Android Launcher2 修改workspace屏幕数量

最新推荐文章于 2025-03-23 00:15:00 发布

原创最新推荐文章于 2025-03-23 00:15:00 发布 · 2.1k 阅读

2 ·

CC 4.0 BY-SA版权

【Launcher2 分析与修改】专栏收录该内容

5 篇文章

订阅专栏

本文介绍了如何修改Android Launcher2的默认workspace屏幕数量，从五个变为一个。通过调整代码，实现 workspace 屏幕数量的静态更改，适用于横屏（layout-land）和竖屏（layout-port）布局。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Android Launcher2默认是有五个屏幕的，而且数量不是动态改变的。那么代码上我们该如何改变屏幕的数量呢。

这里假设我们要修改成只有一个屏幕的workspace，步骤如下：

1、Launcher.java中，

原来：

	static final int SCREEN_COUNT = 5;// 五屏
	static final int DEFAULT_SCREEN = 2;// 默认屏幕为中间的屏幕

改成：

	static final int SCREEN_COUNT = 1;// 一个屏
	static final int DEFAULT_SCREEN = 0;// 默认屏幕为中间的屏幕

2、res/layout-land/launcher.xml

原来：

  <com.android.launcher2.Workspace
            android:id="@+id/workspace"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingLeft="@dimen/workspace_left_padding"
            android:paddingRight="@dimen/workspace_right_padding"
            android:paddingTop="@dimen/workspace_top_padding"
            android:paddingBottom="@dimen/workspace_bottom_padding"
            launcher:defaultScreen="2"
            launcher:cellCountX="@integer/cell_count_x"
            launcher:cellCountY="@integer/cell_count_y"
            launcher:pageSpacing="@dimen/workspace_page_spacing"
            launcher:scrollIndicatorPaddingLeft="@dimen/qsb_bar_height"
            launcher:scrollIndicatorPaddingRight="@dimen/button_bar_height">

            <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>

改成：只留下一个 include即可，并且 launcher:defaultScreen="2"改成 launcher:defaultScreen="0"

        <com.android.launcher2.Workspace
            android:id="@+id/workspace"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingLeft="@dimen/workspace_left_padding"
            android:paddingRight="@dimen/workspace_right_padding"
            android:paddingTop="@dimen/workspace_top_padding"
            android:paddingBottom="@dimen/workspace_bottom_padding"
            launcher:defaultScreen="2"
            launcher:cellCountX="@integer/cell_count_x"
            launcher:cellCountY="@integer/cell_count_y"
            launcher:pageSpacing="@dimen/workspace_page_spacing"
            launcher:scrollIndicatorPaddingLeft="@dimen/qsb_bar_height"
            launcher:scrollIndicatorPaddingRight="@dimen/button_bar_height">

            <include android:id="@+id/cell1" layout="@layout/workspace_screen" />
        
        </com.android.launcher2.Workspace>

3、res/layout-port/launcher.xml

原来：

        <com.android.launcher2.Workspace
            android:id="@+id/workspace"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingLeft="@dimen/workspace_left_padding"
            android:paddingRight="@dimen/workspace_right_padding"
            android:paddingTop="@dimen/workspace_top_padding"
            android:paddingBottom="@dimen/workspace_bottom_padding"
            launcher:defaultScreen="0"
            launcher:cellCountX="@integer/cell_count_x"
            launcher:cellCountY="@integer/cell_count_y"
            launcher:pageSpacing="@dimen/workspace_page_spacing"
            launcher:scrollIndicatorPaddingLeft="@dimen/workspace_divider_padding_left"
            launcher:scrollIndicatorPaddingRight="@dimen/workspace_divider_padding_right">

            <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>

改成：只留下一个 include即可，并且 launcher:defaultScreen="2"改成 launcher:defaultScreen="0"

      <com.android.launcher2.Workspace
            android:id="@+id/workspace"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:paddingLeft="@dimen/workspace_left_padding"
            android:paddingRight="@dimen/workspace_right_padding"
            android:paddingTop="@dimen/workspace_top_padding"
            android:paddingBottom="@dimen/workspace_bottom_padding"
            launcher:defaultScreen="0"
            launcher:cellCountX="@integer/cell_count_x"
            launcher:cellCountY="@integer/cell_count_y"
            launcher:pageSpacing="@dimen/workspace_page_spacing"
            launcher:scrollIndicatorPaddingLeft="@dimen/workspace_divider_padding_left"
            launcher:scrollIndicatorPaddingRight="@dimen/workspace_divider_padding_right">

            <include android:id="@+id/cell1" layout="@layout/workspace_screen" />
        </com.android.launcher2.Workspace>

需要注意的是，上面的数据都需要改才行，如果只单是该res/layout-land/launcher.xml，而不改res/layout-port/launcher.xm是不行的。

此外layout-land 适配的是横屏的ui，layout-port适配的是竖屏的ui。