Items in File provider extension for ios 11

问题

I have an app with file provider extension in it. I tried giving support to the new file app with the ios 11 using this link

I did what is instructed in this but no item is getting displayed. I have added this NSExtensionFileProviderSupportsEnumeration = YES in my plist as well.

ProviderEnumerator is my NSFileProviderEnumerator class where ProviderItem is a NSFileProviderItem. inside my enumerator class I have this,

func enumerateItems(for observer: NSFileProviderEnumerationObserver, startingAt page: NSFileProviderPage) {        
    observer.didEnumerate([ProviderItem(name: "raghav", type: "public.folder", identifier: "12334444", parentId: "-1"), ProviderItem(name: "panth", type: "public.folder", identifier: "12334444", parentId: "-1")])        
    var myInt = 100
    let myIntData = Data(bytes: &myInt, count: MemoryLayout.size(ofValue: myInt))
    observer.finishEnumerating(upTo: NSFileProviderPage(rawValue: myIntData))        
}

observer.didEnumerate() gets called but the view is not getting populated

Am I missing something !!

回答1:

Finally I figured out the problem here, that if we want to show the files in the root page the NSFileProviderItem requires it's parent_id as NSFileProviderItemIdentifier.rootContainer. Setting this solved my problem

来源：https://stackoverflow.com/questions/46563336/items-in-file-provider-extension-for-ios-11