How can I add the "Continuation" type to a login function in Java if I have already created it as a Kotlin suspend function?

edit

If you have already created the login function as a Kotlin suspend function and want to add the "Continuation" type to it, you can do so by modifying the function signature in the following way:

From:

suspend fun login(username: String, password: String): Boolean {
    ...
}

To:

suspend fun login(username: String, password: String, continuation: Continuation<Boolean>) {
    ...
}

This will add an additional parameter to the function which is of type "Continuation<boolean>". The continuation can be used to resume the function execution after it has been suspended due to a suspend call. You can then use the "continuation.resume(value)" function to pass the result of the login operation.

Here's an example implementation:

suspend fun login(username: String, password: String, continuation: Continuation<Boolean>) {
    // Perform login operation
    val isLoggedIn = performLogin(username, password)

    // Resume the function with the login result
    continuation.resume(isLoggedIn)
}

// Example usage
runBlocking {
    val isLoggedIn = login("johndoe", "password", object : Continuation<Boolean> {
        override val context: CoroutineContext = EmptyCoroutineContext

        override fun resumeWith(result: Result<Boolean>) {
            // Handle the login result
        }
    })
}

Note that you can also use a lambda expression instead of an anonymous class to simplify the usage of the continuation parameter. For example:

suspend fun login(username: String, password: String, continuation: Continuation<Boolean>) {
    // Perform login operation
    val isLoggedIn = performLogin(username, password)

    // Resume the function with the login result
    continuation.resume(isLoggedIn)
}

// Example usage
runBlocking {
    val isLoggedIn = login("johndoe", "password") { result ->
        // Handle the login result
    }
}