Android 7.1 Launcher3 支持按键操作显示所有应用
16lz
2021-01-23
平台
Android 7.1 + RK3288问题
系统支持遥控操作, 但是, 在主界面时, 无法打开所有应用列表.在主界面, 不管上下左右如何操作, 都无法打开应用列表.
解决方案
与旧版相似, 显示所有应用图标
diff --git a/packages/apps/Launcher3/src_config/com/android/launcher3/config/FeatureFlags.java b/packages/apps/Launcher3/src_config/com/android/launcher3/config/FeatureFlags.javaindex 8ee5497..ed35fda 100644--- a/packages/apps/Launcher3/src_config/com/android/launcher3/config/FeatureFlags.java+++ b/packages/apps/Launcher3/src_config/com/android/launcher3/config/FeatureFlags.java@@ -34,7 +34,7 @@ public final class FeatureFlags { // Feature flag to enable moving the QSB on the 0th screen of the workspace. public static final boolean QSB_ON_FIRST_SCREEN = true; // When enabled the all-apps icon is not added to the hotseat.- public static final boolean NO_ALL_APPS_ICON = true;+ public static final boolean NO_ALL_APPS_ICON = false; // When enabled fling down gesture on the first workspace triggers search. public static final boolean PULLDOWN_SEARCH = false; // When enabled the status bar may show dark icons based on the top of the wallpaper.效果图如下:
在现有的UI中, 增加 ^ 键的焦点使能
diff --git a/packages/apps/Launcher3/res/layout/page_indicator.xml b/packages/apps/Launcher3/res/layout/page_indicator.xmlindex 2e1b57f..22ef0b4 100644--- a/packages/apps/Launcher3/res/layout/page_indicator.xml+++ b/packages/apps/Launcher3/res/layout/page_indicator.xml@@ -23,5 +23,7 @@ android:layout_width="48dp" android:layout_height="match_parent" android:layout_gravity="center"- android:scaleType="centerInside"/>+ android:focusable="true"+ android:scaleType="centerInside"+ android:background="@drawable/bg_pill_focused"/> diff --git a/packages/apps/Launcher3/src/com/android/launcher3/FocusHelper.java b/packages/apps/Launcher3/src/com/android/launcher3/FocusHelper.javaindex 789c3f9..3071152 100644--- a/packages/apps/Launcher3/src/com/android/launcher3/FocusHelper.java+++ b/packages/apps/Launcher3/src/com/android/launcher3/FocusHelper.java@@ -268,7 +268,6 @@ public class FocusHelper { // Process the focus. int newIconIndex = FocusLogic.handleKeyEvent(keyCode, matrix, iconIndex, pageIndex, pageCount, Utilities.isRtl(v.getResources()));- View newIcon = null; switch (newIconIndex) { case FocusLogic.NEXT_PAGE_FIRST_ITEM:@@ -329,6 +328,11 @@ public class FocusHelper { playSoundEffect(keyCode, v); } }++ //support focus all apps.+ if(FocusLogic.NOOP == newIconIndex){+ v.getRootView().findViewById(R.id.all_apps_handle).requestFocus();+ } return consume; }在Hotseat上, 按DPAD_DOWN, ^ 键可以获取焦点, 再输入 DPAD_CENTER, 即可打开应用列表
效果如图:
处理焦点的相关代码
定义了按键处理监听, 供 Hotseat-Icon 使用
|-- packages/apps/Launcher3/src/com/android/launcher3/FocusHelper.java
/** * A keyboard listener we set on all the workspace icons. */class IconKeyEventListener implements View.OnKeyListener { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { return FocusHelper.handleIconKeyEvent(v, keyCode, event); }}/** * A keyboard listener we set on all the hotseat buttons. */class HotseatIconKeyEventListener implements View.OnKeyListener { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { return FocusHelper.handleHotseatButtonKeyEvent(v, keyCode, event); }}/** * A keyboard listener we set on full screen pages (e.g. custom content). */class FullscreenKeyEventListener implements View.OnKeyListener { @Override public boolean onKey(View v, int keyCode, KeyEvent event) { if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT || keyCode == KeyEvent.KEYCODE_DPAD_RIGHT || keyCode == KeyEvent.KEYCODE_PAGE_DOWN || keyCode == KeyEvent.KEYCODE_PAGE_UP) { // Handle the key event just like a workspace icon would in these cases. In this case, // it will basically act as if there is a single icon in the top left (so you could // think of the fullscreen page as a focusable fullscreen widget). return FocusHelper.handleIconKeyEvent(v, keyCode, event); } return false; }} /** * Handles key events in the workspace hotseat (bottom of the screen). * Currently we don't special case for the phone UI in different orientations, even though * the hotseat is on the side in landscape mode. This is to ensure that accessibility * consistency is maintained across rotations. */
static boolean handleHotseatButtonKeyEvent(View v, int keyCode, KeyEvent e) { boolean consume = FocusLogic.shouldConsume(keyCode); if (e.getAction() == KeyEvent.ACTION_UP || !consume) { return consume; } final Launcher launcher = Launcher.getLauncher(v.getContext()); final DeviceProfile profile = launcher.getDeviceProfile(); if (DEBUG) { Log.v(TAG, String.format( "Handle HOTSEAT BUTTONS keyevent=[%s] on hotseat buttons, isVertical=%s", KeyEvent.keyCodeToString(keyCode), profile.isVerticalBarLayout())); } // Initialize the variables. final Workspace workspace = (Workspace) v.getRootView().findViewById(R.id.workspace); final ShortcutAndWidgetContainer hotseatParent = (ShortcutAndWidgetContainer) v.getParent(); final CellLayout hotseatLayout = (CellLayout) hotseatParent.getParent(); final ItemInfo itemInfo = (ItemInfo) v.getTag(); int pageIndex = workspace.getNextPage(); int pageCount = workspace.getChildCount(); int iconIndex = hotseatParent.indexOfChild(v); int iconRank = ((CellLayout.LayoutParams) hotseatLayout.getShortcutsAndWidgets() .getChildAt(iconIndex).getLayoutParams()).cellX; final CellLayout iconLayout = (CellLayout) workspace.getChildAt(pageIndex); if (iconLayout == null) { // This check is to guard against cases where key strokes rushes in when workspace // child creation/deletion is still in flux. (e.g., during drop or fling // animation.) return consume; } final ViewGroup iconParent = iconLayout.getShortcutsAndWidgets(); ViewGroup parent = null; int[][] matrix = null; if (keyCode == KeyEvent.KEYCODE_DPAD_UP && !profile.isVerticalBarLayout()) { matrix = FocusLogic.createSparseMatrixWithHotseat(iconLayout, hotseatLayout, profile); iconIndex += iconParent.getChildCount(); parent = iconParent; } else if (keyCode == KeyEvent.KEYCODE_DPAD_LEFT && profile.isVerticalBarLayout()) { matrix = FocusLogic.createSparseMatrixWithHotseat(iconLayout, hotseatLayout, profile); iconIndex += iconParent.getChildCount(); parent = iconParent; } else if (keyCode == KeyEvent.KEYCODE_DPAD_RIGHT && profile.isVerticalBarLayout()) { keyCode = KeyEvent.KEYCODE_PAGE_DOWN; } else if (isUninstallKeyChord(e)) { matrix = FocusLogic.createSparseMatrix(iconLayout); if (UninstallDropTarget.supportsDrop(launcher, itemInfo)) { UninstallDropTarget.startUninstallActivity(launcher, itemInfo); } } else if (isDeleteKeyChord(e)) { matrix = FocusLogic.createSparseMatrix(iconLayout); launcher.removeItem(v, itemInfo, true /* deleteFromDb */); } else { // For other KEYCODE_DPAD_LEFT and KEYCODE_DPAD_RIGHT navigation, do not use the // matrix extended with hotseat. matrix = FocusLogic.createSparseMatrix(hotseatLayout); parent = hotseatParent; } // Process the focus. int newIconIndex = FocusLogic.handleKeyEvent(keyCode, matrix, iconIndex, pageIndex, pageCount, Utilities.isRtl(v.getResources())); View newIcon = null; switch (newIconIndex) { case FocusLogic.NEXT_PAGE_FIRST_ITEM: parent = getCellLayoutChildrenForIndex(workspace, pageIndex + 1); newIcon = parent.getChildAt(0); // TODO(hyunyoungs): handle cases where the child is not an icon but // a folder or a widget. workspace.snapToPage(pageIndex + 1); break; case FocusLogic.PREVIOUS_PAGE_FIRST_ITEM: parent = getCellLayoutChildrenForIndex(workspace, pageIndex - 1); newIcon = parent.getChildAt(0); // TODO(hyunyoungs): handle cases where the child is not an icon but // a folder or a widget. workspace.snapToPage(pageIndex - 1); break; case FocusLogic.PREVIOUS_PAGE_LAST_ITEM: parent = getCellLayoutChildrenForIndex(workspace, pageIndex - 1); newIcon = parent.getChildAt(parent.getChildCount() - 1); // TODO(hyunyoungs): handle cases where the child is not an icon but // a folder or a widget. workspace.snapToPage(pageIndex - 1); break; case FocusLogic.PREVIOUS_PAGE_LEFT_COLUMN: case FocusLogic.PREVIOUS_PAGE_RIGHT_COLUMN: // Go to the previous page but keep the focus on the same hotseat icon. workspace.snapToPage(pageIndex - 1); // If the page we are going to is fullscreen, have it take the focus from hotseat. CellLayout prevPage = (CellLayout) workspace.getPageAt(pageIndex - 1); boolean isPrevPageFullscreen = ((CellLayout.LayoutParams) prevPage .getShortcutsAndWidgets().getChildAt(0).getLayoutParams()).isFullscreen; if (isPrevPageFullscreen) { workspace.getPageAt(pageIndex - 1).requestFocus(); } break; case FocusLogic.NEXT_PAGE_LEFT_COLUMN: case FocusLogic.NEXT_PAGE_RIGHT_COLUMN: // Go to the next page but keep the focus on the same hotseat icon. workspace.snapToPage(pageIndex + 1); // If the page we are going to is fullscreen, have it take the focus from hotseat. CellLayout nextPage = (CellLayout) workspace.getPageAt(pageIndex + 1); boolean isNextPageFullscreen = ((CellLayout.LayoutParams) nextPage .getShortcutsAndWidgets().getChildAt(0).getLayoutParams()).isFullscreen; if (isNextPageFullscreen) { workspace.getPageAt(pageIndex + 1).requestFocus(); } break; } if (parent == iconParent && newIconIndex >= iconParent.getChildCount()) { newIconIndex -= iconParent.getChildCount(); } if (parent != null) { if (newIcon == null && newIconIndex >= 0) { newIcon = parent.getChildAt(newIconIndex); } if (newIcon != null) { newIcon.requestFocus(); playSoundEffect(keyCode, v); } }//当HOTSEAT中的ICON获取到焦点, 并触发了按键DOWN时, newIconIndex = -1.//Support focuse all apps.if(FocusLogic.NOOP == newIconIndex){//让 ^ 键请求焦点//当然, 也可以直接调用显示所有应用的函数显示应用列表v.getRootView().findViewById(R.id.all_apps_handle).requestFocus();} return consume; }|-- packages/apps/Launcher3/src/com/android/launcher3/Workspace.java
void addInScreen(View child, long container, long screenId, int x, int y, int spanX, int spanY, boolean insert, boolean computeXYFromRank) { if (container == LauncherSettings.Favorites.CONTAINER_DESKTOP) { if (getScreenWithId(screenId) == null) { Log.e(TAG, "Skipping child, screenId " + screenId + " not found"); // DEBUGGING - Print out the stack trace to see where we are adding from new Throwable().printStackTrace(); return; } } if (screenId == EXTRA_EMPTY_SCREEN_ID) { // This should never happen throw new RuntimeException("Screen id should not be EXTRA_EMPTY_SCREEN_ID"); } final CellLayout layout; if (container == LauncherSettings.Favorites.CONTAINER_HOTSEAT) { layout = mLauncher.getHotseat().getLayout(); child.setOnKeyListener(new HotseatIconKeyEventListener()); // Hide folder title in the hotseat if (child instanceof FolderIcon) { ((FolderIcon) child).setTextVisible(false); } if (computeXYFromRank) { x = mLauncher.getHotseat().getCellXFromOrder((int) screenId); y = mLauncher.getHotseat().getCellYFromOrder((int) screenId); } else { screenId = mLauncher.getHotseat().getOrderInHotseat(x, y); } } else { // Show folder title if not in the hotseat if (child instanceof FolderIcon) { ((FolderIcon) child).setTextVisible(true); } layout = getScreenWithId(screenId); child.setOnKeyListener(new IconKeyEventListener()); } ... }|-- packages/apps/Launcher3/src/com/android/launcher3/Hotseat.java
void resetLayout() { mContent.removeAllViewsInLayout(); if (!FeatureFlags.NO_ALL_APPS_ICON) { // Add the Apps button Context context = getContext(); int allAppsButtonRank = mLauncher.getDeviceProfile().inv.getAllAppsButtonRank(); LayoutInflater inflater = LayoutInflater.from(context); TextView allAppsButton = (TextView) inflater.inflate(R.layout.all_apps_button, mContent, false); Drawable d = context.getResources().getDrawable(R.drawable.all_apps_button_icon); mLauncher.resizeIconDrawable(d); int scaleDownPx = getResources().getDimensionPixelSize(R.dimen.all_apps_button_scale_down); Rect bounds = d.getBounds(); d.setBounds(bounds.left, bounds.top + scaleDownPx / 2, bounds.right - scaleDownPx, bounds.bottom - scaleDownPx / 2); allAppsButton.setCompoundDrawables(null, d, null, null); allAppsButton.setContentDescription(context.getString(R.string.all_apps_button_label)); allAppsButton.setOnKeyListener(new HotseatIconKeyEventListener()); if (mLauncher != null) { mLauncher.setAllAppsButton(allAppsButton); allAppsButton.setOnTouchListener(mLauncher.getHapticFeedbackTouchListener()); allAppsButton.setOnClickListener(mLauncher); allAppsButton.setOnLongClickListener(mLauncher); allAppsButton.setOnFocusChangeListener(mLauncher.mFocusHandler); } // Note: We do this to ensure that the hotseat is always laid out in the orientation of // the hotseat in order regardless of which orientation they were added int x = getCellXFromOrder(allAppsButtonRank); int y = getCellYFromOrder(allAppsButtonRank); CellLayout.LayoutParams lp = new CellLayout.LayoutParams(x, y, 1, 1); lp.canReorder = false; mContent.addViewToCellLayout(allAppsButton, -1, allAppsButton.getId(), lp, true); } }更多相关文章
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