In iOS8.0.2, the settings are displayed in the General-> Keyboard section of the iOS settings application. However, an error in iOS does not allow reading these values.
The solution is to create a settings screen in your application and read / write settings to a shared container using [[NSUserDefaults alloc] initWithSuiteName:@"group.your.group.name"]
Please note that this solution requires the user full access to the keyboard settings, which is currently not very user-friendly.
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