Standardmäßig wird das Gerät mit einem vertikalen Bildschirm eingeschaltet. Wenn das Gerät über einen Schwerkraftsensor verfügt, wird die Bildschirmausrichtung entsprechend der automatischen Drehung und dem Schwerkraftsensor eingestellt. Wenn das Gerät mit einem horizontalen Bildschirm eingeschaltet werden soll, oder Der Benutzer kann den horizontalen oder vertikalen Bildschirmwechsel anpassen. Der Änderungsbedarf umfasst im Wesentlichen vier Hauptblöcke:
Fügen Sie zunächst das benutzerdefinierte Attribut persist.sys.panel.orientation=1 hinzu. Die optionalen Werte sind 0,1,2,3, wobei 0,2 ein vertikaler Bildschirm und 1,3 ein horizontaler Bildschirm ist
- Boot-Animation
//frameworks/base/cmds/bootanimation/BootAnimation.cpp status_t BootAnimation::readyToRun() { resolution = limitSurfaceSize(resolution.width, resolution.height); //phoebe add start char rAngleValue[PROPERTY_VALUE_MAX]; property_get("persist.sys.panel.orientation", rAngleValue, "1"); int rAngle = atoi(rAngleValue); SurfaceComposerClient::Transaction t; int temp = resolution.height; ui::Rotation rota; switch(rAngle){ case 0: rota=ui::ROTATION_0; break; case 1: resolution.height= resolution.width; resolution.width= temp; rota=ui::ROTATION_90; break; case 2: rota=ui::ROTATION_180; break; case 3: resolution.height= resolution.width; resolution.width= temp; rota=ui::ROTATION_270; break; default: rota=ui::ROTATION_90; break; } Rect destRect(resolution.width, resolution.height); ALOGD("BootAnimation default set rotation to be %d...",rAngle); t.setDisplayProjection(mDisplayToken, rota, destRect, destRect); //phoebe add end // create the native surface sp<SurfaceControl> control = session()->createSurface(String8("BootAnimation"), resolution.getWidth(), resolution.getHeight(), PIXEL_FORMAT_RGB_565); // SurfaceComposerClient::Transaction t; // this guest property specifies multi-display IDs to show the boot animation // multiple ids can be set with comma (,) as separator, for example: // setprop persist.boot.animation.displays 19260422155234049,19261083906282754 Vector<uint64_t> physicalDisplayIds; ... } - UI-Änderung
// frameworks/base/core/res/res/values/config.xml 关闭自动旋转 <bool name="config_supportAutoRotation">false</bool> //默认为横屏 <integer name="config_lidOpenRotation">90</integer> //frameworks/base/core/java/android/view/DisplayInfo.java //初始值为设置的属性 public int rotation= SystemProperties.getInt("persist.sys.panel.orientation",1); //frameworks/base/services/core/java/com/android/server/display/LogicalDisplay.java public void configureDisplayLocked(SurfaceControl.Transaction t, DisplayDevice device, boolean isBlanked) { //... //orientation = (orientation + displayDeviceInfo.rotation) % 4; //方向为我们设置的方向 orientation = SystemProperties.getInt("persist.sys.panel.orientation", 1); Slog.d("zmm","zmm add for configureDisplayLocked:"+orientation); //... } } //frameworks/base/services/core/java/com/android/server/wm/DisplayRotation.java 保存用户设置的方向 void setUserRotation(int userRotationMode, int userRotation) { if (isDefaultDisplay) { // We'll be notified via settings listener, so we don't need to update internal values. ... SystemProperties.set("persist.sys.panel.orientation",""+userRotation); return; } } - Die Bildschirmberührungskoordinaten werden auf den horizontalen Bildschirm geändert
//frameworks/native/services/surfaceflinger/DisplayDevice.cpp DisplayDevice::DisplayDevice(DisplayDeviceCreationArgs& args) : mFlinger(args.flinger), mDisplayToken(args.displayToken), mSequenceId(args.sequenceId), mConnectionType(args.connectionType), mCompositionDisplay{args.compositionDisplay}, mPhysicalOrientation(args.physicalOrientation), mIsPrimary(args.isPrimary), mIsPowerModeOverride(false){ //.. setPowerMode(args.initialPowerMode); //nick.tan add screen flipping char property_rotation[PROPERTY_VALUE_MAX]; // int defaultOrientation = 0; property_get("persist.sys.panel.orientation", property_rotation, "1"); int defaultOrientation = atoi(property_rotation); ui::Rotation rota; switch(defaultOrientation) { case 0: rota = ui::ROTATION_0; break; case 1: rota = ui::ROTATION_90; break; case 2: rota = ui::ROTATION_180; break; case 3: rota = ui::ROTATION_270; break; default: rota = ui::ROTATION_90; break; } ALOGE("zmm add for DisplayDevice:%d",defaultOrientation); // initialize the display orientation transform. setProjection(rota, Rect::INVALID_RECT, Rect::INVALID_RECT); } //frameworks/native/services/surfaceflinger/SurfaceFlinger.cpp void SurfaceFlinger::onInitializeDisplays() { const auto display = getDefaultDisplayDeviceLocked(); if (!display) return; //... //nick.tan add screen flipping char property_rotation[PROPERTY_VALUE_MAX]; //int defaultOrientation = 0; property_get("persist.sys.panel.orientation", property_rotation, "1"); int defaultOrientation = atoi(property_rotation); ui::Rotation rota; switch(defaultOrientation) { case 0: rota = ui::ROTATION_0; break; case 1: rota = ui::ROTATION_90; break; case 2: rota = ui::ROTATION_180; break; case 3: rota = ui::ROTATION_270; break; default: rota = ui::ROTATION_90; break; } ALOGE("zmm add for SurfaceFlinger:%d",defaultOrientation); d.orientation = rota; //... } - Modifikation von SystemUi und Launcher
//frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/NavigationBarFragment.java @Override public void onViewCreated(View view, @Nullable Bundle savedInstanceState) { //... // Currently there is no accelerometer sensor on non-default display. if (mIsOnDefaultDisplay) { final RotationButtonController rotationButtonController = mNavigationBarView.getRotationButtonController(); rotationButtonController.addRotationCallback(mRotationWatcher); // Reset user rotation pref to match that of the WindowManager if starting in locked // mode. This will automatically happen when switching from auto-rotate to locked mode. if (display != null && rotationButtonController.isRotationLocked()) { 导航栏会重新设置方向，故去掉 // rotationButtonController.setRotationLockedAtAngle(display.getRotation()); } } else { mDisabledFlags2 |= StatusBarManager.DISABLE2_ROTATE_SUGGESTIONS; } //... } //frameworks/base/packages/SystemUI/src/com/android/systemui/statusbar/phone/RotationButtonController.java 需调整navigationbar位置。系统设置为横屏显示后，横屏后 navigationBar默认在左边。需修改DisplayPolicy中的navigationBarPosition函数，屏蔽判断部分，使其直接返回NAV_BAR_BOTTOM。 private boolean shouldOverrideUserLockPrefs(final int rotation) { if (mSkipOverrideUserLockPrefsOnce) { mSkipOverrideUserLockPrefsOnce = false; return false; } // Only override user prefs when returning to the natural rotation (normally portrait). // Don't let apps that force landscape or 180 alter user lock. // return rotation == NATURAL_ROTATION; //默认不支持旋转 return false; } //frameworks/base/services/core/java/com/android/server/wm/DisplayPolicy.java void updateConfigurationAndScreenSizeDependentBehaviors() { final Resources res = getCurrentUserResources(); // mNavigationBarCanMove = // mDisplayContent.mBaseDisplayWidth != mDisplayContent.mBaseDisplayHeight // && res.getBoolean(R.bool.config_navBarCanMove); mNavigationBarCanMove=false; Slog.d(TAG,"zmm add for updateConfigurationAndScreenSizeDependentBehaviors"+mNavigationBarCanMove); mDisplayContent.getDisplayRotation().updateUserDependentConfiguration(res); } //同样hostseat也在右侧，如果需要在底部，。修改hotseat_transpose_layout_with_orientation的值，由true改成false。 //packages/apps/Launcher3/res/values/config.xml <!-- Hotseat --> - <bool name="hotseat_transpose_layout_with_orientation">true</bool> + <bool name="hotseat_transpose_layout_with_orientation">false</bool> 配置hotseat 位置居于底部后，allapp界面部分改变了，本身是4x4的布局，现在图标变小填充并且不再是4x4。表现为右侧留白。需修改availableHeightPx 和availableWidthPx 部分。 //packages/apps/Launcher3/src/com/android/launcher3/DeviceProfile.java public DeviceProfile(Context context, InvariantDeviceProfile inv, Point minSize, Point maxSize, int width, int height, boolean isLandscape, boolean isMultiWindowMode) { this.inv = inv; this.isLandscape = isLandscape; this.isMultiWindowMode = isMultiWindowMode; // Determine sizes. widthPx = width; heightPx = height; if (isLandscape) { /* availableWidthPx = maxSize.x; availableHeightPx = minSize.y;*/ availableWidthPx = minSize.x; availableHeightPx = maxSize.y; } else { availableWidthPx = minSize.x; availableHeightPx = maxSize.y; } workspace区域添加的图标显示不全。具体修改如下 //packages/apps/Launcher3/src/com/android/launcher3/CellLayout.java public class CellLayout extends ViewGroup implements Transposable { if (mFixedCellWidth < 0 || mFixedCellHeight < 0) { int cw = DeviceProfile.calculateCellWidth(childWidthSize, mCountX); - int ch = DeviceProfile.calculateCellHeight(childHeightSize, mCountY); + int ch = childHeightSize;//DeviceProfile.calculateCellHeight(childHeightSize, mCountY); if (cw != mCellWidth || ch != mCellHeight) { mCellWidth = cw; mCellHeight = ch; 移除workspace区域的google搜索：注释掉bindAndInitFirstWorkspaceScreen中qsb部分。 //packages/apps/Launcher3/src/com/android/launcher3/Workspace.java public void bindAndInitFirstWorkspaceScreen(View qsb) { if (!FeatureFlags.QSB_ON_FIRST_SCREEN) { return; } // Add the first page CellLayout firstPage = insertNewWorkspaceScreen(Workspace.FIRST_SCREEN_ID, 0); // Always add a QSB on the first screen. /* if (qsb == 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. qsb = LayoutInflater.from(getContext()) .inflate(R.layout.search_container_workspace,firstPage, false); } CellLayout.LayoutParams lp = new CellLayout.LayoutParams(0, 0, firstPage.getCountX(), 1); lp.canReorder = false; if (!firstPage.addViewToCellLayout(qsb, 0, R.id.search_container_workspace, lp, true)) { Log.e(TAG, "Failed to add to item at (0, 0) to CellLayout"); }*/ }Das Obige kann den horizontalen Bildschirm beim Start realisieren, und der Benutzer kann die Eigenschaft zum Umschalten festlegen
SystemProperties.put("persist.sys.panel.orientation","1");Tagesbilanz: Ein arbeitsreiches, aber auch erfüllendes Jahr. Der Artikel wurde schon einmal geschrieben, aber nur lokal aufgezeichnet. In der heutigen Mittagspause habe ich ihn aussortiert und als Zusammenfassung hochgeladen.
Einzelzyklus „Erfüllung“