKey:@"rate"];
[pendingShipment setValue:amt forKey:@"amount"];
[pendingShipment setValue:img forKey:@"product_image"];
[pendingShipment setValue:pendingStatus forKey:@"status"];
}
}
}
else if ([data length] == 0 && connectionError == nil)
{
[self emptyReply];
}
else if (connectionError != nil && connectionError.code == NSURLErrorTimedOut)
{
[self timedOut];
}
else if (connectionError != nil)
{
[self downloadError:connectionError];
}
}];
}
答案 0 :(得分：1)
点符号用于属性（获取或设置）它们。所以这里编译器理解你想要调用pendingShipmentDetails的getter而不是这种情况。您必须使用[]来调用方法。将apiRequest.pendingShipmentDetails替换为[apiRequest pendingShipmentDetails]，警告就会消失。