android 平板固定横屏,Android9.0 MTK 平板横屏方案修改

拆解步骤

1、app强制横屏显现，无视android:screenOrientation=”portrait”属性

2、屏幕接触坐标修正为横屏

3、开机动画横屏

4、开机logo、关机充电动画横屏

5、RecoveryUI横屏

上代码

1、app强制横屏显现

修正rotationForOrientationLw(),默许回来270

frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager.java

@OverridepublicintrotationForOrientationLw(intorientation,intlastRotation,booleandefaultDisplay){

….synchronized(mLock){

…default://ForUSER,UNSPECIFIED,NOSENSOR,SENSORandFULL_SENSOR,//justreturnthepreferredorientationwealreadycalculated.if(preferredRotation>=0){returnpreferredRotation;

}//returnSurface.ROTATION_0;returnSurface.ROTATION_270;//cczhengaddforlandscap}

}

}

activity默许强制属性为SCREEN_ORIENTATION_LANDSCAPE

frameworks\base\services\core\java\com\android\server\wm\WindowManagerService.java

booleanupdateOrientationFromAppTokensLocked(intdisplayId,booleanforceUpdate){longident=Binder.clearCallingIdentity();try{finalDisplayContentdc=mRoot.getDisplayContent(displayId);//finalintreq=dc.getOrientation();intreq=android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;//cczhengaddforlandscapif(req!=dc.getLastOrientation()||forceUpdate){if(DEBUG_ORIENTATION){

Slog.v(TAG,”updateOrientation:req=”+req+”,mLastOrientation=”+dc.getLastOrientation(),newThrowable(“updateOrientation”));

}

dc.setLastOrientation(req);//sendamessagetoPolicyindicatingorientationchangetotake//actionlikedisabling/enablingsensorsetc.,//TODO(multi-display):Implementpolicyforsecondarydisplays.if(dc.isDefaultDisplay){

mPolicy.setCurrentOrientationLw(req);

}returndc.updateRotationUnchecked(forceUpdate);

}returnfalse;

}finally{

Binder.restoreCallingIdentity(ident);

}

}

DisPlayContent显现mRotation默许改为3(270)

frameworks\base\services\core\java\com\android\server\wm\DisplayContent.java

/**

*Currentrotationofthedisplay.

*Constantsasper{@linkandroid.view.Surface.Rotation}.

*

*@see#updateRotationUnchecked()

*///privateintmRotation=0;privateintmRotation=3;//cczhengaddforlandscap

修正默许值config_reverseDefaultRotation为true，翻转显现角度

frameworks\base\core\res\res\values\config.xml

true

270

2、屏幕接触坐标修正为横屏

对调frame的宽和高,设置方向为270

frameworks\native\services\surfaceflinger\DisplayDevice.cpp

voidDisplayDevice::setProjection(intorientation,constRect&newViewport,constRect&newFrame){Rectviewport(newViewport);Rectframe(newFrame);constintw=mDisplayWidth;constinth=mDisplayHeight;

TransformR;

DisplayDevice::orientationToTransfrom(orientation,w,h,&R);if(!frame.isValid()){//thedestinationframecanbeinvalidifithasneverbeenset,//inthatcaseweassumethewholedisplayframe.//cczhengaddforlandscap//frame=Rect(w,h);if(w

frame=Rect(h,w);elseframe=Rect(w,h);

}

….

}//clang-formatoffDisplayDevice::DisplayDevice(constsp&flinger,

DisplayTypetype,

int32_thwcId,

boolisSecure,constwp&displayToken,constsp&nativeWindow,constsp&displaySurface,

std::unique_ptrrenderSurface,intdisplayWidth,intdisplayHeight,

boolhasWideColorGamut,constHdrCapabilities&hdrCapabilities,constint32_tsupportedPerFrameMetadata,conststd::unordered_map&hwcColorModes,intinitialPowerMode)

…..

mHdrCapabilities=HdrCapabilities(types,maxLuminance,maxAverageLuminance,minLuminance);//initializethedisplayorientationtransform.//setProjection(DisplayState::eOrientationDefault,mViewport,mFrame);//cczhengaddforlandscapsetProjection(DisplayState::eOrientation270,mViewport,mFrame);

#ifdefMTK_SF_DEBUG_SUPPORT

mFps=FpsCounterLoader::getInstance().create();

#endif

}

frameworks\native\services\surfaceflinger\SurfaceFlinger.cpp

voidSurfaceFlinger::onInitializeDisplays(){//resetscreenorientationanduseprimarylayerstackVectorstate;

Vectordisplays;

DisplayStated;

d.what=DisplayState::eDisplayProjectionChanged|

DisplayState::eLayerStackChanged;

d.token=mBuiltinDisplays[DisplayDevice::DISPLAY_PRIMARY];

d.layerStack=0;//d.orientation=DisplayState::eOrientationDefault;//cczhengaddforlandscapd.orientation=DisplayState::eOrientation270;

d.frame.makeInvalid();

d.viewport.makeInvalid();

d.width=0;

d.height=0;

displays.add(d);

….

}

3、开机动画横屏

对调createSurface()的w和h

frameworks\base\cmds\bootanimation\BootAnimation.cpp

status_tBootAnimation::readyToRun(){

mAssets.addDefaultAssets();spdtoken(SurfaceComposerClient::getBuiltInDisplay(

ISurfaceComposer::eDisplayIdMain));

DisplayInfodinfo;

status_tstatus=SurfaceComposerClient::getDisplayInfo(dtoken,&dinfo);if(status)return-1;//createthenativesurface/*spcontrol=session()->createSurface(String8(“BootAnimation”),

dinfo.w,dinfo.h,PIXEL_FORMAT_RGB_565);*///cczhengaddforlandscap[S]spcontrol;if(dinfo.w

control=session()->createSurface(String8(“BootAnimation”),

dinfo.h,dinfo.w,PIXEL_FORMAT_RGB_565);elsecontrol=session()->createSurface(String8(“BootAnimation”),

dinfo.w,dinfo.h,PIXEL_FORMAT_RGB_565);//cczhengaddforlandscap[E]SurfaceComposerClient::Transactiont;

t.setLayer(control,0x40000000)

.apply();

…..

}

开机动画制造替换后边弥补。。。

4、开机logo、关机充电动画横屏

开机logo定义屏幕分辨率以对应资源文件夹的方位为

vendor\mediatek\proprietary\bootable\bootloader\lk\project\xxxx.mk没有则看下面的

device\mediateksample\xxxx\ProjectConfig.mk

mk中的BOOT_LOGO=wxga

对应的资源文件方位在vendor/mediatek/proprietary/bootable/bootloader/lk/dev/logo/wxga

能够看到wxga中都是竖屏的图片，而wxganl中已经是横屏的图片

ubWkNt.png

则咱们将BOOT_LOGO修正为wxganl即可

接下来还需求继续修正显现的角度，仍旧改成270，否则会呈现花屏的现象

开机第一张图片uboot对应显现

vendor\mediatek\proprietary\bootable\bootloader\lk\platform\mt6765\mt_logo.c

voidinit_fb_screen(){

…..//inJB2.MPneedtoallignwidthandheightto32,butjb5.mpneedn’tphical_screen.needAllign=1;

phical_screen.allignWidth=ALIGN_TO(CFG_DISPLAY_WIDTH,MTK_FB_ALIGNMENT);/*InGB,noneedtoadjust180showinglogo,forfbdriverdealingthechange*//*butinJB,needadjustitforscreen180roration*/phical_screen.need180Adjust=0;//needsyncwithchipdriverdprintf(INFO,”[lklogo:%s%d]MTK_LCM_PHYSICAL_ROTATION=%s\n”,__FUNCTION__,__LINE__,MTK_LCM_PHYSICAL_ROTATION);if(0==strncmp(MTK_LCM_PHYSICAL_ROTATION,”270″,3)){

phical_screen.rotation=270;

}elseif(0==strncmp(MTK_LCM_PHYSICAL_ROTATION,”90″,2)){

phical_screen.rotation=90;

}elseif(0==strncmp(MTK_LCM_PHYSICAL_ROTATION,”180″,3)&&(phical_screen.need180Adjust==1)){

phical_screen.rotation=180;

}else{

phical_screen.rotation=270;//cczhengaddforlandscap}

….

开机第二张图片kernel对应显现

vendor\mediatek\proprietary\external\libshowlogo\charging_animation.cpp

intanim_fb_init(void){

…..

phical_screen.needAllign=1;

phical_screen.need180Adjust=1;

phical_screen.fb_size=fb_size;if(MTK_LOG_ENABLE==1){

SLOGD(“[libshowlogo:%s%d]MTK_LCM_PHYSICAL_ROTATION=%s\n”,__FUNCTION__,__LINE__,MTK_LCM_PHYSICAL_ROTATION);

}if(0==strncmp(MTK_LCM_PHYSICAL_ROTATION,”270″,3))

{

phical_screen.rotation=270;

}elseif(0==strncmp(MTK_LCM_PHYSICAL_ROTATION,”90″,2)){

phical_screen.rotation=90;

}elseif(0==strncmp(MTK_LCM_PHYSICAL_ROTATION,”180″,3)&&(phical_screen.need180Adjust==1)){

phical_screen.rotation=180;

}else{

phical_screen.rotation=270;//cczhengaddforlandscap}if(MTK_LOG_ENABLE==1){

SLOGD(“[libshowlogo]phical_screen:width=%d,height=%d,bits_per_pixel=%d,needAllign=%d,allignWidth=%drotation=%d,need180Adjust=%d\n”,

phical_screen.width,phical_screen.height,

phical_screen.bits_per_pixel,phical_screen.needAllign,

phical_screen.allignWidth,phical_screen.rotation,phical_screen.need180Adjust);

SLOGD(“[libshowlogo:%s%d]showoldanimtion=1,runningshow_animationm_ver%d\n”,__FUNCTION__,__LINE__,show_animationm_ver);

SLOGD(“[libshowlogo:%s%d]draw_anim_mode=1,runningmode%d\n”,__FUNCTION__,__LINE__,draw_anim_mode);

}return0;

}

假如呈现充电动画图片错位的现象，大都都是由于图形制作点和屏幕尺度不匹配导致的。可通过调整cust_display.h中方位参数

AndroidM后：/vendor/mediatek/proprietary/external/libshowlogo/cust_display.h

AndroidM前：/vendor/mediatek/proprietary/bootable/bootloader/lk/target/${PROJECT}/include/target/cust_display.h

(1，运用oldversion动画计划的调整如下设置，

#defineBAR_LEFT(215)

#defineBAR_TOP(156)

#defineBAR_RIGHT(265)

#defineBAR_BOTTOM(278)

能够用windows的画图软件翻开第1点里提到的图片，根据电池边框的像素来调整。

这里坐标的参阅原点是左上角，背景图片的左上角是(0,0)，这四个值都是相对于左上角的坐标来确认的，因此RIGHT>LEFT，BOTTOM>TOP

小技巧：1)翻开画图软件，挑选检查->缩放->自定义，将图片放到到800%

2)挑选检查->缩放->显现网格

这样就能够看到一个一个的像素

(2，运用newversion动画计划调整如下设置：

#defineCAPACITY_LEFT(278)#defineCAPACITY_TOP(556)#defineCAPACITY_RIGHT(441)#defineCAPACITY_BOTTOM(817)

5、RecoveryUI横屏

参阅之前写的文章MTKRecovery模式横屏修正(适用于6.0+8.1+9.0)

6、体系导航栏方位调整，横屏后navigationBarPosition默许在左面

作为平板项目，需求将方位改为底部,直接修正navigationBarPosition()回来NAV_BAR_BOTTOM

frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager.java

@NavigationBarPositionprivateintnavigationBarPosition(intdisplayWidth,intdisplayHeight,intdisplayRotation){//cchznegannotaionforlandscape/*if(mNavigationBarCanMove&&displayWidth>displayHeight){

if(displayRotation==Surface.ROTATION_270){

returnNAV_BAR_LEFT;

}else{

returnNAV_BAR_RIGHT;

}

}*/returnNAV_BAR_BOTTOM;

}

这样方位是变为底部了，但是三个按钮都重叠在一起了，需求修正SystemUI的布局显现

在这里插入图片描绘

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\phone\NavigationBarView.java

privatevoidupdateRotatedViews(){//cczhengchangerot0rot90forlandscapemRotatedViews[Surface.ROTATION_0]=

mRotatedViews[Surface.ROTATION_180]=findViewById(R.id.rot90);//mRotatedViews[Surface.ROTATION_180]=findViewById(R.id.rot0);mRotatedViews[Surface.ROTATION_270]=

mRotatedViews[Surface.ROTATION_90]=findViewById(R.id.rot0);//mRotatedViews[Surface.ROTATION_90]=findViewById(R.id.rot90);updateCurrentView();

}

顺带再调整下NavigationBarView的默许高度和左面Back键区域太大的问题

vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\phone\NavigationBarInflaterView.java

privateViewcreateView(StringbuttonSpec,ViewGroupparent,LayoutInflaterinflater){

Viewv=null;

Stringbutton=extractButton(buttonSpec);if(LEFT.equals(button)){//cchzhengchangeNAVSPACEtoMENU_IMEforsmallleftbackclickareaStrings=Dependency.get(TunerService.class).getValue(NAV_BAR_LEFT,MENU_IME_ROTATE/*NAVSPACE*/);

button=extractButton(s);

}elseif(RIGHT.equals(button)){

Strings=Dependency.get(TunerService.class).getValue(NAV_BAR_RIGHT,MENU_IME_ROTATE);

button=extractButton(s);

}

…

frameworks\base\core\res\res\values\dimens.xml

“navigation_bar_height”>30dp

ok，这样就大功告成了，完美的横屏适配