RK3128 Android 7.1 默认竖屏 |
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首先强制进入桌面后竖屏 frameworks/base/services/core/java/com/android/server/wm/WindowManagerService.java里面修改WindowManagerService boolean updateOrientationFromAppTokensLocked(boolean inTransaction) { long ident = Binder.clearCallingIdentity(); try { // int req = getOrientationLocked(); /*SCREEN_ORIENTATION_LANDSCAPE :横屏显示,SCREEN_ORIENTATION_PORTRAIT : 竖屏显示*/ int req = ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE; if (req != mLastOrientation) { mLastOrientation = req;但是这样会有个问题，就是如果机器默认是横屏，你强制进入桌面是竖屏的话，会在进入桌面前，自动旋转，而这个旋转会导致开机动画旋转错乱 解决开机动画旋转： frameworks/base/cmds/bootanimation/BootAnimation.cpp BootAnimation::BootAnimation(bool shutdown) : Thread(false), mClockEnabled(true), mTimeIsAccurate(false), mTimeFormat12Hour(false), mTimeCheckThread(NULL) { mSession = new SurfaceComposerClient(); // If the system has already booted, the animation is not being used for a boot. mSystemBoot = !property_get_bool(BOOT_COMPLETED_PROP_NAME, 0); mShutdown = shutdown; mReverseAxis = false; mVideoFile = NULL; mVideoAnimation = false; //注释mShotdown判断, 启动时, 方向有可能设置为0以外的数值 //if(mShutdown){ sp dtoken(SurfaceComposerClient::getBuiltInDisplay( ISurfaceComposer::eDisplayIdMain)); // primary_display_token DisplayInfo dinfo; status_t status = SurfaceComposerClient::getDisplayInfo(dtoken, &dinfo); if (status == OK) { ALOGD("DISPLAY,W-H: %d-%d, ori: %d", dinfo.w, dinfo.h, dinfo.orientation); //解决启动时方向错误, 其中, 变量 rot根据需要的方向设置[0, 3]; int rot = 1;//90度 if (rot >= 0) { int w = dinfo.w; int h = dinfo.h; if(rot == 1 || rot == 3){//竖屏时, xy轴需要对调 mReverseAxis=true; h = dinfo.w; w = dinfo.h; }else{ mReverseAxis=false; } Rect layerStackRect(w, h); Rect displayRect(0, 0, w, h); SurfaceComposerClient::setDisplayProjection(dtoken, rot, layerStackRect, displayRect); } } //} } status_t BootAnimation::readyToRun() { mAssets.addDefaultAssets(); sp dtoken(SurfaceComposerClient::getBuiltInDisplay( ISurfaceComposer::eDisplayIdMain)); DisplayInfo dinfo; status_t status = SurfaceComposerClient::getDisplayInfo(dtoken, &dinfo); if (status) return -1; // create the native surface int curWidth = dinfo.w; int curHeight = dinfo.h; //注释 mShutdown, 屏幕旋转不只发生在关机动画时. if(/*mShutdown && */mReverseAxis){ curWidth = dinfo.h; curHeight = dinfo.w; } //...省略代码 }frameworks/base/services/core/java/com/android/server/wm/WindowManagerService.java private WindowManagerService(Context context, InputManagerService inputManager, boolean haveInputMethods, boolean showBootMsgs, boolean onlyCore) { //... 省略代码 // Add ourself to the Watchdog monitors. Watchdog.getInstance().addMonitor(this); //设置默认旋转方向, 与动画的默认方向保持一致 mRotation = Surface.ROTATION_90; SurfaceControl.openTransaction(); try { createWatermarkInTransaction(); } finally { SurfaceControl.closeTransaction(); } showEmulatorDisplayOverlayIfNeeded(); } /** * Updates the current rotation. * * Returns true if the rotation has been changed. In this case YOU * MUST CALL sendNewConfiguration() TO UNFREEZE THE SCREEN. */ public boolean updateRotationUncheckedLocked(boolean inTransaction) { //省略大量代码 if (DEBUG_ORIENTATION) { Slog.v(TAG_WM, "Selected orientation " + mLastOrientation + ", got rotation " + rotation + " which has " + (altOrientation ? "incompatible" : "compatible") + " metrics"); } //保持默认方向 /*if (mRotateOnBoot) { mRotation = Surface.ROTATION_0; rotation = Surface.ROTATION_90; }*/ if (mRotation == rotation && mAltOrientation == altOrientation) { // No change. return false; } //省略大量代码 }最终更新屏幕显示: frameworks/base/services/core/java/com/android/server/display/DisplayDevice.java /** * Sets the display projection while in a transaction. * * @param orientation defines the display's orientation * @param layerStackRect defines which area of the window manager coordinate * space will be used * @param displayRect defines where on the display will layerStackRect be * mapped to. displayRect is specified post-orientation, that is * it uses the orientation seen by the end-user */ public final void setProjectionInTransactionLocked(int orientation, Rect layerStackRect, Rect displayRect) { if (mCurrentOrientation != orientation || mCurrentLayerStackRect == null || !mCurrentLayerStackRect.equals(layerStackRect) || mCurrentDisplayRect == null || !mCurrentDisplayRect.equals(displayRect)) { mCurrentOrientation = orientation; if (mCurrentLayerStackRect == null) { mCurrentLayerStackRect = new Rect(); } mCurrentLayerStackRect.set(layerStackRect); if (mCurrentDisplayRect == null) { mCurrentDisplayRect = new Rect(); } mCurrentDisplayRect.set(displayRect); //与Bootanimation中的函数类似 SurfaceControl.setDisplayProjection(mDisplayToken, orientation, layerStackRect, displayRect); } } |
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