Koltin44，安卓开发权威指南

Animation.RELATIVE_TO_SELF, 0.0f)

translateAnim.duration = DURATION

animationSet.addAnimation(translateAnim)

return animationSet

}

/**

• 动画

*/

private fun getShowAnimation(): AnimationSet {

var animationSet: AnimationSet = AnimationSet(false)

animationSet.duration = DURATION

//透明度

val alphaAnim: Animation = AlphaAnimation(0.0f, 1.0f)

alphaAnim.duration = DURATION

animationSet.addAnimation(alphaAnim)

//旋转

val rotateAnim: Animation = RotateAnimation(0.0f, 720.0f, Animation.RELATIVE_TO_SELF, 0.5f, Animation.RELATIVE_TO_SELF, 0.5f)

rotateAnim.duration = DURATION

animationSet.addAnimation(rotateAnim)

val translateAnim: Animation = TranslateAnimation(

Animation.RELATIVE_TO_SELF, 2.0f,

Animation.RELATIVE_TO_SELF, 0.0f,

Animation.RELATIVE_TO_SELF, 0.0f,

Animation.RELATIVE_TO_SELF, 0.0f)

translateAnim.duration = DURATION

animationSet.addAnimation(translateAnim)

return animationSet

}

val ivIcon: ImageView

val tvName: TextView

val tvForm: TextView

val tvMonthSale: TextView

val tvNewPrice: TextView

val tvOldPrice: TextView

val btnAdd: ImageButton

val btnMinus: ImageButton

val tvCount: TextView

lateinit var goodsInfo: GoodsInfo

init {

ivIcon = itemView.find(R.id.iv_icon)

tvName = itemView.find(R.id.tv_name)

tvForm = itemView.find(R.id.tv_form)

tvMonthSale = itemView.find(R.id.tv_month_sale)

tvNewPrice = itemView.find(R.id.tv_newprice)

tvOldPrice = itemView.find(R.id.tv_oldprice)

tvCount = itemView.find(R.id.tv_count)

btnAdd = itemView.find(R.id.ib_add)

btnMinus = itemView.find(R.id.ib_minus)

btnAdd.setOnClickListener(this)

btnMinus.setOnClickListener(this)

}

fun bindData(goodsInfo: GoodsInfo) {

this.goodsInfo = goodsInfo

//图片路径http://127.0.0.1:8090/image?name=takeout/businessimg/goods/0.jpg

Picasso.with(context).load(host + goodsInfo.icon).into(ivIcon)

tvName.text = goodsInfo.name

// tvForm.text = goodsInfo.form

tvMonthSale.text = “月售${goodsInfo.monthSaleNum}份”

tvNewPrice.text = PriceFormater.format(goodsInfo.newPrice.toFloat())

// tvNewPrice.text = “$${goodsInfo.newPrice}”

tvOldPrice.text = “￥${goodsInfo.oldPrice}”

tvOldPrice.paint.flags = Paint.STRIKE_THRU_TEXT_FLAG

if (goodsInfo.oldPrice > 0) {

tvOldPrice.visibility = View.VISIBLE

} else {

tvOldPrice.visibility = View.GONE

}

tvCount.text = goodsInfo.count.toString()

if (goodsInfo.count > 0) {

tvCount.visibility = View.VISIBLE

btnMinus.visibility = View.VISIBLE

} else {

tvCount.visibility = View.INVISIBLE

btnMinus.visibility = View.INVISIBLE

}

}

}

override fun getCount(): Int {

return goodsList.size

}

override fun getItem(position: Int): Any {

return goodsList.get(position)

}

override fun getItemId(position: Int): Long {

return position.toLong()

}

override fun getView(position: Int, convertView: View?, parent: ViewGroup?): View {

var itemView: View

val goodsItemHolder: GoodsItemHolder

if (convertView == null) {

itemView = LayoutInflater.from(context).inflate(R.layout.item_goods, parent, false)

goodsItemHolder = GoodsItemHolder(itemView)

itemView.tag = goodsItemHolder

} else {

itemView = convertView

goodsItemHolder = convertView.tag as GoodsItemHolder

}

goodsItemHolder.bindData(goodsList.get(position))

return itemView

}

override fun getHeaderView(position: Int, convertView: View?, parent: ViewGroup?): View {

val goodsInfo: GoodsInfo = goodsList.get(position)

val typeName = goodsInfo.typeName

val textView: TextView = LayoutInflater.from(context).inflate(R.layout.item_type_header, parent, false) as TextView

textView.text = typeName

textView.setTextColor(Color.BLACK)

return textView

}

override fun getHeaderId(position: Int): Long {

val goodsInfo: GoodsInfo = goodsList.get(position)

return goodsInfo.typeId.toLong()

}

}

HomeRvAdapter.kt点击跳转到activity以前会先获取缓存的数据

package com.example.takeout.ui.adapter

import android.content.Context

import android.content.Intent

import android.view.View

import android.view.ViewGroup

import android.widget.ImageView

import android.widget.RatingBar

import android.widget.TextView

import androidx.recyclerview.widget.RecyclerView

import com.daimajia.slider.library.SliderLayout

import com.daimajia.slider.library.SliderTypes.TextSliderView

import com.example.takeout.R

import com.example.takeout.model.beans.Seller

import com.example.takeout.ui.activity.BusinessActivity

import com.example.takeout.utils.TakeoutApp

import com.squareup.picasso.Picasso

import org.jetbrains.anko.find

class HomeRvAdapter(val context: Context) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {

//定义常量

companion object {

val TYPE_TITLE = 0

val TYPE_SELLER = 1

}

val host = “http://127.0.0.1:8090/image?name=”

var mDatas: ArrayList = ArrayList()

fun setData(data: ArrayList) {

this.mDatas = data

notifyDataSetChanged()

}

/**

• 不同position对应不同类型

*/

override fun getItemViewType(position: Int): Int {

if (position == 0) {

return TYPE_TITLE

} else {

return TYPE_SELLER

}

}

override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {

val viewType = getItemViewType(position)

when (viewType) {

TYPE_TITLE -> (holder as TitleHolder).bindData(“我是title----------------------------------------”)

TYPE_SELLER -> (holder as SellerHolder).bindData(mDatas[position - 1])

}

}

override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {

when (viewType) {

TYPE_TITLE -> return TitleHolder(View.inflate(context, R.layout.item_title, null))

TYPE_SELLER -> return SellerHolder(View.inflate(context, R.layout.item_seller, null))

else -> return TitleHolder(View.inflate(context, R.layout.item_home_common, null))

}

}

override fun getItemCount(): Int {

if (mDatas.size > 0) {

return mDatas.size + 1

} else {

return 0

}

}

//内部类，商家的holder

inner class SellerHolder(item: View) : RecyclerView.ViewHolder(item) {

val tvTitle: TextView

val ivLogo: ImageView

val rbScore: RatingBar

val tvSale: TextView

val tvSendPrice: TextView

val tvDistance: TextView

lateinit var mSeller: Seller

init {

tvTitle = item.find(R.id.tv_title)

ivLogo = item.find(R.id.seller_logo)

rbScore = item.find(R.id.ratingBar)

tvSale = item.find(R.id.tv_home_sale)

tvSendPrice = item.find(R.id.tv_home_send_price)

tvDistance = item.find(R.id.tv_home_distance)

item.setOnClickListener {

val intent: Intent = Intent(context, BusinessActivity::class.java)//去取小明在田老师这家店是否有缓存信息

//逐层读取，判断整个这家店是否有缓存

var hasSelectInfo = false

val count = TakeoutApp.sInstance.queryCacheSelectedInfoBySellerId(mSeller.id.toInt())

if (count > 0) {

hasSelectInfo = true

}

intent.putExtra(“seller”, mSeller)

intent.putExtra(“hasSelectInfo”, hasSelectInfo)

context.startActivity(intent)

}

}

fun bindData(seller: Seller) {

this.mSeller = seller

tvTitle.text = seller.name

//图片路径http://127.0.0.1:8090/image?name=takeout/imgs/seller/3.jpg

println(“seller.ensure====” + seller.ensure)

Picasso.with(context).load(host + seller.ensure).into(ivLogo)

rbScore.rating = seller.score.toFloat()

tvSale.text = “月售${seller.sale}单”

tvSendPrice.text = “￥ s e l l e r . s e n d P r i c e 起 送 / 配 送 费 ￥ {seller.sendPrice}起送/配送费￥ seller.sendPrice起送/配送费￥{seller.deliveryFee}”

}

}

//存放图片的url和名称

var url_maps: HashMap<String, Int> = HashMap()

//内部类，title的holder

inner class TitleHolder(item: View) : RecyclerView.ViewHolder(item) {

val sliderLayout: SliderLayout

init {

sliderLayout = item.findViewById(R.id.slider)

}

fun bindData(data: String) {

if (url_maps.size == 0) {

url_maps.put(“Hannibal”, R.mipmap.pic1);

url_maps.put(“Big Bang Theory”, R.mipmap.pic2);

url_maps.put(“House of Cards”, R.mipmap.pic3);

url_maps.put(“Game of Thrones”, R.mipmap.pic4);

for ((key, value) in url_maps) {

val textSlideView: TextSliderView = TextSliderView(context)

textSlideView.description(key).image(value)

sliderLayout.addSlider(textSlideView)

}

}

}

}

}

BusinessActivity.kt会读取adapter item点击跳转过来的数据

package com.example.takeout.ui.activity

import android.content.Context

import android.content.DialogInterface

import android.content.Intent

import android.os.Bundle

import android.util.TypedValue

import android.view.LayoutInflater

import android.view.View

import android.view.ViewGroup

import android.widget.ImageButton

import android.widget.TextView

import androidx.appcompat.app.AlertDialog

import androidx.appcompat.app.AppCompatActivity

import androidx.fragment.app.Fragment

import androidx.fragment.app.FragmentPagerAdapter

import androidx.recyclerview.widget.LinearLayoutManager

import androidx.recyclerview.widget.RecyclerView

import com.example.takeout.R

import com.example.takeout.model.beans.Seller

import com.example.takeout.ui.adapter.CartRvAdapter

import com.example.takeout.ui.fragment.CommentsFragment

import com.example.takeout.ui.fragment.GoodsFragment

import com.example.takeout.ui.fragment.SellerFragment

import com.example.takeout.utils.PriceFormater

import kotlinx.android.synthetic.main.activity_business.*

class BusinessActivity : AppCompatActivity() , View.OnClickListener{

var bottomSheetView: View? = null

lateinit var rvCart: RecyclerView

lateinit var cartAdapter: CartRvAdapter

override fun onClick(v: View?) {

when (v?.id) {

R.id.bottom -> showOrHideCart()

R.id.tvSubmit -> {

// val intent : Intent = Intent(this, ConfirmOrderActivity::class.java)

// startActivity(intent)

}

}

}

/***

• 显示底部购物车的dialog

*/

fun showOrHideCart() {

if (bottomSheetView == null) {

//加载要显示的布局

bottomSheetView = LayoutInflater.from(this).inflate(R.layout.cart_list, window.decorView as ViewGroup, false)

rvCart = bottomSheetView!!.findViewById(R.id.rvCart) as RecyclerView

rvCart.layoutManager = LinearLayoutManager(this)

cartAdapter = CartRvAdapter(this)

rvCart.adapter = cartAdapter

val tvClear: TextView = bottomSheetView!!.findViewById(R.id.tvClear) as TextView

tvClear.setOnClickListener {

var builder = AlertDialog.Builder(this)

builder.setTitle(“确认都不吃了么？”)

builder.setPositiveButton(“是，我要减肥”, object : DialogInterface.OnClickListener {

override fun onClick(dialog: DialogInterface?, which: Int) {

//开始清空购物车,把购物车中商品的数量重置为0

val goodsFragment: GoodsFragment = fragments.get(0) as GoodsFragment

goodsFragment.goodsFragmentPresenter.clearCart()

cartAdapter.notifyDataSetChanged()

//关闭购物车

showOrHideCart()

//刷新右侧

goodsFragment.goodsAdapter.notifyDataSetChanged()

//清空所有红点

clearRedDot()

goodsFragment.goodsTypeAdapter.notifyDataSetChanged()

//更新下方购物篮

updateCartUi()

}

})

builder.setNegativeButton(“不，我还要吃”, object : DialogInterface.OnClickListener {

override fun onClick(dialog: DialogInterface?, which: Int) {

}

})

builder.show()

}

}

//判断BottomSheetLayout内容是否显示

if (bottomSheetLayout.isSheetShowing) {

//关闭内容显示

bottomSheetLayout.dismissSheet()

} else {

//显示BottomSheetLayout里面的内容

val goodsFragment: GoodsFragment = fragments.get(0) as GoodsFragment

val cartList = goodsFragment.goodsFragmentPresenter.getCartList()

cartAdapter.setCart(cartList)

if (cartList.size > 0) {

bottomSheetLayout.showWithSheetView(bottomSheetView)

}

}

}

private fun clearRedDot() {

val goodsFragment: GoodsFragment = fragments.get(0) as GoodsFragment

val goodstypeList = goodsFragment.goodsFragmentPresenter.goodstypeList

for (i in 0 until goodstypeList.size) {

val goodsTypeInfo = goodstypeList.get(i)

goodsTypeInfo.redDotCount = 0

}

}

override fun onCreate(savedInstanceState: Bundle?) {

super.onCreate(savedInstanceState)

setContentView(R.layout.activity_business)

processIntent()

//微调底部的导航栏适配

if (checkDeviceHasNavigationBar(this)) {

fl_Container.setPadding(0, 0, 0, 48.dp2px())

}

vp.adapter = BusinessFragmentPagerAdapter()

tabs.setupWithViewPager(vp)

bottom.setOnClickListener(this)

}

var hasSelectInfo = false

lateinit var seller: Seller

private fun processIntent() {

if (intent.hasExtra(“hasSelectInfo”)) {

hasSelectInfo = intent.getBooleanExtra(“hasSelectInfo”, false)

seller = intent.getSerializableExtra(“seller”) as Seller

tvDeliveryFee.text = “另需配送费” + PriceFormater.format(seller.deliveryFee.toFloat())

tvSendPrice.text = PriceFormater.format(seller.sendPrice.toFloat()) + “起送”

}

}

val fragments = listOf(GoodsFragment(), SellerFragment(), CommentsFragment())

val titles = listOf(“商品”, “商家”, “评论”)

/**

• 把转化功能添加到Int类中作为扩展函数

*/

fun Int.dp2px(): Int {

return TypedValue.applyDimension(

TypedValue.COMPLEX_UNIT_DIP,

toFloat(), resources.displayMetrics

).toInt()

}

//获取是否存在NavigationBar

fun checkDeviceHasNavigationBar(context: Context): Boolean {

var hasNavigationBar = false

val rs = context.getResources()

val id = rs.getIdentifier(“config_showNavigationBar”, “bool”, “android”)

if (id > 0) {

hasNavigationBar = rs.getBoolean(id)

}

try {

val systemPropertiesClass = Class.forName(“android.os.SystemProperties”)

val m = systemPropertiesClass.getMethod(“get”, String::class.java)

val navBarOverride = m.invoke(systemPropertiesClass, “qemu.hw.mainkeys”) as String

if (“1” == navBarOverride) {

hasNavigationBar = false

} else if (“0” == navBarOverride) {

hasNavigationBar = true

}

} catch (e: Exception) {

}

return hasNavigationBar

}

inner class BusinessFragmentPagerAdapter : FragmentPagerAdapter(supportFragmentManager) {

override fun getPageTitle(position: Int): CharSequence {

return titles.get(position)

}

override fun getItem(position: Int): Fragment {

return fragments.get(position)

}

override fun getCount(): Int {

return titles.size

}

}

/**

• 增加的按钮

*/

fun addImageButton(ib: ImageButton, width: Int, height: Int) {

fl_Container.addView(ib, width, height)

}

fun getCartLocation(): IntArray {

val destLocation = IntArray(2)

imgCart.getLocationInWindow(destLocation)

return destLocation

}

/**

• 更新购物车

*/

fun updateCartUi() {

//更新数量，更新总价

var count = 0

var countPrice = 0.0f

//哪些商品属于购物车？

val goodsFragment: GoodsFragment = fragments.get(0) as GoodsFragment

val cartList = goodsFragment.goodsFragmentPresenter.getCartList()

for (i in 0 until cartList.size) {

val goodsInfo = cartList.get(i)

count += goodsInfo.count

countPrice += goodsInfo.count * goodsInfo.newPrice.toFloat()

}

tvSelectNum.text = count.toString()

if (count > 0) {

tvSelectNum.visibility = View.VISIBLE

} else {

tvSelectNum.visibility = View.GONE

}

tvCountPrice.text = PriceFormater.format(countPrice)

}

}

CacheSelectedInfo.kt点餐缓存的bean文件

package com.example.takeout.model.beans

/*

点餐缓存

*/

data class CacheSelectedInfo(var sellerId: Int, var typeId: Int, var goodsId: Int, var count: Int) {

// val sellerId = 0 //田老师店

// val userId = 38 //小明

// val typeId = 0 //粗粮主食

// val goodsId = 0 //馒头

// val count = 0 //馒头数量

}

GoodsFragmentPresenter.kt业务逻辑的操作，直接读取缓存的数据，并且更新购物车的UI

package com.example.takeout.presenter

import android.util.Log

import com.example.takeout.model.beans.GoodsInfo

import com.example.takeout.model.beans.GoodsTypeInfo

import com.example.takeout.ui.activity.BusinessActivity

import com.example.takeout.ui.fragment.GoodsFragment

import com.example.takeout.utils.TakeoutApp

import com.google.gson.Gson

import com.google.gson.reflect.TypeToken

import org.json.JSONObject

class GoodsFragmentPresenter(val goodsFragment: GoodsFragment) : NetPresenter() {

var goodstypeList: List = arrayListOf()

val allTypeGoodsList: ArrayList = arrayListOf()

//连接服务器拿到此商家所有商品

fun getBusinessInfo() {

val businessCall = takeoutService.getBusinessInfo()

businessCall.enqueue(callback)

}

override fun parserJson(json: String) {

val gson = Gson()

val jsoObj = JSONObject(json)

val allStr = jsoObj.getString(“list”)

val hasSelectInfo = (goodsFragment.activity as BusinessActivity).hasSelectInfo //是否有点餐记录

//List

//商品类型的集合

goodstypeList = gson.fromJson(allStr, object : TypeToken<List>() {

}.type)

Log.e(“business”, “该商家一共有” + goodstypeList.size + “个类别商品”)

for (i in 0 until goodstypeList.size) {

val goodsTypeInfo = goodstypeList.get(i)

var aTypeCount = 0

//如果缓存有数据就从缓存中读取数据

if(hasSelectInfo){

aTypeCount = TakeoutApp.sInstance.queryCacheSelectedInfoByTypeId(goodsTypeInfo.id)

goodsTypeInfo.redDotCount = aTypeCount //一个类别的记录，红点的个数

}

val aTypeList: List = goodsTypeInfo.list

for (j in 0 until aTypeList.size) {

val goodsInfo = aTypeList.get(j)

//建立双向绑定关系

goodsInfo.typeName = goodsTypeInfo.name

goodsInfo.typeId = goodsTypeInfo.id

}

allTypeGoodsList.addAll(goodsTypeInfo.list)

}

//更新购物车ui

(goodsFragment.activity as BusinessActivity).updateCartUi()

goodsFragment.onLoadBusinessSuccess(goodstypeList, allTypeGoodsList)

}

//根据商品类别id找到此类别第一个商品的位置

fun getGoodsPositionByTypeId(typeId: Int): Int {

var position = -1 //-1表示未找到

for(j in 0 until allTypeGoodsList.size){

val goodsInfo = allTypeGoodsList.get(j)

if(goodsInfo.typeId == typeId){

position = j

break;

}

}

return position

}

//根据类别id找到其在左侧列表中的position,遍历左侧的列表

fun getTypePositionByTypeId(newTypeId: Int):Int {

var position = -1 //-1表示未找到

for(i in 0 until goodstypeList.size){

val goodsTypeInfo = goodstypeList.get(i)

if(goodsTypeInfo.id == newTypeId){

position = i

break;

}

}

return position

}

fun getCartList() : ArrayList {

val cartList = arrayListOf()

//count >0的为购物车商品

for(j in 0 until allTypeGoodsList.size){

val goodsInfo = allTypeGoodsList.get(j)

if(goodsInfo.count>0){

cartList.add(goodsInfo)

}

}

return cartList

}

fun clearCart() {

val cartList = getCartList()

for(j in 0 until cartList.size) {

val goodsInfo = cartList.get(j)

goodsInfo.count = 0

}

}

}

CartRvAdapter.购物车的数据，更新购物车的缓存

package com.example.takeout.ui.adapter

import android.content.Context

import android.content.Intent

import android.view.View

import android.view.ViewGroup

import android.widget.ImageView

import android.widget.RatingBar

import android.widget.TextView

import androidx.recyclerview.widget.RecyclerView

import com.daimajia.slider.library.SliderLayout

import com.daimajia.slider.library.SliderTypes.TextSliderView

import com.example.takeout.R

import com.example.takeout.model.beans.Seller

import com.example.takeout.ui.activity.BusinessActivity

import com.example.takeout.utils.TakeoutApp

import com.squareup.picasso.Picasso

import org.jetbrains.anko.find

class HomeRvAdapter(val context: Context) : RecyclerView.Adapter<RecyclerView.ViewHolder>() {

//定义常量

companion object {

val TYPE_TITLE = 0

val TYPE_SELLER = 1

}

val host = “http://127.0.0.1:8090/image?name=”

var mDatas: ArrayList = ArrayList()

fun setData(data: ArrayList) {

this.mDatas = data

notifyDataSetChanged()

}

/**

• 不同position对应不同类型

*/

override fun getItemViewType(position: Int): Int {

if (position == 0) {

return TYPE_TITLE

} else {

return TYPE_SELLER

}

}

override fun onBindViewHolder(holder: RecyclerView.ViewHolder, position: Int) {

val viewType = getItemViewType(position)

when (viewType) {

TYPE_TITLE -> (holder as TitleHolder).bindData(“我是title----------------------------------------”)

TYPE_SELLER -> (holder as SellerHolder).bindData(mDatas[position - 1])

}

}

override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerView.ViewHolder {

when (viewType) {

TYPE_TITLE -> return TitleHolder(View.inflate(context, R.layout.item_title, null))

TYPE_SELLER -> return SellerHolder(View.inflate(context, R.layout.item_seller, null))

else -> return TitleHolder(View.inflate(context, R.layout.item_home_common, null))

}

}

override fun getItemCount(): Int {

if (mDatas.size > 0) {

return mDatas.size + 1

} else {

return 0

}

}

//内部类，商家的holder

inner class SellerHolder(item: View) : RecyclerView.ViewHolder(item) {

val tvTitle: TextView

val ivLogo: ImageView

val rbScore: RatingBar

val tvSale: TextView

val tvSendPrice: TextView

val tvDistance: TextView

lateinit var mSeller: Seller

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init {

tvTitle = item.find(R.id.tv_title)

ivLogo = item.find(R.id.seller_logo)

rbScore = item.find(R.id.ratingBar)

tvSale = item.find(R.id.tv_home_sale)

tvSendPrice = item.find(R.id.tv_home_send_price)

tvDistance = item.find(R.id.tv_home_distance)

item.setOnClickListener {

val intent: Intent = Intent(context, BusinessActivity::class.java)//去取小明在田老师这家店是否有缓存信息

//逐层读取，判断整个这家店是否有缓存

var hasSelectInfo = false

val count = TakeoutApp.sInstance.queryCacheSelectedInfoBySellerId(mSeller.id.toInt())

if (count > 0) {

hasSelectInfo = true

}

intent.putExtra(“seller”, mSeller)

intent.putExtra(“hasSelectInfo”, hasSelectInfo)

context.startActivity(intent)

}

}

fun bindData(seller: Seller) {

this.mSeller = seller

tvTitle.text = seller.name

//图片路径http://127.0.0.1:8090/image?name=takeout/imgs/seller/3.jpg

println(“seller.ensure====” + seller.ensure)

Picasso.with(context).load(host + seller.ensure).into(ivLogo)

rbScore.rating = seller.score.toFloat()

tvSale.text = “月售${seller.sale}单”

tvSendPrice.text = “￥ s e l l e r . s e n d P r i c e 起 送 / 配 送 费 ￥ {seller.sendPrice}起送/配送费￥ seller.sendPrice起送/配送费￥{seller.deliveryFee}”

}

}

//存放图片的url和名称

var url_maps: HashMap<String, Int> = HashMap()

//内部类，title的holder

inner class TitleHolder(item: View) : RecyclerView.ViewHolder(item) {

val sliderLayout: SliderLayout

init {

sliderLayout = item.findViewById(R.id.slider)

}

fun bindData(data: String) {

if (url_maps.size == 0) {

url_maps.put(“Hannibal”, R.mipmap.pic1);

url_maps.put(“Big Bang Theory”, R.mipmap.pic2);

标签：指南,val,Koltin44,Int,安卓,seller,fun,import,id
来源： https://blog.csdn.net/m0_65511857/article/details/122107737