测试修改

live/src/main/res/drawable/shape_tab_indicator.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item
+        android:width="14dp"
+        android:height="3dp"
+        android:gravity="center">
+        <shape>
+            <corners android:radius="1.5dp" />
+            <!--color无效，源码用tabIndicatorColor-->
+            <solid android:color="@color/colorPrimary" />
+        </shape>
+    </item>
+</layer-list>