perf: reduce high-refresh ui churn

android/app/src/test/java/com/hyzq/boss/BossUiConversationRowTest.java

@@ -103,6 +103,39 @@ public class BossUiConversationRowTest {
         assertEquals("上下文环本体应更细更轻", BossUi.dp(context, 16), ringWrap.getChildAt(0).getLayoutParams().height);
     }
 
+    @Test
+    public void buildConversationRow_usesStaticActivityDotsForHighRefreshSmoothness() {
+        Context context = RuntimeEnvironment.getApplication();
+        WechatSurfaceMapper.ConversationRow row = new WechatSurfaceMapper.ConversationRow(
+                "硬件审计协作",
+                "Mac Studio",
+                "检查摄像头供电链路",
+                "09:42",
+                0,
+                "",
+                2,
+                false,
+                "M",
+                "W",
+                new WechatSurfaceMapper.GroupAvatarMember[0],
+                false,
+                null,
+                null,
+                -1,
+                false,
+                false
+        );
+
+        LinearLayout rowView = BossUi.buildConversationRow(context, row, null);
+        LinearLayout trailingColumn = (LinearLayout) rowView.getChildAt(2);
+        LinearLayout activityWrap = (LinearLayout) trailingColumn.getChildAt(1);
+        View firstDot = activityWrap.getChildAt(0);
+
+        assertEquals("高刷设备上活动点应保持静态，不再从低 alpha 开始做无限动画", 0.92f, firstDot.getAlpha(), 0.01f);
+        assertEquals("高刷设备上活动点不应缩放动画起步", 1f, firstDot.getScaleX(), 0.01f);
+        assertEquals("高刷设备上活动点不应缩放动画起步", 1f, firstDot.getScaleY(), 0.01f);
+    }
+
     @Test
     public void buildConversationRow_usesSubtlePinnedBackgroundWithoutPinnedBadge() {
         Context context = RuntimeEnvironment.getApplication();