How to set default realm path to App Groups directory

问题

I am trying to set the default Realm path to App Groups directory.

let directory: NSURL = NSFileManager.defaultManager().containerURLForSecurityApplicationGroupIdentifier("groups.prasanna.appName")!  
RLMRealm.setDefaultRealmPath(directory.absoluteString!)  
println(RLMRealm.defaultRealmPath())

The app crashes with the following error

Terminating app due to uncaught exception 'RLMException', reason: 'open() failed: Operation not permitted'

How do I fix this issue?

回答1:

the default realm path you're setting is your container directory. You'll have to append a file name for this to work:

let directory: NSURL = NSFileManager.defaultManager().containerURLForSecurityApplicationGroupIdentifier("groups.prasanna.appName")!
let realmPath = directory.path!.stringByAppendingPathComponent("db.realm")
RLMRealm.setDefaultRealmPath(realmPath)
println(RLMRealm.defaultRealmPath()) // should be realmPath

回答2:

RLMRealm.setDefaultRealmPath() removed at 0.97 version, you should use this : Tim answer

var config = RLMRealmConfiguration.defaultConfiguration()
config.path = realmPath
RLMRealmConfiguration.setDefaultConfiguration(config)

回答3:

It has changed again, now:

let configuration = RLMRealmConfiguration.default()
configuration.pathOnDisk = realmPath
RLMRealmConfiguration.setDefault(configuration)

回答4:

In Xamarin, you can do somethings like this to change default configuration path of Realm from Document to Library directory for Xamarin iOS app:

// Get path of Library directory first

var directoryLib = Environment.GetFolderPath(Environment.SpecialFolder.Resources);

//Configure your own path

var myOwnRealmPath = Path.Combine(directoryLib, "boards.realm");
RealmConfiguration.GetPathToRealm(myOwnRealmPath);

// Change default configuration path to your own (Here I have changed to Library directory)

RealmConfiguration.DefaultConfiguration = new RealmConfiguration(myOwnRealmPath);

//Get Realm Instance from your own designed path

_realm = Realm.GetInstance(RealmConfiguration.DefaultConfiguration);

来源：https://stackoverflow.com/questions/27355557/how-to-set-default-realm-path-to-app-groups-directory

标签

cocoa

swift

realm