android Launcher3 设置默认桌面应用

android Launcher3 设置默认桌面应用

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

"1.0" encoding="utf-8"?>
"http://schemas.android.com/apk/res-auto/com.android.launcher3">

    
    

    "-101"
        launcher:screen="0"
        launcher:x="0"
        launcher:y="0" >
        "#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_MESSAGING;end" />
        "sms:" />
        "smsto:" />
        "mms:" />
        "mmsto:" />
    

    

    "-101"
        launcher:screen="2"
        launcher:x="2"
        launcher:y="0" >
        "#Intent;action=android.intent.action.DIAL;end" />
        "tel:123" />
        "#Intent;action=android.intent.action.CALL_BUTTON;end" />
    

    
    "0"
        launcher:x="0"
        launcher:y="-1" >
        "#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_EMAIL;end" />
        "mailto:" />
    

    "0"
        launcher:x="1"
        launcher:y="-1" >
        "#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_GALLERY;end" />
        "#Intent;type=images/*;end" />
    

    "0"
        launcher:x="2"
        launcher:y="-1" >
        "#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_MARKET;end" />
        "market://details?id=com.android.launcher" />
    

    
    "0"
        launcher:x="0"
        launcher:y="-2" >
        "#Intent;action=android.intent.action.MAIN;category=android.intent.category.APP_BROWSER;end" />
        "http://www.example.com/" />
    

    "0"
        launcher:x="2"
        launcher:y="-2" >
        "#Intent;action=android.media.action.STILL_IMAGE_CAMERA;end" />
        "#Intent;action=android.intent.action.CAMERA_BUTTON;end" />
    

几个属性说明

    "-101"//-101应该代表是hotseat，也就是说此应用将处于hotseat里
        launcher:screen="0"//应用所处屏幕
        launcher:x="0"//应用图标所处x位置
        launcher:y="0" >//应用图标所处y位置 
        //标明这是快捷方式
        launcher:className="com.android.dialer.DialtactsActivity"//点击图标启动的类
        launcher:packageName="com.android.dialer" //应用包名  />
    

其他说明
x,y,screen