Using non NS_ENUM objective-C enum in swift

Question

I am using the wahoo fitness API and it defines the following objective-C enum:

typedef enum
{
    /** No active connection. */
    WF_SENSOR_CONNECTION_STAT         


        

Answer 1

The workaround to use .value to get the underlying integer doesn't work anymore as of Beta 4, as you said.

Unfortunately an enum is not transferrable to Swift from Objective-C, it needs to be an NS_ENUM.

I have the same setup as you in a project where I need the enum from an Objective-C framework and use it in Swift.

The workaround I did was to create an Objective-C category that contains an NS_ENUM and there I transfer the values from the framework enum to my own NS_ENUM.

Import the category in your bridging header and you should be able to use the enum as you normally would do.

Something like this:

typedef NS_ENUM(NSUInteger, ConnectionStatus) {
    ConnectionStatusIdle
}

- (ConnectionStatus)connectionStatus {
    if [self getConnectionStatus] == WF_SENSOR_CONNECTION_STATUS_IDLE {
        return ConnectionStatusIdle
    }
}

Then you should be able to use it like this:

switch myObject.connectionStatus() {
    case .Idle:
        // do something
        break
}