Launcher3 去掉桌面搜索索框

ItJavawfc2024-11-03 17:08

文章目录

需求

Launcher3 去掉搜桌面索框

实现需求说明

  • 每个平台平台源码有区别，比如：MTK、高通、展讯、RK、谷歌...
  • 单个平台下 不同Android版本对应的模块源码也不一样

当前针对的是MTK Android12 来实现去掉搜索框功能，其它平台可借鉴部分实现思路。网上部分资料也因为不同平台不同版本，可能只能解决部分问题。实际还是需要自己针对性看源码，分析源码实现。

搜索框 有两部分： 主界面和所有应用的谷歌搜索框

参考资料

为了方便了解Launcher3，建议还是熟悉下相关Launcher3 知识点
菜鸟成长之路-源码分析专栏
Android Launcher3 简介
Launcher3 高端定制
Launcher3 开发
Launcher3 Android Code Search在线源码查看
Launcher3 xref 在线源码查看
Launcher3 RK 源码查看
Launcher3 解析
Launcher3 AndroidP AS版本
谷歌Launcher3 Android13源码修改
Launcher3 和　Launcher3QuickStep　区别
Android14 不分Launcher3修改
Launcher3 LoaderTask 的数据加载
Android14 浅析Launcher
Android O Launcher3-Workspace加载

修改文件

java 复制代码 
packages/apps/Launcher3/res/layout/search_container_workspace.xml
packages/apps/Launcher3/src/com/android/launcher3/Workspace.java
packages/apps/Launcher3/res/layout/secondary_launcher.xml

实现思路

首页显示的搜索框去除

去除首页的搜索框思路方法基本一致，search_container_workspace.xml 修改：屏蔽Fragment 配置

java 复制代码 
<com.android.launcher3.qsb.QsbContainerView
        xmlns:android="http://schemas.android.com/apk/res/android"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:id="@id/search_container_workspace"
        android:padding="0dp" >

<!-- 
注释这一段
    <fragment
        android:name="com.android.launcher3.qsb.QsbContainerView$QsbFragment"
        android:layout_width="match_parent"
        android:tag="qsb_view"
        android:layout_height="match_parent"/>-->
</com.android.launcher3.qsb.QsbContainerView>

Workspace.java 文件修改

java 复制代码 
bindAndInitFirstWorkspaceScreen  方法中，屏蔽

 // Add the first page
        CellLayout firstPage = insertNewWorkspaceScreen(Workspace.FIRST_SCREEN_ID, getChildCount());
        // Always add a QSB on the first screen.
        if (mQsb == null) {
            // In transposed layout, we add the QSB in the Grid. As workspace does not touch the
            // edges, we do not need a full width QSB.
            mQsb = LayoutInflater.from(getContext())
                    .inflate(R.layout.search_container_workspace, firstPage, false);
        }

        int cellVSpan = FeatureFlags.EXPANDED_SMARTSPACE.get()
                ? EXPANDED_SMARTSPACE_HEIGHT : DEFAULT_SMARTSPACE_HEIGHT;
        CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, twoQsb?1:0, firstPage.getCountX(),
                cellVSpan);
        lp.canReorder = false;
        if (!firstPage.addViewToCellLayout(mQsb, 0, R.id.search_container_workspace, lp, true)) {
            Log.e(TAG, "Failed to add to item at (0, 0) to CellLayout");
            mQsb = null;
        }

应用列表中的搜索框去除

实际这个需求实现， 在不同的平台和版本区别很大，借鉴解决思路。

解决方案

解决方案：找到对应表的布局，将布局中的View

com.android.launcher3.allapps.search.AppsSearchContainerLayout 设置为GONE 状态

代码跟踪

首先看Launcher 目录有一个allapps： 自己猜是所有app 的意思吧

看着像的就去看一下源码 ![(https://i-blog.csdnimg.cn/direct/6e65499862dc4d60a68dc2f1d2878f46.png)

在AllAppsContainerView.java 文件中有这样一段代码，初始化View

java 复制代码 
这个search 相关的 search_container_all_apps，看着像

        mSearchContainer = findViewById(R.id.search_container_all_apps);
        mSearchUiManager = (SearchUiManager) mSearchContainer;
        mSearchUiManager.initializeSearch(this);
	   mSearchContainer.setVisibility(View.GONE);

那就找 search_container_all_apps ，grep -rn search_container_all_apps 一次

java 复制代码 
fise4@ubuntu-PowerEdge-R730:~/Android/mt6769-alps-release-s0.mp1.rc/alps-release-s0.mp1.rc$ grep -rn "search_container_all_apps"
packages/apps/Launcher3/res/values/config.xml:108:    <item type="id" name="search_container_all_apps" />
packages/apps/Launcher3/res/layout/all_apps_tabs.xml:23:    android:layout_below="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/secondary_launcher.xml:65:            android:layout_below="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/secondary_launcher.xml:102:            android:id="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/all_apps_content_layout.xml:21:    android:layout_below="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/all_apps_rv_layout.xml:22:    android:layout_below="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/all_apps_fast_scroller.xml:24:        android:layout_below="@+id/search_container_all_apps"
packages/apps/Launcher3/res/layout/all_apps_fast_scroller.xml:33:        android:layout_below="@+id/search_container_all_apps"
packages/apps/Launcher3/res/layout/search_container_all_apps.xml:18:    android:id="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/all_apps.xml:36:        android:layout_below="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/all_apps.xml:48:        layout="@layout/search_container_all_apps"/>
packages/apps/Launcher3/src/com/android/launcher3/allapps/AllAppsContainerView.java:378:        mSearchContainer = findViewById(R.id.search_container_all_apps);
packages/apps/Launcher3/src/com/android/launcher3/allapps/AllAppsContainerView.java:382:		Log.d(TAG," findViewById search_container_all_apps     GONE");
packages/apps/Launcher3/tests/tapl/com/android/launcher3/tapl/AllAppsFromOverview.java:51:                    allAppsContainer, "search_container_all_apps");
packages/apps/Launcher3/tests/tapl/com/android/launcher3/tapl/AllApps.java:203:        return mLauncher.waitForObjectInContainer(allAppsContainer, "search_container_all_apps");

整理出有用的信息如下

java 复制代码 
packages/apps/Launcher3/res/values/config.xml:108:    <item type="id" name="search_container_all_apps" />
packages/apps/Launcher3/res/layout/secondary_launcher.xml:102:            android:id="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/search_container_all_apps.xml:18:    android:id="@id/search_container_all_apps"
packages/apps/Launcher3/res/layout/all_apps.xml:48:        layout="@layout/search_container_all_apps"/>

再次搜索对应的文件

  • secondary_launcher.xml 找到 SecondaryDisplayLauncher.java 对应
  • search_container_all_apps.xml -> 无
  • all_apps.xml -> 无

我们看看secondary_launcher.xml 发现有一个搜索的View, AppsSearchContainerLayout 设置为GONE 状态，就是 search_container_all_apps 对应的View

java 复制代码 
<?xml version="1.0" encoding="utf-8"?>
<com.android.launcher3.secondarydisplay.SecondaryDragLayer
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:id="@+id/drag_layer"
    android:padding="@dimen/dynamic_grid_edge_margin">

    <GridView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_marginBottom="100dp"
        android:theme="@style/HomeScreenElementTheme"
        android:layout_gravity="center_horizontal|top"
        android:layout_margin="@dimen/dynamic_grid_edge_margin"
        android:id="@+id/workspace_grid" />

    <ImageButton
        android:id="@+id/all_apps_button"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_gravity="bottom|end"
        android:layout_margin="40dp"
        android:padding="16dp"
        android:src="@drawable/ic_apps"
        android:background="@drawable/bg_all_apps_button"
        android:contentDescription="@string/all_apps_button_label"
        android:onClick="onAppsButtonClicked" />

    <com.android.launcher3.allapps.AllAppsContainerView
        android:id="@+id/apps_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:clipChildren="true"
        android:clipToPadding="false"
        android:focusable="false"
        android:saveEnabled="false"
        android:layout_gravity="bottom|end"
        android:background="@drawable/round_rect_primary"
        android:elevation="2dp"
        android:visibility="invisible" >

        <include
            layout="@layout/all_apps_rv_layout"
            android:visibility="gone" />

        <com.android.launcher3.allapps.FloatingHeaderView
            android:id="@+id/all_apps_header"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_below="@id/search_container_all_apps"
            android:clipToPadding="false"
            android:paddingTop="@dimen/all_apps_header_top_padding"
            android:orientation="vertical" >

            <com.android.launcher3.workprofile.PersonalWorkSlidingTabStrip
                android:id="@+id/tabs"
                android:layout_width="match_parent"
                android:layout_height="@dimen/all_apps_header_pill_height"
                android:orientation="horizontal"
                style="@style/TextHeadline">

                <Button
                    android:id="@+id/tab_personal"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:background="?android:attr/selectableItemBackground"
                    android:text="@string/all_apps_personal_tab"
                    android:textAllCaps="true"
                    android:textColor="@color/all_apps_tab_text"
                    android:textSize="14sp" />

                <Button
                    android:id="@+id/tab_work"
                    android:layout_width="0dp"
                    android:layout_height="match_parent"
                    android:layout_weight="1"
                    android:background="?android:attr/selectableItemBackground"
                    android:text="@string/all_apps_work_tab"
                    android:textAllCaps="true"
                    android:textColor="@color/all_apps_tab_text"
                    android:textSize="14sp" />
            </com.android.launcher3.workprofile.PersonalWorkSlidingTabStrip>
        </com.android.launcher3.allapps.FloatingHeaderView>

        <com.android.launcher3.allapps.search.AppsSearchContainerLayout
            android:id="@id/search_container_all_apps"
            android:layout_width="match_parent"
            android:layout_height="@dimen/all_apps_search_bar_field_height"
            android:layout_centerHorizontal="true"
            android:layout_gravity="top|center_horizontal"
            android:background="@drawable/bg_all_apps_searchbox"
            android:elevation="1dp"
            android:focusableInTouchMode="true"
            android:gravity="center"
            android:hint="@string/all_apps_search_bar_hint"
            android:imeOptions="actionSearch|flagNoExtractUi"
            android:inputType="text|textNoSuggestions|textCapWords"
            android:maxLines="1"
            android:padding="8dp"
            android:saveEnabled="false"
            android:scrollHorizontally="true"
            android:singleLine="true"
            android:textColor="?android:attr/textColorSecondary"
            android:textColorHint="@drawable/all_apps_search_hint"
            android:textSize="16sp"
            android:visibility="gone"
			/>

        <include layout="@layout/all_apps_fast_scroller" />
    </com.android.launcher3.allapps.AllAppsContainerView>
</com.android.launcher3.secondarydisplay.SecondaryDragLayer>

代码扩展

上面的更改已经实现了需求，我们接着看 secondary_launcher.xml 对应的Java 文件

java 复制代码 
AllAppsContainerView.java    onFinishInflate() 方法


 @Override
    protected void onFinishInflate() {
        super.onFinishInflate();
		Log.d(TAG,"onFinishInflate");

        // This is a focus listener that proxies focus from a view into the list view.  This is to
        // work around the search box from getting first focus and showing the cursor.
        setOnFocusChangeListener((v, hasFocus) -> {
            if (hasFocus && getActiveRecyclerView() != null) {
                getActiveRecyclerView().requestFocus();
            }
        });

        mHeader = findViewById(R.id.all_apps_header);
        rebindAdapters(mUsingTabs, true /* force */);

        mSearchContainer = findViewById(R.id.search_container_all_apps);   //搜索框，找的就是这个搜索框
        mSearchUiManager = (SearchUiManager) mSearchContainer;
        mSearchUiManager.initializeSearch(this);
	
	    //下面代码自己添加的
		mSearchContainer.setVisibility(View.GONE);
		Log.d(TAG," findViewById search_container_all_apps     GONE");
    }

实际验证在不修改布局情况下，这里设置GONE 没有用

java 复制代码 
跟踪：mSearchContainer， 对外提供的方法

  public View getSearchView() {
        return mSearchContainer;
    }



搜索 getSearchView() 方法

fise4@ubuntu-PowerEdge-R730:~/Android/mt6769-alps-release-s0.mp1.rc/alps-release-s0.mp1.rc/packages/apps/Launcher3$ grep -rn getSearchView
src/com/android/launcher3/allapps/AllAppsContainerView.java:586:    public View getSearchView() {
src/com/android/launcher3/allapps/AllAppsContainerView.java:806:                (int) (getSearchView().getAlpha() * 255));
src/com/android/launcher3/allapps/AllAppsContainerView.java:809:            getSearchView().setBackgroundColor(viewBG);
src/com/android/launcher3/allapps/AllAppsContainerView.java:816:		getSearchView().setVisibility(View.GONE);
 	

这些都是 AllAppsContainerView.java  里面获取View； 回头看 secondary_launcher.xml 对应的类是SecondaryDisplayLauncher.java 


找到 SecondaryDisplayLauncher.java showAppDrawer 方法,在这个方法里去通过getSearchView 获取到搜索框，然后对搜索框设置GONE 不显示也可以的。

/**
     * Show/hide app drawer card with animation.
     */
    public void showAppDrawer(boolean show) {
		Log.d(TAG," showAppDrawer   show");
        if (show == mAppDrawerShown) {
            return;
        }

        float openR = (float) Math.hypot(mAppsView.getWidth(), mAppsView.getHeight());
        float closeR = Themes.getDialogCornerRadius(this);
        float startR = mAppsButton.getWidth() / 2f;

        float[] buttonPos = new float[] { startR, startR};
        mDragLayer.getDescendantCoordRelativeToSelf(mAppsButton, buttonPos);
        mDragLayer.mapCoordInSelfToDescendant(mAppsView, buttonPos);
        final Animator animator = ViewAnimationUtils.createCircularReveal(mAppsView,
                (int) buttonPos[0], (int) buttonPos[1],
                show ? closeR : openR, show ? openR : closeR);

        if (show) {
            mAppDrawerShown = true;
            mAppsView.setVisibility(View.VISIBLE);
            mAppsButton.setVisibility(View.INVISIBLE);
        } else {
            mAppDrawerShown = false;
            animator.addListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    mAppsView.setVisibility(View.INVISIBLE);
                    mAppsButton.setVisibility(View.VISIBLE);
                    mAppsView.getSearchUiManager().resetSearch();
                }
            });
        }
		Log.d(TAG," showAppDrawer  set searchView Gone");
		
		//设置为 GONE 
		mAppsView.getSearchView().setVisibility(View.GONE);
        animator.start();
    }

showAppDrawer 方法，只是在特定的情况下执行，所以在这个方法里面执行设置GONE逻辑并不是完全之策，最简单直接就是更改布局GONE 状态了。

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