launcher修改--修改launcher的屏幕数

首先，在Launcher.java代码中

修改这两段

static final int SCREEN_COUNT = 5;  
static final int DEFAULT_SCREEN = 2;//第一页是从0开始计数，这里是把第三个页面作为默认首页

然后选中项目，选择Search>File，输入defaultscreen勾选Selected Resources点击搜索，，会找到好几个结果，作相应的更改即可

<com.android.launcher2.DragLayer
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher"

    android:id="@+id/drag_layer"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <include layout="@layout/all_apps" />

    <!-- The workspace contains 3 screens of cells -->
    <com.android.launcher2.Workspace
        android:id="@+id/workspace"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:scrollbars="horizontal"
        android:fadeScrollbars="true"
        launcher:defaultScreen="2">

        <include android:id="@+id/cell1" layout="@layout/workspace_screen" />
        <include android:id="@+id/cell2" layout="@layout/workspace_screen" />
        <include android:id="@+id/cell3" layout="@layout/workspace_screen" />
        <include android:id="@+id/cell4" layout="@layout/workspace_screen" />
        <include android:id="@+id/cell5" layout="@layout/workspace_screen" />

    </com.android.launcher2.Workspace>

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