这篇文章主要讲解了“Android开发sensor旋转屏问题如何解决”，文中的讲解内容简单清晰，易于学习与理解，下面请大家跟着小编的思路慢慢深入，一起来研究和学习“Android开发sensor旋转屏问题如何解决”吧！
一、查询 activity xml 配置screenOrientation信息：
找个测试机器，安装此APP。as中 devices explorer界面中打开此apk安装目录，双击apk。或者把apk托到as中，在反编译的资产xml文件搜索此activity，并查看 android:screenOrientation 属性。或者使用 aapt dump xmltree 命令查看。
configChanges 属性是为了防止重启activity
<activity android:theme="@ref/0x7f130170" android:label="@ref/0x7f1200c6" android:name="com.miui.gallery.activity.ExternalPhotoPageActivity" android:screenOrientation="4" android:configChanges="0xda0" android:showWhenLocked="true">
二、事件发生时间点分析：
事件发生时间点=录屏文件名的时间 + 录屏发生时视频经过的秒数
结合问题描述和usagestats服务的信息倒推事件发生时间点
三、logcat查看sensor激活状态：
此log是高通 sensors-hal 层打印的
状态栏--控制按钮--“方向锁定” 开启时，en=0 即 sensor关闭！
/vendor/qcom/proprietary/sensors-see/sensors-hal-2.0/framework/sensors_hal.cpp
logcat中搜索
device_orientation
2021-08-09 17:07:23.037 1021-1021/? I/sensors-hal: activate:209, android.sensor.device_orientation/272 en=1 2021-08-09 17:07:23.048 1021-1021/? I/sensors-hal: activate:220, android.sensor.device_orientation/272 en=1 completed
四、查看APP是否注册旋转屏sensor
有的APP注册的是加速度sensor，使用自己的算法计算
APP注册 android.view.OrientationEventListener 回调，自身代码调节旋转Demo：
private void registerOrientation(){
OrientationEventListener orientationListener = new OrientationEventListener(this) {
@Override
public void onOrientationChanged(int orientation) {
Log.d(TAG, "onOrientationChanged: " + orientation);
if (orientation == OrientationEventListener.ORIENTATION_UNKNOWN) {
return; // 手机平放时，检测不到有效的角度
}
// 设置竖屏
if (((orientation >= 0) && (orientation <= 30)) || (orientation >= 330)) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT);
}
// 设置横屏
else if (((orientation >= 230) && (orientation <= 310))) {
setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_LANDSCAPE);
}
}
};
orientationListener.enable();
}五、sensorservice 信息
DUMP OF SERVICE CRITICAL sensorservice:
bugreport dumpsys sensorservice信息查看 注册的sensor信息
Previous Registrations: 17:57:12 + 0x0000002d pid=20420 uid=10265 package=android.view.OrientationEventListener samplingPeriod=200000us batchingPeriod=0us 17:57:12 + 0x0000002d pid=20420 uid=10265 package=android.view.OrientationEventListener samplingPeriod=200000us batchingPeriod=0us
相关sensor：
// 加速计传感器 handle: 0x0100000b
// app通常会注册回调 android.view.OrientationEventListener 此类内部注册了 加速计sensor，用来监听旋转角度
// android.sensor.accelerometer
public static final int TYPE_ACCELEROMETER = 1;
0x0100000b) lsm6dso Accelerometer Non-wakeup | STMicro | ver: 142870 | type: android.sensor.accelerometer(1) | perm: n/a | flags: 0x00000980
continuous | minRate=1.00Hz | maxRate=415.97Hz | FIFO (max,reserved) = (10000, 3000) events | non-wakeUp |
highest rate level = 3, support shared mem: gralloc,
0x0100015f) lsm6dso Accelerometer-Uncalibrated Non-wakeup | STMicro | ver: 142870 | type: android.sensor.accelerometer_uncalibrated(35) | perm: n/a | flags: 0x00000980
continuous | minRate=1.00Hz | maxRate=415.97Hz | FIFO (max,reserved) = (10000, 3000) events | non-wakeUp |
highest rate level = 3, support shared mem: gralloc,
0x5f676273) Gyroscope Bias (debug) | AOSP | ver: 1 | type: android.sensor.accelerometer(1) | perm: n/a | flags: 0x00000000
continuous | maxDelay=0us | maxRate=415.97Hz | no batching | non-wakeUp |
// 方向传感器---用户app旋转屏 handle： 0x0100010f
// android.sensor.device_orientation
public static final int TYPE_DEVICE_ORIENTATION = 27;
0x0100010f) device_orient Non-wakeup | xiaomi | ver: 1 | type: android.sensor.device_orientation(27) | perm: n/a | flags: 0x00000002
on-change | maxDelay=0us | minDelay=0us | FIFO (max,reserved) = (10000, 0) events | non-wakeUp |
// 其 Wakeup handle： 0x01000110 com.android.server.policy.WindowOrientationListener 注册此类型
0x01000110) device_orient Wakeup | xiaomi | ver: 1 | type: android.sensor.device_orientation(27) | perm: n/a | flags: 0x00000003
on-change | maxDelay=0us | minDelay=0us | FIFO (max,reserved) = (10000, 0) events | wakeUp |bugreport device_orient 信息查看上报事件
# 0 表示通常的正常
# 1 表示顺时针旋转90度
device_orient Wakeup: last 10 events
1 (ts=68477.447943014, wall=17:49:58.724) 0.00,
2 (ts=68478.554363222, wall=17:49:59.831) 0.00,
3 (ts=68478.989033691, wall=17:50:00.265) 0.00,
4 (ts=68479.423711660, wall=17:50:00.701) 1.00,
5 (ts=68482.743111608, wall=17:50:04.022) 0.00,
6 (ts=68486.101931400, wall=17:50:07.379) 0.00,
7 (ts=68495.309003118, wall=17:50:16.585) 0.00,
8 (ts=68505.308247806, wall=17:50:26.584) 1.00,
9 (ts=68507.166153170, wall=17:50:28.444) 0.00,
10 (ts=68513.214244108, wall=17:50:34.491) 0.00,六、有现场，查看当前activity信息
logcat查看当前activity： 有很多其他日志可供查看
07-31 17:50:25.687563 4486 4486 D Nav_RecentsImpl: onResumed className=com.miui.gallery.activity.ExternalPhotoPageActivity,mIsInAnotherPro=false,isKeyguardLocked=false,mNavStubView=com.miui.home.recents.NavStubView{f994da4 G.E...... ......I. 0,0-1080,35}根据DUMP OF SERVICE usagestats:内容 查看时间点的APP
time="2021-07-08 09:29:02" type=ACTIVITY_PAUSED package=com.ainemo.dragoon class=com.meeting.call.activity.XylinkMeetingActivity instanceId=40437940 taskRootPackage=com.ainemo.dragoon taskRootClass=com.ainemo.android.activity.MainActivity flags=0x0 log的结尾： In-memory daily stats timeRange="2021/8/21 08:14–18:08" packages
现场，命令方式查询当前activity：
adb shell dumpsys window | findstr mCurrentFocus dumpsys window | grep mCurrentFocus
查看包信息
adb shell dumpsys package com.eg.android.AlipayGphone
$ adb shell dumpsys package com.android.stk
Packages:
Package [com.android.stk] (ac39f18):
userId=1001
sharedUser=SharedUserSetting{411f5ce android.uid.phone/1001}
pkg=Package{fde9cef com.android.stk}
codePath=/system/app/Stk
resourcePath=/system/app/Stk # apk 安装包位置
legacyNativeLibraryDir=/system/app/Stk/lib
extractNativeLibs=true
primaryCpuAbi=null
secondaryCpuAbi=null
cpuAbiOverride=null
versionCode=31 minSdk=31 targetSdk=31
minExtensionVersions=[]
versionName=12 # 版本号
usesNonSdkApi=true
splits=[base]
apkSigningVersion=3
applicationInfo=PackageImpl{fde9cef com.android.stk}
flags=[ SYSTEM HAS_CODE ALLOW_CLEAR_USER_DATA ALLOW_BACKUP ]
privateFlags=[ PRIVATE_FLAG_ACTIVITIES_RESIZE_MODE_RESIZEABLE_VIA_SDK_VERSION ALLOW_AUDIO_PLAYBACK_CAPTURE DEFAULT_TO_DEVICE_PROTECTED_STORAGE DIRECT_BOOT_AWARE PRIVATE_FLAG_ALLOW_NATIVE_HEAP_POINTER_TAGGING ]
forceQueryable=false
queriesPackages=[]
dataDir=/data/user_de/0/com.android.stk # 数据目录
supportsScreens=[small, medium, large, xlarge, resizeable, anyDensity] ############
timeStamp=2009-01-01 08:00:00
firstInstallTime=2009-01-01 08:00:00 # 首次安装时间
lastUpdateTime=2009-01-01 08:00:00 # 上次更新时间
signatures=PackageSignatures{573d3fc version:3, signatures:[b4addb29], past signatures:[]}
installPermissionsFixed=false
pkgFlags=[ SYSTEM HAS_CODE ALLOW_CLEAR_USER_DATA ALLOW_BACKUP ]查看apk内部 AndroidManifest.xml
aapt dump xmltree C:UserslishDesktop est.apk AndroidManifest.xml
七、App写旋转屏的几种方式：
三种方式做旋转屏:
大部分都是直接使用系统控制的，就是SystemServer进程注册的 com.android.server.policy.WindowOrientationListener 监听，然后直接控制APP的界面旋转，这个使用的 device_orient sensor。 但是因手机不同，厂商不同，有些竖直反向的旋转，系统不准旋转。
// frameworks/base/services/core/java/com/android/server/wm/DisplayRotation.java // 内部类： DisplayRotation.OrientationListener private class OrientationListener extends WindowOrientationListener // 在systemserver进程中是通过 com.android.server.wm.DisplayRotation$OrientationListener 操作
因此，大部分视频app又会独立注册 android.view.OrientationEventListener 监听，这个监听直接使用的加速度sensor(android.sensor.accelerometer) 这个sensor直接返回0~360度的角度。然后APP根据角度，自己控制旋转。此时“方向锁定”不起作用。
app直接使用 地磁+加速度 传感器
八、bugreport 中 mUserRotation 信息
adb shell dumpsys window displays
dumpsys window displays | grep DisplayRotation -A 30
文件中搜索 mUserRotation=
WINDOW MANAGER DISPLAY CONTENTS (dumpsys window displays)
DisplayRotation
mCurrentAppOrientation=SCREEN_ORIENTATION_PORTRAIT
mLastOrientation=1
mRotation=0 mDeferredRotationPauseCount=0
mLandscapeRotation=ROTATION_90 mSeascapeRotation=ROTATION_270
mPortraitRotation=ROTATION_0 mUpsideDownRotation=ROTATION_180
mSupportAutoRotation=true
WindowOrientationListener
mEnabled=false
mCurrentRotation=ROTATION_0
mSensorType=null
mSensor={Sensor name="device_orient Wakeup", vendor="xiaomi", version=1, type=27, maxRange=1.0, resolution=1.0, power=0.001, minDelay=0}
mRate=2
OrientationSensorJudge
mDesiredRotation=-1
mProposedRotation=-1
mTouching=false # 触摸屏幕情况下，不调用 DisplayRotation.java$OrientationListener 中的 onProposedRotationChanged 方法。即不会旋转
mTouchEndedTimestampNanos=617520702367 # 抬起手时，机器开机以来的时间 如果当前时间
mCarDockRotation=-1 mDeskDockRotation=-1
mUserRotationMode=USER_ROTATION_LOCKED mUserRotation=ROTATION_90 mAllowAllRotations=false # 正常 mUserRotationMode=USER_ROTATION_LOCKED mUserRotation=ROTATION_0
mDemoHdmiRotation=ROTATION_90 mDemoHdmiRotationLock=false mUndockedHdmiRotation=-1
mLidOpenRotation=-1
mFixedToUserRotation=false九、setting信息查询 没大用，只能查当前信息
D:>adb shell "dumpsys settings | grep rotation" _id:109 name:user_rotation pkg:android value:0 default:0 defaultSystemSet:true _id:17 name:accelerometer_rotation pkg:android value:0 default:0 defaultSystemSet:true # /frameworks/base/core/java/android/provider/Settings.java ACCELEROMETER_ROTATION # 0 表示 加速度sensor 不会用于控制屏幕方向, 1 反之. _id:108 name:hide_rotation_lock_toggle_for_accessibility pkg:com.android.systemui value:0 default:0 defaultSystemSet:true
bugreport 中：
DUMP OF SERVICE settings:
十、用户点击状态栏“锁定旋转”行为分析：
bugreport 搜索 DeviceStateMonitor:
分析用户旋转屏时间点
++++++++++++++++++++++++++++++++
DeviceStateMonitor:
mIsTetheringOn=false
mIsScreenOn=true
mIsCharging=false
mIsPowerSaveOn=false
mIsLowDataExpected=false
mIsCarModeOn=false
mUnsolicitedResponseFilter=127
mIsWifiConnected=true
mIsAlwaysSignalStrengthReportingEnabled=false
Local logs:
2021-08-22T13:15:02.576 - Screen on for display=Display id 0: DisplayInfo{"内置屏幕", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2400, largest app 2320 x 2276, smallest app 1080 x 956, appVsyncOff 1000000, presDeadline 13333332, mode 3, defaultMode 1, modes [{id=1, width=1080, height=2400, fps=60.000004}, {id=2, width=1080, height=2400, fps=144.00002}, {id=3, width=1080, height=2400, fps=120.00001}, {id=4, width=1080, height=2400, fps=90.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=420.0, mMaxAverageLuminance=210.1615, mMinLuminance=0.323}, minimalPostProcessingSupported false, rotation 0, state ON}, DisplayMetrics{density=2.75, width=1080, height=2276, scaledDensity=2.75, xdpi=394.705, ydpi=394.307}, isValid=true
2021-08-22T13:15:03.023 - Screen on for display=Display id 0: DisplayInfo{"内置屏幕", displayId 0, FLAG_SECURE, FLAG_SUPPORTS_PROTECTED_BUFFERS, FLAG_TRUSTED, real 1080 x 2400, largest app 2320 x 2276, smallest app 1080 x 956, appVsyncOff 1000000, presDeadline 13333332, mode 3, defaultMode 1, modes [{id=1, width=1080, height=2400, fps=60.000004}, {id=2, width=1080, height=2400, fps=144.00002}, {id=3, width=1080, height=2400, fps=120.00001}, {id=4, width=1080, height=2400, fps=90.0}], hdrCapabilities HdrCapabilities{mSupportedHdrTypes=[2, 3, 4], mMaxLuminance=420.0, mMaxAverageLuminance=210.1615, mMinLuminance=0.323}, minimalPostProcessingSupported false, rotation 0, state ON}, DisplayMetrics{density=2.75, width=1080, height=2276, scaledDensity=2.75, xdpi=394.705, ydpi=394.307}, isValid=true
2021-08-22T13:15:42.385 - Wifi (default) connected
...............
++++++++++++++++++++++++++++++++
TransportManager:bugreport 搜索 BUFFER QSLog:
分析 用户点击 “方向锁定” 时间点
现场执行命令： dumpsys activity service com.android.systemui/.dump.SystemUIAuxiliaryDumpService
BUFFER QSLog: ============================================================================ 12-22 14:48:42.160 V QSLog: [custom(com.miui.securitycenter/com.miui.superpower.notification.SuperPowerTileService)] Tile updated. Label=超级省电. State=1. Icon=null. 12-22 14:48:42.160 V QSLog: [custom(com.milink.service/com.milink.ui.service.MiLinkTileService)] Tile updated. Label=投屏. State=1. Icon=null. 12-22 14:48:42.160 V QSLog: [custom(com.miui.mishare.connectivity/.tile.MiShareTileService)] Tile updated. Label=小米互传. State=1. Icon=null. 12-22 16:50:34.787 VERBOSE QSLog [rotation] Tile updated. Label=方向锁定. State=2. Icon=ResourceIcon[resId=0x7f0805a0]. 12-22 16:51:07.775 DEBUG QSLog [rotation] Tile clicked. StatusBarState=SHD. TileState=active 12-22 16:51:07.790 VERBOSE QSLog [rotation] Tile updated. Label=方向锁定. State=1. Icon=ResourceIcon[resId=0x7f0805a1].
Label=方向锁定. State=2 表示 锁定
logcat 搜索 “ send click msg ” 状态栏点击事件
android_util_SeempLog.cpp 这个高通的log似乎未起作用
十一、app调用 setRequestedOrientation 请求变更activity方向配置
需要自己写打点log
X、一些知识点：
亮屏是否默认开启旋转屏sensor： 锁定旋转后，device_orient 这个sensor是否一直处于 enable状态，google 默认开启
/frameworks/base/core/java/android/provider/Settings.java
/** * The default state of SHOW_ROTATION_SUGGESTIONS. * @hide */ public static final int SHOW_ROTATION_SUGGESTIONS_DEFAULT = // SHOW_ROTATION_SUGGESTIONS_ENABLED; SHOW_ROTATION_SUGGESTIONS_DISABLED;