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AndroidAOSP定制隐藏某个应用的图标

AndroidAOSP定制隐藏某个应用的图标

1.前言:

之前在做AOSP定制的时候需要隐藏某些App的图标,或者默认不显示某个定制的App图标,这样可以让用户感觉不到已经安装了某个App,或者在做系统定制的时候需要修改桌面icon,有些系统的App图标默认不需要显示,因为原生的系统App很多,有些用户又不需要全部在桌面显示,这时候就需要隐藏某些App的图标了,直接上代码。

2.源码路径如下:

/packages/apps/Launcher3/src/com/android/launcher3/model/LoaderTask

private List<LauncherActivityInfo> loadAllApps() {
    final List<UserHandle> profiles = mUserCache.getUserProfiles();
    List<LauncherActivityInfo> allActivityList = new ArrayList<>();
    // Clear the list of apps
    mBgAllAppsList.clear();
    for (UserHandle user : profiles) {
        // Query for the set of apps
        final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
        // Fail if we don't have any apps
        // TODO: Fix this. Only fail for the current user.
        if (apps == null || apps.isEmpty()) {
            return allActivityList;
        }
        boolean quietMode = mUserManagerState.isUserQuiet(user);
        // Create the ApplicationInfos
        for (int i = 0; i < apps.size(); i++) {
            LauncherActivityInfo app = apps.get(i);
            // This builds the icon bitmaps.
            mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);
        }
        allActivityList.addAll(apps);
    }

    if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
        // get all active sessions and add them to the all apps list
        for (PackageInstaller.SessionInfo info :
                mSessionHelper.getAllVerifiedSessions()) {
            mBgAllAppsList.addPromiseApp(mApp.getContext(),
                    PackageInstallInfo.fromInstallingState(info));
        }
    }
    for (AppInfo item : mBgDataModel.cachedPredictedItems) {
        List<LauncherActivityInfo> l = mLauncherApps.getActivityList(
                item.componentName.getPackageName(), item.user);
        for (LauncherActivityInfo info : l) {
            boolean quietMode = mUserManagerState.isUserQuiet(item.user);
            mBgAllAppsList.add(new AppInfo(info, item.user, quietMode), info);
        }
    }

    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_ENABLED,
            mUserManagerState.isAnyProfileQuietModeEnabled());
    mBgAllAppsList.setFlags(FLAG_HAS_SHORTCUT_PERMISSION,
            hasShortcutsPermission(mApp.getContext()));
    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_CHANGE_PERMISSION,
            mApp.getContext().checkSelfPermission("android.permission.MODIFY_QUIET_MODE")
                    == PackageManager.PERMISSION_GRANTED);

    mBgAllAppsList.getAndResetChangeFlag();
    return allActivityList;
}

3.修改的核心方法如下:

在这里插入图片描述

private List<LauncherActivityInfo> loadAllApps() {
    final List<UserHandle> profiles = mUserCache.getUserProfiles();
    List<LauncherActivityInfo> allActivityList = new ArrayList<>();
    // Clear the list of apps
    mBgAllAppsList.clear();
    for (UserHandle user : profiles) {
        // Query for the set of apps
        final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
        // Fail if we don't have any apps
        // TODO: Fix this. Only fail for the current user.
        if (apps == null || apps.isEmpty()) {
            return allActivityList;
        }
        boolean quietMode = mUserManagerState.isUserQuiet(user);
        // Create the ApplicationInfos
        for (int i = 0; i < apps.size(); i++) {
            LauncherActivityInfo app = apps.get(i);
            // This builds the icon bitmaps.
            String pkg = app.getComponentName().getPackageName();
            if (pkg.equals("com.android.calendar")
                    || pkg.equals("com.android.deskclock")
                    || pkg.equals("com.android.dialer")
                    || pkg.equals("com.android.quicksearchbox")
                    || pkg.equals("com.android.contacts")
                    || pkg.equals("com.android.camera2")
                    || pkg.equals("com.android.email")
                    || pkg.equals("com.android.calculator2")
                    || pkg.equals("org.chromium.webview_shell")
                    || pkg.equals("com.android.gallery3d")
                    || pkg.equals("com.android.music")
                    || pkg.equals("com.android.browser")
                    || pkg.equals("com.google.android.browser")) {
                continue;
            }
            mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);
        }
        allActivityList.addAll(apps);
    }

4.隐藏系统通讯录图标:

private List<LauncherActivityInfo> loadAllApps() {
    final List<UserHandle> profiles = mUserCache.getUserProfiles();
    List<LauncherActivityInfo> allActivityList = new ArrayList<>();
    // Clear the list of apps
    mBgAllAppsList.clear();
    for (UserHandle user : profiles) {
        // Query for the set of apps
        final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
        // Fail if we don't have any apps
        // TODO: Fix this. Only fail for the current user.
        if (apps == null || apps.isEmpty()) {
            return allActivityList;
        }
        boolean quietMode = mUserManagerState.isUserQuiet(user);
        // Create the ApplicationInfos
        for (int i = 0; i < apps.size(); i++) {
            LauncherActivityInfo app = apps.get(i);
            // This builds the icon bitmaps.
            String pkg = app.getComponentName().getPackageName();
            if (pkg.equals("com.android.contacts")) {
                continue;
            }
            mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);
        }
        allActivityList.addAll(apps);
    }

    if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
        // get all active sessions and add them to the all apps list
        for (PackageInstaller.SessionInfo info :
                mSessionHelper.getAllVerifiedSessions()) {
            mBgAllAppsList.addPromiseApp(mApp.getContext(),
                    PackageInstallInfo.fromInstallingState(info));
        }
    }
    for (AppInfo item : mBgDataModel.cachedPredictedItems) {
        List<LauncherActivityInfo> l = mLauncherApps.getActivityList(
                item.componentName.getPackageName(), item.user);
        for (LauncherActivityInfo info : l) {
            boolean quietMode = mUserManagerState.isUserQuiet(item.user);
            mBgAllAppsList.add(new AppInfo(info, item.user, quietMode), info);
        }
    }

    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_ENABLED,
            mUserManagerState.isAnyProfileQuietModeEnabled());
    mBgAllAppsList.setFlags(FLAG_HAS_SHORTCUT_PERMISSION,
            hasShortcutsPermission(mApp.getContext()));
    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_CHANGE_PERMISSION,
            mApp.getContext().checkSelfPermission("android.permission.MODIFY_QUIET_MODE")
                    == PackageManager.PERMISSION_GRANTED);

    mBgAllAppsList.getAndResetChangeFlag();
    return allActivityList;
}

5.隐藏系统相册图标:

private List<LauncherActivityInfo> loadAllApps() {
    final List<UserHandle> profiles = mUserCache.getUserProfiles();
    List<LauncherActivityInfo> allActivityList = new ArrayList<>();
    // Clear the list of apps
    mBgAllAppsList.clear();
    for (UserHandle user : profiles) {
        // Query for the set of apps
        final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
        // Fail if we don't have any apps
        // TODO: Fix this. Only fail for the current user.
        if (apps == null || apps.isEmpty()) {
            return allActivityList;
        }
        boolean quietMode = mUserManagerState.isUserQuiet(user);
        // Create the ApplicationInfos
        for (int i = 0; i < apps.size(); i++) {
            LauncherActivityInfo app = apps.get(i);
            // This builds the icon bitmaps.
            String pkg = app.getComponentName().getPackageName();
            if (pkg.equals("com.android.gallery3d")
              || pkg.equals("com.android.camera2")) {
                continue;
            }
            mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);
        }
        allActivityList.addAll(apps);
    }

    if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
        // get all active sessions and add them to the all apps list
        for (PackageInstaller.SessionInfo info :
                mSessionHelper.getAllVerifiedSessions()) {
            mBgAllAppsList.addPromiseApp(mApp.getContext(),
                    PackageInstallInfo.fromInstallingState(info));
        }
    }
    for (AppInfo item : mBgDataModel.cachedPredictedItems) {
        List<LauncherActivityInfo> l = mLauncherApps.getActivityList(
                item.componentName.getPackageName(), item.user);
        for (LauncherActivityInfo info : l) {
            boolean quietMode = mUserManagerState.isUserQuiet(item.user);
            mBgAllAppsList.add(new AppInfo(info, item.user, quietMode), info);
        }
    }

    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_ENABLED,
            mUserManagerState.isAnyProfileQuietModeEnabled());
    mBgAllAppsList.setFlags(FLAG_HAS_SHORTCUT_PERMISSION,
            hasShortcutsPermission(mApp.getContext()));
    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_CHANGE_PERMISSION,
            mApp.getContext().checkSelfPermission("android.permission.MODIFY_QUIET_MODE")
                    == PackageManager.PERMISSION_GRANTED);

    mBgAllAppsList.getAndResetChangeFlag();
    return allActivityList;
}

6.隐藏系统webview图标:

这里有个坑需要注意!!!

这里有个坑需要注意!!!

这里有个坑需要注意!!!

重要的事说三遍,webview在系统应用中可能会有多个包名,如果只是单纯添加某一个会不生效,本人是做过多次测试和修改,最后是经过查找资料和询问大佬实践多次才解决此问题,当时一度以为代码出现问题快emo了,最后才发现是系统webview可能安装了多个应用,导致存在多个包名,使用下面的方式进行过滤,感兴趣的朋友自己尝试.

private List<LauncherActivityInfo> loadAllApps() {
    final List<UserHandle> profiles = mUserCache.getUserProfiles();
    List<LauncherActivityInfo> allActivityList = new ArrayList<>();
    // Clear the list of apps
    mBgAllAppsList.clear();
    for (UserHandle user : profiles) {
        // Query for the set of apps
        final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null, user);
        // Fail if we don't have any apps
        // TODO: Fix this. Only fail for the current user.
        if (apps == null || apps.isEmpty()) {
            return allActivityList;
        }
        boolean quietMode = mUserManagerState.isUserQuiet(user);
        // Create the ApplicationInfos
        for (int i = 0; i < apps.size(); i++) {
            LauncherActivityInfo app = apps.get(i);
            // This builds the icon bitmaps.
            String pkg = app.getComponentName().getPackageName();
            if (pkg.equals("com.android.browser")
                 || pkg.equals("com.android.webview")
                 || pkg.equals("org.chromium.webview_shell")
                 || pkg.equals("com.google.android.browser")) {
                continue;
            }
            mBgAllAppsList.add(new AppInfo(app, user, quietMode), app);
        }
        allActivityList.addAll(apps);
    }

    if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
        // get all active sessions and add them to the all apps list
        for (PackageInstaller.SessionInfo info :
                mSessionHelper.getAllVerifiedSessions()) {
            mBgAllAppsList.addPromiseApp(mApp.getContext(),
                    PackageInstallInfo.fromInstallingState(info));
        }
    }
    for (AppInfo item : mBgDataModel.cachedPredictedItems) {
        List<LauncherActivityInfo> l = mLauncherApps.getActivityList(
                item.componentName.getPackageName(), item.user);
        for (LauncherActivityInfo info : l) {
            boolean quietMode = mUserManagerState.isUserQuiet(item.user);
            mBgAllAppsList.add(new AppInfo(info, item.user, quietMode), info);
        }
    }

    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_ENABLED,
            mUserManagerState.isAnyProfileQuietModeEnabled());
    mBgAllAppsList.setFlags(FLAG_HAS_SHORTCUT_PERMISSION,
            hasShortcutsPermission(mApp.getContext()));
    mBgAllAppsList.setFlags(FLAG_QUIET_MODE_CHANGE_PERMISSION,
            mApp.getContext().checkSelfPermission("android.permission.MODIFY_QUIET_MODE")
                    == PackageManager.PERMISSION_GRANTED);

    mBgAllAppsList.getAndResetChangeFlag();
    return allActivityList;
}

7.封装工具类:

在源码路径添加:/packages/apps/Launcher3/src/com/android/launcher3/util/HideAppIconUtils

HideAppIconUtils工具类

package com.android.launcher3.util;

import java.util.LinkedList;
import java.util.List;
/**
 * @author: smile
 * @date:   2025/2/24 23:45
 * @desc:   隐藏指定App的图标
 */
public class HideAppIconUtils {

        private static final List<String> mPackageMap = new LinkedList<>();

        private HideAppIconUtils() {
            addHideAppList();
        }

        //需要隐藏的系统App包名,添加到这里
        private void addHideAppList() {
            mPackageMap.add("com.android.calendar");
            mPackageMap.add("com.android.deskclock");
            mPackageMap.add("com.android.quicksearchbox");
            mPackageMap.add("com.android.contacts");
            mPackageMap.add("com.android.camera2");
            mPackageMap.add("com.android.email");
            mPackageMap.add("com.android.calculator2");
            mPackageMap.add("com.android.gallery3d");
            mPackageMap.add("com.android.music");
            mPackageMap.add("org.chromium.webview_shell");
            mPackageMap.add("com.android.browser");
            mPackageMap.add("com.google.android.browser");
        }

        private static class HideAppIconUtilsHolder {
            private static final HideAppIconUtils INSTALL = new HideAppIconUtils();
        }

        public static HideAppIconUtils getInstall() {
            return HideAppIconUtilsHolder.INSTALL;
        }

        public boolean isHidedApkPackageName(String apkPkg) {
            return mPackageMap.contains(apkPkg);
        }
    }
}

8.更新时修改Launche3:

源码路径:/packages/apps/Launcher3/src/com/android/launcher3/model/PackageUpdatedTask

PackageUpdatedTask类代码如下:此类看源码注释就是说明在App包名发生改变或者桌面App发生变化时有一个线程Handler会更新或者删除相应的内容.

/*
 * Copyright (C) 2016 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.
 */
package com.android.launcher3.model;

import static com.android.launcher3.model.BgDataModel.Callbacks.FLAG_QUIET_MODE_ENABLED;
import static com.android.launcher3.model.data.WorkspaceItemInfo.FLAG_AUTOINSTALL_ICON;
import static com.android.launcher3.model.data.WorkspaceItemInfo.FLAG_RESTORED_ICON;

import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.pm.LauncherApps;
import android.content.pm.ShortcutInfo;
import android.os.Process;
import android.os.UserHandle;
import android.os.UserManager;
import android.util.Log;
import android.util.Pair;

import com.android.launcher3.InstallShortcutReceiver;
import com.android.launcher3.LauncherAppState;
import com.android.launcher3.LauncherSettings.Favorites;
import com.android.launcher3.SessionCommitReceiver;
import com.android.launcher3.Utilities;
import com.android.launcher3.config.FeatureFlags;
import com.android.launcher3.icons.BitmapInfo;
import com.android.launcher3.icons.IconCache;
import com.android.launcher3.icons.LauncherIcons;
import com.android.launcher3.logging.FileLog;
import com.android.launcher3.model.data.ItemInfo;
import com.android.launcher3.model.data.LauncherAppWidgetInfo;
import com.android.launcher3.model.data.WorkspaceItemInfo;
import com.android.launcher3.pm.UserCache;
import com.android.launcher3.shortcuts.ShortcutRequest;
import com.android.launcher3.util.FlagOp;
import com.android.launcher3.util.IntSparseArrayMap;
import com.android.launcher3.util.ItemInfoMatcher;
import com.android.launcher3.util.PackageManagerHelper;
import com.android.launcher3.util.PackageUserKey;
import com.android.launcher3.util.SafeCloseable;
import com.android.launcher3.model.data.AppInfo;

import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashSet;
import java.util.List;

/**
 * Handles updates due to changes in package manager (app installed/updated/removed)
 * or when a user availability changes.
 */
public class PackageUpdatedTask extends BaseModelUpdateTask {

    private static final boolean DEBUG = false;
    private static final String TAG = "PackageUpdatedTask";

    public static final int OP_NONE = 0;
    public static final int OP_ADD = 1;
    public static final int OP_UPDATE = 2;
    public static final int OP_REMOVE = 3; // uninstalled
    public static final int OP_UNAVAILABLE = 4; // external media unmounted
    public static final int OP_SUSPEND = 5; // package suspended
    public static final int OP_UNSUSPEND = 6; // package unsuspended
    public static final int OP_USER_AVAILABILITY_CHANGE = 7; // user available/unavailable

    private final int mOp;
    private final UserHandle mUser;
    private final String[] mPackages;

    public PackageUpdatedTask(int op, UserHandle user, String... packages) {
        mOp = op;
        mUser = user;
        mPackages = packages;
    }

    @Override
    public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList appsList) {
        final Context context = app.getContext();
        final IconCache iconCache = app.getIconCache();

        final String[] packages = mPackages;
        final int N = packages.length;
        FlagOp flagOp = FlagOp.NO_OP;
        final HashSet<String> packageSet = new HashSet<>(Arrays.asList(packages));
        ItemInfoMatcher matcher = ItemInfoMatcher.ofPackages(packageSet, mUser);
        final HashSet<ComponentName> removedComponents = new HashSet<>();

        switch (mOp) {
            case OP_ADD: {
                for (int i = 0; i < N; i++) {
                    if (DEBUG) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]);
                    String pkg = packages[i];
                    if ("com.android.calendar".equals(pkg)
                            || "com.android.deskclock".equals(pkg)
                            || "com.android.dialer".equals(pkg)
                            || "com.android.browser".equals(pkg)
                            || "com.android.contacts".equals(pkg)
                            || "com.android.camera2".equals(pkg)
                            || "com.android.email".equals(pkg)
                            || "com.android.calculator2".equals(pkg)
                            || "com.android.webview".equals(pkg)
                            || "com.android.gallery3d".equals(pkg)
                            || "com.android.music".equals(pkg)) {
                        continue;
                    }
                    iconCache.updateIconsForPkg(packages[i], mUser);
                    if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
                        appsList.removePackage(packages[i], mUser);
                    }
                    appsList.addPackage(context, packages[i], mUser);

                    // Automatically add homescreen icon for work profile apps for below O device.
                    if (!Utilities.ATLEAST_OREO && !Process.myUserHandle().equals(mUser)) {
                        SessionCommitReceiver.queueAppIconAddition(context, packages[i], mUser);
                    }
                }
                flagOp = FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
                break;
            }
            case OP_UPDATE:
                try (SafeCloseable t =
                             appsList.trackRemoves(a -> removedComponents.add(a.componentName))) {
                    for (int i = 0; i < N; i++) {
                        if (DEBUG) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]);
                        String pkg = packages[i];
                        if ("com.android.calendar".equals(pkg)
                                || "com.android.deskclock".equals(pkg)
                                || "com.android.dialer".equals(pkg)
                                || "com.android.browser".equals(pkg)
                                || "com.android.contacts".equals(pkg)
                                || "com.android.camera2".equals(pkg)
                                || "com.android.email".equals(pkg)
                                || "com.android.calculator2".equals(pkg)
                                || "com.android.webview".equals(pkg)
                                || "com.android.gallery3d".equals(pkg)
                                || "com.android.music".equals(pkg)) {
                            continue;
                        }
                        iconCache.updateIconsForPkg(packages[i], mUser);
                        appsList.updatePackage(context, packages[i], mUser);
                        app.getWidgetCache().removePackage(packages[i], mUser);
                    }
                }
                // Since package was just updated, the target must be available now.
                flagOp = FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
                break;
            case OP_REMOVE: {
                for (int i = 0; i < N; i++) {
                    FileLog.d(TAG, "Removing app icon" + packages[i]);
                    iconCache.removeIconsForPkg(packages[i], mUser);
                }
                // Fall through
            }
            case OP_UNAVAILABLE:
                for (int i = 0; i < N; i++) {
                    if (DEBUG) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]);
                    appsList.removePackage(packages[i], mUser);
                    app.getWidgetCache().removePackage(packages[i], mUser);
                }
                flagOp = FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
                break;
            case OP_SUSPEND:
            case OP_UNSUSPEND:
                flagOp = mOp == OP_SUSPEND ?
                        FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_SUSPENDED) :
                        FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_SUSPENDED);
                if (DEBUG) Log.d(TAG, "mAllAppsList.(un)suspend " + N);
                appsList.updateDisabledFlags(matcher, flagOp);
                break;
            case OP_USER_AVAILABILITY_CHANGE: {
                UserManagerState ums = new UserManagerState();
                ums.init(UserCache.INSTANCE.get(context),
                        context.getSystemService(UserManager.class));
                flagOp = ums.isUserQuiet(mUser)
                        ? FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_QUIET_USER)
                        : FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_QUIET_USER);
                // We want to update all packages for this user.
                matcher = ItemInfoMatcher.ofUser(mUser);
                appsList.updateDisabledFlags(matcher, flagOp);

                // We are not synchronizing here, as int operations are atomic
                appsList.setFlags(FLAG_QUIET_MODE_ENABLED, ums.isAnyProfileQuietModeEnabled());
                break;
            }
        }

        bindApplicationsIfNeeded();

        final IntSparseArrayMap<Boolean> removedShortcuts = new IntSparseArrayMap<>();

        // Update shortcut infos
        if (mOp == OP_ADD || flagOp != FlagOp.NO_OP) {
            final ArrayList<WorkspaceItemInfo> updatedWorkspaceItems = new ArrayList<>();
            final ArrayList<LauncherAppWidgetInfo> widgets = new ArrayList<>();

            // For system apps, package manager send OP_UPDATE when an app is enabled.
            final boolean isNewApkAvailable = mOp == OP_ADD || mOp == OP_UPDATE;
            synchronized (dataModel) {
                for (ItemInfo info : dataModel.itemsIdMap) {
                    if (info instanceof WorkspaceItemInfo && mUser.equals(info.user)) {
                        WorkspaceItemInfo si = (WorkspaceItemInfo) info;
                        boolean infoUpdated = false;
                        boolean shortcutUpdated = false;

                        // Update shortcuts which use iconResource.
                        if ((si.iconResource != null)
                                && packageSet.contains(si.iconResource.packageName)) {
                            LauncherIcons li = LauncherIcons.obtain(context);
                            BitmapInfo iconInfo = li.createIconBitmap(si.iconResource);
                            li.recycle();
                            if (iconInfo != null) {
                                si.bitmap = iconInfo;
                                infoUpdated = true;
                            }
                        }

                        ComponentName cn = si.getTargetComponent();
                        if (cn != null && matcher.matches(si, cn)) {
                            String packageName = cn.getPackageName();

                            if (si.hasStatusFlag(WorkspaceItemInfo.FLAG_SUPPORTS_WEB_UI)) {
                                removedShortcuts.put(si.id, false);
                                if (mOp == OP_REMOVE) {
                                    continue;
                                }
                            }

                            if (si.isPromise() && isNewApkAvailable) {
                                boolean isTargetValid = true;
                                if (si.itemType == Favorites.ITEM_TYPE_DEEP_SHORTCUT) {
                                    List<ShortcutInfo> shortcut =
                                            new ShortcutRequest(context, mUser)
                                                    .forPackage(cn.getPackageName(),
                                                            si.getDeepShortcutId())
                                                    .query(ShortcutRequest.PINNED);
                                    if (shortcut.isEmpty()) {
                                        isTargetValid = false;
                                    } else {
                                        si.updateFromDeepShortcutInfo(shortcut.get(0), context);
                                        infoUpdated = true;
                                    }
                                } else if (!cn.getClassName().equals(IconCache.EMPTY_CLASS_NAME)) {
                                    isTargetValid = context.getSystemService(LauncherApps.class)
                                            .isActivityEnabled(cn, mUser);
                                }
                                if (si.hasStatusFlag(FLAG_RESTORED_ICON | FLAG_AUTOINSTALL_ICON)) {
                                    if (updateWorkspaceItemIntent(context, si, packageName)) {
                                        infoUpdated = true;
                                    } else if (si.hasPromiseIconUi()) {
                                        removedShortcuts.put(si.id, true);
                                        continue;
                                    }
                                } else if (!isTargetValid) {
                                    removedShortcuts.put(si.id, true);
                                    FileLog.e(TAG, "Restored shortcut no longer valid "
                                            + si.getIntent());
                                    continue;
                                } else {
                                    si.status = WorkspaceItemInfo.DEFAULT;
                                    infoUpdated = true;
                                }
                            } else if (isNewApkAvailable && removedComponents.contains(cn)) {
                                if (updateWorkspaceItemIntent(context, si, packageName)) {
                                    infoUpdated = true;
                                }
                            }

                            if (isNewApkAvailable &&
                                    si.itemType == Favorites.ITEM_TYPE_APPLICATION) {
                                iconCache.getTitleAndIcon(si, si.usingLowResIcon());
                                infoUpdated = true;
                            }

                            int oldRuntimeFlags = si.runtimeStatusFlags;
                            si.runtimeStatusFlags = flagOp.apply(si.runtimeStatusFlags);
                            if (si.runtimeStatusFlags != oldRuntimeFlags) {
                                shortcutUpdated = true;
                            }
                        }

                        if (infoUpdated || shortcutUpdated) {
                            updatedWorkspaceItems.add(si);
                        }
                        if (infoUpdated) {
                            getModelWriter().updateItemInDatabase(si);
                        }
                    } else if (info instanceof LauncherAppWidgetInfo && isNewApkAvailable) {
                        LauncherAppWidgetInfo widgetInfo = (LauncherAppWidgetInfo) info;
                        if (mUser.equals(widgetInfo.user)
                                && widgetInfo.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY)
                                && packageSet.contains(widgetInfo.providerName.getPackageName())) {
                            widgetInfo.restoreStatus &=
                                    ~LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY &
                                            ~LauncherAppWidgetInfo.FLAG_RESTORE_STARTED;

                            // adding this flag ensures that launcher shows 'click to setup'
                            // if the widget has a config activity. In case there is no config
                            // activity, it will be marked as 'restored' during bind.
                            widgetInfo.restoreStatus |= LauncherAppWidgetInfo.FLAG_UI_NOT_READY;

                            widgets.add(widgetInfo);
                            getModelWriter().updateItemInDatabase(widgetInfo);
                        }
                    }
                }
            }

            bindUpdatedWorkspaceItems(updatedWorkspaceItems);
            if (!removedShortcuts.isEmpty()) {
                deleteAndBindComponentsRemoved(ItemInfoMatcher.ofItemIds(removedShortcuts, false));
            }

            if (!widgets.isEmpty()) {
                scheduleCallbackTask(c -> c.bindWidgetsRestored(widgets));
            }
        }

        final HashSet<String> removedPackages = new HashSet<>();
        if (mOp == OP_REMOVE) {
            // Mark all packages in the broadcast to be removed
            Collections.addAll(removedPackages, packages);

            // No need to update the removedComponents as
            // removedPackages is a super-set of removedComponents
        } else if (mOp == OP_UPDATE) {
            // Mark disabled packages in the broadcast to be removed
            final LauncherApps launcherApps = context.getSystemService(LauncherApps.class);
            for (int i=0; i<N; i++) {
                if (!launcherApps.isPackageEnabled(packages[i], mUser)) {
                    removedPackages.add(packages[i]);
                }
            }
        }

        if (!removedPackages.isEmpty() || !removedComponents.isEmpty()) {
            ItemInfoMatcher removeMatch = ItemInfoMatcher.ofPackages(removedPackages, mUser)
                    .or(ItemInfoMatcher.ofComponents(removedComponents, mUser))
                    .and(ItemInfoMatcher.ofItemIds(removedShortcuts, true));
            deleteAndBindComponentsRemoved(removeMatch);

            // Remove any queued items from the install queue
            InstallShortcutReceiver.removeFromInstallQueue(context, removedPackages, mUser);
        }

        if (Utilities.ATLEAST_OREO && mOp == OP_ADD) {
            // Load widgets for the new package. Changes due to app updates are handled through
            // AppWidgetHost events, this is just to initialize the long-press options.
            for (int i = 0; i < N; i++) {
                dataModel.widgetsModel.update(app, new PackageUserKey(packages[i], mUser));
            }
            bindUpdatedWidgets(dataModel);
        }
        // add start
        if (FeatureFlags.REMOVE_DRAWER) {
            bindAllAppsToWorkspace(app, appsList);
        }
        // add end
    }

    /**
     * Updates {@param si}'s intent to point to a new ComponentName.
     * @return Whether the shortcut intent was changed.
     */
    private boolean updateWorkspaceItemIntent(Context context,
            WorkspaceItemInfo si, String packageName) {
        // Try to find the best match activity.
        Intent intent = new PackageManagerHelper(context).getAppLaunchIntent(packageName, mUser);
        if (intent != null) {
            si.intent = intent;
            si.status = WorkspaceItemInfo.DEFAULT;
            return true;
        }
        return false;
    }

    // add start
    private void bindAllAppsToWorkspace(LauncherAppState app, AllAppsList mBgAllAppsList){
        if (mBgAllAppsList.data.size() > 0) {
            //  AppInfoComparator mAppNameComparator = new AppInfoComparator(mApp.getContext());
            ArrayList<AppInfo> appInfos = new ArrayList<AppInfo>(mBgAllAppsList.data);
            //  Collections.sort(appInfos, mAppNameComparator);
            ArrayList<Pair<ItemInfo, Object>> installQueue = new ArrayList<>();
            for (AppInfo info : appInfos) {
                installQueue.add(Pair.create((ItemInfo) info, null));
            }
            app.getModel().addAndBindAddedWorkspaceItems(installQueue);
        }
    }
    // add end
}

9.更新时关键修改如下:

@Override
public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList appsList) {
    final Context context = app.getContext();
    final IconCache iconCache = app.getIconCache();

    final String[] packages = mPackages;
    final int N = packages.length;
    FlagOp flagOp = FlagOp.NO_OP;
    final HashSet<String> packageSet = new HashSet<>(Arrays.asList(packages));
    ItemInfoMatcher matcher = ItemInfoMatcher.ofPackages(packageSet, mUser);
    final HashSet<ComponentName> removedComponents = new HashSet<>();

    switch (mOp) {
        case OP_ADD: {
            for (int i = 0; i < N; i++) {
                if (DEBUG) Log.d(TAG, "mAllAppsList.addPackage " + packages[i]);
                String pkg = packages[i];
                if ("com.android.calendar".equals(pkg)
                        || "com.android.deskclock".equals(pkg)
                        || "com.android.dialer".equals(pkg)
                        || "com.android.browser".equals(pkg)
                        || "com.android.contacts".equals(pkg)
                        || "com.android.camera2".equals(pkg)
                        || "com.android.email".equals(pkg)
                        || "com.android.calculator2".equals(pkg)
                        || "com.android.webview".equals(pkg)
                        || "com.android.gallery3d".equals(pkg)
                        || "com.android.music".equals(pkg)) {
                    continue;
                }
                iconCache.updateIconsForPkg(packages[i], mUser);
                if (FeatureFlags.PROMISE_APPS_IN_ALL_APPS.get()) {
                    appsList.removePackage(packages[i], mUser);
                }
                appsList.addPackage(context, packages[i], mUser);

                // Automatically add homescreen icon for work profile apps for below O device.
                if (!Utilities.ATLEAST_OREO && !Process.myUserHandle().equals(mUser)) {
                    SessionCommitReceiver.queueAppIconAddition(context, packages[i], mUser);
                }
            }
            flagOp = FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
            break;
        }
        case OP_UPDATE:
            try (SafeCloseable t =
                         appsList.trackRemoves(a -> removedComponents.add(a.componentName))) {
                for (int i = 0; i < N; i++) {
                    if (DEBUG) Log.d(TAG, "mAllAppsList.updatePackage " + packages[i]);
                    String pkg = packages[i];
                    if ("com.android.calendar".equals(pkg)
                            || "com.android.deskclock".equals(pkg)
                            || "com.android.dialer".equals(pkg)
                            || "com.android.browser".equals(pkg)
                            || "com.android.contacts".equals(pkg)
                            || "com.android.camera2".equals(pkg)
                            || "com.android.email".equals(pkg)
                            || "com.android.calculator2".equals(pkg)
                            || "com.android.webview".equals(pkg)
                            || "com.android.gallery3d".equals(pkg)
                            || "com.android.music".equals(pkg)) {
                        continue;
                    }
                    iconCache.updateIconsForPkg(packages[i], mUser);
                    appsList.updatePackage(context, packages[i], mUser);
                    app.getWidgetCache().removePackage(packages[i], mUser);
                }
            }
            // Since package was just updated, the target must be available now.
            flagOp = FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
            break;
        case OP_REMOVE: {
            for (int i = 0; i < N; i++) {
                FileLog.d(TAG, "Removing app icon" + packages[i]);
                iconCache.removeIconsForPkg(packages[i], mUser);
            }
            // Fall through
        }
        case OP_UNAVAILABLE:
            for (int i = 0; i < N; i++) {
                if (DEBUG) Log.d(TAG, "mAllAppsList.removePackage " + packages[i]);
                appsList.removePackage(packages[i], mUser);
                app.getWidgetCache().removePackage(packages[i], mUser);
            }
            flagOp = FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_NOT_AVAILABLE);
            break;
        case OP_SUSPEND:
        case OP_UNSUSPEND:
            flagOp = mOp == OP_SUSPEND ?
                    FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_SUSPENDED) :
                    FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_SUSPENDED);
            if (DEBUG) Log.d(TAG, "mAllAppsList.(un)suspend " + N);
            appsList.updateDisabledFlags(matcher, flagOp);
            break;
        case OP_USER_AVAILABILITY_CHANGE: {
            UserManagerState ums = new UserManagerState();
            ums.init(UserCache.INSTANCE.get(context),
                    context.getSystemService(UserManager.class));
            flagOp = ums.isUserQuiet(mUser)
                    ? FlagOp.addFlag(WorkspaceItemInfo.FLAG_DISABLED_QUIET_USER)
                    : FlagOp.removeFlag(WorkspaceItemInfo.FLAG_DISABLED_QUIET_USER);
            // We want to update all packages for this user.
            matcher = ItemInfoMatcher.ofUser(mUser);
            appsList.updateDisabledFlags(matcher, flagOp);

            // We are not synchronizing here, as int operations are atomic
            appsList.setFlags(FLAG_QUIET_MODE_ENABLED, ums.isAnyProfileQuietModeEnabled());
            break;
        }
    }

10.没修改的效果如下:

在这里插入图片描述

11.修改后的效果如下:

可以看到修改之后桌面很干净,没有哪些乱七八糟的应用图标,之前是一堆系统应用图标,给人焕然一新的感觉,而且还修改了排列的图标位置和列数等等,这些后面再讲解.
在这里插入图片描述

12.总结:

这里大家可以根据自己的需求进行隐藏,我这里只是举例子,因为我有些系统应用图标实际不需要隐藏,所以最后可以看到只有相册和电子邮件,Google商店和Google Chrome浏览器是我自己定制的apk,所以默认就显示在首屏,当然这些也可以去掉隐藏,像第一屏有些是在默认的Launcher3布局里面设置。Android9和11基本上在隐藏图标配置和修改是一样的,大家可以自己尝试,当然后面讲解Launcher3修改默认的抽屉和首屏布局列表,这时候Android9和11有很多不一样的 地方,大家可以自行尝试,今天的内容就到这里打卡睡觉.

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