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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”)

// Collection of commodity types

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

}.type)

Log.e(“business”, “ The merchant has a total of ” + goodstypeList.size + “ Categories of goods ”)

goodsFragment.onLoadBusinessSuccess(goodstypeList)

}

}

GoodsTypeInfo.kt Commodity bean

package com.example.takeout.model.beans

class GoodsTypeInfo {

var id: Int = 0// Commodity type id

var name: String = “”// Commodity type name

var info: String = “”// Special information

var list: List = listOf()// List of goods

constructor() : super() {}

constructor(id: Int, name: String, info: String, list: List) : super() {

this.id = id

this.name = name

this.info = info

this.list = list

}

override fun toString(): String {

return “GoodsTypeInfo [id=$id,name=$name, info=$info,list=$list]”

}

var redDotCount: Int = 0

}

GoodsTypeRvAdapter.kt The main interface on the left side of the product RecycleView, It uses FragmentActivity? As a androidx Below Context

package com.example.takeout.ui.adapter

import android.view.LayoutInflater

import android.view.View

import android.view.ViewGroup

import android.widget.TextView

import androidx.fragment.app.FragmentActivity

import androidx.recyclerview.widget.RecyclerView

import com.example.takeout.R

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

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

import org.jetbrains.anko.find

class GoodsTypeRvAdapter(val context: FragmentActivity?, val goodsFragment: GoodsFragment) :

RecyclerView.Adapter<RecyclerView.ViewHolder>() {

var goodsTypeList: List = listOf()

fun setDatas(list: List) {

this.goodsTypeList = list

notifyDataSetChanged()

}

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

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

return GoodsTypeItemHolder(itemView)

}

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

val goodsTypeItemHolder = holder as GoodsTypeItemHolder

goodsTypeItemHolder.bindData(goodsTypeList.get(position), position)

}

override fun getItemCount(): Int {

return goodsTypeList.size

}

inner class GoodsTypeItemHolder(val item: View) : RecyclerView.ViewHolder(item) {

val tvType: TextView

init {

tvType = item.find(R.id.type)

}

fun bindData(goodsTypeInfo: GoodsTypeInfo, position: Int) {

tvType.text = goodsTypeInfo.name

}

}

}

TakeoutService.kt The request format of the server

package com.example.takeout.model.net

import retrofit2.Call

import retrofit2.http.GET

import rx.Observable

interface TakeoutService {

//ex. @GET(“users/{user}/repos”)

//ex. fun listRepos(@Path(“user”) user: String): Call<List>

//http://127.0.0.1:8090/takeout?index=0

@GET(“takeout?index=0”)

fun getHomeInfo(): Call

//http://127.0.0.1:8090/takelogin?index=0

@GET(“takelogin?index=0”)

fun loginByPhone(): Call

//http://127.0.0.1:8090/takeorder?index=0

@GET(“takeorder?index=0”)

fun getOrderList(): Call

// Use Rxjava Combined interface

//http://127.0.0.1:8090/takeorder?index=0

@GET(“takeorder?index=0”)

fun getOrderListByRxjava(): Observable

@GET(“takebusiness?index=0”)

fun getBusinessInfo(): Call

}

item_type.xml Layout file

<?xml version="1.0" encoding="utf-8"?>

<LinearLayout xmlns:android=“http://schemas.android.com/apk/res/android”

android:layout_width=“match_parent”

android:clickable=“true”

android:layout_height=“wrap_content”

Last

It is said that three years is a barrier for programmers , Whether to promote or improve their core competitiveness , These years have been critical .

Technology is developing so fast , Where to start learning , In order to reach the level of Senior Engineer , At last, we advanced to Android Architects / technician ？ I summed up this 5 large ;

I've collected these years Ali , And Tencent , Bytes to beat , Huawei , Interview questions of Xiaomi and other companies , Sort out the interview requirements and technical points into a large and complete “ Android Architects ” interview Xmind（ In fact, it took a lot more energy than expected ）, Contains the context of knowledge + Branch details .

《Android Architecture video +BAT Interview topics PDF+ Learning notes ​》

Online learning Android A lot of information , But if the knowledge learned is not systematic , When you encounter a problem, you just have a taste of it , No further study , So it's hard to really improve the technology . hope ** This systematic technology system ** There is a direction reference for you .

F-1644918297184)]

Online learning Android A lot of information , But if the knowledge learned is not systematic , When you encounter a problem, you just have a taste of it , No further study , So it's hard to really improve the technology . hope ** This systematic technology system ** There is a direction reference for you .

2021 In spite of the bumpy road , It's all about Android To fall , however , Don't panic , Make your own plan , Learn from yourself , Competition is everywhere , This is true of every industry . Believe in yourself , Nothing is impossible , Only the unexpected . Wish you all 2021 Everything is going well in the new year .