feat: 优化代码

app/src/main/res/layout/activity_main.xml

@@ -10,8 +10,7 @@
         android:layout_height="wrap_content"
         android:elevation="10dp"
         android:background="@color/background"
-        app:labelVisibilityMode="labeled"
-        app:itemIconSize="26dp"
+        app:labelVisibilityMode="unlabeled"
         app:menu="@menu/main_bnv"
         app:layout_constraintBottom_toBottomOf="parent" />
 

app/src/main/res/values/dimens.xml

@@ -1,12 +1,10 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
+<resources>
     <!-- Default screen margins, per the Android Design guidelines. -->
     <dimen name="activity_horizontal_margin">16dp</dimen>
     <dimen name="activity_vertical_margin">16dp</dimen>
     <dimen name="nav_header_vertical_spacing">8dp</dimen>
     <dimen name="nav_header_height">176dp</dimen>
     <dimen name="fab_margin">16dp</dimen>
-    <dimen name="design_bottom_navigation_active_text_size" tools:override="true">12sp</dimen>
-    <dimen name="design_bottom_navigation_text_size" tools:override="true">12sp</dimen>
 
     <dimen name="font_size_normal">14sp</dimen>
     <dimen name="font_size_middle">16sp</dimen>