1、布局重用<include />

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"  
       android:orientation="vertical"   
       android:layout_width=”match_parent”  
       android:layout_height=”match_parent”  
       android:background="@color/app_bg"  
       android:gravity="center_horizontal">  
       <include layout="@layout/layout_title"/>  
     
       <TextView android:layout_width=”match_parent”  
                 android:layout_height="wrap_content"  
                 android:text="@string/hello"  
                 android:padding="10dp" />  
       ...  
</LinearLayout>  

View bookmarks_container_2 = findViewById(R.id.bookmarks_favourite);
bookmarks_container_2.findViewById(R.id.bookmarks_list);  

2、减少视图层级<merge />

<merge xmlns:android="http://schemas.android.com/apk/res/android">  
      
      <Button  
          android:layout_width="fill_parent"   
          android:layout_height="wrap_content"  
          android:text="@string/add"/>  
      
       <Button  
           android:layout_width="fill_parent"   
           android:layout_height="wrap_content"  
           android:text="@string/delete"/>  
</merge> 

3、需要时使用<ViewStub />

<ViewStub  
       android:id="@+id/stub_import"  
       android:inflatedId="@+id/panel_stub"  
       android:layout="@layout/progress_overlay"  
       android:layout_width="fill_parent"  
       android:layout_height="wrap_content"  
       android:layout_gravity="bottom" />

((ViewStub) findViewById(R.id.stub_import)).setVisibility(View.VISIBLE);  
// or  View importPanel = ((ViewStub) findViewById(R.id.stub_import)).inflate();

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Android的布局复用与优化

原文：http://blog.csdn.net/robertcpp/article/details/51724059