编辑Launcher2/res/xml/default_toppackage.xml文件:
  

<toppackages xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher2bird13gb">

     <app

         launcher:topPackageName="com.yahoo.mobile.client.android.odp"

 launcher:topClassName="com.yahoo.mobile.client.android.odp.YahooODP"

         launcher:topOrder="4"

     />

     <app

         launcher:topPackageName="com.yahoo.mobile.client.android.im"

 launcher:topClassName="com.yahoo.mobile.client.android.im.YahooMessenger"

         launcher:topOrder="5"

     />

     <app

        launcher:topPackageName="com.yahoo.mobile.client.android.mail"

 launcher:topClassName="com.yahoo.mobile.client.android.mail.activity.YahooMail"

         launcher:topOrder="6"

     />

     <app

        launcher:topPackageName="com.yahoo.mobile.client.android.news"

 launcher:topClassName="com.yahoo.mobile.client.android.news.activity.Main"

         launcher:topOrder="7"

     />

 <app

     launcher:topPackageName="com.yahoo.mobile.client.android.finance"

 launcher:topClassName="com.yahoo.mobile.client.android.finance.activity.Main"

         launcher:topOrder="10"

     />   

 </toppackages>


 
 按照上面的格式来编辑，写明想要预制app的packageName,ClassName,以及order的值(从0开始)
 
如果是运营商项目，会有resource_overlay机制，以OP02/SPEC0200/SEGA为例，Launcher2主菜单中特定app的顺序，是以如下路径的default_toppackage.xml文件的内容为准：
alps/mediatek/source/operator/OP02/SPEC0200/SEGA/OverLayResource/packages/apps/Launcher2/res/xml/default_toppackage.xml