Swift 3核心数据 - init（context :)仅适用于iOS 10或更高版本

Question

My code is as follows:

    let managedObjectContext = (UIApplication.shared.delegate as! AppDelegate).managedObjectContext
    let feed = Sources(context: managedObjectContext)

I am receiving the error "init(context:) is only available in iOS 10. What is the way I can do this in the pre-iOS 10 method?

Thanks!

Answer 1

You can use following method to compatible with all versions:

let entity = NSEntityDescription.entity(forEntityName: "YourEntityName", in: managedObjectContext)!
let feed = Source(entity: entity, insertInto: managedObjectContext)

It is tested under Swift 3.1.