优化
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@@ -7,16 +7,27 @@
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android:layout_height="match_parent"
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tools:context=".MainActivity">
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<!-- 页面内容区域:用于切换 Fragment -->
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<androidx.fragment.app.FragmentContainerView
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android:id="@+id/nav_host_fragment"
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android:name="androidx.navigation.fragment.NavHostFragment"
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<FrameLayout
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android:id="@+id/root_container"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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app:navGraph="@navigation/nav_graph"
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app:defaultNavHost="true" />
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android:layout_height="match_parent">
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<!-- 3个Tab NavHost 都 add 到这里 -->
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<androidx.fragment.app.FragmentContainerView
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android:id="@+id/tab_container"
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android:layout_width="match_parent"
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android:layout_height="match_parent"/>
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<!-- 全局页面覆盖层(login/recharge等) -->
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<androidx.fragment.app.FragmentContainerView
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android:id="@+id/global_container"
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android:name="androidx.navigation.fragment.NavHostFragment"
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android:layout_width="match_parent"
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android:layout_height="match_parent"
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android:visibility="gone" />
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</FrameLayout>
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<!-- 底部导航栏 -->
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<com.google.android.material.bottomnavigation.BottomNavigationView
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android:id="@+id/bottom_nav"
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android:layout_width="match_parent"
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@@ -27,4 +38,4 @@
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app:itemIconTint="@null"
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app:itemTextColor="@color/nav_text_color"/>
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</androidx.coordinatorlayout.widget.CoordinatorLayout>
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</androidx.coordinatorlayout.widget.CoordinatorLayout>
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