android Launcher3 设置默认桌面应用，供大家参考，具体内容如下

launcher3 的默认桌面应用是在 res/xml里

默认有4种样式

default_workspace_3x3.xml
default_workspace_4x4.xml
default_workspace_5x5.xml
default_workspace_5x6.xml

我们看看default_workspace_3x3.xml

<?xml version="1.0" encoding="utf-8"?><favorites xmlns:launcher="http://schemas.android.com/apk/res-auto/com.android.launcher3"> <!-- Hotseat (We use the screen as the position of the item in the hotseat) --> <!-- Messaging, [All Apps], Dialer --> <resolve launcher:container="-101" launcher:screen="0" launcher:x="0" launcher:y="0" > <favorite launcher:uri="#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_MESSAGING;end" /> <favorite launcher:uri="sms:" /> <favorite launcher:uri="smsto:" /> <favorite launcher:uri="mms:" /> <favorite launcher:uri="mmsto:" /> </resolve> <!-- All Apps --> <resolve launcher:container="-101" launcher:screen="2" launcher:x="2" launcher:y="0" > <favorite launcher:uri="#Intent;action=android.intent.action.DIAL;end" /> <favorite launcher:uri="tel:123" /> <favorite launcher:uri="#Intent;action=android.intent.action.CALL_BUTTON;end" /> </resolve> <!-- Bottom row --> <resolve launcher:screen="0" launcher:x="0" launcher:y="-1" > <favorite launcher:uri="#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_EMAIL;end" /> <favorite launcher:uri="mailto:" /> </resolve> <resolve launcher:screen="0" launcher:x="1" launcher:y="-1" > <favorite launcher:uri="#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_GALLERY;end" /> <favorite launcher:uri="#Intent;type=images/*;end" /> </resolve> <resolve launcher:screen="0" launcher:x="2" launcher:y="-1" > <favorite launcher:uri="#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_MARKET;end" /> <favorite launcher:uri="market://details?id=com.android.launcher" /> </resolve> <!-- Second last row --> <resolve launcher:screen="0" launcher:x="0" launcher:y="-2" > <favorite launcher:uri="#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_BROWSER;end" /> <favorite launcher:uri="http://.android.dialer" //应用包名 /></resolve>

其他说明
x,y,screen

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