coredata tag

8 questions

1 answers
353 views
0

View attribute in CoreData

With CoreDataI'd like to display adata in the list with Entity as AData and attribute as adata, but I can't find items.adata because the initial value is empty.says items.adata?But it will come out.Wh...

coredata

1 years ago

1 answers
124 views
0

Unrecognized selector sent to instance when calling NSManagedObject subclass self-made method

Xcode Version 8.1(8B62) DeploymentTarget iOS 8.4We are creating a process to add data to Core Data.The Xcode feature automatically generated subclasses and added self-made methods.//Media+CoreDataClas...

xcode objective-c coredata

2 years ago

2 answers
94 views
0

Please tell me about generating fetch conditions for Float values.

How do you generate fetch conditions for Float values?The condition setting for the Ingteger value yielded the expected result, but the condition setting for the Float value did not yield the expected...

swift swift3 coredata

2 years ago

1 answers
114 views
0

Swift4 Xcode 10.1beta3 NSFetchedResultsController does not recognize UITableView in the middle of the layout

I want to manage TableView data sources in the middle of the layout in the UIViewController with the FetchedResultsController, but it does not recognize TableView (see error message below).2018-10-25 ...

ios swift4 coredata

2 years ago

1 answers
116 views
0

When I built the application that was using CoreData on Swift3 with Swift4, Check dependencies came out.

When I built the application that used CoreData in swift3 with swift4, the following check dependencies came outThe use of Swift3 @objc reference in Swift4 mode is decremented. Please address decremen...

swift3 swift4 coredata

2 years ago

1 answers
94 views
0

Please tell me how to search for dates on CoreData's NSPredicate.

For example, if you create an entity called Data in CoreData, you can use Suppose you create Type:Date Attribute, day in it.And when I tried to pull the day for a particular date (I will ignore the ti...

swift coredata

2 years ago

1 answers
101 views
0

I want to do sectioning when displaying table views based on NSSet.

This is my first time to ask a question.It may be difficult to read, but please forgive me.CoreData is trying to create a two-tier table view.The data models are as follows:·Main class　Attribute Name,...

ios objective-c uitableview coredata

2 years ago

1 answers
101 views
0

NSPredicate with CoreData, which can be retrieved with CONTAINS, but cannot be retrieved in any other way.

I saved CoreData under the entity name Story.The contents are only attributes, and This is the configuration.Use NSPredicate CONTAINS to do thisNSFetchRequest* request = [NSFetchRequest fetchRequestWi...

objective-c coredata

2 years ago

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