[Modify]修復公會消息bug

app/src/main/java/com/yizhuan/erban/ui/im/MessageListPanelEx.java

@@ -1,5 +1,7 @@
 package com.yizhuan.erban.ui.im;
 
+import android.animation.ObjectAnimator;
+import android.animation.ValueAnimator;
 import android.app.Activity;
 import android.content.ActivityNotFoundException;
 import android.content.Intent;
@@ -10,7 +12,9 @@ import android.os.Handler;
 import android.text.TextUtils;
 import android.util.Pair;
 import android.view.View;
+import android.widget.FrameLayout;
 import android.widget.ImageView;
+import android.widget.RelativeLayout;
 
 import androidx.recyclerview.widget.LinearLayoutManager;
 import androidx.recyclerview.widget.RecyclerView;
@@ -120,6 +124,8 @@ public class MessageListPanelEx {
     // 待转发消息
     private IMMessage forwardMessage;
     private CountDownTimer countDownTimer;
+    private boolean isShowAnim = false;
+
     private OnItemClickListener listener = new OnItemClickListener() {
         @Override
         public void onItemClick(IRecyclerView adapter, View view, int position) {
@@ -855,10 +861,10 @@ public class MessageListPanelEx {
             }
         }
 
-        private int getLoadMsgCount(){
+        private int getLoadMsgCount() {
-            if(TextUtils.isEmpty(recordId)){
+            if (TextUtils.isEmpty(recordId)) {
                 return NimUIKitImpl.getOptions().messageCountLoadOnce;
-            }else {
+            } else {
                 return 50;
             }
         }
@@ -940,7 +946,7 @@ public class MessageListPanelEx {
             if (firstLoad) {
                 doScrollToBottom();
                 sendReceipt(); // 发送已读回执
-                if (!TextUtils.isEmpty(recordId)) {
+                if (!TextUtils.isEmpty(recordId) && !isShowAnim) {
                     doScrollToPosition();
                 }
             }
@@ -956,6 +962,28 @@ public class MessageListPanelEx {
                     int index = getApplyItemIndex(recordId);
                     if (index >= 0 && index < items.size()) {
                         messageListView.scrollToPosition(index);
+                        messageListView.getViewTreeObserver().addOnGlobalLayoutListener(() -> {
+                            // 默认选中第一个
+                            RecyclerView.LayoutManager layoutManager = messageListView.getLayoutManager();
+                            if (layoutManager != null) {
+                                View view = layoutManager.findViewByPosition(index);
+                                RelativeLayout relativeLayout = (RelativeLayout) view; //获取布局中任意控件对象
+                                FrameLayout frameLayout = null;
+                                if (relativeLayout != null) {
+                                    frameLayout = relativeLayout.findViewById(R.id.message_item_content);
+                                }
+                                if (frameLayout != null) {
+                                    //透明度起始为1，结束时为0
+                                    ObjectAnimator animator = ObjectAnimator.ofFloat(frameLayout, "alpha", 0f, 1f);
+                                    animator.setDuration(1500);//时间1s
+                                    animator.setRepeatCount(1);
+                                    animator.setRepeatMode(ValueAnimator.RESTART);
+                                    animator.start();
+
+                                    isShowAnim = true;
+                                }
+                            }
+                        });
                     }
                 }
             }, 500);