单接口方法时候,只有一个参数,无返回值的情况下不需要定义接口,有返回值的时候只需将Unit改为返回值类型

//赋值类 MyReaderCardManager
private lateinit var listener:(cardInfo: IDCard?) -> Unit;
fun setOnIDCardListener(listener: (cardInfo: IDCard?) ->Unit){
    this.listener = listener
}
listener.invoke(idCard)

//回调类
MyReaderCardManager.setOnIDCardListener {
            if (it==null){
                Log.d(TAG, "startZFBFaceService: 读取身份证超时")
                idCardResult.postValue(PersonInfoDataError(errorCode = "读取身份证失败", msg = "读取身份证超时"))
            }else{
                Log.d(TAG, "startZFBFaceService: ${it?.name}")
                val infoData = PersonInfoData()
                infoData.id = it.id.trim { it <= ' ' }
                infoData.name = it.name.trim { it <= ' ' }
                infoData.photoDataHexStr = it.photoDataHexStr.trim { it <= ' ' }
                idRecognize(it, infoData) //1:1认证比对
            }
        }

多接口方法回调

定义一个接口
interface IZFBServicesGetCard {
    fun onIDCardInfo(cardInfo: IDCard)
    fun onSuccess()
    fun onFail():Int
    fun onLoad(a:Int,b:String)
}

/**
 * @author 
 * @date 2022/8/10 14:16
 * @description Builder  创建一个builder简化回调
 **/
class Builder: IZFBServicesGetCard {

    private lateinit var idCardListener :(cardInfo: IDCard) -> Unit
    private lateinit var successListener :() -> Unit
    private lateinit var failListener :() -> Int
    private lateinit var loadListener :(a: Int,b:String) -> Unit

    fun setOnIDCardInfo(listener: (cardInfo: IDCard) -> Unit){
        idCardListener = listener
    }

    fun setOnSuccess(listener: () -> Unit){
        successListener = listener
    }

    fun setOnFail(listener: () -> Int){
        failListener = listener
    }

    fun setOnLoad(listener: (a: Int,b: String) -> Unit){
        loadListener = listener
    }

    override fun onIDCardInfo(cardInfo: IDCard) {
        idCardListener.invoke(cardInfo)
    }

    override fun onSuccess() {
        successListener.invoke()
    }

    override fun onFail(): Int {
        failListener.invoke()
        return 6666
    }

    override fun onLoad(a: Int, b: String) {
        loadListener.invoke(a,b)
    }
}

//赋值类   MyReaderCardManager
    private lateinit var listen: IZFBServicesGetCard
    fun setOnZFBServiceListener(listen: Builder.() -> Unit ){
        var builder = Builder()
        builder.listen()
        this.listen = builder
    }
listen.onFail()
listen.onSuccess()
listen.onLoad(22222,"456")

//监听类
        MyReaderCardManager.setOnZFBServiceListener {
            setOnFail {
                Log.d(TAG, "startZFBFaceService: setOnFail")
            }

            setOnIDCardInfo {
                Log.d(TAG, "startZFBFaceService: setOnIDCardInfo${it.name}")
            }

            setOnLoad { a, b ->
                Log.d(TAG, "startZFBFaceService: setOnLoad --$a+++$b")
            }

            setOnSuccess {
                Log.d(TAG, "startZFBFaceService: setOnSuccess")
            }
        }