Line login implementation with ActivityResultContract

LineLogin.kt

class LineLogin : ActivityResultContract<LineLogin.Input, LineLoginResult>() {

    data class Input(
            val channelId: String,
            val params: LineAuthenticationParams,
            val isBrowserLoginOnly: Boolean
    )

    override fun createIntent(context: Context, input: Input): Intent {

        val (channelId, params, isBrowserLoginOnly) = input
        return if (isBrowserLoginOnly) {
            LineLoginApi.getLoginIntentWithoutLineAppAuth(context, channelId, params)
        } else {
            LineLoginApi.getLoginIntent(context, channelId, params)
        }
    }

    override fun parseResult(resultCode: Int, intent: Intent?): LineLoginResult {
        return LineLoginApi.getLoginResultFromIntent(intent)
    }

}