Android13 Launcher3 定制

去掉Google搜索栏

aosp/packages/apps/Launcher3/src_build_config/com/android/launcher3/BuildConfig.java

修改QSB_ON_FIRST_SCREEN为false

    public static final boolean QSB_ON_FIRST_SCREEN = false;

去掉抽屉菜单，所有应用都放到桌面

增加控制变量

aosp/packages/apps/Launcher3/src_build_config/com/android/launcher3/BuildConfig.java

增加

  public static final boolean REMOVE_DRAWER = true;

aosp/packages/apps/Launcher3/src/com/android/launcher3/config/FeatureFlags.java

增加

public static final boolean REMOVE_DRAWER =  BuildConfig.REMOVE_DRAWER;

禁用上滑打开抽屉应用菜单

aosp/packages/apps/Launcher3/quickstep/src/com/android/launcher3/uioverrides/touchcontrollers/PortraitStatesTouchController.java

@Overrideprotected boolean canInterceptTouch(MotionEvent ev) {if(FeatureFlags.REMOVE_DRAWER){return false;}....}

加载所有应用

aosp/packages/apps/Launcher3/src/com/android/launcher3/model/LoaderTask.java

  public void run() {...Trace.beginSection("LoadAllApps");List<LauncherActivityInfo> allActivityList;try {allActivityList = loadAllApps();} finally {Trace.endSection();}logASplit(logger, "loadAllApps");// 增加if (FeatureFlags.REMOVE_DRAWER){getAllApplications();}verifyNotStopped();mResults.bindAllApps();logASplit(logger, "bindAllApps");...}private void getAllApplications() {Log.d(TAG,"getAllApplications");final Context context =mApp.getContext();ArrayList<Pair<ItemInfo,Object>> installQueue = new ArrayList<>();final List<UserHandle> profiles =mUserManager.getUserProfiles();for (UserHandle user : profiles) {final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null,user);ArrayList<ItemInstallQueue.PendingInstallShortcutInfo>added = new ArrayList<ItemInstallQueue.PendingInstallShortcutInfo>();synchronized (this) {for (LauncherActivityInfo app :apps) {
//                    if(app.getComponentName().getPackageName().equals("com.android.stk")||app.getComponentName().getPackageName().equals("com.android.fmradio")){
//                        continue;
//                    }Log.d(TAG,"getAllApplications packageName: " + app.getComponentName().getPackageName());ItemInstallQueue.PendingInstallShortcutInfo pendingInstallShortcutInfo= new ItemInstallQueue.PendingInstallShortcutInfo(app.getActivityInfo().packageName, user);added.add(pendingInstallShortcutInfo);installQueue.add(pendingInstallShortcutInfo.getItemInfo(context));}}if (!added.isEmpty()) {mApp.getModel().addAndBindAddedWorkspaceItems(installQueue);}}}

aosp/packages/apps/Launcher3/src/com/android/launcher3/model/ItemInstallQueue.java

// 修改private为publicpublic static class PendingInstallShortcutInfo extends ItemInfo {}

安装的app添加到workspace工作区

aosp/packages/apps/Launcher3/src/com/android/launcher3/model/PackageUpdatedTask.java

 @Overridepublic void execute(@NonNull final LauncherAppState app, @NonNull final BgDataModel dataModel,@NonNull final AllAppsList appsList) {...bindApplicationsIfNeeded();// 增加if(FeatureFlags.REMOVE_DRAWER){updateToWorkSpace(context, app,appsList);}final IntSet removedShortcuts = new IntSet();// Shortcuts to keep even if the corresponding app was removedfinal IntSet forceKeepShortcuts = new IntSet();...}//安装的app添加到workspace工作区public void updateToWorkSpace(Context context, LauncherAppState app, AllAppsList appsList){Log.d(TAG,"updateToWorkSpace");ArrayList<Pair<ItemInfo,Object>> installQueue = new ArrayList<>();UserManager mUserManager = app.getContext().getSystemService(UserManager.class);final List<UserHandle> profiles = mUserManager.getUserProfiles();ArrayList<ItemInstallQueue.PendingInstallShortcutInfo> added = new ArrayList<>();LauncherApps mLauncherApps = app.getContext().getSystemService(LauncherApps.class);for(UserHandle user : profiles){final List<LauncherActivityInfo> apps = mLauncherApps.getActivityList(null,user);synchronized (this){for(LauncherActivityInfo info :apps){for(AppInfo appInfo : appsList.data){String packageName = info.getComponentName().getPackageName();if(info.getComponentName().equals(appInfo.componentName)){if(DEBUG){Log.d(TAG,"updateToWorkSpace packageName: " + packageName);}ItemInstallQueue.PendingInstallShortcutInfo mPendingInstallShortcutInfo= new ItemInstallQueue.PendingInstallShortcutInfo(packageName,user);added.add(mPendingInstallShortcutInfo);installQueue.add(mPendingInstallShortcutInfo.getItemInfo(context));}}}}}if(!added.isEmpty()){app.getModel().addAndBindAddedWorkspaceItems(installQueue);}}

打开限制

清除数据重新加载还能加载图标
aosp/packages/apps/Launcher3/src/com/android/launcher3/model/AddWorkspaceItemsTask.java

public void execute(@NonNull final LauncherAppState app, @NonNull final BgDataModel dataModel,@NonNull final AllAppsList apps) {
...// b/139663018 Short-circuit this logic if the icon is a system appif (PackageManagerHelper.isSystemApp(app.getContext(),Objects.requireNonNull(item.getIntent()))) {if (TestProtocol.sDebugTracing) {Log.d(TestProtocol.MISSING_PROMISE_ICON,LOG + " Item is a system app.");}if(!FeatureFlags.REMOVE_DRAWER){continue;}}
...
}

这里不做修改的话如果清除所有数据，那么图标就不会加载
aosp/packages/apps/Launcher3/src/com/android/launcher3/model/BaseModelUpdateTask.java

  @Overridepublic final void run() {if (!Objects.requireNonNull(mModel).isModelLoaded()) {if (DEBUG_TASKS) {Log.d(TAG, "Ignoring model task since loader is pending=" + this);}// Loader has not yet run.if(!FeatureFlags.REMOVE_DRAWER) {return;}}execute(mApp, mDataModel, mAllAppsList);}

顶部菜单移除remove换成取消cancel，无法移除

remove变成cancel

aosp/packages/apps/Launcher3/src/com/android/launcher3/DeleteDropTarget.java

 private boolean canRemove(ItemInfo item) {// 增加if(FeatureFlags.REMOVE_DRAWER) {return false ;}return item.id != ItemInfo.NO_ID;}

无法删除图标

aosp/packages/apps/Launcher3/src/com/android/launcher3/dragndrop/DragController.java

protected void drop(DropTarget dropTarget, Runnable flingAnimation) {
...// Drop onto the target.boolean accepted = false;if (dropTarget != null) {dropTarget.onDragExit(mDragObject);if (dropTarget.acceptDrop(mDragObject)) {if (flingAnimation != null) {flingAnimation.run();} else {dropTarget.onDrop(mDragObject, mOptions);}accepted = true;    // 增加if (FeatureFlags.REMOVE_DRAWER && dropTarget instanceof DeleteDropTarget&& isNeedCancelDrag(mDragObject.dragInfo)) {cancelDrag();}}}final View dropTargetAsView = dropTarget instanceof View ? (View) dropTarget : null;dispatchDropComplete(dropTargetAsView, accepted);
}private boolean isNeedCancelDrag(ItemInfo item){return (item.itemType == LauncherSettings.Favorites.ITEM_TYPE_APPLICATION ||item.itemType == LauncherSettings.Favorites.ITEM_TYPE_FOLDER);
}

Android 13.0 桌面改成单层桌面的代码记录
launcher3去掉抽屉菜单，所有用都放到桌面，无法拖拽删除图标，去除hotseat
Android11去除抽屉模式