From 0d56f17f3796edeea00e6e4d177dca626c7f3633 Mon Sep 17 00:00:00 2001
From: kaixed <kaixed8@gmail.com>
Date: Fri, 29 Nov 2024 10:07:03 +0800
Subject: [PATCH] =?UTF-8?q?refactor:=20=E9=87=8D=E6=9E=84conversationAdapt?=
 =?UTF-8?q?er?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

使用ListAdapter重构conversationAdapter以提高效率
---
 .../kchat/ui/adapter/ConversationAdapter.kt   | 78 ++++++++++---------
 1 file changed, 42 insertions(+), 36 deletions(-)

diff --git a/app/src/main/java/com/kaixed/kchat/ui/adapter/ConversationAdapter.kt b/app/src/main/java/com/kaixed/kchat/ui/adapter/ConversationAdapter.kt
index dbddc72..bb1f34e 100644
--- a/app/src/main/java/com/kaixed/kchat/ui/adapter/ConversationAdapter.kt
+++ b/app/src/main/java/com/kaixed/kchat/ui/adapter/ConversationAdapter.kt
@@ -3,10 +3,11 @@ package com.kaixed.kchat.ui.adapter
 import android.annotation.SuppressLint
 import android.content.Context
 import android.content.Intent
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
+import androidx.recyclerview.widget.DiffUtil
+import androidx.recyclerview.widget.ListAdapter
 import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
 import com.bumptech.glide.request.RequestOptions
@@ -16,7 +17,7 @@ import com.kaixed.kchat.R
 import com.kaixed.kchat.data.local.entity.Conversation
 import com.kaixed.kchat.databinding.ChatMainItemBinding
 import com.kaixed.kchat.ui.activity.ChatActivity
-import com.kaixed.kchat.ui.i.OnChatListItemClickListener
+import com.kaixed.kchat.ui.i.OnItemListener
 import com.kaixed.kchat.utils.TextUtil
 
 /**
@@ -24,32 +25,10 @@ import com.kaixed.kchat.utils.TextUtil
  * @Date: 2024/10/27 18:22
  */
 class ConversationAdapter(
-    private var chatLists: List<Conversation>, private val context: Context
-) : RecyclerView.Adapter<ConversationAdapter.MyViewHolder?>() {
+    private val context: Context
+) : ListAdapter<Conversation, ConversationAdapter.MyViewHolder>(ConversationDiffCallback()) {
 
-    private var onChatListItemClickListener: OnChatListItemClickListener? = null
-
-    companion object {
-        private const val TAG = "ConversationAdapter"
-    }
-
-    fun updateData(newChatLists: List<Conversation>) {
-        chatLists = newChatLists
-    }
-
-    class MyViewHolder(val binding: ChatMainItemBinding) : RecyclerView.ViewHolder(binding.root) {
-        fun bindData(chatList: Conversation, context: Context) {
-            binding.tvContent.text = chatList.lastContent.replaceSpan("[委屈]") {
-                CenterImageSpan(context, R.drawable.emoji).setDrawableSize(55)
-            }
-            binding.tvNickname.text = chatList.talkerId
-            binding.tvTimestamp.text = TextUtil.getTimestampString(chatList.timestamp)
-        }
-    }
-
-    fun setItemListener(i: OnChatListItemClickListener?) {
-        this.onChatListItemClickListener = i
-    }
+    private var onItemListener: OnItemListener? = null
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): MyViewHolder {
         val binding = ChatMainItemBinding.inflate(
@@ -59,14 +38,14 @@ class ConversationAdapter(
     }
 
     override fun onBindViewHolder(
-        holder: MyViewHolder, @SuppressLint("RecyclerView") position: Int
+        holder: MyViewHolder,
+        @SuppressLint("RecyclerView") position: Int
     ) {
-        Log.d(TAG, "onBindViewHolder: $chatLists")
         val options = RequestOptions()
             .placeholder(R.drawable.ic_default_avatar)
             .error(R.drawable.ic_default_avatar)
 
-        val chatList = chatLists[position]
+        val chatList = getItem(position)
         if (chatList.avatarUrl.isNotEmpty()) {
             Glide.with(context).load(chatList.avatarUrl).apply(options)
                 .into(holder.binding.ifvAvatar)
@@ -79,17 +58,44 @@ class ConversationAdapter(
             holder.binding.rlUnreadCount.visibility = View.INVISIBLE
         }
 
-        holder.bindData(chatLists[position], context)
+        holder.bind(chatList, context)
         holder.itemView.setOnClickListener {
-            onChatListItemClickListener!!.onItemClick(chatLists[position].talkerId)
-
+            onItemListener!!.onItemClick(chatList.talkerId)
 
             context.startActivity(Intent(context, ChatActivity::class.java).apply {
-                putExtra("contactId", chatLists[position].talkerId)
-                putExtra("contactNickname", chatLists[position].nickname)
+                putExtra("contactId", chatList.talkerId)
+                putExtra("contactNickname", chatList.nickname)
             })
         }
+
+        holder.itemView.setOnLongClickListener {
+            onItemListener!!.onItemLongClick(chatList.talkerId, chatList.nickname)
+            true
+        }
     }
 
-    override fun getItemCount(): Int = chatLists.size
+    inner class MyViewHolder(val binding: ChatMainItemBinding) :
+        RecyclerView.ViewHolder(binding.root) {
+        fun bind(chatList: Conversation, context: Context) {
+            binding.tvContent.text = chatList.lastContent.replaceSpan("[委屈]") {
+                CenterImageSpan(context, R.drawable.emoji).setDrawableSize(55)
+            }
+            binding.tvNickname.text = chatList.talkerId
+            binding.tvTimestamp.text = TextUtil.getTimestampString(chatList.timestamp)
+        }
+    }
+
+    fun setItemListener(i: OnItemListener?) {
+        this.onItemListener = i
+    }
+
+    class ConversationDiffCallback : DiffUtil.ItemCallback<Conversation>() {
+        override fun areItemsTheSame(oldItem: Conversation, newItem: Conversation): Boolean {
+            return oldItem.talkerId == newItem.talkerId
+        }
+
+        override fun areContentsTheSame(oldItem: Conversation, newItem: Conversation): Boolean {
+            return oldItem == newItem
+        }
+    }
 }