launcher学习

luancher的主布局文件：launcher.xml

<?xml version="1.0" encoding="utf-8"?><!-- Copyright (C) 2007 The Android Open Source Project     Licensed under the Apache License, Version 2.0 (the "License");     you may not use this file except in compliance with the License.     You may obtain a copy of the License at          http://www.apache.org/licenses/LICENSE-2.0     Unless required by applicable law or agreed to in writing, software     distributed under the License is distributed on an "AS IS" BASIS,     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.     See the License for the specific language governing permissions and     limitations under the License.--><!-- Full screen view projects under the status bar and contains the background --><FrameLayout    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher"    android:id="@+id/launcher"    android:layout_width="match_parent"    android:layout_height="match_parent"    android:background="@drawable/workspace_bg">    <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:background="@drawable/workspace_bg"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:fitsSystemWindows="true">        <!-- Keep these behind the workspace so that they are not visible when             we go into AllApps -->        <include            android:id="@+id/dock_divider"            layout="@layout/workspace_divider"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:layout_marginBottom="@dimen/button_bar_height_plus_padding"            android:layout_gravity="bottom|center_horizontal" />        <include            android:id="@+id/paged_view_indicator"            layout="@layout/scroll_indicator"            android:layout_width="wrap_content"            android:layout_height="wrap_content"            android:layout_gravity="bottom"            android:layout_marginBottom="@dimen/button_bar_height_plus_padding" />        <!-- The workspace contains 5 screens of cells 工作空间-->        <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="3"            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" />   <!-- 5页-->            <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>        <include layout="@layout/hotseat"<!-- 下方的快捷方式-->            android:id="@+id/hotseat"            android:layout_width="match_parent"            android:layout_height="@dimen/button_bar_height_plus_padding"            android:layout_gravity="bottom" />        <include            android:id="@+id/qsb_bar"            layout="@layout/qsb_bar" />        <!-- The Workspace cling must appear under the AppsCustomizePagedView below to ensure             that it is still visible during the transition to AllApps and doesn't overlay on             top of that view. -->        <include layout="@layout/workspace_cling"<!-- 第一次进Home显示-->            android:id="@+id/workspace_cling"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:visibility="gone" />        <include layout="@layout/folder_cling"<!-- 第一次进文件夹存储快捷方式显示-->            android:id="@+id/folder_cling"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:visibility="gone" />        <com.android.launcher2.DrawableStateProxyView            android:id="@+id/voice_button_proxy"            android:layout_width="80dp"            android:layout_height="@dimen/qsb_bar_height"            android:layout_marginRight="@dimen/qsb_voice_proxy_padding_right"            android:layout_gravity="top|right"            android:clickable="true"            android:onClick="onClickVoiceButton"            android:importantForAccessibility="no"            launcher:sourceViewId="@+id/voice_button" />        <include layout="@layout/apps_customize_pane"<!-- 所有应用界面-->            android:id="@+id/apps_customize_pane"            android:layout_width="match_parent"            android:layout_height="match_parent"            android:visibility="invisible" />    </com.android.launcher2.DragLayer></FrameLayout>

apps_customize_pane.xml

<?xml version="1.0" encoding="utf-8"?><!-- Copyright (C) 2011 The Android Open Source Project     Licensed under the Apache License, Version 2.0 (the "License");     you may not use this file except in compliance with the License.     You may obtain a copy of the License at          http://www.apache.org/licenses/LICENSE-2.0     Unless required by applicable law or agreed to in writing, software     distributed under the License is distributed on an "AS IS" BASIS,     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.     See the License for the specific language governing permissions and     limitations under the License.--><com.android.launcher2.AppsCustomizeTabHost    xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher">    <LinearLayout        android:id="@+id/apps_customize_content"        android:orientation="vertical"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:visibility="gone"        android:layoutDirection="ltr">        <!-- The layout_width of the tab bar gets overriden to align the content             with the text in the tabs in AppsCustomizeTabHost. -->        <FrameLayout            android:id="@+id/tabs_container"            android:layout_width="wrap_content"            android:layout_height="@dimen/apps_customize_tab_bar_height"            android:layout_marginTop="@dimen/apps_customize_tab_bar_margin_top"            android:layout_gravity="center_horizontal">            <com.android.launcher2.FocusOnlyTabWidget                android:id="@android:id/tabs"                android:layout_width="match_parent"                android:layout_height="match_parent"                android:layout_gravity="left"                android:background="@drawable/tab_unselected_holo"                android:tabStripEnabled="false"                android:divider="@null" />            <include                android:id="@+id/market_button"                layout="@layout/market_button"                android:layout_width="wrap_content"                android:layout_height="match_parent"                android:layout_gravity="right" />        </FrameLayout>        <FrameLayout <!-- 所有应用界面显示-->            android:id="@android:id/tabcontent"            android:layout_width="match_parent"            android:layout_height="match_parent">            <com.android.launcher2.AppsCustomizePagedView                android:id="@+id/apps_customize_pane_content"                android:layout_width="match_parent"                android:layout_height="match_parent"                launcher:maxAppCellCountX="@integer/apps_customize_maxCellCountX"                launcher:maxAppCellCountY="@integer/apps_customize_maxCellCountY"                launcher:pageLayoutWidthGap="@dimen/apps_customize_pageLayoutWidthGap"                launcher:pageLayoutHeightGap="@dimen/apps_customize_pageLayoutHeightGap"                launcher:pageLayoutPaddingTop="@dimen/apps_customize_pageLayoutPaddingTop"                launcher:pageLayoutPaddingBottom="@dimen/apps_customize_pageLayoutPaddingBottom"                launcher:pageLayoutPaddingLeft="@dimen/apps_customize_pageLayoutPaddingLeft"                launcher:pageLayoutPaddingRight="@dimen/apps_customize_pageLayoutPaddingRight"                launcher:widgetCellWidthGap="@dimen/apps_customize_widget_cell_width_gap"                launcher:widgetCellHeightGap="@dimen/apps_customize_widget_cell_height_gap"                launcher:widgetCountX="@integer/apps_customize_widget_cell_count_x"                launcher:widgetCountY="@integer/apps_customize_widget_cell_count_y"                launcher:clingFocusedX="@integer/apps_customize_cling_focused_x"                launcher:clingFocusedY="@integer/apps_customize_cling_focused_y"                launcher:maxGap="@dimen/workspace_max_gap" />            <FrameLayout                android:id="@+id/animation_buffer"                android:layout_width="match_parent"                android:layout_height="match_parent"                android:visibility="gone" />            <include                android:id="@+id/paged_view_indicator"                layout="@layout/scroll_indicator"                android:layout_width="wrap_content"                android:layout_height="wrap_content"                android:layout_gravity="bottom" />        </FrameLayout>    </LinearLayout>    <include layout="@layout/all_apps_cling"<!-- 第一次进所以应用界面显示-->        android:id="@+id/all_apps_cling"        android:layout_width="match_parent"        android:layout_height="match_parent"        android:visibility="gone" /></com.android.launcher2.AppsCustomizeTabHost>

1、device\rockchip\rk30sdk\overlay\packages\apps\Launcher2\res\xml-sw720dp\default_workspace.xml等同于launcher相应目录下的文件，用来控制开机第一次加载的快捷方式和widage

<?xml version="1.0" encoding="utf-8"?><!-- Copyright (C) 2009 The Android Open Source Project     Licensed under the Apache License, Version 2.0 (the "License");     you may not use this file except in compliance with the License.     You may obtain a copy of the License at          http://www.apache.org/licenses/LICENSE-2.0     Unless required by applicable law or agreed to in writing, software     distributed under the License is distributed on an "AS IS" BASIS,     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.     See the License for the specific language governing permissions and     limitations under the License.--><favorites xmlns:launcher="http://schemas.android.com/apk/res/com.android.launcher">    <!-- Far-left screen [0] -->    <!-- Left screen [1] -->    <appwidget        launcher:packageName="com.android.settings"        launcher:className="com.android.settings.widget.SettingsAppWidgetProvider"        launcher:screen="1"        launcher:x="0"        launcher:y="3"        launcher:spanX="4"        launcher:spanY="1" />    <!-- Middle screen [2] -->    <appwidget        launcher:packageName="com.android.deskclock"        launcher:className="com.android.alarmclock.AnalogAppWidgetProvider"        launcher:screen="2"        launcher:x="1"        launcher:y="0"        launcher:spanX="2"        launcher:spanY="2" />    <favorite        launcher:packageName="com.android.camera"        launcher:className="com.android.camera.Camera"        launcher:screen="2"        launcher:x="0"        launcher:y="3" />    <!-- Right screen [3] -->    <favorite        launcher:packageName="com.android.gallery3d"        launcher:className="com.android.gallery3d.app.Gallery"        launcher:screen="3"        launcher:x="1"        launcher:y="3" />    <favorite        launcher:packageName="com.android.settings"        launcher:className="com.android.settings.Settings"        launcher:screen="3"        launcher:x="2"        launcher:y="3" />    <!-- Far-right screen [4] -->    <!-- Hotseat -->    <favorite        launcher:packageName="com.android.gallery3d"        launcher:className="com.android.gallery3d.app.Gallery"        launcher:container="-101"        launcher:screen="2"        launcher:x="2"        launcher:y="0" />    <favorite        launcher:packageName="com.android.browser"        launcher:className="com.android.browser.BrowserActivity"        launcher:container="-101"        launcher:screen="3"        launcher:x="3"        launcher:y="0" />    <favorite        launcher:packageName="com.android.settings"        launcher:className="com.android.settings.Settings"        launcher:container="-101"        launcher:screen="5"        launcher:x="5"        launcher:y="0" />    <favorite        launcher:packageName="com.android.music"        launcher:className="com.android.music.MusicBrowserActivity"        launcher:container="-101"        launcher:screen="6"        launcher:x="6"        launcher:y="0" /></favorites>

x ,y 表示相应网格中的位置,screen表示在第几屏，spanx、spany表示widget占的空间

2、packages\apps\Launcher2\res\values-sw720dp\config.xml

cell_count_x 表示一行可以显示多少个快捷方式

3、packages\apps\Launcher2\res\layout-land\launcher.xml

Workspace的defaultScreen表示缺省显示第几屏

4、显示壁纸

packages\apps\Launcher2\res\layout\apps_customize_pane.xml

去掉所有android:background="#FF000000"

另外\packages\apps\Launcher2\src\com\android\launcher2\Launcher.java所有调用updateWallpaperVisibility参数修改为true

还有showAppsCustomizeHelper函数中进行如下调整，要不下面的快捷方式在进入所有应用界面时消失会有延时

5、循环滚屏调整

launcher学习_第1张图片