How to access NSMutableArray from Objective-C in Swift

Question

I created an array called events in Objective-C, and I want to be able to add events to the array in Swift. Here is my declaration of the property in Objective-C:

@property (nonatomic, strong) NSMutableArray *events;

Here is my usage of the array in the Swift file.

var objectC = DPCalendarTestStoryboardViewController()

@IBAction func addMedicine(sender: AnyObject) {
    objectC.events = [].mutableCopy
    var event: DPCalendarEvent = DPCalendarEvent(title: nameText.text, startTime: startDatePicker.date, endTime: startDatePicker.date, colorIndex: 2)
    objectC.events.append(event)
}

Here is the error message:

Value of type 'DPCalendarTestStoryboardViewController' has no member 'events'

Answer 1

Objective-C NSMutableArray and Swift Array are different. You can still use NSMutableArray and all its methods in Swift.

Replace Code with

@IBAction func addMedicine(sender: AnyObject) {
    objectC.events = NSMutableArray()
    var event: DPCalendarEvent = DPCalendarEvent(title: nameText.text, startTime: startDatePicker.date, endTime: startDatePicker.date, colorIndex: 2)
    objectC.events.addObject(event)
}

and also you need to declare events property in .h file and

instantiate your DPCalendarTestStoryboardViewController viewController using storyboard reference

var objectC =  UIStoryboard(name: "storyboardNameHere", bundle: nil).instantiateViewControllerWithIdentifier("viewControllerIdentifier") as? DPCalendarTestStoryboardViewController