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 appsmBgAllAppsList.clear();for (UserHandle user : profiles) {// Query for the set of appsfinal 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 ApplicationInfosfor (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 listfor (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：

private List<LauncherActivityInfo> loadAllApps() {final List<UserHandle> profiles = mUserCache.getUserProfiles();List<LauncherActivityInfo> allActivityList = new ArrayList<>();// Clear the list of appsmBgAllAppsList.clear();for (UserHandle user : profiles) {// Query for the set of appsfinal 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 ApplicationInfosfor (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 appsmBgAllAppsList.clear();for (UserHandle user : profiles) {// Query for the set of appsfinal 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 ApplicationInfosfor (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 listfor (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 appsmBgAllAppsList.clear();for (UserHandle user : profiles) {// Query for the set of appsfinal 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 ApplicationInfosfor (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 listfor (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 appsmBgAllAppsList.clear();for (UserHandle user : profiles) {// Query for the set of appsfinal 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 ApplicationInfosfor (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 listfor (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; // uninstalledpublic static final int OP_UNAVAILABLE = 4; // external media unmountedpublic static final int OP_SUSPEND = 5; // package suspendedpublic static final int OP_UNSUSPEND = 6; // package unsuspendedpublic static final int OP_USER_AVAILABILITY_CHANGE = 7; // user available/unavailableprivate 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;}@Overridepublic 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 atomicappsList.setFlags(FLAG_QUIET_MODE_ENABLED, ums.isAnyProfileQuietModeEnabled());break;}}bindApplicationsIfNeeded();final IntSparseArrayMap<Boolean> removedShortcuts = new IntSparseArrayMap<>();// Update shortcut infosif (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 removedCollections.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 removedfinal 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 queueInstallShortcutReceiver.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 startif (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 startprivate 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 atomicappsList.setFlags(FLAG_QUIET_MODE_ENABLED, ums.isAnyProfileQuietModeEnabled());break;}}

10.没修改的效果如下：

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.

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.