调试通过获取设备信息实时更新二级页面重量，首页和二级页面列表页增加空数据展示

app/src/main/java/com/shuwei/intelligent/shelves/HomeActivity.kt

@@ -2,6 +2,7 @@ package com.shuwei.intelligent.shelves
 
 import android.annotation.SuppressLint
 import android.content.Intent
+import android.graphics.Color
 import android.os.Bundle
 import android.os.Handler
 import android.os.Looper
@@ -12,6 +13,7 @@ import androidx.activity.viewModels
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
+import androidx.recyclerview.widget.DefaultItemAnimator
 import androidx.recyclerview.widget.GridLayoutManager
 import com.chad.library.adapter4.util.setOnDebouncedItemClick
 import com.shuwei.intelligent.shelves.adapter.ShelfAdapter
@@ -25,20 +27,26 @@ import com.shuwei.intelligent.shelves.net.RespData
 import com.shuwei.intelligent.shelves.net.UiState
 import com.shuwei.intelligent.shelves.serial.SerialPortManager
 import com.shuwei.intelligent.shelves.task.TaskManager
-import com.shuwei.intelligent.shelves.utils.UIUtils
+import com.shuwei.intelligent.shelves.utils.binaryToHex
+import com.shuwei.intelligent.shelves.utils.ext.gone
+import com.shuwei.intelligent.shelves.utils.ext.toast
+import com.shuwei.intelligent.shelves.utils.ext.visible
 import com.shuwei.intelligent.shelves.utils.f2C
+import com.shuwei.intelligent.shelves.utils.hexToBinary
 import com.shuwei.intelligent.shelves.utils.hexToDec
+import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
 import java.text.SimpleDateFormat
 import java.util.Date
 import java.util.Locale
-import kotlin.getValue
 
 class HomeActivity : BaseActivity() {
 
     companion object {
         private const val TAG = "HomeActivity"
 
+        private const val MM_DD_EEEE__HH_MM_SS = "MM月dd日 EEEE  HH:mm:ss"
+
         //协议头
         const val HEADER = "D6DADEDB"
 
@@ -63,6 +71,8 @@ class HomeActivity : BaseActivity() {
 
     private val viewModel: NetViewModel by viewModels()
 
+    private val weightArray by lazy { SparseArray<Double?>() }
+
     @SuppressLint("NotifyDataSetChanged", "HardwareIds")
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -71,7 +81,6 @@ class HomeActivity : BaseActivity() {
 
         updateLeftStatus("1-1冷藏柜  -°C / -%")
 
-        initList()
         initRecyclerView()
 
         lifecycleScope.launch {
@@ -94,7 +103,7 @@ class HomeActivity : BaseActivity() {
                         when (state) {
                             is UiState.Loading -> {}
                             is UiState.Success<*> -> getTokenSuccess(state.data)
-                            is UiState.Error -> UIUtils.toast(state.msg)
+                            is UiState.Error -> toast(state.msg)
                             else -> {}
                         }
                     }
@@ -113,7 +122,8 @@ class HomeActivity : BaseActivity() {
         }
         TaskManager.startTask()
 
-        val androidId = Settings.Secure.getString(contentResolver, Settings.Secure.ANDROID_ID)
+        var androidId = Settings.Secure.getString(contentResolver, Settings.Secure.ANDROID_ID)
+//        androidId = "d0e7a2d5f25c775c"
         Log.d(TAG, "onCreate: androidId=${androidId}")
         App.getInstance().deviceId = androidId
         //"53babf69-0d2f-3875-a649-f2e12f80ad4c1"
@@ -130,6 +140,29 @@ class HomeActivity : BaseActivity() {
 //               receiveSerialPortData(data)
 //               delay(500)
 //           }
+//        }
+
+//        lifecycleScope.launch {
+//            repeat(100) {
+//                val sb = StringBuilder().apply {
+////                    610200000000000001000000050000800000000006000000050000000400008006000000010000001019008070180080
+//                    repeat(12) {
+//                        val num = (0..99).random()
+//                        val num2 = (0..99).random()
+//                        val num3 = (0..99).random()
+//                        val num4 = (0..1).random()
+//                        val numStr = if (num <= 9) "0${num}" else "" + num
+//                        val numStr2 = if (num2 <= 9) "0${num2}" else "" + num2
+//                        val numStr3 = if (num3 <= 9) "0${num3}" else "" + num3
+//                        val numStr4 = if (num4 == 1) "80" else "00"
+//                        append(numStr).append(numStr2).append(numStr3).append(numStr4)
+//                    }
+//                }
+//                val data =
+//                    "${HEADER}0302000000000C${sb}5037414645333633333334333731373056322E313069${FOOTER}"
+//                receiveSerialPortData(data)
+//                delay(500)
+//            }
 //        }
     }
 
@@ -148,19 +181,20 @@ class HomeActivity : BaseActivity() {
 
     @SuppressLint("NotifyDataSetChanged")
     private fun updateUI(data: RespData<*>) {
+        binding.include?.root?.gone()
         Loading.dismiss()
         if (data.result !is ShelfResult) {
-            UIUtils.toast("数据错误")
+            loadEmptyView()
             return
         }
         App.getInstance().canteenId = data.result.canteenId
         val tempList = data.result.containerGoodsList
         if (tempList.isNullOrEmpty()) {
-            UIUtils.toast("数据为空")
+            loadEmptyView()
             return
         }
         if (tempList.size < 10) {
-            UIUtils.toast("数据错误")
+            toast("数据错误")
             return
         }
         list.clear()
@@ -175,7 +209,8 @@ class HomeActivity : BaseActivity() {
 
     private fun showError(message: String) {
         Loading.dismiss()
-        UIUtils.toast(message)
+        toast(message)
+        loadEmptyView()
     }
 
     private val serialReader by lazy { StringBuilder() }
@@ -199,7 +234,7 @@ class HomeActivity : BaseActivity() {
             val endIndex = srcData.indexOf(FOOTER) + FOOTER.length
             serialReader.append(srcData.substring(0, endIndex))
             Log.d(TAG, "receiveSerialPortData:serialReader: $serialReader")
-            data = serialReader.toString().replace(",","")
+            data = serialReader.toString().replace(",", "")
         }
 
         val cmd = data.substring(HEADER.length, HEADER.length + 4)
@@ -215,10 +250,10 @@ class HomeActivity : BaseActivity() {
 //                heartBeat(data)
 //            }
 
-//            "0302" -> {
+            "0302" -> {
-//                //获取设备状态
+                //获取设备状态
-//                getDeviceInfo(data)
+                getDeviceInfo(data)
-//            }
+            }
 
             else -> {}
         }
@@ -262,13 +297,16 @@ class HomeActivity : BaseActivity() {
                     substring(6, 8) + substring(4, 6) + substring(2, 4) + substring(0, 2)
             }
             var realWeight = 0
-            if (weightHex.first() in '8'..'F') {
+            var firstByteBinary = hexToBinary(weightHex.substring(0, 2))
-                //负数
+            if (firstByteBinary.startsWith("0")) {
-                val weightHex2 = "0${weightHex.substring(1)}"
+                //正数
-                realWeight = -1 * weightHex2.toInt()
-            } else {
-                //整数
                 realWeight = weightHex.toInt()
+            } else {
+                //负数
+                firstByteBinary = "0${firstByteBinary.substring(1)}"
+                val firstByteHex = binaryToHex(firstByteBinary)
+                weightHex = firstByteHex + weightHex.substring(2)
+                realWeight = -1 * weightHex.toInt()
             }
             val realWeightDouble = realWeight / 1000.0
             weightArray.put(index, realWeightDouble)
@@ -287,27 +325,33 @@ class HomeActivity : BaseActivity() {
     }
 
     private fun getDeviceInfo(data: String) {
-//        val weightStartIndex = HEADER.length + 4 + 10
+        Log.d(TAG, "getDeviceInfo: data=$data")
-//        val temperatureStartIndex = weightStartIndex + 12 * 8
+        val weightStartIndex = HEADER.length + 14
-//        val temperatureEndIndex = temperatureStartIndex + 2
+        val temperatureStartIndex = weightStartIndex + 12 * 8
-//        val temperatureHex = data.substring(temperatureStartIndex, temperatureEndIndex)
+        val temperatureEndIndex = temperatureStartIndex + 2
-//        val temperature = hexToDec(temperatureHex)
+        val temperatureHex = data.substring(temperatureStartIndex, temperatureEndIndex)
-//        updateLeftStatus("1-1冷藏柜  $temperature°C / 87%")
+        val temperature = hexToDec(temperatureHex)
-//
+        val tempC = f2C(temperature.toDouble())
-//        getWeightInfo(
+        val showTemp = "%.1f".format(tempC)
-//            start = weightStartIndex,
+
-//            end = temperatureStartIndex,
+        val percent = 10 * list.count { it.goodsName.isNullOrBlank().not() }
-//            data = data
+
-//        )
+        updateLeftStatus("1-1冷藏柜  ${showTemp}°C / ${percent}%")
-//
+
-//        val intent = Intent(ShelfActivity.RECEIVER_DEVICE_INFO)
+        getWeightInfo(
-//        intent.putExtra(ShelfActivity.SHELF_WEIGHT, weightArray[clickIndex])
+            start = weightStartIndex,
-//        intent.putExtra(ShelfActivity.RECEIVER_DEVICE_INFO, data)
+            end = temperatureStartIndex,
-//        sendBroadcast(intent)
+            data = data
+        )
+
+        if (list.isNotEmpty()) {
+            val intent = Intent(ShelfActivity.RECEIVER_DEVICE_INFO + list[shelfIndex].deviceNo)
+            intent.putExtra(ShelfActivity.SHELF_WEIGHT, weightArray[shelfIndex])
+            sendBroadcast(intent)
+        }
     }
 
-    private val weightArray by lazy { SparseArray<Double?>() }
+    private var shelfIndex = 0
-    private var clickIndex = 0
 
     override fun onDestroy() {
         lifecycleScope.launch {
@@ -319,10 +363,9 @@ class HomeActivity : BaseActivity() {
 
     @Suppress("DEPRECATION")
     private val shelfAdapter by lazy {
-//        val list = viewModel.getCurrentItems()
         ShelfAdapter(list).apply {
             setOnDebouncedItemClick { adapter, view, position ->
-                this@HomeActivity.clickIndex = position
+                this@HomeActivity.shelfIndex = position
                 lifecycleScope.launch {
                     val openCmd = if (list[position].deviceNo in 1..5)
                         LEFT_SHELF_OPEN_CMD
@@ -330,7 +373,7 @@ class HomeActivity : BaseActivity() {
                         RIGHT_SHELF_OPEN_CMD
                     val openState = SerialPortManager.send(openCmd)
                     if (openState.not()) {
-                        UIUtils.toast("${list[position].goodsName}柜门开启失败")
+                        toast("${list[position].goodsName}柜门开启失败")
                         return@launch
                     }
                     launch(Intent(this@HomeActivity, ShelfActivity::class.java).also {
@@ -358,26 +401,15 @@ class HomeActivity : BaseActivity() {
             layoutManager =
                 GridLayoutManager(this@HomeActivity, 2, GridLayoutManager.VERTICAL, false)
             adapter = shelfAdapter
+
+            itemAnimator.let {
+                if (it is DefaultItemAnimator) {
+                    it.supportsChangeAnimations = false
+                }
+            }
         }
     }
 
-    private fun initList() {
-////        val list: MutableList<ShelfModel> = mutableListOf()
-//        list.add(ShelfModel(deviceNo = 1))
-//        list.add(ShelfModel(deviceNo = 6))
-//        list.add(ShelfModel(deviceNo = 2))
-//        list.add(ShelfModel(deviceNo = 7))
-//        list.add(ShelfModel(deviceNo = 3))
-//        list.add(ShelfModel(deviceNo = 8))
-//        list.add(ShelfModel(deviceNo = 4))
-//        list.add(ShelfModel(deviceNo = 9))
-//        list.add(ShelfModel(deviceNo = 5))
-//        list.add(ShelfModel(deviceNo = 10))
-////        viewModel.updateItems(list)
-    }
-
-    private val MM_DD_EEEE__HH_MM_SS = "MM月dd日 EEEE  HH:mm:ss"
-
     private fun updateDateTime() {
         val sdf = SimpleDateFormat(MM_DD_EEEE__HH_MM_SS, Locale.CHINA)
         val dateTime = sdf.format(Date())
@@ -402,4 +434,19 @@ class HomeActivity : BaseActivity() {
         super.onPause()
         handler.removeCallbacks(updateTask)
     }
+
+    @SuppressLint("NotifyDataSetChanged")
+    private fun loadEmptyView() {
+        list.clear()
+        shelfAdapter.notifyDataSetChanged()
+
+        binding.include?.let {
+            it.root.visible()
+            it.root.setOnClickListener {
+                viewModel.getAccessToken(App.getInstance().deviceId)
+            }
+            it.ivEmptyIcon.setImageResource(R.drawable.ic_empty_white)
+            it.tvEmptyContent.setTextColor(Color.WHITE)
+        }
+    }
 }

app/src/main/java/com/shuwei/intelligent/shelves/ShelfActivity.kt

@@ -10,6 +10,7 @@ import android.os.Handler
 import android.os.Looper
 import android.util.Log
 import androidx.activity.viewModels
+import androidx.core.widget.addTextChangedListener
 import androidx.lifecycle.Lifecycle
 import androidx.lifecycle.lifecycleScope
 import androidx.lifecycle.repeatOnLifecycle
@@ -30,11 +31,12 @@ import com.shuwei.intelligent.shelves.net.UiState
 import com.shuwei.intelligent.shelves.serial.SerialPortManager
 import com.shuwei.intelligent.shelves.utils.DateTimeUtil
 import com.shuwei.intelligent.shelves.utils.KeyboardUtil
-import com.shuwei.intelligent.shelves.utils.UIUtils
 import com.shuwei.intelligent.shelves.utils.ext.addOnActionSearchListener
 import com.shuwei.intelligent.shelves.utils.ext.clickWithDebounce
+import com.shuwei.intelligent.shelves.utils.ext.gone
 import com.shuwei.intelligent.shelves.utils.ext.toJsonString
 import com.shuwei.intelligent.shelves.utils.ext.toast
+import com.shuwei.intelligent.shelves.utils.ext.visible
 import kotlinx.coroutines.launch
 import java.text.SimpleDateFormat
 import java.util.Date
@@ -45,11 +47,14 @@ class ShelfActivity : BaseActivity() {
 
     companion object {
         private const val TAG = "ShelfActivity"
+
+        private const val YYYY_MM_DD__EEEE_HH_MM_SS = "yyyy年MM月dd日 EEEE***HH:mm:ss"
         const val SHELF_MODEL = "shelfModel"
         const val RECEIVER_DEVICE_INFO = "receiverDeviceInfo"
         const val SHELF_WEIGHT = "shelfWeight"
+        const val SHELF_INDEX = "shelfIndex"
 
-        const val PAGE_SIZE = 50
+        const val PAGE_SIZE = 100
     }
 
     private lateinit var binding: ActivityShelfBinding
@@ -60,6 +65,7 @@ class ShelfActivity : BaseActivity() {
 
     private var realWeight: Int = 0
     private var pageNo: Int = 1
+    private var shelfIndex: Int = 0
 
     private val viewModel: NetViewModel by viewModels()
 
@@ -81,19 +87,23 @@ class ShelfActivity : BaseActivity() {
         }
 
         initRecyclerView()
-//        initWeight()
+
         binding.etInputFood.run {
             addOnActionSearchListener {
                 if (text.isNullOrBlank()) {
                     toast(hint.toString())
                     return@addOnActionSearchListener
                 }
-//                loadSearchData()
+                pageNo = 1
-                viewModel.getGoodsList(
+                getGoodsList()
-                    canteenId = "1599670511042785282", goodsName = text.toString().trim()
-                )
                 KeyboardUtil.hideKeyboard(context, this)
             }
+            addTextChangedListener(afterTextChanged = {editable ->
+                if (editable.isNullOrBlank()) {
+                    pageNo = 1
+                    getGoodsList()
+                }
+            })
         }
 
         binding.btnConfirm.clickWithDebounce {
@@ -103,7 +113,7 @@ class ShelfActivity : BaseActivity() {
             }
             val data = ShelfModel(
                 shelfName = shelfModel?.shelfName,
-                goodsId = list[clickIndex].goodsId?:"",
+                goodsId = list[clickIndex].goodsId ?: "",
                 goodsName = list[clickIndex].goodsName,
                 weight = realWeight / 1000.0,
                 createTime = DateTimeUtil.formatDateTime(dateTime = Date())
@@ -128,6 +138,8 @@ class ShelfActivity : BaseActivity() {
                 //清零
                 realWeight = 0
                 binding.tvFoodWeight.text = "${realWeight}克"
+
+                SerialPortManager.send(DEVICE_INFO_CMD)
             }
             KeyboardUtil.hideKeyboard(v.context, v)
         }
@@ -147,7 +159,7 @@ class ShelfActivity : BaseActivity() {
             }
         }
 
-        registerReceiver(receiver, IntentFilter(RECEIVER_DEVICE_INFO))
+        registerReceiver(receiver, IntentFilter(RECEIVER_DEVICE_INFO + shelfModel?.deviceNo))
 
         binding.refreshLayout.let {
             it.setEnableRefresh(true)
@@ -176,7 +188,10 @@ class ShelfActivity : BaseActivity() {
 
     private fun getGoodsList() {
         viewModel.getGoodsList(
-            canteenId = App.getInstance().canteenId, pageNo = pageNo, pageSize = PAGE_SIZE
+            canteenId = App.getInstance().canteenId,
+            goodsName = binding.etInputFood.text.trim().toString(),
+            pageNo = pageNo,
+            pageSize = PAGE_SIZE
         )
     }
 
@@ -186,15 +201,20 @@ class ShelfActivity : BaseActivity() {
 
     @SuppressLint("NotifyDataSetChanged")
     private fun updateUI(data: RespData<*>) {
+        binding.include?.root?.gone()
         finishRefresh()
-        Loading.dismiss()
+        binding.root.postDelayed({ Loading.dismiss() }, 200)
         Log.d(TAG, "updateUI: ${data.toJsonString()}")
         if (data.result !is GoodsRecord) {
-            UIUtils.toast("数据错误")
+            if (pageNo == 1) {
+                loadEmptyView()
+            }
             return
         }
         if (data.result.records.isNullOrEmpty()) {
-            UIUtils.toast("数据错误")
+            if (pageNo == 1) {
+                loadEmptyView()
+            }
             return
         }
         if (pageNo == 1) {
@@ -213,15 +233,18 @@ class ShelfActivity : BaseActivity() {
     private fun showError(message: String) {
         finishRefresh()
         Loading.dismiss()
-        UIUtils.toast(message)
+        toast(message)
+        if (pageNo == 1) {
+            loadEmptyView()
+        }
     }
 
     private val receiver = object : BroadcastReceiver() {
         override fun onReceive(context: Context?, intent: Intent?) {
             intent?.let {
-                val data = it.getStringExtra(RECEIVER_DEVICE_INFO)
+//                val data = it.getStringExtra(RECEIVER_DEVICE_INFO)
-                Log.d(TAG, "onReceive: $data")
                 val weight = it.getDoubleExtra(SHELF_WEIGHT, 0.0)
+                Log.d(TAG, "getDeviceInfo:onReceive: weight=$weight")
                 realWeight = (weight * 1000).toInt()
                 binding.tvFoodWeight.text = "${realWeight}克"
             }
@@ -233,31 +256,6 @@ class ShelfActivity : BaseActivity() {
         super.onDestroy()
     }
 
-//    private fun initWeight() {
-//        realWeight = Random.nextInt(1, 5001)
-//    }
-
-//    private fun loadSearchData() {
-//        list.add(SearchModel(foodId = 1000, foodName = "菲律宾乳猪五花肉"))
-//        list.add(SearchModel(foodId = 1001, foodName = "金针菇"))
-//        list.add(SearchModel(foodId = 1002, foodName = "大菠菜"))
-//        list.add(SearchModel(foodId = 1003, foodName = "清远麻鸡块"))
-//        list.add(SearchModel(foodId = 1004, foodName = "普罗旺斯番茄"))
-//        list.add(SearchModel(foodId = 1005, foodName = "长条茄子"))
-//        list.add(SearchModel(foodId = 1006, foodName = "得莫利鱼"))
-//        list.add(SearchModel(foodId = 1007, foodName = "土豆丝"))
-//        list.add(SearchModel(foodId = 1008, foodName = "辣椒炒肉"))
-//        list.add(SearchModel(foodId = 1009, foodName = "雪菜烧豆腐"))
-//        list.add(SearchModel(foodId = 1010, foodName = "冬虫夏草炝拌芥兰苗"))
-//        list.add(
-//            SearchModel(
-//                foodId = 1011,
-//                foodName = "蘑菇玉米山药莲藕胡萝卜红枣莲子枸杞清炖排骨汤"
-//            )
-//        )
-//        searchAdapter.notifyDataSetChanged()
-//    }
-
     private val list: MutableList<GoodsModel> = mutableListOf()
     private val searchAdapter by lazy {
         SearchAdapter(list).apply {
@@ -279,8 +277,6 @@ class ShelfActivity : BaseActivity() {
         }
     }
 
-    private val YYYY_MM_DD__EEEE_HH_MM_SS = "yyyy年MM月dd日 EEEE***HH:mm:ss"
-
     private fun updateDateTime() {
         val sdf = SimpleDateFormat(YYYY_MM_DD__EEEE_HH_MM_SS, Locale.CHINA)
         val dateTime = sdf.format(Date())
@@ -308,4 +304,22 @@ class ShelfActivity : BaseActivity() {
         handler.removeCallbacks(updateTask)
     }
 
+    @SuppressLint("NotifyDataSetChanged")
+    private fun loadEmptyView() {
+        list.clear()
+        searchAdapter.notifyDataSetChanged()
+        binding.include?.let {
+            it.root.visible()
+            it.root.setOnClickListener {
+                pageNo = 1
+                getGoodsList()
+            }
+            it.ivEmptyIcon.setImageResource(R.drawable.ic_empty_gray)
+        }
+        binding.refreshLayout.run {
+            setEnableRefresh(false)
+            setEnableLoadMore(false)
+        }
+    }
+
 }

app/src/main/java/com/shuwei/intelligent/shelves/utils/DecToHex.kt

@@ -45,3 +45,49 @@ fun byteArrayToHexString(bytes: ByteArray): String {
 fun String.hexToBytes(): ByteArray = hexStringToByteArray(this)
 fun ByteArray.toHexString2(): String = byteArrayToHexString(this)
 
+fun hexToBinary(hex: String): String {
+    val hexToBinaryMap = mapOf(
+        '0' to "0000", '1' to "0001", '2' to "0010", '3' to "0011",
+        '4' to "0100", '5' to "0101", '6' to "0110", '7' to "0111",
+        '8' to "1000", '9' to "1001", 'A' to "1010", 'B' to "1011",
+        'C' to "1100", 'D' to "1101", 'E' to "1110", 'F' to "1111"
+    )
+
+    return hex.map { char ->
+        hexToBinaryMap[char] ?: throw IllegalArgumentException("非法十六进制字符: $char")
+    }.joinToString("")
+}
+
+fun binaryToHex(binary: String): String {
+    // 补齐到4的倍数长度（方便分组）
+    val paddedBinary = binary.padStart(
+        length = ((binary.length + 3) / 4) * 4,
+        padChar = '0'
+    )
+
+    // 每4位二进制对应1位十六进制
+    return paddedBinary.chunked(4).joinToString("") { nibble ->
+        when (nibble) {
+            "0000" -> "0"
+            "0001" -> "1"
+            "0010" -> "2"
+            "0011" -> "3"
+            "0100" -> "4"
+            "0101" -> "5"
+            "0110" -> "6"
+            "0111" -> "7"
+            "1000" -> "8"
+            "1001" -> "9"
+            "1010" -> "A"
+            "1011" -> "B"
+            "1100" -> "C"
+            "1101" -> "D"
+            "1110" -> "E"
+            "1111" -> "F"
+            else -> throw IllegalArgumentException("无效的二进制段: $nibble")
+        }
+    }
+        .trimStart('0')  // 去除前导零
+        .ifEmpty { "0" } // 处理全零情况
+}
+

app/src/main/java/com/shuwei/intelligent/shelves/utils/UIUtils.kt

@@ -1,14 +0,0 @@
-package com.shuwei.intelligent.shelves.utils
-
-import android.widget.Toast
-import com.shuwei.intelligent.shelves.App
-//D6DADEDB0302000001000C06
-object UIUtils {
-    fun toast(strRes: Int) {
-        Toast.makeText(App.getInstance(), strRes, Toast.LENGTH_SHORT).show()
-    }
-
-    fun toast(str: String) {
-        Toast.makeText(App.getInstance(), str, Toast.LENGTH_SHORT).show()
-    }
-}

app/src/main/res/layout-sw360dp/activity_home.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<FrameLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     xmlns:app="http://schemas.android.com/apk/res-auto"
@@ -17,4 +17,12 @@
         android:layout_marginEnd="6dp"
         tools:listitem="@layout/list_item_shelf"/>
 
-</LinearLayout>
+
+    <include
+        android:id="@+id/include"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        layout="@layout/layout_empty_view"
+        android:visibility="gone"/>
+
+</FrameLayout>

app/src/main/res/layout-sw360dp/activity_shelf.xml

@@ -156,37 +156,50 @@
                     android:textSize="15sp"
                     tools:ignore="Autofill,HardcodedText,TextFields" />
             </LinearLayout>
-            <com.scwang.smart.refresh.layout.SmartRefreshLayout
+
-                android:id="@+id/refreshLayout"
+            <FrameLayout
                 android:layout_width="match_parent"
+                android:layout_marginTop="8dp"
                 android:layout_height="0dp"
                 android:layout_weight="1">
 
-                <com.scwang.smart.refresh.header.ClassicsHeader
+                <com.scwang.smart.refresh.layout.SmartRefreshLayout
+                    android:id="@+id/refreshLayout"
                     android:layout_width="match_parent"
-                    android:layout_height="wrap_content" />
+                    android:layout_height="match_parent">
 
-                <androidx.recyclerview.widget.RecyclerView
+                    <com.scwang.smart.refresh.header.ClassicsHeader
-                    android:id="@+id/rvSearch"
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content" />
+
+                    <androidx.recyclerview.widget.RecyclerView
+                        android:id="@+id/rvSearch"
+                        android:layout_width="match_parent"
+                        android:layout_height="match_parent"
+                        android:paddingStart="12dp"
+                        android:paddingBottom="4dp"
+                        android:paddingTop="4dp"
+                        android:paddingEnd="12dp"
+                        android:clipToPadding="false"
+                        android:overScrollMode="never"
+                        tools:listitem="@layout/list_item_search"
+                        app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
+                        app:spanCount="2"
+                        tools:itemCount="10"/>
+
+                    <com.scwang.smart.refresh.footer.ClassicsFooter
+                        android:layout_width="match_parent"
+                        android:layout_height="wrap_content" />
+
+                </com.scwang.smart.refresh.layout.SmartRefreshLayout>
+
+                <include
+                    android:id="@+id/include"
                     android:layout_width="match_parent"
                     android:layout_height="match_parent"
-                    android:paddingStart="12dp"
+                    layout="@layout/layout_empty_view"
-                    android:paddingBottom="4dp"
+                    android:visibility="gone"/>
-                    android:layout_marginTop="8dp"
+            </FrameLayout>
-                    android:paddingTop="4dp"
-                    android:paddingEnd="12dp"
-                    android:clipToPadding="false"
-                    android:overScrollMode="never"
-                    tools:listitem="@layout/list_item_search"
-                    app:layoutManager="androidx.recyclerview.widget.GridLayoutManager"
-                    app:spanCount="2"
-                    tools:itemCount="10"/>
-
-                <com.scwang.smart.refresh.footer.ClassicsFooter
-                    android:layout_width="match_parent"
-                    android:layout_height="wrap_content" />
-
-            </com.scwang.smart.refresh.layout.SmartRefreshLayout>
 
 <!--            android:layout_marginTop="48dp"-->
             <com.google.android.material.button.MaterialButton

app/src/main/res/layout-sw360dp/layout_empty_view.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center"
+    android:layout_gravity="center"
+    android:orientation="vertical"
+    tools:ignore="MissingDefaultResource,UseCompoundDrawables">
+
+    <ImageView
+        android:id="@+id/ivEmptyIcon"
+        android:layout_width="120dp"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_empty_gray"
+        android:adjustViewBounds="true"
+        tools:ignore="ContentDescription" />
+
+    <TextView
+        android:id="@+id/tvEmptyContent"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/black999"
+        android:layout_marginTop="20dp"
+        android:textSize="20sp"
+        android:text="暂无数据"
+        tools:ignore="HardcodedText" />
+</LinearLayout>

app/src/main/res/layout-sw600dp/activity_shelf.xml

@@ -159,6 +159,7 @@
             <com.scwang.smart.refresh.layout.SmartRefreshLayout
                 android:id="@+id/refreshLayout"
                 android:layout_width="match_parent"
+                android:layout_marginTop="24dp"
                 android:layout_height="0dp"
                 android:layout_weight="1">
 
@@ -172,7 +173,6 @@
                     android:layout_height="match_parent"
                     android:paddingStart="36dp"
                     android:paddingBottom="12dp"
-                    android:layout_marginTop="24dp"
                     android:paddingTop="12dp"
                     android:paddingEnd="36dp"
                     android:clipToPadding="false"

app/src/main/res/layout-sw600dp/layout_empty_view.xml

@@ -0,0 +1,28 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:gravity="center"
+    android:layout_gravity="center"
+    android:orientation="vertical"
+    tools:ignore="MissingDefaultResource,UseCompoundDrawables">
+
+    <ImageView
+        android:id="@+id/ivEmptyIcon"
+        android:layout_width="270dp"
+        android:layout_height="wrap_content"
+        android:src="@drawable/ic_empty_gray"
+        android:adjustViewBounds="true"
+        tools:ignore="ContentDescription" />
+
+    <TextView
+        android:id="@+id/tvEmptyContent"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:textColor="@color/black999"
+        android:layout_marginTop="60dp"
+        android:textSize="60sp"
+        android:text="暂无数据"
+        tools:ignore="HardcodedText" />
+</LinearLayout>