Question

第二次映射响应时，RestKit会在不释放内存的情况下继续分配内存。

示例

JSON：

// http://example.com/api/shop/
{
    {
       "id": 1, 
       "title": "some shop",
       "items": [
           {
              "id": 1,
              "name": "some item"
           },
           ... 
           {
              "id": 10000,
              "name": "some other item"
           }          
       ]
    }

 }

响应映射/描述符

let itemMapping = RKEntityMapping(forEntityForName: "Item", inManagedObjectStore: RKManagedObjectStore.defaultStore())
itemMapping.addAttributeMappingsFromDictionary([
        "title":"title",
        "id": "iID"
])
itemMapping.identificationAttributes = ["iID"]

let shopMapping = RKEntityMapping(forEntityForName: "Shop", inManagedObjectStore: RKManagedObjectStore.defaultStore())
shopMapping.addAttributeMappingsFromDictionary([
        "title":"title",
        "id": "sID"
])
shopMapping.identificationAttributes = ["sID"]

shopMapping.addPropertyMapping(RKRelationshipMapping(fromKeyPath: "items", toKeyPath: "items", withMapping: itemMapping))

let shopResponseDescriptor = RKResponseDescriptor(mapping: shopMapping, method: RKRequestMethod.Any, pathPattern: "/api/shop/", keyPath: nil, statusCodes: RKStatusCodeIndexSetForClass(RKStatusCodeClass.Successful))



RKObjectManager.sharedManager().addResponseDescriptorsFromArray(
    [
        shopResponseDescriptor
    ]
)

这会一直分配内存，直到应用程序崩溃。

使用乐器我能够确定应用程序在分配超过650mb时崩溃，主要包括：

__NSDictionary，大小：226mb，负责的来电者：[NSManagedObject dictionaryWithValuesForKeys:]
__NSSet，大小：168mb，负责的来电者： - [RKManagedObjectMappingOperationDataSource mappingOperation:targetObjectForRepresentation:withMapping:inRelationship:]
__NSArray大小：112mb，负责的来电者：-[RKManagedObjectMappingOperationDataSource mappingOperation:targetObjectForRepresentation:withMapping:inRelationship:]

即使响应通常不会包含已存储在设备上的那么多对象，以防许多对象发生更改，但可能会发生这样的事情并使应用程序崩溃。有没有人遇到这个问题并且有解决方法吗？

重新获取条目时的RestKit内存警告

0 个答案: