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拆解步骤
1、app 强制横屏显示，无视 android:screenOrientation="portrait" 属性
2、屏幕触摸坐标修改为横屏
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 强制横屏显示
修改 rotationForOrientationLw(), 默认返回 270
frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager.java
@Override
public int rotationForOrientationLw(int orientation, int lastRotation, boolean defaultDisplay) {
....
synchronized (mLock) {
...
default:
// For USER, UNSPECIFIED, NOSENSOR, SENSOR and FULL_SENSOR,
// just return the preferred orientation we already calculated.
if (preferredRotation >= 0) {
return preferredRotation;
}
// return Surface.ROTATION_0;
return Surface.ROTATION_270;//cczheng add for land scap
}
}
}
activity 默认强制属性为 SCREEN_ORIENTATION_LANDSCAPE
frameworks\base\services\core\java\com\android\server\wm\WindowManagerService.java
boolean updateOrientationFromAppTokensLocked(int displayId, boolean forceUpdate) {
long ident = Binder.clearCallingIdentity();
try {
final DisplayContent dc = mRoot.getDisplayContent(displayId);
// final int req = dc.getOrientation();
int req = android.content.pm.ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE;//cczheng add for land scap
if (req != dc.getLastOrientation() || forceUpdate) {
if (DEBUG_ORIENTATION) {
Slog.v(TAG, "updateOrientation: req= " + req + ", mLastOrientation= "
+ dc.getLastOrientation(), new Throwable("updateOrientation"));
}
dc.setLastOrientation(req);
//send a message to Policy indicating orientation change to take
//action like disabling/enabling sensors etc.,
// TODO(multi-display): Implement policy for secondary displays.
if (dc.isDefaultDisplay) {
mPolicy.setCurrentOrientationLw(req);
}
return dc.updateRotationUnchecked(forceUpdate);
}
return false;
} finally {
Binder.restoreCallingIdentity(ident);
}
}
DisPlayContent 显示 mRotation 默认改为 3 (270)
frameworks\base\services\core\java\com\android\server\wm\DisplayContent.java
/**
* Current rotation of the display.
* Constants as per {@link android.view.Surface.Rotation}.
*
* @see #updateRotationUnchecked()
*/
// private int mRotation = 0;
private int mRotation = 3;//cczheng add for land scap
修改默认值 config_reverseDefaultRotation 为 true，翻转显示角度
frameworks\base\core\res\res\values\config.xml
<!-- If true, the direction rotation is applied to get to an application's requested
orientation is reversed. Normally, the model is that landscape is
clockwise from portrait; thus on a portrait device an app requesting
landscape will cause a clockwise rotation, and on a landscape device an
app requesting portrait will cause a counter-clockwise rotation. Setting
true here reverses that logic. -->
<!-- cczheng add for land scap -->
<bool name="config_reverseDefaultRotation">true</bool>
<!-- The number of degrees to rotate the display when the keyboard is open.
A value of -1 means no change in orientation by default. -->
<!-- cczheng add for land scap -->
<integer name="config_lidOpenRotation">270</integer>
2、屏幕触摸坐标修改为横屏
对调 frame 的宽和高,设置方向为 270
frameworks\native\services\surfaceflinger\DisplayDevice.cpp
void DisplayDevice::setProjection(int orientation,
const Rect& newViewport, const Rect& newFrame) {
Rect viewport(newViewport);
Rect frame(newFrame);
const int w = mDisplayWidth;
const int h = mDisplayHeight;
Transform R;
DisplayDevice::orientationToTransfrom(orientation, w, h, &R);
if (!frame.isValid()) {
// the destination frame can be invalid if it has never been set,
// in that case we assume the whole display frame.
//cczheng add for land scap
// frame = Rect(w, h);
if (w < h)
frame = Rect(h, w);
else
frame = Rect(w, h);
}
....
}
// clang-format off
DisplayDevice::DisplayDevice(
const sp<SurfaceFlinger>& flinger,
DisplayType type,
int32_t hwcId,
bool isSecure,
const wp<IBinder>& displayToken,
const sp<ANativeWindow>& nativeWindow,
const sp<DisplaySurface>& displaySurface,
std::unique_ptr<RE::Surface> renderSurface,
int displayWidth,
int displayHeight,
bool hasWideColorGamut,
const HdrCapabilities& hdrCapabilities,
const int32_t supportedPerFrameMetadata,
const std::unordered_map<ColorMode, std::vector<RenderIntent>>& hwcColorModes,
int initialPowerMode)
.....
mHdrCapabilities = HdrCapabilities(types, maxLuminance, maxAverageLuminance, minLuminance);
// initialize the display orientation transform.
// setProjection(DisplayState::eOrientationDefault, mViewport, mFrame);
//cczheng add for land scap
setProjection(DisplayState::eOrientation270, mViewport, mFrame);
#ifdef MTK_SF_DEBUG_SUPPORT
mFps = FpsCounterLoader::getInstance().create();
#endif
}
frameworks\native\services\surfaceflinger\SurfaceFlinger.cpp
void SurfaceFlinger::onInitializeDisplays() {
// reset screen orientation and use primary layer stack
Vector<ComposerState> state;
Vector<DisplayState> displays;
DisplayState d;
d.what = DisplayState::eDisplayProjectionChanged |
DisplayState::eLayerStackChanged;
d.token = mBuiltinDisplays[DisplayDevice::DISPLAY_PRIMARY];
d.layerStack = 0;
//d.orientation = DisplayState::eOrientationDefault;
//cczheng add for land scap
d.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_t BootAnimation::readyToRun() {
mAssets.addDefaultAssets();
sp<IBinder> dtoken(SurfaceComposerClient::getBuiltInDisplay(
ISurfaceComposer::eDisplayIdMain));
DisplayInfo dinfo;
status_t status = SurfaceComposerClient::getDisplayInfo(dtoken, &dinfo);
if (status)
return -1;
// create the native surface
/*sp<SurfaceControl> control = session()->createSurface(String8("BootAnimation"),
dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);*/
//cczheng add for land scap [S]
sp<SurfaceControl> control;
if(dinfo.w < dinfo.h)
control = session()->createSurface(String8("BootAnimation"),
dinfo.h, dinfo.w, PIXEL_FORMAT_RGB_565);
else
control = session()->createSurface(String8("BootAnimation"),
dinfo.w, dinfo.h, PIXEL_FORMAT_RGB_565);
//cczheng add for land scap [E]
SurfaceComposerClient::Transaction t;
t.setLayer(control, 0x40000000)
.apply();
.....
}
开机动画制作替换后面补充。。。
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位置为
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
对应的资源文件位置在 vendor/mediatek/proprietary/bootable/bootloader/lk/dev/logo/wxga
可以看到 wxga 中都是竖屏的图片，而 wxganl 中已经是横屏的图片
则我们将 BOOT_LOGO 修改为 wxganl 即可
接下来还需要继续修改显示的角度，依旧改成 270，不然会出现花屏的现象
开机第一张图片 uboot 对应显示
vendor\mediatek\proprietary\bootable\bootloader\lk\platform\mt6765\mt_logo.c
void init_fb_screen()
{
.....
// in JB2.MP need to allign width and height to 32 ,but jb5.mp needn't
phical_screen.needAllign = 1;
phical_screen.allignWidth = ALIGN_TO(CFG_DISPLAY_WIDTH, MTK_FB_ALIGNMENT);
/* In GB, no need to adjust 180 showing logo ,for fb driver dealing the change */
/* but in JB, need adjust it for screen 180 roration */
phical_screen.need180Adjust = 0; // need sync with chip driver
dprintf(INFO, "[lk logo: %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;
} else if (0 == strncmp(MTK_LCM_PHYSICAL_ROTATION, "90", 2)) {
phical_screen.rotation = 90;
} else if (0 == strncmp(MTK_LCM_PHYSICAL_ROTATION, "180", 3) && (phical_screen.need180Adjust == 1)) {
phical_screen.rotation = 180;
} else {
phical_screen.rotation = 270;//cczheng add for land scap
}
....
开机第二张图片 kernel 对应显示
vendor\mediatek\proprietary\external\libshowlogo\charging_animation.cpp
int anim_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;
} else if(0 == strncmp(MTK_LCM_PHYSICAL_ROTATION, "90", 2)){
phical_screen.rotation = 90;
} else if(0 == strncmp(MTK_LCM_PHYSICAL_ROTATION, "180", 3) && (phical_screen.need180Adjust == 1)){
phical_screen.rotation = 180;
} else {
phical_screen.rotation = 270;//cczheng add for land scap
}
if (MTK_LOG_ENABLE == 1) {
SLOGD("[libshowlogo]phical_screen: width= %d,height= %d,bits_per_pixel =%d,needAllign = %d,allignWidth=%d rotation =%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]show old animtion= 1, running show_animationm_ver %d\n",__FUNCTION__,__LINE__, show_animationm_ver);
SLOGD("[libshowlogo: %s %d]draw_anim_mode = 1, running mode %d\n",__FUNCTION__,__LINE__, draw_anim_mode);
}
return 0;
}
如果出现充电动画图片错位的现象，多数都是因为图形绘制点和屏幕尺寸不匹配导致的。可通过调整 cust_display.h 中位置参数
Android M 后：/vendor/mediatek/proprietary/external/libshowlogo/cust_display.h
Android M 前： /vendor/mediatek/proprietary/bootable/bootloader/lk/target/${PROJECT}/include/target/cust_display.h
(1 ，使用old version动画方案的调整如下设置，
#define BAR_LEFT (215)
#define BAR_TOP (156)
#define BAR_RIGHT (265)
#define BAR_BOTTOM (278)
可以用windows的画图软件打开第1点里提到的图片，根据电池边框的像素来调整。
这里坐标的参考原点是左上角，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定的，因此RIGHT > LEFT，BOTTOM > TOP
小技巧：1)打开画图软件，选择 查看->缩放->自定义，将图片放到到800%
2)选择 查看->缩放->显示网格
这样就可以看到一个一个的像素
(2，使用new version动画方案调整如下设置：
#define CAPACITY_LEFT (278) #define CAPACITY_TOP (556) #define CAPACITY_RIGHT (441) #define CAPACITY_BOTTOM (817)
5、RecoveryUI 横屏
参考之前写的文章 MTK Recovery 模式横屏修改(适用于6.0 + 8.1+9.0)
6、系统导航栏位置调整，横屏后 navigationBarPosition 默认在左边
作为平板项目，需要将位置改为底部,直接修改 navigationBarPosition() 返回 NAV_BAR_BOTTOM
frameworks\base\services\core\java\com\android\server\policy\PhoneWindowManager.java
@NavigationBarPosition
private int navigationBarPosition(int displayWidth, int displayHeight, int displayRotation) {
//cchzneg annotaion for land scape
/*if (mNavigationBarCanMove && displayWidth > displayHeight) {
if (displayRotation == Surface.ROTATION_270) {
return NAV_BAR_LEFT;
} else {
return NAV_BAR_RIGHT;
}
}*/
return NAV_BAR_BOTTOM;
}
这样位置是变为底部了，但是三个按钮都重叠在一起了，需要修改 SystemUI 的布局显示
vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\phone\NavigationBarView.java
private void updateRotatedViews() {
//cczheng change rot0 rot90 for landscape
mRotatedViews[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 的默认高度和左边 Back 键区域太大的问题
vendor\mediatek\proprietary\packages\apps\SystemUI\src\com\android\systemui\statusbar\phone\NavigationBarInflaterView.java
private View createView(String buttonSpec, ViewGroup parent, LayoutInflater inflater) {
View v = null;
String button = extractButton(buttonSpec);
if (LEFT.equals(button)) {
//cchzheng change NAVSPACE to MENU_IME for small left back click area
String s = Dependency.get(TunerService.class).getValue(NAV_BAR_LEFT, MENU_IME_ROTATE/*NAVSPACE*/);
button = extractButton(s);
} else if (RIGHT.equals(button)) {
String s = Dependency.get(TunerService.class).getValue(NAV_BAR_RIGHT, MENU_IME_ROTATE);
button = extractButton(s);
}
...
frameworks\base\core\res\res\values\dimens.xml
<!-- Height of the bottom navigation / system bar. -->
<!--cczheng change 48dp to 30dp-->
<dimen name="navigation_bar_height">30dp</dimen>
ok，这样就大功告成了，完美的横屏适配
