package com.example.takeout.ui.fragment
import android.os.Bundle
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import androidx.fragment.app.Fragment
import androidx.recyclerview.widget.LinearLayoutManager
import androidx.recyclerview.widget.RecyclerView
import com.example.takeout.R
import com.example.takeout.model.beans.GoodsInfo
import com.example.takeout.model.beans.GoodsTypeInfo
import com.example.takeout.presenter.GoodsFragmentPresenter
import com.example.takeout.ui.adapter.GoodsAdapter
import com.example.takeout.ui.adapter.GoodsTypeRvAdapter
import org.jetbrains.anko.find
import se.emilsjolander.stickylistheaders.StickyListHeadersListView
/**
- 详情页商品列表界面
*/
class GoodsFragment : Fragment() {
lateinit var rvGoodsType: RecyclerView //左侧的RecyclerView
lateinit var slhlv: StickyListHeadersListView //
lateinit var goodsFragmentPresenter: GoodsFragmentPresenter
lateinit var goodsTypeAdapter :GoodsTypeRvAdapter
lateinit var goodsAdapter: GoodsAdapter
override fun onCreateView(
inflater: LayoutInflater,
container: ViewGroup?,
savedInstanceState: Bundle?
): View? {
val goodsView =
LayoutInflater.from(activity).inflate(R.layout.fragment_goods, container, false)
rvGoodsType = goodsView.find(R.id.rv_goods_type)
slhlv = goodsView.find(R.id.slhlv)
goodsAdapter = GoodsAdapter(activity,this)
slhlv.adapter = goodsAdapter
rvGoodsType.layoutManager = LinearLayoutManager(activity)
goodsTypeAdapter = GoodsTypeRvAdapter(activity, this)
rvGoodsType.adapter = goodsTypeAdapter
goodsFragmentPresenter = GoodsFragmentPresenter(this)
return goodsView
}
override fun onActivityCreated(savedInstanceState: Bundle?) {
super.onActivityCreated(savedInstanceState)
goodsFragmentPresenter.getBusinessInfo()
}
fun onLoadBusinessSuccess(goodstypeList: List, allTypeGoodsList: ArrayList) {
goodsTypeAdapter.setDatas(goodstypeList) //左侧列表//右侧列表
goodsAdapter.setDatas(allTypeGoodsList)
// goodsTypeAdapter.notifyDataSetChanged()
}
}
GoodsAdapter.kt右侧内容栏的StickyListHeadersAdapter容器
package com.example.takeout.ui.adapter
import android.graphics.Color
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.BaseAdapter
import android.widget.ImageButton
import android.widget.ImageView
import android.widget.TextView
import androidx.fragment.app.FragmentActivity
import com.example.takeout.R
import com.example.takeout.model.beans.GoodsInfo
import com.example.takeout.ui.fragment.GoodsFragment
import org.jetbrains.anko.find
import se.emilsjolander.stickylistheaders.StickyListHeadersAdapter
class GoodsAdapter(val context: FragmentActivity?, val goodsFragment: GoodsFragment) : BaseAdapter(), StickyListHeadersAdapter {
var goodsList: List = ArrayList()
fun setDatas(goodsInfoList: List) {
this.goodsList = goodsInfoList
notifyDataSetChanged()
}
inner class GoodsItemHolder(itemView: View) : View.OnClickListener {
override fun onClick(v: View?) {
TODO(“Not yet implemented”)
}
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
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) {
tvName.text = goodsInfo.name
}
}
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 textView = TextView(context)
textView.text = “商品类别1”
textView.setTextColor(Color.BLACK)
return textView
}
override fun getHeaderId(position: Int): Long {
return 0
}
}
GoodsFragmentPresenter.kt负责数据的请求分解上一节的请求的数据
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.fragment.GoodsFragment
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”)
//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”)
最后
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